annotate gsm-fw/services/ffs/core.h @ 346:fdeea3d6582d

OSL: reconstruction of os_isr.c (_fl only) started
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Wed, 07 May 2014 19:50:01 +0000
parents 847e2585a0f2
children
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1 /******************************************************************************
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2 * Flash File System (ffs)
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3 * Idea, design and coding by Mads Meisner-Jensen, mmj@ti.com
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4 *
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5 * ffs core functions
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6 *
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7 * $Id: core.h 1.80.1.15.1.36 Thu, 08 Jan 2004 15:05:23 +0100 tsj $
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8 *
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9 ******************************************************************************/
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10
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11 #if (TARGET == 1)
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12 #include "../../riviera/rv/rv_defined_swe.h"
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13 #endif
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14
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15 /******************************************************************************
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16 * Compile option switches
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17 ******************************************************************************/
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18
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19 // FFS compiled with extra test functionality
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20 #define FFS_TEST 1
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21
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22 // Default max number of simultaneous open files
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23 #ifdef RVM_MSFE_SWE
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24 #define FFS_FD_MAX 20
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25 #else
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26 #define FFS_FD_MAX 4
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27 #endif
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28
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29 #define FFS_RECLAIM_NEW 1
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30
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31 /******************************************************************************
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32 * Compile constants
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33 ******************************************************************************/
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34
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35 // FFS API version (in four-digit BCD format)
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36 #define FFS_API_VERSION ((uint16) 0x0642)
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37
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38 // FFS_DRV_VERSION is in drv.h
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39
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40 // TMFFS protocol version is in tmffs.h
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41
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42 // Magic for determining (formatted) file system version. First two digits
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43 // represent major version, bottom two digits represent minor version. An
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44 // ffs code compiled for one major version X is compatible with any other
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45 // format version with major = X. Minor version is incremented when adding
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46 // new features that does not break compatibility.
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47 #define FFS_FORMAT_VERSION (0x0210)
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48 #define BLOCK_MAGIC_LOW ('f'<<8|'F') // "Ffs#"
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49 #define BLOCK_MAGIC_HIGH ('#'<<8|'s')
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50 #define BLOCK_MAGIC ((BLOCK_MAGIC_HIGH << 8)|(BLOCK_MAGIC_LOW))
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51
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52 // Absolute maximum number of inodes allowed
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53 #define FFS_INODES_MAX 2048
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54
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55 // Default maximum number of inodes allowed
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56 #define FFS_INODES_MAX_DEFAULT 1024
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57
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58 // Default number of path components (limit due to recursiveness of
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59 // inodes_reclaim())
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60 #define FFS_PATH_DEPTH_MAX 6
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61
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62 // Maximum number of blocks (flash sectors) in a ffs system. FFS_BLOCKS_MAX
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63 // must be >= the number of blocks in the largest flash device memory
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64 // map. It is used to allocate the number of entries in the static bstat
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65 // array.
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66 #define FFS_BLOCKS_MAX 128
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67 // Default size of journal file (represented as 256'ths of the blocksize)
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68 #define FFS_JOURNAL_SIZE_IN256THS 16 // one 16'ths of the block size.
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69
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70 // Without the min size will the maximum of files (fs.blocks_files_max) in
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71 // one block be 32 files if the blocksize is 8kB!
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72 #define FFS_JOURNAL_SIZE_MIN 1024
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73
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74 #define FFS_JOURNAL_NAME ".journal"
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75
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76 // Default max size of file name (excluding null terminator)
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77 #define FFS_FILENAME_MAX 20
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78
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79 // Maximum distance in age between youngest and oldest blocks
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80 #define FFS_DAGE_MAX 256
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81 #define FFS_DAGE_GAIN_MIN (FFS_DAGE_MAX / 4)
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82 #define FFS_DAGE_EARLY_WIDTH 64
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83
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84 // Offset on file descriptors
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85 #define FFS_FD_OFFSET '1'
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86
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87 // Macros to set flags and test bits in flash memory words (negative logic)
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88 #define BIT_SET(value, bits) ((value) & (~bits))
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89 #define IS_BIT_SET(value, bits) (~(value) & (bits))
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90
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91 // Number of free inodes and journal entries to keep for "emergencies"
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92 #define FFS_INODES_MARGIN 4
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93 #define FFS_JOURNAL_MARGIN 4
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94
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95
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96 /******************************************************************************
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97 * Macros used in both drv.c and core.c
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98 ******************************************************************************/
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99
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100 // Convert a offset_t value to a block index
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101 #define offset2block(offset) (((uint32) offset) >> dev.binfo[0].size_ld)
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102
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103 // Convert between offset and address
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104 #define offset2addr(offset) (dev.base + (offset))
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105
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106 // Size of a block
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107 #define blocksize(block) (1 << dev.binfo[block].size_ld)
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108
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109 // Test if flag is set
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110 #define is_open_option(options, flags) ((options & flags) == flags)
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111
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112 // Amount of reserved space.
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113 #define RESERVED_LOW 2 * fs.journal_size
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114 #define RESERVED_NONE 0
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115
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116 // We have to saturate because a recently reclaimed inodes block could
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117 // theoretically possess a high age
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118 #define saturate_dage(dage) (dage > (2*FFS_DAGE_MAX) ? (2*FFS_DAGE_MAX) : dage)
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119
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120
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121 /******************************************************************************
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122 * Block Types
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123 ******************************************************************************/
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124
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125 // Block age, ie. number of times block has been erased
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126 typedef uint16 age_t;
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127
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128 // Maximum age a block can have
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129 #define BLOCK_AGE_MAX 0xFFFF
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130
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131 // ffs block status flags. These are stored in the first 2 bytes of
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132 // the ffs block in the flash sector.
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133 enum BLOCK_FLAGS {
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134 BF_LOST = 0x80, // block is lost and will soon be erased
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135 BF_FREE = 0x40, // free (preformatted and with block magic)
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136 BF_DATA = 0x02, // data
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137 BF_CLEANING = 0x01, // block is being cleaned
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138 BF_INODES = 0x10, // block contains inodes
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139 BF_COPYING = 0x04 // block is a coming inodes block
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140 };
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141 enum BLOCK_STATES {
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142 BF_IS_EMPTY = ~(0),
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143 BF_IS_FREE = ~(BF_FREE),
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144 BF_IS_DATA = ~(BF_FREE | BF_DATA),
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145 BF_IS_CLEANING = ~(BF_FREE | BF_DATA | BF_CLEANING),
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146 BF_IS_COPYING = ~(BF_FREE | BF_COPYING),
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147 BF_IS_INODES = ~(BF_FREE | BF_COPYING | BF_INODES),
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148 BF_IS_INODES_LOST = ~(BF_FREE | BF_COPYING | BF_INODES | BF_LOST)
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149 };
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150
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151 // Header of each FFS block
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152 struct block_header_s {
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153 uint16 magic_low; // 32-bit magic number
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154 uint16 magic_high;
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155 uint16 version; // FFS_FORMAT_VERSION used for formatting
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156 age_t age; // number of times this block has been erased
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157 uint16 flags; // status flags of this block (BLOCK_FLAGS)
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158 uint16 reserved0;
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159 uint16 reserved1;
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160 uint16 reserved2;
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161 };
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162
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163 // Important the below define MUST fit to the size of the header that is written
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164 #define BHEADER_SIZE sizeof(struct block_header_s)
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165
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166 #define OLD_BLOCK_MAGIC_LOW ('S'<<8|'F') // "FS"
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167 #define OLD_FFS_FORMAT_VERSION (0x0100) // 1.00 (in four-digit BCD format)
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168
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169 // Old header of each FFS block. From old/previous FFS format version
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170 struct block_header_old_s {
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171 uint8 flags;
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172 uint8 copied;
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173 uint8 magicflags;
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174 uint8 reserved0;
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175 uint16 magic_low;
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176 uint16 magic_high;
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177 uint16 reserved1;
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178 uint16 reserved2;
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179 };
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180
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181 // Block status. This struct holds the status of one ffs block This relation
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182 // is always valid: <block size> = <used> + <lost> + <free>. The block size
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183 // is obtained from the corresponding block_info structure. <used> and
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184 // <lost> variables always holds a value which is a multiple of
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185 // FFS_GRANULARITY. For inodes, <used> is number of inodes in active use,
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186 // <lost> is number of deleted/lost inodes, <numfiles> is the index of the
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187 // first free inode.
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188 struct block_stat_s {
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189 blocksize_t used; // number of used bytes
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190 blocksize_t lost; // number of lost bytes
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191 uint16 flags; // flash block flags (first 16 bits of each block)
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192 uint16 objects; // number of valid objects
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193 };
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194
211
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195 /******************************************************************************
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196 * External declarations
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197 ******************************************************************************/
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198
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199 extern struct fs_s fs;
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200 extern struct block_stat_s bstat[FFS_BLOCKS_MAX];
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201
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202 extern struct ffs_stats_s stats;
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203
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204 extern const struct block_info_s *binfo;
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205
209
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206
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207 /******************************************************************************
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208 * Object Types
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209 ******************************************************************************/
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210
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211 // This enum MUST be in sync with the one in ffs.h.
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212 enum OBJECT_TYPE_E {
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213 // remaining filetypes are in ffs.h
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214 OT_ERASED = 0,
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215 OT_NULL = 7,
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216 OT_MASK = 7,
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217 OT_MAX = 4
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218 };
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219
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220 // This enum MUST be in sync with the one in ffs.h.
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221 enum OBJECT_FLAGS_E {
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222 // remaining object flags are in ffs.h
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223 OF_UNDEF0 = 1<<5,
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224 OF_UNDEF1 = 1<<6,
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225 OF_EXACT = 1<<7, // used by control()/update_commit() interaction. This
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226 // is *not* an object flag!
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227 OF_ALL = OF_READONLY, // all flags allowed to be changed by user
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228 OF_MASK = 0xF0
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229 };
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230
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231 struct inode_s {
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232 uint16 size;
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233 uint8 reserved; // size extension?
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234 objflags_t flags;
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235 iref_t child; // link to first inode in dir (this inode is a dir)
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236 iref_t sibling; // link to next inode in same directory
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237 location_t location; // location of object
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238 uint16 sequence; //
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239 uint16 updates; // times this object has been updated
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240 };
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241
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242 struct file_descriptor_s {
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243 char *buf; // Write buffer
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244 iref_t seghead; // First chunk. Contain file name and optional data
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245 iref_t wch; // Inode of work chunk (if chunk is read to buf)
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246 int fp; // File pointer
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247 int wfp; // Work file pointer always points to start of wch
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248 int size; // Size of object (all chunks and data from buf)
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249 int8 options; // Open options
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250 int dirty; // Indicate if buf contain valid data or not
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251 };
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252
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253
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254 /******************************************************************************
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255 * Journal types and global fs structure
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256 ******************************************************************************/
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257
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258 enum JOURNAL_FLAGS {
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259 JOURNAL_WRITING = 0x02, // journal is being written to journal file
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260 JOURNAL_READY = 0x04, // journal has been written to journal file
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261 JOURNAL_DONE = 0x08 // journal has been written to ffs
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262 };
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263
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264 enum JOURNAL_STATES {
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265 JOURNAL_IS_EMPTY = ~(0),
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266 JOURNAL_IS_WRITING = ~(JOURNAL_WRITING),
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267 JOURNAL_IS_READY = ~(JOURNAL_WRITING | JOURNAL_READY),
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268 JOURNAL_IS_DONE = ~(JOURNAL_WRITING | JOURNAL_READY | JOURNAL_DONE)
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269 };
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270
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271 // Journal entry structure. Note that the state byte *MUST* be the first
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272 // byte of the structure!
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273 struct journal_s {
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274 uint8 state; // state of journal entry.
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275 objflags_t flags; // type of object
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276 iref_t i; // iref of object
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277 iref_t diri; // iref of object that is this object's parent/sibling
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278 iref_t oldi; // iref of object being replaced (only for updates)
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279 location_t location; // object's location
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280 uint16 size; // object's size
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281 iref_t repli; // inode which is replaced
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282 };
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283
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284 // Main ffs info struct (initialised by ffs_initialize())
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285 struct fs_s {
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286 struct inode_s *inodes_addr; // base address of inodes
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287 iref_t root; // iref of root directory
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288 bref_t inodes; // index into bstat containing inode block
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289 bref_t newinodes; // index into bstat containing new inode block
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290 bref_t blocks_free_min; // Number of spare blocks (0 or 1)
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291 int filesize_max; // Max size of object data
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292 int reserved_space; // Byte size of space reserved for journal relocation
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293 iref_t inodes_max; // Max number of inodes possible
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294 iref_t inodes_high; // number of inodes triggering an inodes_reclaim()
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295 iref_t objects_max; // Max number of objects (valid inodes) allowed
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296 age_t age_max; // Max block age found by blocks_fsck()
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297 iref_t block_files_max; // max number of files in a block
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298 iref_t block_files_reserved; // Reserved for journals
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299 uint16 format; // FFS version as formatted in flash blocks
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300 uint16 sequence; // Object sequence number (for debug only)
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301 effs_t initerror; // ffs_initialize() return code
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302 uint8 lost_threshold; // Threshold percentage for data block reclaim
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303 uint8 flags; // Global FFS options/flags
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304 uint8 filename_max; // Max length of a filename
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305 uint8 path_depth_max; // Max path componenents allowed
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306 uint8 numfds; // Mumber of available file descriptors
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307 uint8 testflags;
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308 int8 journal_depth; // Current journal nesting depth (0 or 1)
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309 iref_t ijournal; // iref of journal file
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310 uint32 journal_size; // Byte size of journal file
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311 uint32 journal_pos; // Byte offset to first free entry in journal file
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312 struct journal_s journal;
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313 uint8 fd_max; // number of max available file descriptors
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314 int fd_buf_size; // size of stream buffer
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315 struct file_descriptor_s fd[FFS_FD_MAX];
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316 struct journal_s ojournal; // "Old" journal
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317 int link_child; // Link child in journal or not
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318 iref_t i_backup; // Used by ffs_file_write()
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319 int chunk_size_max; // Max size of one chunk
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320 int chunk_size_min; // Min size of one chunk
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321 uint32 debug[4];
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322 };
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323
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324 // This is the layout of the FFS performance statistics file. The file is
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325 // created with the name ".statistics" in the root directory at format. It
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326 // is updated after each data and inodes reclaim (after writing the file
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327 // that provoked the reclaim). The file is only updated if it exists, so if
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328 // the user does not want the file, she can erase it after the initial
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329 // format. FIXME: The use of the .statistics file is not yet implemented
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330 struct ffs_stats_s {
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331 uint32 data_allocated; // implemented
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diff changeset
332
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333 struct { // Not yet implemented
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334 uint32 created;
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335 uint32 updated;
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336 uint32 read;
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337 } files;
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338 struct { // Not yet implemented
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339 uint32 written[2];
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340 uint32 read[2];
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341 } bytes;
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342 struct {
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343 uint32 most_lost; // Block candidate
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344 uint32 most_unused; // Block candidate
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345 uint32 youngest; // Block candidate
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diff changeset
346 uint32 valid[2]; // Amount of valid reclaimed data
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347 uint32 lost[2]; // Amount of lost reclaimed data
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348 } drec;
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349 struct {
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350 uint32 num; // Number of inode reclaims
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351 uint32 valid; // Number of valid reclaimed inodes
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352 uint32 lost; // Number of lost reclaimed inodes
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353 } irec;
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354 };
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355 extern struct ffs_stats_s stats;
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356
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diff changeset
357
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358 /******************************************************************************
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359 * Miscellaneous types
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360 ******************************************************************************/
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361
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diff changeset
362 // only used with (FFS_TEST == 1)
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363 enum TEST_RECOVERY {
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diff changeset
364 JOURNAL_TEST_BASE = 0x10,
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diff changeset
365 JOURNAL_TEST_EMPTY,
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diff changeset
366 JOURNAL_TEST_WRITING,
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diff changeset
367 JOURNAL_TEST_READY,
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parents:
diff changeset
368 JOURNAL_TEST_COMMITTING,
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parents:
diff changeset
369 JOURNAL_TEST_COMMITTED,
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diff changeset
370 JOURNAL_TEST_DONE,
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diff changeset
371 BLOCK_COMMIT_BASE = 0x20,
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parents:
diff changeset
372 BLOCK_COMMIT_BEFORE,
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parents:
diff changeset
373 BLOCK_COMMIT_NO_VALID,
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parents:
diff changeset
374 BLOCK_COMMIT_OLD_FREE,
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parents:
diff changeset
375 BLOCK_COMMIT_AFTER,
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diff changeset
376 BLOCK_RECLAIM_BASE = 0x40,
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parents:
diff changeset
377 BLOCK_RECLAIM_ALLOC,
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parents:
diff changeset
378 BLOCK_RECLAIM_CLEANING,
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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);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
505 iref_t dir_next (iref_t dir, iref_t i, char *name, int8 size);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
506
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
507
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
508 // Journalling
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
509
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
510 void journal_begin(iref_t oldi);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
511 void journal_end(uint8 type);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
512 void journal_commit(uint8 type);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
513 int journal_push(void);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
514 int journal_pop(void);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
515 iref_t journal_create(iref_t oldi);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
516 effs_t journal_init(iref_t i);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
517
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
518
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
519 // Format, Init and Reclaim
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
520
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
521 void block_preformat(bref_t b, age_t age);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
522 effs_t fs_preformat(void);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
523 effs_t is_formattable(int8 flag);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
524 effs_t fs_format(const char *fsname_and_options);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
525
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
526 effs_t ffs_initialize(void);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
527 void fs_params_init(const char *p);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
528 blocksize_t block_used(bref_t b);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
529
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
530 effs_t ffs_begin(void);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
531 int ffs_end(int error);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
532
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
533 int block_reclaim(bref_t b);
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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);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
536
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
537 iref_t data_reclaim(int space);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
538 int data_reclaim_try(int space);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
539 iref_t data_block_reclaim(bref_t b, int reclaim_candidate);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
540 iref_t object_relocate(iref_t oldi);
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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
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
543 void block_free(bref_t block);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
544
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
545 void inodes_set(iref_t i);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
546 effs_t inodes_reclaim(void);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
547
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
548 int reclaim(void);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
549
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
550 // Internally used functions
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
551
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
552 effs_t file_read_int(const char *path, void *src, int size);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
553 effs_t file_update(const char *path, void *src, int size);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
554
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
555 int statistics_file_create(void);
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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);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
558 void statistics_update_drec(int valid, int lost, int candidate);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
559 void statistics_update_irec(int valid, int lost);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
560
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
561 // Chunk Operations
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
562 iref_t segment_create(const char *buf, int size, iref_t dir);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
563 int segment_datasize(const struct inode_s *ip);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
564 int segment_read(iref_t i, char *buf, int size, int offset);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
565 iref_t segment_next(iref_t i);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
566 iref_t segment_traverse(iref_t i, iref_t *entries);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
567 int segfile_seek(iref_t in_i, int in_pos,
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
568 iref_t *out_i, int *out_pos_i);
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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);
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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);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
575
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
576 // These prototypes really belong in ffs.h but as they have not been
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
577 // implemented, we will not show these prototypes to application
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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);