freecalypso-sw: gsm-fw/services/ffs/core.c annotate

annotate gsm-fw/services/ffs/core.c @ 642:b039cafc8e31

PCM integration: linking

author	Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date	Wed, 03 Sep 2014 17:42:09 +0000
parents	842c9fd828fd
children

rev	line source
211 847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2 * Flash File System (ffs)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	3 * Idea, design and coding by Mads Meisner-Jensen, mmj@ti.com
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	4 *
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	5 * FFS core functions (not public)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	6 *
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	7 * $Id: core.c 1.156.1.13.1.1.1.50 Thu, 08 Jan 2004 15:05:23 +0100 tsj $
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	8 *
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	9 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	10
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	11 #include "ffs.h"
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	12 #include "core.h"
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	13 #include "drv.h"
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	14 #include "ffstrace.h"
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	15 #include "tmffs.h"
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	16 #include <string.h>
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	17 #include <limits.h>
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	18
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	19 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	20 * Globals
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	21 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	22
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	23 struct fs_s fs;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	24 struct block_stat_s bstat[FFS_BLOCKS_MAX];
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	25
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	26 struct ffs_stats_s stats;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	27
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	28 // The following line is automatically expanded by the revision control
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	29 // system to make a unique ffs revision. The revision can be retrieved by
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	30 // ffs_query().
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	31
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	32 //$Format: "static const uint16 ffs_revision = ($ProjectMajorVersion$<<12)\|(0x$ProjectMinorVersion$);"$
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	33 static const uint16 ffs_revision = (5<<12)\|(0x56);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	34
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	35
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	36 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	37 * Main Functions
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	38 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	39
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	40 // Create a new ffs object (object type is undefined)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	41 iref_t object_create(const char name, const char buf, int size, iref_t dir)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	42 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	43 iref_t i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	44 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	45 int realsize, namelength;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	46 offset_t offset;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	47 char *dataaddr;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	48 char is_journal;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	49 char name_copy[FFS_FILENAME_MAX + 1]; // NOTEME: make dynamic?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	50
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	51 ttw(ttr(TTrObj, "ocr(%s){" NL, name));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	52 tw(tr(TR_BEGIN, TrObject, "object_create('%s', ?, %d, %d) {\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	53 name, size, dir));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	54
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	55 // NOTEME: special case just for format()!?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	56 if (dir == 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	57 namelength = ffs_strlen(name);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	58 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	59 namelength = is_filename(name);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	60
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	61 if (namelength < 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	62 tw(tr(TR_END, TrObject, "} %d\n", namelength));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	63 ttw(ttr(TTrObj, "} %d" NL, namelength));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	64 return namelength;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	65 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	66
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	67 is_journal = (name[0] == '.' && ffs_strcmp(name, FFS_JOURNAL_NAME) == 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	68 if (is_journal)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	69 tw(tr(TR_FUNC, TrObject, "Journal file creation!\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	70 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	71 if (buf == NULL && size > 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	72 tw(tr(TR_END, TrObject, "} %d\n", EFFS_INVALID));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	73 ttw(ttr(TTrObj, "} %d" NL, EFFS_INVALID));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	74 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	75 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	76
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	77 // We don't write the data null_terminator if no data exists
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	78 realsize = namelength + 1 + size + (size > 0 ? 1 : 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	79 fs.journal.size = realsize = atomalign(realsize);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	80
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	81 // We save the diri in the ram journal because this will be updated if
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	82 // chunk_alloc trigger a data_reclaim
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	83 fs.journal.diri = dir;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	84
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	85 // We have to make a local copy of name because name can be destroyed if
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	86 // it points into an object that is relocated by an ffs_data_reclaim.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	87 memcpy(name_copy, name, ffs_strlen(name) + 1);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	88
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	89 if ((i = chunk_alloc(realsize, is_journal, &offset)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	90 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	91
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	92 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	93
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	94 // Write filename including null-terminator
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	95 ffsdrv.write(addr2name(offset2addr(offset)), name_copy, namelength + 1);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	96
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	97 // Write data and null terminator. We null-terminate the data block,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	98 // such that blocks_fsck() can determine the amount of used data block
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	99 // space correctly. Note that we don't write null-terminator for objects
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	100 // with no data, e.g. empty files and directories.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	101 if (size > 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	102 dataaddr = addr2name(offset2addr(offset)) + namelength + 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	103 // Do NOT write data if we are creating the journal file --- it must
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	104 // be created as empty!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	105 if (!is_journal)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	106 ffsdrv.write(dataaddr, buf, size);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	107 ffsdrv_write_byte(dataaddr + size, 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	108 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	109
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	110 // Insert object in parent directory if this is not the root dir
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	111 if (dir != 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	112 fs.journal.diri = dir_traverse(fs.journal.diri, 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	113 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	114 fs.journal.diri = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	115
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	116 tw(tr(TR_END, TrObject, "} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	117 ttw(ttr(TTrObj, "} %d" NL,i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	118
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	119 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	120 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	121
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	122 int file_read(const char name, void addr, int size)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	123 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	124 int size_read, object_size, total_read = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	125 iref_t i, dir;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	126 char *not_used;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	127 fd_t fdi;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	128
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	129 if (size < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	130 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	131
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	132 if ((i = object_lookup(name, &not_used, &dir)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	133 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	134
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	135 if ((fdi = get_fdi(i)) >= 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	136 if (is_open_option(fs.fd[fdi].options, FFS_O_WRONLY))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	137 return EFFS_LOCKED;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	138
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	139 object_size = object_datasize(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	140
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	141 do {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	142 size_read = segment_read(i, (char*)addr + total_read,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	143 size - total_read, 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	144 total_read += size_read;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	145 } while ((i = segment_next(i)) != 0 && size > total_read);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	146
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	147 // Did we read the comlete object?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	148 if (object_size > size)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	149 return EFFS_FILETOOBIG;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	150
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	151 return total_read; // number of bytes read
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	152 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	153
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	154
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	155 int stream_read(fd_t fdi, void *src, int size)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	156 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	157 int offset, size_read = 0, copied = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	158 iref_t i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	159
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	160 if (!is_fd_valid(fdi))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	161 return EFFS_BADFD;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	162
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	163 if (!is_open_option(fs.fd[fdi].options, FFS_O_RDONLY))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	164 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	165
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	166 if (src == NULL \|\| size < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	167 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	168
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	169 // NOTEME: do this in another way?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	170 // No data to read because fp is ad eof.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	171 if (fs.fd[fdi].fp >= fs.fd[fdi].size) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	172 tw(tr(TR_FUNC, TrObject, "eof(no data read)\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	173 return 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	174 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	175
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	176 segfile_seek(fs.fd[fdi].seghead, fs.fd[fdi].fp, &i, &offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	177
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	178 // Read data from chunks or buffer until all data is read or eof is reach.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	179 do {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	180 if (is_offset_in_buf(fs.fd[fdi].fp, fdi)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	181 offset = fs.fd[fdi].fp - fs.fd[fdi].wfp;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	182 size_read = size - copied; // requested data that is left
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	183 // Saturate size to max left in buf or max left to eof
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	184 if (size_read > (fs.chunk_size_max - offset))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	185 size_read = fs.chunk_size_max - offset;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	186 if (size_read > (fs.fd[fdi].size - fs.fd[fdi].fp))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	187 size_read = fs.fd[fdi].size - fs.fd[fdi].fp;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	188
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	189 memcpy((char*)src + copied, fs.fd[fdi].buf + offset, size_read);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	190 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	191 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	192 // Data is only in the chunk
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	193 size_read = segment_read(i, (char*) src + copied,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	194 size - copied, offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	195 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	196
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	197 offset = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	198 fs.fd[fdi].fp += size_read;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	199 copied += size_read;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	200
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	201 if ((i = segment_next(i)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	202 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	203
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	204 } while (copied != size && fs.fd[fdi].fp < fs.fd[fdi].size);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	205
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	206 if (copied == size) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	207 tw(tr(TR_FUNC, TrObject, "All requested data has been read\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	208 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	209 if (fs.fd[fdi].fp >= fs.fd[fdi].size) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	210 tw(tr(TR_FUNC, TrObject, "eof\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	211 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	212
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	213 return copied; // number of bytes read
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	214 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	215
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	216
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	217 int object_read(const char name, char buf, int size, int linkflag)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	218 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	219 iref_t i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	220 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	221 struct xstat_s stat;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	222 char *p;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	223
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	224 tw(tr(TR_BEGIN, TrObject, "object_read('%s', 0x%x, %d, %d) {\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	225 name, buf, size, linkflag));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	226
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	227 if (buf == NULL \|\| size < 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	228 tw(tr(TR_END, TrObject, "} %d\n", EFFS_INVALID));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	229 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	230 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	231
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	232 i = object_stat(name, &stat, linkflag, 0, 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	233 if (i < 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	234 tw(tr(TR_END, TrObject, "} %d\n", EFFS_NOTFOUND));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	235 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	236 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	237
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	238 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	239
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	240 if (stat.size > size) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	241 tw(tr(TR_END, TrObject, "} %d\n", EFFS_FILETOOBIG));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	242 return EFFS_FILETOOBIG;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	243 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	244
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	245 // return error if called as readlink() and object is not a link
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	246 if (!is_object(ip, OT_LINK) && linkflag) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	247 tw(tr(TR_END, TrObject, "} %d\n", EFFS_INVALID));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	248 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	249 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	250
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	251 // Even though the ffs architecture allows to have data in directory
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	252 // objects, we don't want to complicate matters, so we return an error
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	253 if (is_object(ip, OT_DIR) && !(fs.flags & FS_DIR_DATA)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	254 tw(tr(TR_END, TrObject, "} %d\n", EFFS_NOTAFILE));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	255 return EFFS_NOTAFILE;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	256 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	257
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	258 p = offset2addr(location2offset(ip->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	259 size = stat.size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	260
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	261 p = addr2data(p, ip);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	262
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	263 // Copy data. NOTEME: Should be optimized!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	264 while (size--)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	265 buf++ = p++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	266
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	267 tw(tr(TR_END, TrObject, "} %d\n", stat.size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	268 return stat.size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	269 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	270
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	271
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	272 // Convert an object data addres to pure data address
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	273 char addr2data(const char addr, const struct inode_s *ip)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	274 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	275 // OT_SEGMENT is pure data so it do not have any name to skip
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	276 if (!is_object(ip, OT_SEGMENT)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	277 while (*addr++)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	278 ;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	279 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	280
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	281 return (char *) addr;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	282 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	283
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	284 // Calculate exact size of file data; without filename and null terminator
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	285 // and without data null terminator and succeeding alignment padding.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	286 // NOTEME: Does this also work for empty files and directories?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	287 int object_datasize(iref_t i)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	288 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	289 iref_t not_used;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	290 return segfile_seek(i, INT_MAX, &not_used, 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	291 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	292
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	293 iref_t object_stat(const char name, struct xstat_s stat,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	294 int linkflag, int fdi, int extended)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	295 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	296 iref_t i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	297 fd_t other_fdi;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	298 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	299
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	300 tw(tr(TR_BEGIN, TrObject, "object_stat('%s', ?, %x, %d, %d) {\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	301 name, linkflag, fdi, extended));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	302
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	303 if (stat == NULL) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	304 tw(tr(TR_END, TrObject, "} %d\n", EFFS_INVALID));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	305 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	306 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	307
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	308 if (linkflag)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	309 i = object_lookup_once(name, 0, 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	310 else if (name == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	311 fdi -= FFS_FD_OFFSET;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	312 if (!is_fd_valid(fdi)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	313 tw(tr(TR_END, TrObject, "} %d\n", EFFS_BADFD));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	314 return EFFS_BADFD;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	315 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	316 i = fs.fd[fdi].seghead;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	317 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	318 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	319 i = object_lookup(name, 0, 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	320
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	321 if (i > 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	322 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	323 stat->type = ip->flags & OT_MASK;;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	324 stat->flags = ~ip->flags & OF_MASK;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	325 stat->inode = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	326
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	327 // If the file is open so get the size from the file descriptor
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	328 if ((other_fdi = get_fdi(i)) >= 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	329 if (i == fs.fd[other_fdi].seghead) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	330 stat->size = fs.fd[other_fdi].size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	331 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	332 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	333
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	334 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	335 stat->size = object_datasize(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	336
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	337 if (extended) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	338 stat->location = ip->location;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	339 stat->block = offset2block(location2offset(stat->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	340 stat->space = ip->size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	341 while ((i = segment_next(i)) > 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	342 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	343 stat->space += ip->size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	344 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	345 stat->reserved = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	346 stat->sequence = ip->sequence;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	347 stat->updates = ip->updates;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	348 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	349 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	350
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	351 tw(tr(TR_END, TrObject, "} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	352
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	353 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	354 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	355
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	356
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	357 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	358 * Remove and Rename
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	359 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	360
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	361 // Delete a ffs object
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	362 effs_t object_remove(iref_t i)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	363 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	364 struct inode_s *ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	365 iref_t entries;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	366
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	367 tw(tr(TR_BEGIN, TrObject, "object_remove(%d) {\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	368
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	369 // if object is a dir, ensure it is empty
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	370 if (is_object(ip, OT_DIR)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	371 dir_traverse(-i, &entries);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	372 if (entries) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	373 tw(tr(TR_END, TrObject, "} %d\n", EFFS_DIRNOTEMPTY));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	374 return EFFS_DIRNOTEMPTY;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	375 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	376 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	377
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	378 // We don't actually journal deletions, this is why we call
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	379 // journal_commit() instead of journal_end(). We have to set
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	380 // journal.location to something else, otherwise journal_commit() will
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	381 // not discount the number of bytes lost by this delete.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	382 if (is_object(ip, OT_DIR)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	383 journal_begin(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	384 fs.journal.location = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	385 journal_commit(0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	386 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	387 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	388 // NOTE: This is not nice if we get a break down however the
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	389 // remaning chunks will be removed later by a block reclaim.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	390 do {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	391 journal_begin(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	392 fs.journal.location = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	393 journal_commit(0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	394 } while ((i = segment_next(i)) != 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	395 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	396
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	397 tw(tr(TR_END, TrObject, "} %d\n", EFFS_OK));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	398
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	399 return EFFS_OK;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	400 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	401
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	402 // Rename an object. <newname> is the new name.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	403 iref_t object_rename(iref_t oldi, const char *newname, iref_t newdir)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	404 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	405 iref_t newi;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	406 struct inode_s *oldip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	407 char *olddata;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	408 int oldsize, namelength, realsize, offset;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	409
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	410 tw(tr(TR_BEGIN, TrObject, "object_rename(%d, '%s', %d) {\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	411 oldi, newname, newdir));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	412
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	413 oldip = inode_addr(oldi);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	414 oldsize = segment_datasize(oldip);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	415
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	416 // Make sure that there is enough space to make the rename without
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	417 // object_create() trigger a data_reclaim() (awoid relocate oldi/data
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	418 // source)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	419 namelength = is_filename(newname);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	420 realsize = namelength + 1 + oldsize + (oldsize > 0 ? 1 : 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	421 realsize = atomalign(realsize);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	422
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	423 // Save newdir in fs.xx because it will be updated if it is relocated.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	424 fs.i_backup = newdir;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	425
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	426 if ((offset = data_prealloc(realsize)) <= 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	427 return EFFS_NOSPACE;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	428
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	429 // Use fs.journal.oldi because i would have been updated if
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	430 // data_reclaim() relocate oldi
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	431 oldip = inode_addr(fs.journal.oldi);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	432 olddata = offset2addr(location2offset(oldip->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	433 olddata = addr2data(olddata, oldip);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	434
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	435 newi = object_create(newname, olddata, oldsize, fs.i_backup);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	436
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	437 tw(tr(TR_END, TrObject, "} %d\n", newi));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	438 return newi;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	439 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	440
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	441
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	442 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	443 * Object Lookup
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	444 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	445
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	446 // We can not use global variables, only local --- we must be re-entrant!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	447
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	448 #if 0
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	449
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	450 // NEW CODE!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	451
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	452 iref_t ffs_object_lookup_do(const char *path, iref_t dir, int readlink);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	453
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	454 iref_t ffs_object_lookup_once(const char path, char leaf, iref_t dir)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	455 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	456 iref_t i, mydir;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	457 const char *mypath;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	458
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	459 tw(tr(TR_BEGIN, TrLookup, "object_lookup_once('%s', ?, ?) {\n", path));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	460 ttw(ttr(TTrInode, "olu(%s){" NL, path));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	461
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	462 mypath = path;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	463 mydir = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	464 i = object_lookup_do(&mypath, &mydir, 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	465 if (leaf) leaf = (char ) mypath;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	466 if (dir) *dir = mydir;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	467
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	468 tw(tr(TR_END, TrLookup, "} (%d, '%s') %d\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	469 (dir ? dir : 0), (leaf ? leaf : ""), i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	470 ttw(ttr(TTrInode, "} %d" NL, i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	471
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	472 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	473 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	474
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	475 // Lookup an object. Symlinks are followed.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	476 iref_t ffs_object_lookup(const char path, char leaf, iref_t dir)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	477 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	478 iref_t i, mydir;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	479 const char *mypath;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	480
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	481 tw(tr(TR_BEGIN, TrLookup, "object_lookup('%s', ?, ?) {\n", path));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	482 ttw(ttr(TTrInode, "olu(%s){" NL, path));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	483
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	484 mypath = path;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	485 mydir = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	486 i = object_lookup_do(&mypath, &mydir, 1);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	487
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	488 if (is_object(ip, OT_LINK)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	489 // If it is a link, we unconditionally follow it
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	490 mypath = offset2addr(location2offset(ip->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	491 mypath += ffs_strlen(mypath) + 1; // point to data
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	492 if (*mypath == '/') {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	493 mypath++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	494 depth = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	495 d = fs.root;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	496 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	497 i = d;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	498 ip = inode_addr(d);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	499 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	500
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	501 if (leaf) leaf = (char ) mypath;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	502 if (dir) *dir = mydir;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	503
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	504 tw(tr(TR_END, TrLookup, "} (%d, '%s') %d\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	505 (dir ? dir : 0), (leaf ? leaf : ""), i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	506 ttw(ttr(TTrInode, "} %d" NL, i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	507
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	508 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	509 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	510
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	511 // NEW CODE!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	512
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	513 // Ignore all occurrences of two successive slashes. Accept trailing slash
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	514 // in directory name.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	515 iref_t ffs_object_lookup_do(const char *path, iref_t dir, int followlink)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	516 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	517 // int lookup_followed; // number of symlinks followed
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	518 iref_t i, j, d;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	519 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	520 const char p, q, mypath = path;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	521 uint8 depth = 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	522
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	523 tw(tr(TR_FUNC, TrLookup, "object_lookup_do('%s', ?, %d) {\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	524 *path, followlink));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	525
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	526 d = fs.root;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	527 if (*mypath == '/') {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	528 mypath++; // silently ignore and skip prefix slash
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	529 // root directory is a special case
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	530 if (*mypath == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	531 j = d;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	532 if (path) *path = mypath;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	533 if (dir) *dir = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	534 tw(tr(TR_NULL, TrLookup, "} ('%s', %d) %d\n", mypath, 0, j));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	535 return j;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	536 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	537 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	538
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	539 // set default return value if root dir is empty (child link empty)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	540 j = EFFS_NOTFOUND;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	541
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	542 ip = inode_addr(d);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	543
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	544 tw(tr(TR_FUNC, TrLookup, ""));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	545
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	546 while ((i = ip->child) != (iref_t) IREF_NULL)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	547 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	548 j = 0; // default to not found
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	549 do {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	550 tw(tr(TR_NULL, TrLookup, " %d", (int) i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	551
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	552 p = mypath;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	553 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	554 if (is_object_valid(ip) && !is_object(ip, OT_SEGMENT)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	555 q = addr2name(offset2addr(location2offset(ip->location)));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	556 tw(tr(TR_NULL, TrLookup, ":%s", q));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	557 while (p == q && p != 0 && q != 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	558 p++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	559 q++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	560 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	561 if (q == 0 && (p == 0 \|\| *p == '/')) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	562 j = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	563 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	564 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	565 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	566 } while ((i = ip->sibling) != (iref_t) IREF_NULL);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	567
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	568 if (j == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	569 // we did not find this component of the mypath. Let's see if this
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	570 // was the leafname component or not...
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	571 while (p != 0 && p != '/')
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	572 p++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	573
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	574 if (*p == 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	575 // The mypath component was indeed the leafname
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	576 j = EFFS_NOTFOUND;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	577 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	578 // The path component was not the last, so it obviously
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	579 // contained an object that was not a directory.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	580 j = EFFS_NOTADIR;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	581 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	582 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	583
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	584 if (*p == '/') {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	585 // if there are more path components, the object found must be a
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	586 // directory or a symlink...
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	587 if (is_object(ip, OT_LINK)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	588 // If it is a link, we unconditionally follow it
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	589 mypath = offset2addr(location2offset(ip->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	590 mypath += ffs_strlen(mypath) + 1; // point to data
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	591 if (*mypath == '/') {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	592 mypath++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	593 depth = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	594 d = fs.root;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	595 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	596 i = d;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	597 ip = inode_addr(d);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	598 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	599 else if (is_object(ip, OT_DIR)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	600 mypath = p + 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	601 d = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	602 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	603 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	604 j = EFFS_NOTADIR;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	605 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	606 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	607 if (++depth > fs.path_depth_max) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	608 j = EFFS_PATHTOODEEP;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	609 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	610 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	611
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	612 // if this dir inode has no children, we will leave the while
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	613 // loop, so we preset the return error code. NOTEME: Not
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	614 // strictly correct because if we still have a lot of the
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	615 // pathname left, it should return the error EFFS_NOTADIR
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	616 j = EFFS_NOTFOUND;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	617
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	618 tw(tr(TR_NULL, TrLookup, " /"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	619
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	620 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	621 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	622 // It is a fact that *p == 0. So we found the object
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	623 if (is_object(ip, OT_LINK) && followlink) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	624 // If object is a link, we conditionally follow it...
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	625 mypath = offset2addr(location2offset(ip->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	626 mypath += ffs_strlen(mypath) + 1; // point to data
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	627 if (*mypath == '/') {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	628 mypath++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	629 depth = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	630 d = fs.root;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	631 i = fs.root;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	632 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	633 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	634 i = d;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	635 ip = inode_addr(d);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	636 tw(tr(TR_NULL, TrLookup, " -%d->", d));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	637 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	638 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	639 break; // Success, we found the object!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	640 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	641 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	642 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	643
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	644 if (path) path = (char ) mypath;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	645 if (dir) *dir = d;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	646
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	647 tw(tr(TR_NULL, TrLookup, "} (%d, '%s') %d\n", d, mypath, j));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	648
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	649 return j;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	650 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	651
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	652 #else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	653
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	654 // Lookup an object. Symlinks are followed.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	655 iref_t object_lookup(const char path, char leaf, iref_t dir)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	656 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	657 iref_t i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	658 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	659
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	660 tw(tr(TR_BEGIN, TrLookup, "object_lookup('%s', ?, ?) {\n", path));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	661 ttw(ttr(TTrInode, "olu(%s){" NL, path));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	662
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	663 i = object_lookup_once(path, leaf, dir);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	664 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	665
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	666 if (i > 0 && is_object(ip, OT_LINK)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	667 path = offset2addr(location2offset(ip->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	668 path += ffs_strlen(path) + 1; // point to data portion
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	669 i = object_lookup_once(path, leaf, dir);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	670
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	671 // Links may only point to regular files...
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	672 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	673 if (+i > 0 && !is_object(ip, OT_FILE))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	674 i = EFFS_NOTAFILE;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	675 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	676 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	677 leaf = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	678 dir = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	679 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	680 tw(tr(TR_END, TrLookup, "} (%d, '%s') %d\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	681 (dir ? dir : 0), (leaf ? leaf : ""), i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	682
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	683 ttw(ttr(TTrInode, "} %d" NL, i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	684 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	685 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	686
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	687 // Lookup an object. If object is found: Return iref of object and
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	688 // directory of object in <dir>. If object is not found: Return
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	689 // EFFS_NOTFOUND and last directory component of path in <dir> and leafname
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	690 // of pathname in <leaf>
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	691 iref_t object_lookup_once(const char path, char leaf, iref_t dir)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	692 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	693 iref_t i, j, d;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	694 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	695 const char p, q;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	696 uint8 depth = 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	697
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	698 tw(tr(TR_FUNC, TrLookup, "object_lookup_once('%s', ?, ?) { ", path));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	699
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	700 if (path == NULL)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	701 return EFFS_BADNAME;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	702
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	703 d = fs.root;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	704 if (*path == '/') {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	705 path++; // silently ignore and skip prefix slash
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	706 // root directory is a special case
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	707 if (*path == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	708 j = d;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	709 if (leaf) leaf = (char ) path;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	710 if (dir) *dir = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	711 tw(tr(TR_NULL, TrLookup, "} ('%s', %d) %d\n", path, 0, j));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	712 return j;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	713 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	714 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	715 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	716 return EFFS_BADNAME;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	717
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	718 // set default return value if root dir is completely empty
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	719 // (child link empty)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	720 j = EFFS_NOTFOUND;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	721
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	722 ip = inode_addr(d);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	723
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	724 while ((i = ip->child) != (iref_t) IREF_NULL)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	725 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	726 j = 0; // default to not found
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	727 do {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	728 tw(tr(TR_NULL, TrLookup, "i%d ", (int) i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	729
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	730 p = path;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	731 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	732 if (is_object_valid(ip) && !is_object(ip, OT_SEGMENT)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	733 q = addr2name(offset2addr(location2offset(ip->location)));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	734 tw(tr(TR_NULL, TrLookup, "%s ", q));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	735 while (p == q && p != 0 && q != 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	736 p++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	737 q++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	738 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	739 if (q == 0 && (p == 0 \|\| *p == '/')) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	740 j = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	741 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	742 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	743 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	744 } while ((i = ip->sibling) != (iref_t) IREF_NULL);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	745
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	746
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	747 if (j == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	748 // we did not find this component of the path. Let's
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	749 // see if this was the leafname component or not...
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	750 while (p != 0 && p != '/')
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	751 p++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	752
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	753 if (*p == 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	754 // The path component was indeed the leafname
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	755 j = EFFS_NOTFOUND;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	756 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	757 // The path component was not the last, so it
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	758 // obviously contained an object that was not a
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	759 // directory.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	760 j = EFFS_NOTADIR;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	761 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	762 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	763
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	764 if (*p == '/') {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	765 // if there are more path components, the object found
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	766 // must be a directory...
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	767 if (!is_object(ip, OT_DIR)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	768 j = EFFS_NOTADIR;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	769 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	770 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	771 if (++depth > fs.path_depth_max) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	772 j = EFFS_PATHTOODEEP;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	773 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	774 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	775 path = p + 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	776 d = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	777
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	778 // if this dir inode has no children, we will leave the
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	779 // while loop, so we preset the return error code. NOTEME:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	780 // Not strictly correct because if we still have a lot of
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	781 // the pathname left, it should return the error
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	782 // EFFS_NOTADIR
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	783 j = EFFS_NOTFOUND;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	784
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	785 tw(tr(TR_NULL, TrLookup, "/ "));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	786
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	787 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	788 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	789 // It is a fact that *p == 0. So we found the object!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	790 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	791 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	792 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	793
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	794 if (leaf) leaf = (char ) path;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	795 if (dir) *dir = d;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	796
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	797 tw(tr(TR_NULL, TrLookup, "} (%d, '%s') %d\n", d, path, j));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	798
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	799 return j;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	800 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	801
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	802 #endif
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	803
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	804
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	805 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	806 * Directory Operations
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	807 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	808
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	809 // Open a directory, returning the iref of the directory's inode.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	810 iref_t dir_open(const char *name)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	811 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	812 iref_t i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	813 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	814
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	815 tw(tr(TR_BEGIN, TrDirHigh, "dir_open('%s') {\n", name));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	816
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	817 if ((i = object_lookup(name, 0, 0)) < 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	818 tw(tr(TR_END, TrDirHigh, "} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	819 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	820 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	821
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	822 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	823 if (!is_object(ip, OT_DIR))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	824 i = EFFS_NOTADIR;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	825
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	826 tw(tr(TR_END, TrDirHigh, "} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	827
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	828 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	829 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	830
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	831 // Return name and iref of next entry in directory <dir>. <i> is the last
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	832 // entry we returned from this function. In case this is the first call
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	833 // after the initial call to dir_open(), <i> equals <dir>.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	834 iref_t dir_next(iref_t dir, iref_t i, char *name, int8 size)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	835 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	836 struct inode_s *ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	837 char *p;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	838
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	839 tw(tr(TR_BEGIN, TrDirHigh, "dir_next(%d, %d, ?, %d) {\n", dir, i, size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	840
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	841 i = (i == dir ? ip->child : ip->sibling);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	842
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	843 while (i != (iref_t) IREF_NULL) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	844 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	845 if (is_object_valid(ip)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	846 p = offset2addr(location2offset(ip->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	847 while (size-- && (name++ = p++))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	848 ;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	849 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	850 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	851 i = ip->sibling;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	852 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	853 if (i == (iref_t) IREF_NULL)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	854 i = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	855
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	856 tw(tr(TR_END, TrDirHigh, "} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	857
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	858 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	859 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	860
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	861 // Traverse a directory given by inode reference <i>. If <i> is negative, it
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	862 // refers to the actual directory so we start by traversing the child link.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	863 // Otherwise if <i> is positive, it refers to an entry within the directory
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	864 // and we only traverse sibling links. Returns iref of last object in
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	865 // directory (or negative iref of directory if the child link is empty).
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	866 // <entries> is number of non-deleted objects in the dir (only valid if
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	867 // traversed from the start, eg. with negative <i>).
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	868 iref_t dir_traverse(iref_t i, iref_t *entries)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	869 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	870 iref_t j = 0, valid = 0, erased = 0, invalid = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	871 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	872
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	873 tw(tr(TR_FUNC, TrDirLow, "dir_traverse(%d, ?) { ", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	874
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	875 if (i < 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	876 // If directory's child is empty, this is a virgin directory and we
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	877 // return negative iref of the directory itself.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	878 j = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	879 i = -i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	880 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	881 i = ip->child;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	882 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	883 if (i != (iref_t) IREF_NULL) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	884 do {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	885 if (j == i) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	886 tw(tr(TR_NULL, TrDirLow, "LOOP! "));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	887 return EFFS_SIBLINGLOOP;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	888 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	889
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	890 j = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	891 ip = inode_addr(j);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	892
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	893 tw(tr(TR_NULL, TrDirLow, "%d/%x ", j, ip->flags));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	894
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	895 if (is_object_valid(ip))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	896 valid++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	897 else if (is_object(ip, OT_ERASED))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	898 erased++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	899 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	900 invalid++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	901
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	902 } while ((i = ip->sibling) != (iref_t) IREF_NULL);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	903 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	904
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	905 if (entries != 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	906 *entries = valid;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	907
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	908 tw(tr(TR_NULL, TrDirLow, "} (valid = %d, erased = %d, invalid = %d) %d\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	909 valid, erased, invalid, j));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	910
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	911 return j;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	912 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	913
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	914
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	915 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	916 * Block, Inode and Data Allocation
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	917 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	918
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	919 // Find the youngest free block. Return block index on success. If the
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	920 // argument <priority> is zero, this is a normal alloc and it will leave at
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	921 // least fs.blocks_free_min spare blocks. Otherwise, if it is non-zero, it
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	922 // is a privileged alloc (initiated by a reclaim operation) and it will not
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	923 // necessarily leave any spare blocks.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	924 bref_t block_alloc(bref_t priority, uint16 flags)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	925 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	926 bref_t i, b, b_min, b_max, blocks_free;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	927 struct block_header_s *bhp;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	928 age_t age, age_min, age_max;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	929
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	930 tw(tr(TR_BEGIN, TrBlock, "block_alloc(%d, 0x%x) {\n", priority, flags));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	931 ttw(ttr(TTrData, "ba(%d,0x%x) {" NL, priority, flags));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	932
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	933 age_min = BLOCK_AGE_MAX;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	934 age_max = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	935 blocks_free = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	936 b_min = b_max = -1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	937
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	938 tw(tr(TR_FUNC, TrBlock, "blocks(age): "));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	939 for (i = dev.numblocks - 1; i >= 0; i--)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	940 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	941 if (is_block(i, BF_IS_FREE))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	942 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	943 blocks_free++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	944 bhp = (struct block_header_s *) offset2addr(dev.binfo[i].offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	945 age = bhp->age;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	946
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	947 tw(tr(TR_NULL, TrBlock, "%d(%d) ", i, age));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	948
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	949 // Remember index of block found. We use '<=' and '>=' operators
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	950 // (instead of '<' and '>') to ensure we have both limits
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	951 // properly set on exit from this loop.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	952 if (age <= age_min) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	953 b_min = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	954 age_min = age;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	955 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	956 if (age >= age_max) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	957 b_max = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	958 age_max = age;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	959 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	960 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	961 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	962 tw(tr(TR_NULL, TrBlock, "\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	963
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	964 // Handle age wrap around
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	965 b = b_min;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	966 if (b_min != -1) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	967 // Either age_max really is max age, so b_min is youngest block OR
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	968 // age_max really is min age, so b_max is youngest block
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	969 b = (age_max - age_min) < 0x8000 ? b_min : b_max;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	970 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	971
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	972 // Only privileged allocs will get the last free block
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	973 if (blocks_free <= fs.blocks_free_min - priority) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	974 b = -1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	975 tw(tr(TR_FUNC, TrBlock, "Only %d block(s) left, required = %d\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	976 blocks_free, fs.blocks_free_min - priority));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	977 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	978 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	979 // Prepare/format the block for holding data/inodes
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	980 if (flags == BF_DATA) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	981 bstat[b].used = BHEADER_SIZE;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	982 bstat[b].lost = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	983 bstat[b].objects = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	984 block_flags_write(b, BF_DATA);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	985 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	986 else if (flags == BF_COPYING) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	987 // This code is used on a fresh format and when allocating a new
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	988 // block for reclaiming inodes
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	989 block_flags_write(b, BF_COPYING);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	990 bstat[b].used = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	991 bstat[b].lost = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	992 bstat[b].objects = 1; // first inode to be allocated
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	993 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	994 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	995 tw(tr(TR_FUNC, TrBlock, "FATAL: Bad input (flags = 0x%X)\n", flags));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	996 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	997 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	998
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	999 tw(tr(TR_END, TrBlock, "} (%d) %d\n", blocks_free, b));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1000 ttw(ttr(TTrData, "} 0x%x" NL, b));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1001
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1002 return b;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1003 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1004
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1005 // Free and schedule a block for erase.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1006 void block_free(bref_t b)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1007 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1008 tw(tr(TR_BEGIN, TrBlock, "block_free(%d) {\n", b));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1009
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1010 // mark block as invalid and schedule erasure
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1011 block_flags_write(b, BF_LOST);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1012 block_reclaim(b);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1013
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1014 tw(tr(TR_END, TrBlock, "}\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1015 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1016
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1017 void block_flags_write(uint8 block, uint8 flags)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1018 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1019 struct block_header_s *bhp =
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1020 (struct block_header_s *) offset2addr(dev.binfo[block].offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1021
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1022 tw(tr(TR_BEGIN, TrBlock, "block_flags_write(%d, 0x%x)\n", block, flags));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1023
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1024 bstat[block].flags = BIT_SET(bstat[block].flags, flags);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1025 ffsdrv.write_halfword((uint16 *) &bhp->flags, bstat[block].flags );
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1026
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1027 tw(tr(TR_END, TrBlock, ""));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1028 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1029
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1030 // Allocate an inode for a new object. We use bstat[fs.inodes].objects to
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1031 // start our scan for a free inode instead of starting from the first time
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1032 // each time.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1033 iref_t inode_alloc(void)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1034 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1035 iref_t i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1036
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1037 tw(tr(TR_BEGIN, TrInode, "inode_alloc() {\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1038 ttw(ttr(TTrInode, "i_a() {" NL));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1039
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1040 if ((i = inode_alloc_try()) == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1041 // FIXME NO we are not always of inodes, maybe dos there exist to
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1042 // many objects! It will not help to reclaim the inodes in that case!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1043 tw(tr(TR_FUNC, TrInode, "NOTE: Out of free inodes...\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1044 inodes_reclaim();
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1045 i = inode_alloc_try();
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1046 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1047
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1048 tw(tr(TR_END, TrInode, "} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1049 ttw(ttr(TTrInode, "} %d" NL, i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1050
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1051 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1052 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1053
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1054 iref_t inode_alloc_try(void)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1055 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1056 iref_t i = fs.inodes_max;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1057 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1058
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1059 // If we have not yet reached the maximum allowed number of objects,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1060 // search for next free inode...
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1061 if (bstat[fs.inodes].used - bstat[fs.inodes].lost < fs.objects_max)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1062 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1063 ip = inode_addr(bstat[fs.inodes].objects);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1064 for (i = bstat[fs.inodes].objects;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1065 i < fs.inodes_max - FFS_INODES_MARGIN; i++, ip++) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1066 if (ip->location == FLASH_NULL32) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1067 bstat[fs.inodes].objects = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1068 bstat[fs.inodes].used++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1069 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1070 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1071 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1072 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1073 if (i >= fs.inodes_max - FFS_INODES_MARGIN)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1074 i = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1075
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1076 tw(tr(TR_FUNC, TrInode, "inode_alloc_try() %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1077 ttw(ttr(TTrInode, "i_a_t() %d" NL, i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1078
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1079 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1080 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1081
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1082 // NOTEME: Should file data be word aligned to enable faster reads and
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1083 // writes in word quantities AND to be more compatible with the inherent
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1084 // 16-bit access width of flash memories?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1085 offset_t data_alloc(int size)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1086 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1087 offset_t offset = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1088 bref_t b;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1089
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1090 tw(tr(TR_BEGIN, TrData, "data_alloc(%d) {\n", size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1091 ttw(ttr(TTrData, "da(%d) {" NL, size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1092
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1093 offset = data_prealloc(size);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1094
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1095 // If we did allocate the space, we update bstat[]
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1096 if (offset > 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1097 b = offset2block(offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1098 bstat[b].used += size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1099 stats.data_allocated += size; // STATS
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1100 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1101
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1102 tw(tr(TR_END, TrData, "} 0x%04x\n", offset));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1103 ttw(ttr(TTrData, "} %x" NL, offset));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1104
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1105 return offset;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1106 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1107
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1108 offset_t data_prealloc(int realsize)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1109 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1110 int result, i, bytes_free;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1111 offset_t offset;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1112
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1113 // Is it possible to get this amount of free space and still have enough
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1114 // reserved space?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1115 ffs_query(Q_BYTES_FREE_RAW, &bytes_free);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1116 if (realsize > (bytes_free + FFS_FILENAME_MAX + dev.atomsize))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1117 return 0; // Not enough unused space
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1118
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1119 for (i = 0; i < dev.numblocks; i++) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1120 if ((offset = data_alloc_try(realsize)) > 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1121 return offset; // Space found
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1122
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1123 if ((result = data_reclaim(realsize)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1124 return 0; // Data reclaim failed!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1125 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1126
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1127 return 0; // No space found
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1128 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1129
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1130 // Find free data space of size <size>. Return zero if no space available.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1131 // Note that we ensure that we always have space immediately available for a
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1132 // privileged data_alloc(), e.g. a data_alloc() that allocates data space
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1133 // without performing a data_reclaim(). This is important when
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1134 // re-creating/re-locating the journal file.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1135 offset_t data_alloc_try(int size)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1136 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1137 bref_t b;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1138 int free;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1139 offset_t offset_big = 0, offset_small = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1140 int size_big_ok = 0, size_small_ok = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1141 int size_big, size_small;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1142 int reserved;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1143
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1144 tw(tr(TR_FUNC, TrData, "data_alloc_try(%d) { ", size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1145 ttw(ttr(TTrData, "dat(%d) {" NL, size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1146
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1147 // NOTE when we alloc do we only need to have reserved space for X
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1148 // number of journal files, where X is the max number of used journals
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1149 // per data reclaim. The only exception is when an object_relocate has
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1150 // failed thus we set reserved_space to zero.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1151 reserved = RESERVED_LOW;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1152
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1153 if (fs.reserved_space < reserved)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1154 reserved = fs.reserved_space;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1155
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1156 // Set size_big to the grater of the sizes and size_small to the lesser.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1157 size_big = (size > reserved ? size : reserved);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1158 size_small = (size > reserved ? reserved : size);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1159 tw(tr(TR_NULL, TrData, "(size_big, small = %d, %d) ", size_big, size_small));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1160
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1161 // First search for free space in data blocks
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1162 tw(tr(TR_NULL, TrData, "block:free,objects: "));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1163
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1164 for (b = 0; b < dev.numblocks; b++) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1165 if (is_block(b, BF_IS_DATA)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1166 free = dev.blocksize - bstat[b].used;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1167 tw(tr(TR_NULL, TrData, "%d:%d,%d ", b, free, bstat[b].objects));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1168 if (bstat[b].objects < fs.block_files_max - fs.block_files_reserved) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1169 if (!size_big_ok && !size_small_ok &&
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1170 (free >= size_big + size_small)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1171 size_big_ok = size_small_ok = 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1172 offset_big = offset_small =
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1173 dev.binfo[b].offset + bstat[b].used;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1174 tw(tr(TR_NULL, TrData, "big/small_ok "));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1175 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1176 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1177 else if (!size_big_ok && free >= size_big) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1178 size_big_ok = 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1179 offset_big = dev.binfo[b].offset + bstat[b].used;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1180 tw(tr(TR_NULL, TrData, "big_ok "));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1181 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1182 else if (!size_small_ok && free >= size_small) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1183 size_small_ok = 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1184 offset_small = dev.binfo[b].offset + bstat[b].used;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1185 tw(tr(TR_NULL, TrData, "small_ok "));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1186 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1187 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1188 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1189 if (size_small_ok && size_big_ok)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1190 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1191 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1192
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1193 if (size_big_ok && size_small_ok)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1194 offset_big = (size > reserved ? offset_big : offset_small);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1195 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1196 offset_big = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1197
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1198 tw(tr(TR_NULL, TrData, "} 0x%x\n", offset_big));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1199 ttw(ttr(TTrData, "} %x " NL, offset_big));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1200
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1201 return offset_big;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1202 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1203
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1204 offset_t data_reserved_alloc(int size)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1205 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1206 bref_t b;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1207 offset_t offset = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1208 int free;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1209
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1210 tw(tr(TR_BEGIN, TrData, "data_reserved_alloc(%d) {\n", size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1211 ttw(ttr(TTrData, "dra(%d) {" NL, size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1212
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1213 tw(tr(TR_NULL, TrData, "block:free,objects: "));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1214 for (b = 0; b < dev.numblocks; b++) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1215 if (is_block(b, BF_IS_DATA)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1216 free = dev.blocksize - bstat[b].used;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1217 tw(tr(TR_NULL, TrData, "%d:%d,%d ", b, free, bstat[b].objects));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1218 if (free >= size) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1219 offset = dev.binfo[b].offset + bstat[b].used;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1220 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1221 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1222 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1223 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1224
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1225 // If we did allocate the space, we update bstat[]
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1226 if (offset != 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1227 b = offset2block(offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1228 bstat[b].used += size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1229 stats.data_allocated += size; // STATS
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1230 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1231
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1232 tw(tr(TR_END, TrData, "} 0x%04x\n", offset));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1233 ttw(ttr(TTrData, "} %x" NL, offset));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1234
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1235 return offset;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1236 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1237
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1238
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1239 iref_t chunk_alloc(int realsize, int is_journal, offset_t *offset)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1240 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1241 iref_t i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1242
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1243 if (realsize < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1244 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1245
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1246 // Have we reached objects_max? We make a similar test in
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1247 // inode_alloc_try(), however we need to do it here or else we risk to start
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1248 // a data_reclaim we not can finish.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1249 if (bstat[fs.inodes].used - bstat[fs.inodes].lost >= fs.objects_max) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1250 tw(tr(TR_END, TrObject, "} %d\n", EFFS_FSFULL));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1251 ttw(ttr(TTrObj, "} %d" NL, EFFS_FSFULL));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1252 return EFFS_FSFULL;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1253 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1254
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1255 // Allocate space for the object name (and object data)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1256 if (is_journal)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1257 *offset = data_reserved_alloc(realsize);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1258 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1259 *offset = data_alloc(realsize);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1260
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1261 if (*offset == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1262 tw(tr(TR_END, TrObject, "} %d\n", EFFS_NOSPACE));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1263 ttw(ttr(TTrObj, "} %d" NL, EFFS_NOSPACE));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1264 return EFFS_NOSPACE;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1265 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1266 fs.journal.location = offset2location(*offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1267
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1268 // Allocate an inode for the object
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1269 i = fs.journal.i = inode_alloc();
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1270 if (i == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1271 tw(tr(TR_END, TrObject, "} %d\n", EFFS_FSFULL));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1272 ttw(ttr(TTrObj, "} %d" NL, EFFS_FSFULL));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1273 return EFFS_FSFULL;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1274 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1275
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1276 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1277 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1278
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1279 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1280 * query and fcontrol
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1281 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1282
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1283 #if 0
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1284 extern uint16 ffs_flash_device;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1285 extern uint16 ffs_flash_manufact;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1286 #endif
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1287
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1288 effs_t object_control(iref_t i, int8 action, int value)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1289 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1290 effs_t error = EFFS_OK;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1291
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1292 tw(tr(TR_BEGIN, TrOther, "object_control(%d, %d, 0x%x) {\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1293 i, action, value));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1294 ttw(ttr(TTrApi, "obj_control(%d,%d,0x%x)" NL, i, action, value));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1295
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1296 switch (action) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1297 case OC_FLAGS:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1298 // Set/clear object flags. Attempting to modify the "/dev/ffs"
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1299 // object (i = 0) or any non-defined flags is an invalid operation.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1300 if (i <= 0 \|\| value & ~OF_ALL) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1301 error = EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1302 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1303 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1304 // there are two cases; either we only set bits in the flags.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1305 // This is simple, as we just have to update the flags byte. The
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1306 // other case is harder because we have to clear bits and for
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1307 // this we have to copy the old inode to a new inode, setting
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1308 // the flags appropriately. For now we always just allocate a
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1309 // new inode and set the flags according to the <value>
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1310 // argument.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1311 journal_begin(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1312 fs.journal.flags \|= OF_MASK; // reset all flags
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1313 fs.journal.flags = BIT_SET(fs.journal.flags, value);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1314 if ((fs.journal.i = inode_alloc()) == 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1315 error = EFFS_FSFULL;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1316 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1317 fs.journal.diri = dir_traverse(fs.journal.diri, 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1318 journal_end(0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1319 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1320 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1321 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1322
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1323 case OC_FS_FLAGS: fs.flags = value; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1324 #if 0
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1325 case OC_DEV_MANUFACT: ffs_flash_manufact = value; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1326 case OC_DEV_DEVICE: ffs_flash_device = value; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1327 #endif
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1328 case OC_FS_TESTFLAGS: fs.testflags = value; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1329 case OC_DEBUG_0:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1330 case OC_DEBUG_1:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1331 case OC_DEBUG_2:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1332 case OC_DEBUG_3: fs.debug[action - OC_DEBUG_FIRST] = value; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1333 case OC_TRACE_INIT:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1334 #if (TARGET == 1)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1335 ttr_init(value);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1336 #endif
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1337 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1338 default:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1339 error = EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1340 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1341
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1342 tw(tr(TR_END, TrOther, "} %d\n", error));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1343
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1344 return error;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1345 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1346
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1347 extern int tmffs_bufsize(void); // used by ffs_query()
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1348 extern unsigned char *tmffs_bufaddr(void); // used by ffs_query()
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1349
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1350 #if (TARGET == 1)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1351 // request_id_last is only used in TARGET not to any use on the PC side
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1352 extern req_id_t request_id_last; // from task.c
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1353 #else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1354 req_id_t request_id_last;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1355 #endif
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1356
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1357 // If tmffs not is represented we define a dummy tm version
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1358 #ifndef FFS_TM_VERSION
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1359 #define FFS_TM_VERSION ((uint16) 0x0BAD)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1360 #endif
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1361
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1362 effs_t ffs_query(int8 query, void *p)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1363 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1364 tw(tr(TR_FUNC, TrOther, "query(%d) (?)\n", query));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1365
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1366 if (p == NULL)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1367 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1368
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1369 switch (query)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1370 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1371 case Q_BYTES_FREE:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1372 case Q_BYTES_USED:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1373 case Q_BYTES_LOST:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1374 case Q_BYTES_MAX:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1375 case Q_OBJECTS_TOTAL:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1376 case Q_BLOCKS_FREE:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1377 case Q_BYTES_FREE_RAW:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1378 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1379 bref_t b;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1380 bref_t blocks_free = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1381 iref_t objects = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1382 offset_t max, used = 0, lost = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1383 struct block_stat_s *bp;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1384
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1385 // Don't count free blocks, inode block, block header and reserved space.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1386 max = (dev.numblocks - fs.blocks_free_min - 1) *
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1387 (dev.blocksize - BHEADER_SIZE) - fs.reserved_space;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1388
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1389 // Furthermore don't count the ovewrhead from each chunk (alignment)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1390 // NOTE: If we call query while FFS not is formatted there is a risk
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1391 // of deviding with zero!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1392 if (fs.chunk_size_max > 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1393 max -= ((max / fs.chunk_size_max + 1) * dev.atomsize);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1394
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1395 for (b = 0, bp = &bstat[0]; b < dev.numblocks; b++, bp++) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1396 if (is_block(b, BF_IS_FREE))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1397 blocks_free++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1398 if (is_block(b, BF_IS_DATA)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1399 objects += bp->objects;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1400 used += bp->used;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1401 lost += bp->lost;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1402 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1403 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1404
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1405 switch (query) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1406 case Q_BYTES_FREE: (uint32)p = max - (used - lost) - FFS_FILENAME_MAX;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1407 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1408 case Q_BYTES_FREE_RAW:(uint32)p = max - (used - lost); break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1409 case Q_BYTES_USED: (uint32)p = used; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1410 case Q_BYTES_LOST: (uint32)p = lost; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1411 case Q_BYTES_MAX: (uint32)p = max; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1412 case Q_OBJECTS_TOTAL: (uint16)p = objects; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1413 case Q_BLOCKS_FREE: (uint16)p = blocks_free; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1414 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1415 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1416 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1417
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1418 case Q_TM_BUFADDR: (uint32)p = (uint32) tmffs_bufaddr(); break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1419 case Q_TM_BUFSIZE: (uint32)p = tmffs_bufsize(); break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1420 case Q_DEV_BASE: (uint32)p = (uint32) dev.base; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1421
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1422 // FFS versions
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1423 case Q_FFS_API_VERSION: (uint16)p = FFS_API_VERSION; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1424 case Q_FFS_DRV_VERSION: (uint16)p = FFS_DRV_VERSION; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1425 case Q_FFS_REVISION: (uint16)p = ffs_revision; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1426 case Q_FFS_FORMAT_WRITE: (uint16)p = FFS_FORMAT_VERSION; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1427 case Q_FFS_FORMAT_READ: (uint16)p = fs.format; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1428 case Q_FFS_LASTERROR: (int16)p = fs.initerror; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1429 case Q_FFS_TM_VERSION: (int16)p = FFS_TM_VERSION; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1430
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1431 // File system queries
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1432 case Q_FILENAME_MAX: (uint16)p = fs.filename_max; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1433 case Q_PATH_DEPTH_MAX: (uint16)p = fs.path_depth_max; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1434
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1435 case Q_OBJECTS_FREE: (uint16)p = fs.objects_max -
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1436 (bstat[fs.inodes].used -
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1437 bstat[fs.inodes].lost); break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1438 case Q_INODES_USED: (uint16)p = bstat[fs.inodes].used; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1439 case Q_INODES_LOST: (uint16)p = bstat[fs.inodes].lost; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1440 case Q_OBJECTS_MAX: (uint16)p = fs.objects_max; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1441
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1442 case Q_INODES_MAX: (uint16)p = fs.inodes_max; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1443 case Q_CHUNK_SIZE_MAX: (uint16)p = fs.chunk_size_max; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1444
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1445 // File descriptor queris
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1446 case Q_FD_BUF_SIZE: (uint32)p = fs.fd_buf_size; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1447 case Q_FD_MAX: (uint16)p = fs.fd_max; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1448
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1449 // device queries
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1450 case Q_DEV_MANUFACTURER: (uint16)p = dev.manufact; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1451 case Q_DEV_DEVICE: (uint16)p = dev.device; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1452 case Q_DEV_BLOCKS: (uint16)p = dev.numblocks; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1453 case Q_DEV_ATOMSIZE: (uint16)p = dev.atomsize; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1454 case Q_DEV_DRIVER: (uint16)p = dev.driver; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1455
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1456 // Miscellaneous/Internal
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1457 case Q_BLOCKS_FREE_MIN: (uint16)p = fs.blocks_free_min; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1458 case Q_LOST_HIGH: (uint16)p = fs.lost_threshold; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1459
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1460 // Debug queries
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1461 case Q_FS_FLAGS: (uint16)p = fs.flags; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1462 case Q_FS_INODES: (uint16)p = fs.inodes; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1463 case Q_FS_ROOT: (uint16)p = fs.root; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1464
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1465 case Q_STATS_DRECLAIMS: (uint32)p = stats.drec.most_lost +
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1466 stats.drec.most_unused +
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1467 stats.drec.youngest; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1468 case Q_STATS_IRECLAIMS: (uint32)p = stats.irec.num; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1469 case Q_STATS_DATA_RECLAIMED: (uint32)p = stats.drec.valid[0] +
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1470 stats.drec.lost[0]; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1471 case Q_STATS_INODES_RECLAIMED: (uint32)p = stats.irec.valid + stats.irec.lost;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1472 break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1473 case Q_STATS_DATA_ALLOCATED: (uint32)p = stats.data_allocated; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1474 case Q_REQUEST_ID_LAST: (uint32)p = request_id_last; break;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1475
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1476 default:
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1477 if (query >= Q_BSTAT && (query - Q_BSTAT) < dev.numblocks)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1478 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1479 struct block_header_s *bhp;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1480 uint32 *myp = p;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1481
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1482 query -= Q_BSTAT;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1483 bhp = (struct block_header_s *) offset2addr(dev.binfo[query].offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1484
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1485 *myp++ = bstat[query].used;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1486 *myp++ = bstat[query].lost;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1487 // If we are in READ mode or this block is not lost, we can
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1488 // safely read the age. Otherwise it is maybe currently erasing
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1489 // and thus we cannot read the age.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1490 // NOTEME: Should this not have been handled by a driver function?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1491 if (dev.state == DEV_READ \|\| !is_block_flag(query, BF_LOST))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1492 *myp++ = (bhp->age << 16) \| bstat[query].flags;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1493 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1494 *myp++ = ( 0xFFFE << 16) \| bstat[query].flags;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1495 *myp++ = bstat[query].objects;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1496 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1497 else if (query >= Q_DEBUG_FIRST && query < Q_DEBUG_LAST) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1498 (uint32)p = fs.debug[query - Q_DEBUG_FIRST];
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1499 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1500 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1501 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1502 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1503
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1504 return EFFS_OK;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1505 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1506
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1507
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1508 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1509 * Miscellaneous Helper Functions
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1510 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1511
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1512 // Check if an object is read-only. Note that the root inode is always
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1513 // readonly, no matter what! Returns error or original <i>.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1514 iref_t is_readonly(iref_t i, const char *path)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1515 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1516 struct inode_s *ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1517
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1518 tw(tr(TR_FUNC, TrObject, "is_readonly(%d, '%s') ", i, path));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1519
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1520 if (i == fs.root \|\| i == fs.ijournal \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1521 (IS_BIT_SET(ip->flags, OF_READONLY) && !ffs_is_modifiable(path)))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1522 i = EFFS_ACCESS;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1523
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1524 tw(tr(TR_NULL, TrObject, "(0x%X) %d\n", ip->flags, i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1525
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1526 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1527 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1528
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1529
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1530 // Check if filename is valid. Return EFFS_BADNAME if name contains
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1531 // invalid chars. Return RFFS_NAMETOOLONG if name is too
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1532 // long. Otherwise return filename length.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1533 effs_t is_filename(const char *s)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1534 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1535 char p = (char ) s;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1536 int n = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1537
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1538 while ( (s >= 'a' && s <= 'z') \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1539 (s >= 'A' && s <= 'Z') \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1540 (s >= '0' && s <= '9') \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1541 *s == '.' \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1542 *s == ',' \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1543 *s == '_' \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1544 *s == '-' \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1545 *s == '+' \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1546 *s == '%' \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1547 *s == '$' \|\|
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1548 *s == '#' )
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1549 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1550 s++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1551 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1552
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1553 if (*s != 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1554 n = EFFS_BADNAME; // invalid file name character found
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1555 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1556 n = s - p;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1557 if (n > fs.filename_max)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1558 n = EFFS_NAMETOOLONG;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1559 if (n == 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1560 n = EFFS_BADNAME;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1561 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1562
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1563 tw(tr(TR_FUNC, TrUtil, "is_filename('%s') %d\n", p, n));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1564
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1565 return n;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1566 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1567
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1568 int ffs_strlen(const char *s)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1569 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1570 const char *p = s;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1571
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1572 while (*p++)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1573 ;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1574
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1575 tw(tr(TR_FUNC, TrUtil, "strlen('%s') %d\n", s, p-s-1));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1576
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1577 return p-s-1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1578 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1579
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1580 // Return zero if strings are equal, otherwise return non-zero.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1581 int ffs_strcmp(const char s, const char p)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1582 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1583 int8 n = 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1584
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1585 tw(tr(TR_FUNC, TrUtil, "strcmp('%s', '%s') ", s, p));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1586
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1587 while (s == p && *p != 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1588 s++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1589 p++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1590 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1591 if (s == p)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1592 n = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1593
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1594 tw(tr(TR_NULL, TrUtil, "(%d)\n", n));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1595
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1596 return n;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1597 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1598
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1599 // Note: rename function? like get_fdi..
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1600 fd_t get_fdi(iref_t i)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1601 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1602 int j;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1603
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1604 tw(tr(TR_FUNC, TrUtil, "get_fdi(%d)\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1605
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1606 if (i > 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1607 for (j = 0; j < fs.fd_max; j++) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1608 if (i == fs.fd[j].seghead) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1609 return j; // Return fdi without offset
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1610 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1611 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1612 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1613 return -1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1614 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1615
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1616
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1617 effs_t is_fd_valid(fd_t fdi)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1618 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1619 if (fdi >= fs.fd_max \|\| fdi < 0 \|\| fs.fd[fdi].options == 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1620 return 0; // Not valid!
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1621 return 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1622 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1623
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1624 effs_t is_offset_in_buf(int offset, fd_t fdi)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1625 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1626 if (fs.fd[fdi].dirty == 1)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1627 if (offset >= fs.fd[fdi].wfp &&
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1628 offset < fs.fd[fdi].wfp + fs.chunk_size_max)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1629 return 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1630 return 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1631 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1632
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1633 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1634 * Chunk Operations
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1635 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1636
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1637 iref_t segment_create(const char *buf, int size, iref_t dir)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1638 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1639 iref_t i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1640 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1641 int realsize;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1642 offset_t offset;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1643 char *dataaddr;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1644
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1645 ttw(ttr(TTrObj, "segc(%d, %d){" NL, size, dir));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1646 tw(tr(TR_BEGIN, TrObject, "segment_create( ?, %d, %d) {\n", size, dir));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1647
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1648 fs.journal.size = realsize = atomalign(size + 1);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1649
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1650 // Init journal.diri before chunk_alloc() because it might trigger a
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1651 // data_reclaim() which can relocate the dir inode
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1652 fs.journal.diri = dir;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1653
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1654 if ((i = chunk_alloc(realsize, 0, &offset)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1655 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1656
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1657 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1658 dataaddr = offset2addr(offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1659
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1660 // Write data and null terminator. We null-terminate the data block,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1661 // such that blocks_fsck() can determine the amount of used data block
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1662 // space correctly.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1663 ffsdrv.write(dataaddr, buf, size);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1664 dataaddr += size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1665 ffsdrv_write_byte(dataaddr, 0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1666
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1667 // Segments is linked together by the child link(create) or by the
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1668 // sibling link(update or relocate). A negativ dir indicate that it is a
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1669 // update or relocate and the sign must be reversed so the journal
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1670 // system will use the sibling link to link the inode together.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1671 if (dir > 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1672 fs.journal.diri = chunk_traverse(fs.journal.diri);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1673
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1674 fs.journal.diri = -fs.journal.diri;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1675
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1676 tw(tr(TR_END, TrObject, "} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1677 ttw(ttr(TTrObj, "} %d" NL,i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1678
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1679 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1680 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1681
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1682
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1683 int segment_read(iref_t i, char *buf, int size, int offset)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1684 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1685 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1686 char *p;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1687 int chunk_size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1688
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1689 tw(tr(TR_BEGIN, TrObject, "segment_read(%d, 0x%x, %d, %d) {\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1690 i, buf, offset, size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1691
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1692 if (buf == NULL) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1693 tw(tr(TR_END, TrObject, "} %d\n", EFFS_INVALID));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1694 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1695 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1696
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1697 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1698
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1699 chunk_size = segment_datasize(ip);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1700
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1701 // Saturate read buffer
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1702 if (size > chunk_size - offset)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1703 size = chunk_size - offset;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1704
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1705 p = offset2addr(location2offset(ip->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1706 p = addr2data(p, ip);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1707
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1708 memcpy(buf, &p[offset], size);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1709
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1710 tw(tr(TR_END, TrObject, "} %d\n", size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1711 return size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1712 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1713
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1714 // Find next valid chunk
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1715 iref_t segment_next(iref_t i)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1716 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1717 struct inode_s *ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1718
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1719 tw(tr(TR_BEGIN, TrDirHigh, "ffs_segment_next(%d) {\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1720
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1721 // Dir is not allowed to contain data
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1722 if (is_object(ip, OT_DIR)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1723 tw(tr(TR_END, TrDirHigh, "} 0\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1724 return 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1725 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1726
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1727 // Is this the last/only segment
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1728 if ((i = ip->child) == (iref_t) IREF_NULL) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1729 tw(tr(TR_END, TrDirHigh, "} 0\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1730 return 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1731 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1732
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1733 // Get child (is valid?), search though segment by sibling link(is
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1734 // valid?), and again..
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1735 do {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1736 i = ip->child;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1737 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1738 if (is_object_valid(ip)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1739 tw(tr(TR_END, TrDirHigh,"} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1740 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1741 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1742
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1743 while (ip->sibling != (iref_t) IREF_NULL) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1744 i = ip->sibling;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1745 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1746 if (is_object_valid(ip)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1747 tw(tr(TR_END, TrDirHigh,"} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1748 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1749 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1750 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1751 } while (ip->child != (iref_t) IREF_NULL);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1752
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1753 // No segment found
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1754 tw(tr(TR_END, TrDirHigh,"} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1755 return 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1756 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1757
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1758 // The output "inode" will be the inode that contains the requested data or
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1759 // the last inode in the segmentfile. The segmenthead will be skiped if it
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1760 // don't contains any data. inode_offset is the offset in the found inode
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1761 // pointed to by target_offset. If target_offset point past the last segment
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1762 // will inode_offset be the size of the last inode. The return value will be
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1763 // the same as target_offset but maximum the total size of the object.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1764 int segfile_seek(iref_t seghead, int target_offset,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1765 iref_t inode, int inode_offset)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1766 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1767 int priv_count = 0, count_size = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1768 iref_t i = seghead;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1769 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1770
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1771 tw(tr(TR_BEGIN, TrObject, "segfile_seek(%d, %d, ?, ?) {\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1772 seghead, target_offset));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1773
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1774 if (!is_object_valid(inode_addr(seghead))) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1775 tw(tr(TR_END, TrAll, "FATAL: Invalid seghead!\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1776 return 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1777 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1778 *inode = seghead;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1779
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1780 while (1)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1781 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1782 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1783 count_size += segment_datasize(ip);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1784
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1785 // Seghead will be skiped if it don't contain any data
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1786 if (count_size > target_offset && count_size != 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1787
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1788 if (inode_offset != 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1789 *inode_offset = target_offset - priv_count;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1790
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1791 tw(tr(TR_END, TrObject, "} %d\n", target_offset));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1792 return target_offset;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1793 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1794
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1795 if ((i = segment_next(i)) == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1796 tw(tr(TR_END, TrObject, "} (eof!?) %d\n", count_size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1797 if (inode_offset != 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1798 *inode_offset = count_size - priv_count;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1799 // *inode = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1800 return count_size; // No more segments
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1801 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1802 priv_count = count_size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1803
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1804 *inode = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1805 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1806 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1807
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1808 // Calculate exact size of file data; without filename and null terminator
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1809 // and without data null terminator and succeeding alignment padding.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1810 // NOTEME: Does this also work for empty files and directories?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1811 int segment_datasize(const struct inode_s *ip)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1812 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1813 char p, q;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1814 int size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1815
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1816 p = offset2addr(location2offset(ip->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1817 q = p + ip->size - 1;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1818
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1819 // Segments is not allowed to contain any name
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1820 if (!is_object(ip, OT_SEGMENT)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1821 // skip filename at start of data
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1822 while (*p)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1823 p++;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1824 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1825 else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1826 // If it contained a name would p pointe to the null terminator of
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1827 // the name but because chunks don't have a name decrement we p to get
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1828 // the size correct
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1829 p--;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1830
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1831 // skip padding at end of data
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1832 while (*q)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1833 q--;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1834
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1835 // If there are data, there is also a null-terminator. Otherwise
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1836 // there is no null-terminator
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1837 size = q - p;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1838 if (size > 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1839 size--;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1840
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1841 tw(tr(TR_FUNC, TrObject, "segment_datasize(0x%x) %d\n", ip, size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1842 return size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1843 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1844
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1845
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1846 int object_truncate(const char *pathname, fd_t fdi, offset_t length)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1847 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1848 int segment_offset, flength, realsize, offset;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1849 iref_t i, dir, next_i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1850 char name = 0, olddata;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1851 struct inode_s *oldip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1852 effs_t error;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1853
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1854 tw(tr(TR_FUNC, TrObject, "ffs_object_truncate('%s', %d, %d) \n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1855 pathname, fdi, length));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1856 if (length < 0) return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1857
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1858 if (pathname == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1859 // File descriptor must be open and it have to be in write mode
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1860 if (!is_fd_valid(fdi))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1861 return EFFS_BADFD;;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1862
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1863 if (!is_open_option(fs.fd[fdi].options, FFS_O_WRONLY))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1864 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1865
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1866 // It is not possible to truncate an open file to a size less than
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1867 // the current file pointer
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1868 if (length < fs.fd[fdi].fp)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1869 return EFFS_INVALID;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1870
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1871 i = fs.fd[fdi].seghead;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1872 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1873 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1874 // File must exists and not be open
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1875 if ((i = object_lookup(pathname, &name, &dir)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1876 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1877
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1878 if (get_fdi(i) >= 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1879 return EFFS_LOCKED;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1880
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1881 oldip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1882 // Even though the ffs architecture allows to have data in directory
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1883 // objects, we don't want to complicate matters, so we return an error
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1884 if (is_object(oldip, OT_DIR) && !(fs.flags & FS_DIR_DATA))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1885 return EFFS_NOTAFILE;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1886
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1887 if ((i = is_readonly(i, pathname)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1888 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1889 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1890 // Find the segment which length points in to
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1891 flength = segfile_seek(i, length, &i, &segment_offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1892
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1893 if (pathname == 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1894 if (is_offset_in_buf(length, fdi) == 1) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1895 fs.fd[fdi].size = (length > fs.fd[fdi].size ?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1896 fs.fd[fdi].size : length); // Truncate the buffer
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1897
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1898 if (i == fs.fd[fdi].wch) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1899 next_i = segment_next(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1900 if (next_i > 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1901 if ((error = object_remove(next_i)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1902 return error;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1903 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1904 return EFFS_OK;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1905 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1906 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1907
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1908 if (flength < length)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1909 return EFFS_OK;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1910
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1911 journal_begin(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1912
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1913 // Realsize do not always need to include a name but we simplify it.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1914 realsize = atomalign(segment_offset + 1 + fs.filename_max + 1);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1915
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1916 // Make sure that there is enough space to make the rename without
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1917 // object_create() trigger a data_reclaim() (awoid relocate oldi/data
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1918 // source)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1919 if ((offset = data_prealloc(realsize)) <= 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1920 return EFFS_NOSPACE;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1921
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1922 // Find the next segment if any.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1923 next_i = segment_next(fs.journal.oldi);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1924
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1925 // Find old data source
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1926 oldip = inode_addr(fs.journal.oldi);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1927 olddata = offset2addr(location2offset(oldip->location));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1928 name = addr2name(olddata); // reinit name (maybe relocated)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1929 olddata = addr2data(olddata, oldip);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1930
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1931 if (is_object(oldip, OT_SEGMENT)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1932 if (segment_offset == 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1933 next_i = fs.journal.oldi; // Remove the found object
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1934 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1935 if ((i = segment_create(olddata, segment_offset,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1936 -fs.journal.oldi)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1937 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1938
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1939 fs.link_child = 0; //Do not link child
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1940 journal_end(0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1941 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1942 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1943 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1944 if ((i = object_create(name, olddata, length, fs.journal.oldi)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1945 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1946 fs.link_child = 0; //Do not link child
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1947 journal_end(0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1948
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1949 if (is_fd_valid(fdi))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1950 fs.fd[fdi].seghead = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1951 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1952
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1953 if (is_fd_valid(fdi))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1954 fs.fd[fdi].size = length;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1955
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1956 // If any remaning segment exists then remove them
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1957 if (next_i > 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1958 if ((error = object_remove(next_i)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1959 return error;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1960
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1961 return EFFS_OK;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1962 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1963
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1964
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1965 // Find the last segment valid or not valid
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1966 iref_t chunk_traverse(iref_t i)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1967 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1968 struct inode_s *ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1969
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1970 tw(tr(TR_BEGIN, TrDirHigh, "ffs_chunk_traverse(%d) {\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1971 // Is this the last/only segment?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1972 if (ip->child == (iref_t) IREF_NULL) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1973 tw(tr(TR_END, TrDirHigh, "} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1974 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1975 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1976
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1977 // Get child, find the last segment by sibling link, and again..
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1978 do {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1979 i = ip->child;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1980 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1981
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1982 while (ip->sibling != (iref_t) IREF_NULL) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1983 i = ip->sibling;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1984 ip = inode_addr(i);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1985 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1986 } while (ip->child != (iref_t) IREF_NULL);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1987
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1988 tw(tr(TR_END, TrDirHigh, "} %d\n", i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1989
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1990 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1991 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1992
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1993 // fdi include offset now but change this so core use pure fdi.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1994 effs_t datasync(fd_t fdi)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1995 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1996 int chunk_size;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1997 iref_t i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1998 struct inode_s *ip;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1999 char *name;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2000
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2001 tw(tr(TR_FUNC, TrObject, "datasync(%d) \n", fdi));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2002 ttw(ttr(TTrApi, "datasync(%d) {" NL, fdi));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2003
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2004 // NOTEME: is this necessary?
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2005 if (!is_fd_valid(fdi))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2006 return EFFS_BADFD;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2007
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2008 if (fs.fd[fdi].dirty == 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2009 return EFFS_OK;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2010
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2011 // If size - wfp is more than max is the complete buffer valid or else
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2012 // is it only a part of it that consist valid data
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2013 chunk_size = fs.fd[fdi].size - fs.fd[fdi].wfp;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2014 if (chunk_size > fs.chunk_size_max)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2015 chunk_size = fs.chunk_size_max;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2016
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2017 ip = inode_addr(fs.fd[fdi].wch);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2018
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2019 // Create new chunk or update a old one
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2020 if (fs.fd[fdi].wch > 0) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2021 // Update existing chunk
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2022 // Negativ dir input because it is a update (do not traverse)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2023 if (is_object(ip, OT_SEGMENT)) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2024 journal_begin(fs.fd[fdi].wch);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2025
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2026 if ((i = segment_create(fs.fd[fdi].buf, chunk_size,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2027 -fs.fd[fdi].wch)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2028 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2029 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2030
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2031 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2032 // Seghead update (like a normal file)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2033 ip = inode_addr(fs.fd[fdi].seghead);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2034 name = addr2name(offset2addr(location2offset(ip->location)));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2035 journal_begin(fs.fd[fdi].seghead);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2036
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2037 if ((i = object_create(name, fs.fd[fdi].buf, chunk_size,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2038 fs.fd[fdi].seghead)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2039 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2040
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2041 fs.fd[fdi].seghead = i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2042 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2043 journal_end(0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2044 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2045
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2046 else {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2047 // Create new chunk at the end of the existing ones.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2048 // BTW: A seghead will always have been made before this one.
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2049 journal_begin(0);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2050
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2051 if ((i = segment_create(fs.fd[fdi].buf, chunk_size,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2052 fs.fd[fdi].seghead)) < 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2053 return i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2054
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2055 journal_end(OT_SEGMENT);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2056 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2057 fs.fd[fdi].dirty = fs.fd[fdi].wch = 0;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2058
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2059 ttw(ttr(TTrApi, "} 0" NL));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2060 return EFFS_OK;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2061 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2062
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2063 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2064 * Development and Tracing
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2065 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2066
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2067 #if (TARGET == 0)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2068
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2069 void tr_bstat(void)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2070 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2071 int i, n;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2072 struct block_header_s *bhp;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2073 struct block_stat_s *bsp;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2074
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2075 tw(tr(TR_BEGIN, TrBstat, "bstat = {\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2076
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2077 bsp = &bstat[0];
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2078 tw(tr(TR_FUNC, TrBstat,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2079 " bf used lost free n age state\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2080 for (i = 0, n = 0; i < dev.numblocks; i++, bsp++) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2081 bhp = (struct block_header_s *) offset2addr(dev.binfo[i].offset);
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2082 tw(tr(TR_FUNC, TrBstat, "%2d %02x %6d %6d %6d %3d %5d %s%s%s%s%s%s\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2083 i, bsp->flags & 0xFF,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2084 bsp->used, bsp->lost,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2085 dev.blocksize - bsp->used,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2086 bsp->objects,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2087 bhp->age,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2088 (is_block(i, BF_IS_FREE) ? "FREE " : ""),
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2089 (is_block(i, BF_IS_DATA) ? "DATA " : ""),
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2090 (is_block(i, BF_IS_CLEANING) ? "CLEANING " : ""),
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2091 (is_block(i, BF_IS_COPYING) ? "COPYING " : ""),
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2092 (is_block(i, BF_IS_INODES) ? "INODES " : ""),
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2093 (is_block_flag(i, BF_LOST) ? "lost " : "")
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2094 ));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2095 if (is_block(i, BF_IS_DATA))
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2096 n += bsp->objects;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2097 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2098 i = bstat[fs.inodes].used - bstat[fs.inodes].lost;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2099 tw(tr(TR_FUNC, TrBstat,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2100 " %3d (used-lost = %d)\n",
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2101 n, i));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2102
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2103 if (n != i) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2104 tw(tr(TR_FUNC, TrAll, "WARNING: sum(bstat[x].objects) != bstat[fs.inodes].used - bstat[fs.inodes].lost\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2105 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2106
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2107 tw(tr(TR_END, TrBstat, "}\n"));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2108 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2109
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2110 #else // (TARGET == 1)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2111
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2112 void tr_bstat(void)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2113 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2114 int i;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2115 struct block_stat_s *bsp = &bstat[0];
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2116
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2117 for (i = 0; i < dev.numblocks; i++, bsp++) {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2118 ttw(ttr(TTrBstat, "%2d (%2x) u/l/f/n %6d %6d %6d %2d" NL,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2119 i, bsp->flags,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2120 bsp->used, bsp->lost,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2121 dev.blocksize - bsp->used,
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2122 bsp->objects
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2123 ));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2124 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2125 ttw(str(TTrBstat,"" NL));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2126 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2127
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2128
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2129 void tr_fd(fd_t fdi)
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2130 {
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2131 tw(tr(TR_BEGIN, TrHelper, "tr_fd(%d) {\n", fdi));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2132 tw(tr(TR_FUNC, TrHelper, "options: 0x%x \n", fd[fdi].options));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2133 tw(tr(TR_FUNC, TrHelper, "inode : %d \n", fd[fdi].inode_first));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2134 tw(tr(TR_FUNC, TrHelper, "fp : %d \n", fd[fdi].fp));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2135 tw(tr(TR_FUNC, TrHelper, "size : %d \n", fd[fdi].size));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2136 tw(tr(TR_FUNC, TrHelper, "dir : %d \n", fd[fdi].dir));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2137 tw(tr(TR_FUNC, TrHelper, "name : %s \n", fd[fdi].name));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2138 tw(tr(TR_END, TrHelper, "}\n", fdi));
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2139 }
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2140
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2141 #endif // (TARGET == 0)

FreeCalypso > hg > freecalypso-sw

annotate gsm-fw/services/ffs/core.c @ 642:b039cafc8e31