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

author	Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date	Thu, 26 Dec 2013 07:23:38 +0000
parents
children	2beb88a3d528

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

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847e2585a0f2 gsm-fw/services/ffs: core.c integrated