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302
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1 #include "types.h"
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301
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2 #include "defs.h"
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302
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3 #include "param.h"
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4 #include "stat.h"
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5 #include "mmu.h"
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6 #include "proc.h"
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7 #include "spinlock.h"
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8 #include "buf.h"
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301
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9 #include "fs.h"
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302
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10 #include "file.h"
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295
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11 #interface "fs.dg"
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294
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12
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13 // ----
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14 // typedef struct fs_impl<Impl, Isa> impl fs{
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15 // union Data* fs_impl;
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16 //
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17 //
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18 //
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19 //
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20 // } fs_impl;
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21 // ----
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22
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23 fs* createfs_impl(struct Context* cbc_context) {
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24 struct fs* fs = new fs();
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25 struct fs_impl* fs_impl = new fs_impl();
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26 fs->fs = (union Data*)fs_impl;
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27 fs_impl->fs_impl = NULL;
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28 fs->readsb = C_readsbfs_impl;
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29 fs->iinit = C_iinitfs_impl;
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30 fs->ialloc = C_iallocfs_impl;
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302
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31 fs_impl->allocinode = C_allocinode;
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32 fs_impl->allocinode_loop = C_allocinode_loop;
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303
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33 fs_impl->allocinode_loopcheck = C_allocinode_loopcheck;
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34 fs_impl->allocinode_noloop = C_allocinode_noloop;
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294
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35 fs->iupdate = C_iupdatefs_impl;
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36 fs->idup = C_idupfs_impl;
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37 fs->ilock = C_ilockfs_impl;
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38 fs->iunlock = C_iunlockfs_impl;
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39 fs->iput = C_iputfs_impl;
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40 fs->iunlockput = C_iunlockputfs_impl;
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41 fs->stati = C_statifs_impl;
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42 fs->readi = C_readifs_impl;
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43 fs->writei = C_writeifs_impl;
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44 fs->namecmp = C_namecmpfs_impl;
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45 fs->dirlookup = C_dirlookupfs_impl;
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296
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46 fs->dirlink = C_dirlinkfs_impl;
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294
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47 fs->namei = C_nameifs_impl;
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48 fs->nameiparent = C_nameiparentfs_impl;
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49 return fs;
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50 }
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298
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51
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299
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52 typedef struct superblock superblock;
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296
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53 __code readsbfs_impl(struct fs_impl* fs, uint dev, struct superblock* sb, __code next(...)) { //:skip
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294
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54
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301
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55 struct buf* bp;
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56
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57 bp = bread(dev, 1);
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58 memmove(sb, bp->data, sizeof(*sb));
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59 brelse(bp);
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60
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294
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61 goto next(...);
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62 }
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63
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302
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64 struct {
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65 struct spinlock lock;
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66 struct inode inode[NINODE];
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67 } icache;
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68
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294
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69 __code iinitfs_impl(struct fs_impl* fs, __code next(...)) {
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70
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302
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71 initlock(&icache.lock, "icache");
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72
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294
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73 goto next(...);
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74 }
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75
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76 __code iallocfs_impl(struct fs_impl* fs, uint dev, short type, __code next(...)) {
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302
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77 goto allocinode(fs, dev, type, next(...));
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294
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78 }
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79
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80 __code iupdatefs_impl(struct fs_impl* fs, struct inode* ip, __code next(...)) {
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81
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82 goto next(...);
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83 }
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84
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85 __code idupfs_impl(struct fs_impl* fs, struct inode* ip, __code next(...)) {
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86
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87 goto next(...);
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88 }
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89
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90 __code ilockfs_impl(struct fs_impl* fs, struct inode* ip, __code next(...)) {
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91
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92 goto next(...);
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93 }
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94
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95 __code iunlockfs_impl(struct fs_impl* fs, struct inode* ip, __code next(...)) {
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96
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97 goto next(...);
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98 }
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99
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100 __code iputfs_impl(struct fs_impl* fs, struct inode* ip, __code next(...)) {
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101
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102 goto next(...);
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103 }
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104
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105 __code iunlockputfs_impl(struct fs_impl* fs, struct inode* ip, __code next(...)) {
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106
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107 goto next(...);
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108 }
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109
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299
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110 typedef struct stat stat;
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296
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111 __code statifs_impl(struct fs_impl* fs , struct inode* ip, struct stat* st, __code next(...)) { //:skip
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294
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112
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113 goto next(...);
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114 }
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115
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116 __code readifs_impl(struct fs_impl* fs, struct inode* ip, char* dst, uint off, uint n, __code next(...)) {
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117
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118 goto next(...);
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119 }
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120
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121 __code writeifs_impl(struct fs_impl* fs, struct inode* ip, char* src, uint off, uint n, __code next(...)) {
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122
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123 goto next(...);
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124 }
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125
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126 __code namecmpfs_impl(struct fs_impl* fs, const char* s, const char* t, __code next(...)) {
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127
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128 goto next(...);
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129 }
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130
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131 __code dirlookupfs_impl(struct inode* dp, char* name, uint* poff, __code next(...)) {
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132
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133 goto next(...);
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134 }
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135
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296
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136 __code dirlinkfs_impl(struct fs_impl* fs, struct inode* dp, char* name, uint inum, __code next(...)) {
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294
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137
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296
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138 goto next(...);
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294
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139 }
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140
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141 __code nameifs_impl(struct fs_impl* fs, char* path, __code next(...)) {
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142
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143 goto next(...);
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144 }
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145
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146 __code nameiparentfs_impl(struct fs_impl* fs, char* path, char* name, __code next(...)) {
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147
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148 goto next(...);
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149 }
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150
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