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

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top README: repository change notice

author	Mychaela Falconia <falcon@freecalypso.org>
date	Sun, 12 Jun 2016 19:06:34 +0000
parents	847e2585a0f2
children

rev	line source
209 6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	1 /******************************************************************************
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	2 * Flash File System (ffs)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	3 * Idea, design and coding by Mads Meisner-Jensen, mmj@ti.com
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	4 *
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	5 * ffs core functions
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	6 *
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	7 * $Id: core.h 1.80.1.15.1.36 Thu, 08 Jan 2004 15:05:23 +0100 tsj $
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	8 *
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	9 ******************************************************************************/
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	10
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	11 #if (TARGET == 1)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	12 #include "../../riviera/rv/rv_defined_swe.h"
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	13 #endif
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	14
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	15 /******************************************************************************
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	16 * Compile option switches
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	17 ******************************************************************************/
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	18
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	19 // FFS compiled with extra test functionality
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	20 #define FFS_TEST 1
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	21
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	22 // Default max number of simultaneous open files
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	23 #ifdef RVM_MSFE_SWE
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	24 #define FFS_FD_MAX 20
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	25 #else
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	26 #define FFS_FD_MAX 4
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	27 #endif
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	28
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	29 #define FFS_RECLAIM_NEW 1
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	30
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	31 /******************************************************************************
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	32 * Compile constants
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	33 ******************************************************************************/
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	34
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	35 // FFS API version (in four-digit BCD format)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	36 #define FFS_API_VERSION ((uint16) 0x0642)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	37
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	38 // FFS_DRV_VERSION is in drv.h
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	39
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	40 // TMFFS protocol version is in tmffs.h
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	41
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	42 // Magic for determining (formatted) file system version. First two digits
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	43 // represent major version, bottom two digits represent minor version. An
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	44 // ffs code compiled for one major version X is compatible with any other
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	45 // format version with major = X. Minor version is incremented when adding
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	46 // new features that does not break compatibility.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	47 #define FFS_FORMAT_VERSION (0x0210)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	48 #define BLOCK_MAGIC_LOW ('f'<<8\|'F') // "Ffs#"
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	49 #define BLOCK_MAGIC_HIGH ('#'<<8\|'s')
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	50 #define BLOCK_MAGIC ((BLOCK_MAGIC_HIGH << 8)\|(BLOCK_MAGIC_LOW))
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	51
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	52 // Absolute maximum number of inodes allowed
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	53 #define FFS_INODES_MAX 2048
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	54
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	55 // Default maximum number of inodes allowed
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	56 #define FFS_INODES_MAX_DEFAULT 1024
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	57
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	58 // Default number of path components (limit due to recursiveness of
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	59 // inodes_reclaim())
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	60 #define FFS_PATH_DEPTH_MAX 6
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	61
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	62 // Maximum number of blocks (flash sectors) in a ffs system. FFS_BLOCKS_MAX
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	63 // must be >= the number of blocks in the largest flash device memory
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	64 // map. It is used to allocate the number of entries in the static bstat
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	65 // array.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	66 #define FFS_BLOCKS_MAX 128
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	67 // Default size of journal file (represented as 256'ths of the blocksize)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	68 #define FFS_JOURNAL_SIZE_IN256THS 16 // one 16'ths of the block size.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	69
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	70 // Without the min size will the maximum of files (fs.blocks_files_max) in
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	71 // one block be 32 files if the blocksize is 8kB!
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	72 #define FFS_JOURNAL_SIZE_MIN 1024
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	73
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	74 #define FFS_JOURNAL_NAME ".journal"
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	75
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	76 // Default max size of file name (excluding null terminator)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	77 #define FFS_FILENAME_MAX 20
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	78
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	79 // Maximum distance in age between youngest and oldest blocks
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	80 #define FFS_DAGE_MAX 256
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	81 #define FFS_DAGE_GAIN_MIN (FFS_DAGE_MAX / 4)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	82 #define FFS_DAGE_EARLY_WIDTH 64
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	83
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	84 // Offset on file descriptors
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	85 #define FFS_FD_OFFSET '1'
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	86
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	87 // Macros to set flags and test bits in flash memory words (negative logic)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	88 #define BIT_SET(value, bits) ((value) & (~bits))
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	89 #define IS_BIT_SET(value, bits) (~(value) & (bits))
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	90
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	91 // Number of free inodes and journal entries to keep for "emergencies"
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	92 #define FFS_INODES_MARGIN 4
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	93 #define FFS_JOURNAL_MARGIN 4
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	94
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	95
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	96 /******************************************************************************
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	97 * Macros used in both drv.c and core.c
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	98 ******************************************************************************/
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	99
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	100 // Convert a offset_t value to a block index
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	101 #define offset2block(offset) (((uint32) offset) >> dev.binfo[0].size_ld)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	102
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	103 // Convert between offset and address
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	104 #define offset2addr(offset) (dev.base + (offset))
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	105
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	106 // Size of a block
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	107 #define blocksize(block) (1 << dev.binfo[block].size_ld)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	108
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	109 // Test if flag is set
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	110 #define is_open_option(options, flags) ((options & flags) == flags)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	111
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	112 // Amount of reserved space.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	113 #define RESERVED_LOW 2 * fs.journal_size
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	114 #define RESERVED_NONE 0
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	115
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	116 // We have to saturate because a recently reclaimed inodes block could
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	117 // theoretically possess a high age
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	118 #define saturate_dage(dage) (dage > (2FFS_DAGE_MAX) ? (2FFS_DAGE_MAX) : dage)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	119
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	120
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	121 /******************************************************************************
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	122 * Block Types
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	123 ******************************************************************************/
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	124
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	125 // Block age, ie. number of times block has been erased
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	126 typedef uint16 age_t;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	127
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	128 // Maximum age a block can have
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	129 #define BLOCK_AGE_MAX 0xFFFF
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	130
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	131 // ffs block status flags. These are stored in the first 2 bytes of
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	132 // the ffs block in the flash sector.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	133 enum BLOCK_FLAGS {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	134 BF_LOST = 0x80, // block is lost and will soon be erased
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	135 BF_FREE = 0x40, // free (preformatted and with block magic)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	136 BF_DATA = 0x02, // data
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	137 BF_CLEANING = 0x01, // block is being cleaned
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	138 BF_INODES = 0x10, // block contains inodes
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	139 BF_COPYING = 0x04 // block is a coming inodes block
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	140 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	141 enum BLOCK_STATES {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	142 BF_IS_EMPTY = ~(0),
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	143 BF_IS_FREE = ~(BF_FREE),
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	144 BF_IS_DATA = ~(BF_FREE \| BF_DATA),
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	145 BF_IS_CLEANING = ~(BF_FREE \| BF_DATA \| BF_CLEANING),
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	146 BF_IS_COPYING = ~(BF_FREE \| BF_COPYING),
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	147 BF_IS_INODES = ~(BF_FREE \| BF_COPYING \| BF_INODES),
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	148 BF_IS_INODES_LOST = ~(BF_FREE \| BF_COPYING \| BF_INODES \| BF_LOST)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	149 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	150
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	151 // Header of each FFS block
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	152 struct block_header_s {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	153 uint16 magic_low; // 32-bit magic number
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	154 uint16 magic_high;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	155 uint16 version; // FFS_FORMAT_VERSION used for formatting
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	156 age_t age; // number of times this block has been erased
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	157 uint16 flags; // status flags of this block (BLOCK_FLAGS)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	158 uint16 reserved0;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	159 uint16 reserved1;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	160 uint16 reserved2;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	161 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	162
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	163 // Important the below define MUST fit to the size of the header that is written
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	164 #define BHEADER_SIZE sizeof(struct block_header_s)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	165
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	166 #define OLD_BLOCK_MAGIC_LOW ('S'<<8\|'F') // "FS"
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	167 #define OLD_FFS_FORMAT_VERSION (0x0100) // 1.00 (in four-digit BCD format)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	168
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	169 // Old header of each FFS block. From old/previous FFS format version
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	170 struct block_header_old_s {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	171 uint8 flags;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	172 uint8 copied;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	173 uint8 magicflags;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	174 uint8 reserved0;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	175 uint16 magic_low;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	176 uint16 magic_high;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	177 uint16 reserved1;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	178 uint16 reserved2;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	179 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	180
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	181 // Block status. This struct holds the status of one ffs block This relation
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	182 // is always valid: <block size> = <used> + <lost> + <free>. The block size
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	183 // is obtained from the corresponding block_info structure. <used> and
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	184 // <lost> variables always holds a value which is a multiple of
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	185 // FFS_GRANULARITY. For inodes, <used> is number of inodes in active use,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	186 // <lost> is number of deleted/lost inodes, <numfiles> is the index of the
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	187 // first free inode.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	188 struct block_stat_s {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	189 blocksize_t used; // number of used bytes
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	190 blocksize_t lost; // number of lost bytes
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	191 uint16 flags; // flash block flags (first 16 bits of each block)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	192 uint16 objects; // number of valid objects
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	193 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	194
211 847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	195 /******************************************************************************
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	196 * External declarations
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	197 ******************************************************************************/
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	198
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	199 extern struct fs_s fs;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	200 extern struct block_stat_s bstat[FFS_BLOCKS_MAX];
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	201
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	202 extern struct ffs_stats_s stats;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	203
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	204 extern const struct block_info_s *binfo;
847e2585a0f2 gsm-fw/services/ffs: core.c integrated Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: 209 diff changeset	205
209 6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	206
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	207 /******************************************************************************
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	208 * Object Types
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	209 ******************************************************************************/
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	210
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	211 // This enum MUST be in sync with the one in ffs.h.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	212 enum OBJECT_TYPE_E {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	213 // remaining filetypes are in ffs.h
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	214 OT_ERASED = 0,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	215 OT_NULL = 7,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	216 OT_MASK = 7,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	217 OT_MAX = 4
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	218 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	219
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	220 // This enum MUST be in sync with the one in ffs.h.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	221 enum OBJECT_FLAGS_E {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	222 // remaining object flags are in ffs.h
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	223 OF_UNDEF0 = 1<<5,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	224 OF_UNDEF1 = 1<<6,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	225 OF_EXACT = 1<<7, // used by control()/update_commit() interaction. This
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	226 // is not an object flag!
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	227 OF_ALL = OF_READONLY, // all flags allowed to be changed by user
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	228 OF_MASK = 0xF0
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	229 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	230
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	231 struct inode_s {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	232 uint16 size;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	233 uint8 reserved; // size extension?
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	234 objflags_t flags;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	235 iref_t child; // link to first inode in dir (this inode is a dir)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	236 iref_t sibling; // link to next inode in same directory
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	237 location_t location; // location of object
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	238 uint16 sequence; //
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	239 uint16 updates; // times this object has been updated
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	240 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	241
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	242 struct file_descriptor_s {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	243 char *buf; // Write buffer
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	244 iref_t seghead; // First chunk. Contain file name and optional data
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	245 iref_t wch; // Inode of work chunk (if chunk is read to buf)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	246 int fp; // File pointer
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	247 int wfp; // Work file pointer always points to start of wch
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	248 int size; // Size of object (all chunks and data from buf)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	249 int8 options; // Open options
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	250 int dirty; // Indicate if buf contain valid data or not
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	251 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	252
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	253
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	254 /******************************************************************************
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	255 * Journal types and global fs structure
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	256 ******************************************************************************/
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	257
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	258 enum JOURNAL_FLAGS {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	259 JOURNAL_WRITING = 0x02, // journal is being written to journal file
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	260 JOURNAL_READY = 0x04, // journal has been written to journal file
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	261 JOURNAL_DONE = 0x08 // journal has been written to ffs
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	262 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	263
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	264 enum JOURNAL_STATES {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	265 JOURNAL_IS_EMPTY = ~(0),
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	266 JOURNAL_IS_WRITING = ~(JOURNAL_WRITING),
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	267 JOURNAL_IS_READY = ~(JOURNAL_WRITING \| JOURNAL_READY),
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	268 JOURNAL_IS_DONE = ~(JOURNAL_WRITING \| JOURNAL_READY \| JOURNAL_DONE)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	269 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	270
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	271 // Journal entry structure. Note that the state byte MUST be the first
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	272 // byte of the structure!
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	273 struct journal_s {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	274 uint8 state; // state of journal entry.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	275 objflags_t flags; // type of object
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	276 iref_t i; // iref of object
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	277 iref_t diri; // iref of object that is this object's parent/sibling
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	278 iref_t oldi; // iref of object being replaced (only for updates)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	279 location_t location; // object's location
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	280 uint16 size; // object's size
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	281 iref_t repli; // inode which is replaced
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	282 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	283
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	284 // Main ffs info struct (initialised by ffs_initialize())
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	285 struct fs_s {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	286 struct inode_s *inodes_addr; // base address of inodes
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	287 iref_t root; // iref of root directory
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	288 bref_t inodes; // index into bstat containing inode block
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	289 bref_t newinodes; // index into bstat containing new inode block
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	290 bref_t blocks_free_min; // Number of spare blocks (0 or 1)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	291 int filesize_max; // Max size of object data
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	292 int reserved_space; // Byte size of space reserved for journal relocation
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	293 iref_t inodes_max; // Max number of inodes possible
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	294 iref_t inodes_high; // number of inodes triggering an inodes_reclaim()
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	295 iref_t objects_max; // Max number of objects (valid inodes) allowed
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	296 age_t age_max; // Max block age found by blocks_fsck()
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	297 iref_t block_files_max; // max number of files in a block
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	298 iref_t block_files_reserved; // Reserved for journals
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	299 uint16 format; // FFS version as formatted in flash blocks
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	300 uint16 sequence; // Object sequence number (for debug only)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	301 effs_t initerror; // ffs_initialize() return code
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	302 uint8 lost_threshold; // Threshold percentage for data block reclaim
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	303 uint8 flags; // Global FFS options/flags
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	304 uint8 filename_max; // Max length of a filename
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	305 uint8 path_depth_max; // Max path componenents allowed
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	306 uint8 numfds; // Mumber of available file descriptors
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	307 uint8 testflags;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	308 int8 journal_depth; // Current journal nesting depth (0 or 1)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	309 iref_t ijournal; // iref of journal file
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	310 uint32 journal_size; // Byte size of journal file
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	311 uint32 journal_pos; // Byte offset to first free entry in journal file
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	312 struct journal_s journal;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	313 uint8 fd_max; // number of max available file descriptors
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	314 int fd_buf_size; // size of stream buffer
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	315 struct file_descriptor_s fd[FFS_FD_MAX];
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	316 struct journal_s ojournal; // "Old" journal
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	317 int link_child; // Link child in journal or not
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	318 iref_t i_backup; // Used by ffs_file_write()
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	319 int chunk_size_max; // Max size of one chunk
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	320 int chunk_size_min; // Min size of one chunk
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	321 uint32 debug[4];
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	322 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	323
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	324 // This is the layout of the FFS performance statistics file. The file is
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	325 // created with the name ".statistics" in the root directory at format. It
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	326 // is updated after each data and inodes reclaim (after writing the file
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	327 // that provoked the reclaim). The file is only updated if it exists, so if
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	328 // the user does not want the file, she can erase it after the initial
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	329 // format. FIXME: The use of the .statistics file is not yet implemented
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	330 struct ffs_stats_s {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	331 uint32 data_allocated; // implemented
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	332
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	333 struct { // Not yet implemented
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	334 uint32 created;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	335 uint32 updated;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	336 uint32 read;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	337 } files;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	338 struct { // Not yet implemented
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	339 uint32 written[2];
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	340 uint32 read[2];
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	341 } bytes;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	342 struct {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	343 uint32 most_lost; // Block candidate
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	344 uint32 most_unused; // Block candidate
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	345 uint32 youngest; // Block candidate
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	346 uint32 valid[2]; // Amount of valid reclaimed data
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	347 uint32 lost[2]; // Amount of lost reclaimed data
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	348 } drec;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	349 struct {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	350 uint32 num; // Number of inode reclaims
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	351 uint32 valid; // Number of valid reclaimed inodes
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	352 uint32 lost; // Number of lost reclaimed inodes
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	353 } irec;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	354 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	355 extern struct ffs_stats_s stats;
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	356
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	357
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	358 /******************************************************************************
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	359 * Miscellaneous types
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	360 ******************************************************************************/
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	361
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	362 // only used with (FFS_TEST == 1)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	363 enum TEST_RECOVERY {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	364 JOURNAL_TEST_BASE = 0x10,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	365 JOURNAL_TEST_EMPTY,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	366 JOURNAL_TEST_WRITING,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	367 JOURNAL_TEST_READY,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	368 JOURNAL_TEST_COMMITTING,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	369 JOURNAL_TEST_COMMITTED,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	370 JOURNAL_TEST_DONE,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	371 BLOCK_COMMIT_BASE = 0x20,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	372 BLOCK_COMMIT_BEFORE,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	373 BLOCK_COMMIT_NO_VALID,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	374 BLOCK_COMMIT_OLD_FREE,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	375 BLOCK_COMMIT_AFTER,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	376 BLOCK_RECLAIM_BASE = 0x40,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	377 BLOCK_RECLAIM_ALLOC,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	378 BLOCK_RECLAIM_CLEANING,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	379 BLOCK_RECLAIM_NO_CLEAN,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	380 BLOCK_RECOVER_OBJECTS
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	381 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	382
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	383 enum FLASH_DATA {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	384 FLASH_NULL8 = 0xFF,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	385 FLASH_NULL16 = 0xFFFF,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	386 FLASH_NULL32 = 0xFFFFFFFFL,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	387 IREF_NULL = FLASH_NULL16
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	388 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	389
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	390
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	391 // This enum MUST be in sync with the one in ffs.h.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	392 enum OBJECT_CONTROL {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	393 // remaining object control codes are in ffs.h
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	394 OC_FS_FLAGS = 80,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	395 OC_TRACE_INIT = 82,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	396 OC_DEV_MANUFACT = 88,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	397 OC_DEV_DEVICE = 89,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	398
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	399 OC_DEBUG_FIRST = 120,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	400 OC_DEBUG_0 = 120,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	401 OC_DEBUG_1 = 121,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	402 OC_DEBUG_2 = 122,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	403 OC_DEBUG_3 = 123,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	404 OC_DEBUG_LAST = 123,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	405
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	406 OC_FS_TESTFLAGS = 127
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	407 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	408
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	409 enum FS_FLAGS {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	410 FS_DIR_DATA = 0x01 // allow directory objects to contain data.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	411 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	412
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	413 enum RECLAIM_CANDIDATE {
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	414 MOST_LOST,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	415 MOST_UNUSED,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	416 YOUNGEST
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	417 };
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	418
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	419 /******************************************************************************
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	420 * Macros
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	421 ******************************************************************************/
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	422
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	423 // Convert between location and offset
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	424 #define location2offset(location) ((location) << dev.atomlog2)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	425 #define offset2location(offset) (((uint32) offset) >> dev.atomlog2)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	426
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	427 // test if object is of a specific type
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	428 #define is_object(objp, type) (((objp)->flags & OT_MASK) == (type))
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	429
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	430 // test if object is valid (directory, file or symlink)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	431 #define is_object_valid(ip) ((ip->flags & OT_MASK) <= OT_MAX && (ip->flags & OT_MASK) != OT_ERASED)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	432
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	433 // test if block is in a specific state
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	434 #define is_block(block, state) (bstat[block].flags == (uint16) (state))
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	435
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	436 // test if block has certain flags set
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	437 #define is_block_flag(block, bits) (IS_BIT_SET(bstat[block].flags, (bits)))
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	438
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	439 // convert an object's data address to the address of the object's name
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	440 #define addr2name(addr) (addr)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	441
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	442 // Convert a size to an aligned size
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	443 #define atomalign(size) (((size) + dev.atomsize-1) & ~dev.atomnotmask)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	444 #define wordalign(size) (((size) + 3) & ~3)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	445 #define halfwordalign(size) (((size) + 1) & ~1)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	446
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	447 #define inode_addr(i) (fs.inodes_addr + i)
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	448
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	449 #define JOURNAL_POS_INITIAL (wordalign(2 + sizeof(FFS_JOURNAL_NAME) + 1))
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	450
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	451
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	452 /******************************************************************************
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	453 * Function prototypes
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	454 ******************************************************************************/
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	455
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	456 // Helper functions
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	457
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	458 effs_t is_filename(const char *s);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	459 int ffs_strlen(const char *s);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	460 int ffs_strcmp(const char s, const char p);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	461 char addr2data(const char addr, const struct inode_s *ip);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	462
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	463 int object_datasize(iref_t i);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	464 iref_t is_readonly(iref_t i, const char *name);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	465 iref_t dir_traverse(iref_t i, iref_t *entries);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	466
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	467 bref_t block_alloc(bref_t n, uint16 flags);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	468 bref_t block_alloc_try(bref_t *n);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	469 void block_flags_write(uint8 block, uint8 flags);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	470
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	471 offset_t data_alloc(int size);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	472 offset_t data_alloc_try(int size);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	473 offset_t data_reserved_alloc(int size);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	474
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	475 iref_t inode_alloc(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	476
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	477 effs_t is_fd_valid(fd_t fdi);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	478 effs_t is_offset_in_buf(int offset, fd_t fdi);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	479
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	480 iref_t chunk_alloc(int realsize, int is_journal, offset_t *offset);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	481
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	482 iref_t inode_alloc_try(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	483 fd_t get_fdi(iref_t i);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	484
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	485 offset_t data_prealloc(int realsize);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	486
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	487 // Functions used by API
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	488
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	489 effs_t object_update(iref_t oldi);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	490 iref_t object_create(const char name, const char buf, int size,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	491 iref_t dir);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	492 int file_read(const char name, void addr, int size);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	493 int stream_read(fd_t fdi, void *src, int size);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	494 int object_read(const char name, char buf, int size, int linkflag);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	495
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	496 iref_t object_stat(const char name, struct xstat_s stat,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	497 int linkflag, int fdi, int extended);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	498 effs_t object_remove(iref_t i);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	499 iref_t object_rename(iref_t oldi, const char *newname, iref_t newdir);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	500 effs_t object_control(iref_t i, int8 action, int value);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	501 int object_truncate(const char *pathname, fd_t fdi, offset_t length);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	502 iref_t object_lookup(const char path, char leaf, iref_t dir);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	503 iref_t object_lookup_once(const char path, char leaf, iref_t dir);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	504 iref_t dir_open(const char *name);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	505 iref_t dir_next (iref_t dir, iref_t i, char *name, int8 size);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	506
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	507
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	508 // Journalling
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	509
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	510 void journal_begin(iref_t oldi);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	511 void journal_end(uint8 type);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	512 void journal_commit(uint8 type);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	513 int journal_push(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	514 int journal_pop(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	515 iref_t journal_create(iref_t oldi);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	516 effs_t journal_init(iref_t i);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	517
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	518
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	519 // Format, Init and Reclaim
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	520
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	521 void block_preformat(bref_t b, age_t age);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	522 effs_t fs_preformat(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	523 effs_t is_formattable(int8 flag);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	524 effs_t fs_format(const char *fsname_and_options);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	525
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	526 effs_t ffs_initialize(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	527 void fs_params_init(const char *p);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	528 blocksize_t block_used(bref_t b);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	529
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	530 effs_t ffs_begin(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	531 int ffs_end(int error);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	532
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	533 int block_reclaim(bref_t b);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	534 int blocks_reclaim(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	535 void block_commit(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	536
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	537 iref_t data_reclaim(int space);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	538 int data_reclaim_try(int space);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	539 iref_t data_block_reclaim(bref_t b, int reclaim_candidate);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	540 iref_t object_relocate(iref_t oldi);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	541 iref_t block_clean(bref_t b);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	542
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	543 void block_free(bref_t block);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	544
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	545 void inodes_set(iref_t i);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	546 effs_t inodes_reclaim(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	547
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	548 int reclaim(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	549
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	550 // Internally used functions
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	551
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	552 effs_t file_read_int(const char path, void src, int size);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	553 effs_t file_update(const char path, void src, int size);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	554
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	555 int statistics_file_create(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	556 int statistics_write(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	557 void statistics_init(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	558 void statistics_update_drec(int valid, int lost, int candidate);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	559 void statistics_update_irec(int valid, int lost);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	560
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	561 // Chunk Operations
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	562 iref_t segment_create(const char *buf, int size, iref_t dir);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	563 int segment_datasize(const struct inode_s *ip);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	564 int segment_read(iref_t i, char *buf, int size, int offset);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	565 iref_t segment_next(iref_t i);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	566 iref_t segment_traverse(iref_t i, iref_t *entries);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	567 int segfile_seek(iref_t in_i, int in_pos,
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	568 iref_t out_i, int out_pos_i);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	569 iref_t chunk_traverse(iref_t i);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	570 effs_t datasync(fd_t fdi);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	571 // debug/test functions
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	572
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	573 void tr_bstat(void);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	574 void tr_fd(fd_t fdi);
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	575
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	576 // These prototypes really belong in ffs.h but as they have not been
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	577 // implemented, we will not show these prototypes to application
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	578 // programmers.
6f4a12b4582f gsm-fw FFS: starting to integrate C code Michael Spacefalcon <msokolov@ivan.Harhan.ORG> parents: diff changeset	579 effs_t fcntl(fd_t fd, int8 action, uint32 *param);

FreeCalypso > hg > freecalypso-sw

annotate gsm-fw/services/ffs/core.h @ 1034:405b5469abc4 default tip