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Commit | Line | Data |
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24330d27 | 1 | /* |
4bd4418a | 2 | * $RCSId: xc/lib/fontconfig/src/fccache.c,v 1.12 2002/08/22 07:36:44 keithp Exp $ |
24330d27 | 3 | * |
46b51147 | 4 | * Copyright © 2000 Keith Packard |
03a212e5 | 5 | * Copyright © 2005 Patrick Lam |
24330d27 KP |
6 | * |
7 | * Permission to use, copy, modify, distribute, and sell this software and its | |
8 | * documentation for any purpose is hereby granted without fee, provided that | |
9 | * the above copyright notice appear in all copies and that both that | |
10 | * copyright notice and this permission notice appear in supporting | |
11 | * documentation, and that the name of Keith Packard not be used in | |
12 | * advertising or publicity pertaining to distribution of the software without | |
13 | * specific, written prior permission. Keith Packard makes no | |
14 | * representations about the suitability of this software for any purpose. It | |
15 | * is provided "as is" without express or implied warranty. | |
16 | * | |
17 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
18 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
19 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
20 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
21 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
22 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR | |
23 | * PERFORMANCE OF THIS SOFTWARE. | |
24 | */ | |
25 | ||
212c9f43 | 26 | #include <fcntl.h> |
4262e0b3 | 27 | #include <dirent.h> |
212c9f43 PL |
28 | #include <sys/mman.h> |
29 | #include <sys/utsname.h> | |
fd77c154 PL |
30 | #include <sys/types.h> |
31 | #include <unistd.h> | |
24330d27 KP |
32 | #include "fcint.h" |
33 | ||
2dbe7597 PL |
34 | #define ENDIAN_TEST 0x12345678 |
35 | #define MACHINE_SIGNATURE_SIZE 9 + 5*19 + 1 | |
36 | ||
eb0cf671 PL |
37 | static off_t |
38 | FcCacheSkipToArch (int fd, const char * arch); | |
1b7be377 | 39 | |
eb0cf671 | 40 | static FcBool |
1d879de2 | 41 | FcCacheCopyOld (int fd, int fd_orig, off_t start); |
1b7be377 | 42 | |
eb0cf671 PL |
43 | static void * |
44 | FcDirCacheProduce (FcFontSet *set, FcCache * metadata); | |
1b7be377 PL |
45 | |
46 | static FcBool | |
e77c1718 | 47 | FcDirCacheConsume (int fd, const char * dir, FcFontSet *set); |
1b7be377 | 48 | |
2eb84374 | 49 | FcBool |
2304e38f | 50 | FcDirCacheRead (FcFontSet * set, FcStrSet * dirs, const FcChar8 *dir); |
1b7be377 | 51 | |
eb0cf671 PL |
52 | static int |
53 | FcCacheNextOffset(off_t w); | |
1b7be377 | 54 | |
eb0cf671 PL |
55 | static char * |
56 | FcCacheMachineSignature (void); | |
1b7be377 PL |
57 | |
58 | static FcBool | |
eb0cf671 | 59 | FcCacheHaveBank (int bank); |
1b7be377 | 60 | |
e77c1718 PL |
61 | static void |
62 | FcCacheAddBankDir (int bank, const char * dir); | |
63 | ||
eb0cf671 | 64 | #define FC_DBG_CACHE_REF 1024 |
1b7be377 | 65 | |
8245771d PL |
66 | static char * |
67 | FcCacheReadString (int fd, char *dest, int len) | |
24330d27 | 68 | { |
212c9f43 | 69 | FcChar8 c; |
ccb3e93b | 70 | FcBool escape; |
ccb3e93b KP |
71 | int size; |
72 | int i; | |
24330d27 | 73 | |
24330d27 | 74 | if (len == 0) |
03a212e5 | 75 | return 0; |
24330d27 | 76 | |
ccb3e93b KP |
77 | size = len; |
78 | i = 0; | |
24330d27 | 79 | escape = FcFalse; |
212c9f43 | 80 | while (read (fd, &c, 1) == 1) |
24330d27 KP |
81 | { |
82 | if (!escape) | |
83 | { | |
84 | switch (c) { | |
85 | case '"': | |
ccb3e93b KP |
86 | c = '\0'; |
87 | break; | |
24330d27 KP |
88 | case '\\': |
89 | escape = FcTrue; | |
90 | continue; | |
91 | } | |
92 | } | |
ccb3e93b KP |
93 | if (i == size) |
94 | { | |
212c9f43 PL |
95 | dest[i++] = 0; |
96 | return dest; | |
ccb3e93b | 97 | } |
212c9f43 | 98 | dest[i++] = c; |
ccb3e93b | 99 | if (c == '\0') |
212c9f43 | 100 | return dest; |
24330d27 KP |
101 | escape = FcFalse; |
102 | } | |
ccb3e93b | 103 | return 0; |
24330d27 KP |
104 | } |
105 | ||
106 | static FcBool | |
8245771d | 107 | FcCacheWriteString (int fd, const char *chars) |
327a7fd4 | 108 | { |
212c9f43 | 109 | if (write (fd, chars, strlen(chars)+1) != strlen(chars)+1) |
327a7fd4 | 110 | return FcFalse; |
327a7fd4 KP |
111 | return FcTrue; |
112 | } | |
113 | ||
eb0cf671 PL |
114 | static void |
115 | FcGlobalCacheDirDestroy (FcGlobalCacheDir *d) | |
1b7be377 | 116 | { |
5e678e94 PL |
117 | FcMemFree (FC_MEM_STRING, strlen (d->name)+1); |
118 | free (d->name); | |
119 | FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCacheDir)); | |
120 | free (d); | |
1b7be377 PL |
121 | } |
122 | ||
eb0cf671 PL |
123 | FcGlobalCache * |
124 | FcGlobalCacheCreate (void) | |
1b7be377 | 125 | { |
eb0cf671 | 126 | FcGlobalCache *cache; |
1b7be377 | 127 | |
eb0cf671 PL |
128 | cache = malloc (sizeof (FcGlobalCache)); |
129 | if (!cache) | |
130 | return 0; | |
131 | FcMemAlloc (FC_MEM_CACHE, sizeof (FcGlobalCache)); | |
132 | cache->dirs = 0; | |
133 | cache->updated = FcFalse; | |
134 | cache->fd = -1; | |
135 | return cache; | |
1b7be377 PL |
136 | } |
137 | ||
eb0cf671 PL |
138 | void |
139 | FcGlobalCacheDestroy (FcGlobalCache *cache) | |
327a7fd4 | 140 | { |
eb0cf671 | 141 | FcGlobalCacheDir *d, *next; |
327a7fd4 | 142 | |
eb0cf671 | 143 | for (d = cache->dirs; d; d = next) |
327a7fd4 | 144 | { |
eb0cf671 PL |
145 | next = d->next; |
146 | FcGlobalCacheDirDestroy (d); | |
327a7fd4 | 147 | } |
eb0cf671 PL |
148 | FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCache)); |
149 | free (cache); | |
327a7fd4 KP |
150 | } |
151 | ||
152 | void | |
eb0cf671 | 153 | FcGlobalCacheLoad (FcGlobalCache *cache, |
03a212e5 | 154 | FcStrSet *staleDirs, |
eb0cf671 | 155 | const FcChar8 *cache_file) |
327a7fd4 | 156 | { |
8245771d | 157 | char name_buf[8192]; |
eb0cf671 PL |
158 | FcGlobalCacheDir *d, *next; |
159 | char * current_arch_machine_name; | |
160 | char candidate_arch_machine_name[MACHINE_SIGNATURE_SIZE + 9]; | |
161 | off_t current_arch_start; | |
327a7fd4 | 162 | |
03a212e5 PL |
163 | struct stat cache_stat, dir_stat; |
164 | ||
165 | if (stat ((char *) cache_file, &cache_stat) < 0) | |
166 | return; | |
167 | ||
eb0cf671 PL |
168 | cache->fd = open ((char *) cache_file, O_RDONLY); |
169 | if (cache->fd == -1) | |
170 | return; | |
327a7fd4 | 171 | |
eb0cf671 | 172 | cache->updated = FcFalse; |
327a7fd4 | 173 | |
eb0cf671 PL |
174 | current_arch_machine_name = FcCacheMachineSignature (); |
175 | current_arch_start = FcCacheSkipToArch(cache->fd, | |
176 | current_arch_machine_name); | |
177 | if (current_arch_start < 0) | |
e58b50e8 | 178 | goto bail_and_destroy; |
327a7fd4 | 179 | |
eb0cf671 | 180 | lseek (cache->fd, current_arch_start, SEEK_SET); |
03a212e5 PL |
181 | FcCacheReadString (cache->fd, candidate_arch_machine_name, |
182 | sizeof (candidate_arch_machine_name)); | |
183 | if (strlen(candidate_arch_machine_name) == 0) | |
e58b50e8 | 184 | goto bail_and_destroy; |
1b7be377 | 185 | |
eb0cf671 | 186 | while (1) |
1b7be377 | 187 | { |
8cb4c56d PL |
188 | off_t targ; |
189 | ||
eb0cf671 PL |
190 | FcCacheReadString (cache->fd, name_buf, sizeof (name_buf)); |
191 | if (!strlen(name_buf)) | |
1b7be377 | 192 | break; |
1b7be377 | 193 | |
03a212e5 PL |
194 | if (stat ((char *) name_buf, &dir_stat) < 0 || |
195 | dir_stat.st_mtime > cache_stat.st_mtime) | |
196 | { | |
197 | FcCache md; | |
198 | ||
8245771d | 199 | FcStrSetAdd (staleDirs, FcStrCopy ((FcChar8 *)name_buf)); |
03a212e5 PL |
200 | read (cache->fd, &md, sizeof (FcCache)); |
201 | lseek (cache->fd, FcCacheNextOffset (lseek(cache->fd, 0, SEEK_CUR)) + md.count, SEEK_SET); | |
202 | continue; | |
203 | } | |
204 | ||
eb0cf671 PL |
205 | d = malloc (sizeof (FcGlobalCacheDir)); |
206 | if (!d) | |
207 | goto bail1; | |
1b7be377 | 208 | |
eb0cf671 PL |
209 | d->next = cache->dirs; |
210 | cache->dirs = d; | |
1b7be377 | 211 | |
8245771d | 212 | d->name = (char *)FcStrCopy ((FcChar8 *)name_buf); |
eb0cf671 PL |
213 | d->ent = 0; |
214 | d->offset = lseek (cache->fd, 0, SEEK_CUR); | |
8cb4c56d PL |
215 | if (read (cache->fd, &d->metadata, sizeof (FcCache)) != sizeof (FcCache)) |
216 | goto bail1; | |
217 | targ = FcCacheNextOffset (lseek(cache->fd, 0, SEEK_CUR)) + d->metadata.count; | |
218 | if (lseek (cache->fd, targ, SEEK_SET) != targ) | |
219 | goto bail1; | |
1b7be377 | 220 | } |
eb0cf671 | 221 | return; |
1b7be377 | 222 | |
eb0cf671 PL |
223 | bail1: |
224 | for (d = cache->dirs; d; d = next) | |
1b7be377 | 225 | { |
eb0cf671 PL |
226 | next = d->next; |
227 | free (d); | |
1b7be377 | 228 | } |
eb0cf671 | 229 | cache->dirs = 0; |
e58b50e8 PL |
230 | |
231 | close (cache->fd); | |
232 | cache->fd = -1; | |
233 | return; | |
234 | ||
235 | bail_and_destroy: | |
eb0cf671 PL |
236 | close (cache->fd); |
237 | cache->fd = -1; | |
e58b50e8 PL |
238 | |
239 | if (stat ((char *) cache_file, &cache_stat) == 0) | |
240 | unlink ((char *)cache_file); | |
241 | ||
eb0cf671 | 242 | return; |
e58b50e8 | 243 | |
1b7be377 PL |
244 | } |
245 | ||
1b7be377 | 246 | FcBool |
8245771d | 247 | FcGlobalCacheReadDir (FcFontSet *set, FcStrSet *dirs, FcGlobalCache * cache, const char *dir, FcConfig *config) |
1b7be377 | 248 | { |
eb0cf671 | 249 | FcGlobalCacheDir *d; |
03a212e5 | 250 | FcBool ret = FcFalse; |
1b7be377 | 251 | |
eb0cf671 | 252 | if (cache->fd == -1) |
1b7be377 | 253 | return FcFalse; |
1b7be377 | 254 | |
eb0cf671 | 255 | for (d = cache->dirs; d; d = d->next) |
1b7be377 | 256 | { |
03a212e5 | 257 | if (strncmp (d->name, dir, strlen(dir)) == 0) |
1b7be377 | 258 | { |
eb0cf671 | 259 | lseek (cache->fd, d->offset, SEEK_SET); |
e77c1718 | 260 | if (!FcDirCacheConsume (cache->fd, dir, set)) |
eb0cf671 | 261 | return FcFalse; |
03a212e5 PL |
262 | if (strcmp (d->name, dir) == 0) |
263 | ret = FcTrue; | |
1b7be377 | 264 | } |
1b7be377 | 265 | } |
1b7be377 | 266 | |
03a212e5 | 267 | return ret; |
1b7be377 PL |
268 | } |
269 | ||
eb0cf671 PL |
270 | FcBool |
271 | FcGlobalCacheUpdate (FcGlobalCache *cache, | |
8245771d | 272 | const char *name, |
eb0cf671 | 273 | FcFontSet *set) |
1b7be377 | 274 | { |
eb0cf671 | 275 | FcGlobalCacheDir * d; |
1b7be377 | 276 | |
eb0cf671 PL |
277 | if (!set->nfont) |
278 | return FcTrue; | |
1b7be377 | 279 | |
eb0cf671 | 280 | for (d = cache->dirs; d; d = d->next) |
1b7be377 | 281 | { |
eb0cf671 | 282 | if (strcmp(d->name, name) == 0) |
1b7be377 | 283 | break; |
24330d27 | 284 | } |
24330d27 | 285 | |
eb0cf671 | 286 | if (!d) |
24330d27 | 287 | { |
eb0cf671 PL |
288 | d = malloc (sizeof (FcGlobalCacheDir)); |
289 | if (!d) | |
290 | return FcFalse; | |
291 | d->next = cache->dirs; | |
292 | cache->dirs = d; | |
24330d27 | 293 | } |
24330d27 | 294 | |
eb0cf671 | 295 | cache->updated = FcTrue; |
24330d27 | 296 | |
8245771d | 297 | d->name = (char *)FcStrCopy ((FcChar8 *)name); |
eb0cf671 PL |
298 | d->ent = FcDirCacheProduce (set, &d->metadata); |
299 | d->offset = 0; | |
300 | return FcTrue; | |
24330d27 KP |
301 | } |
302 | ||
303 | FcBool | |
327a7fd4 KP |
304 | FcGlobalCacheSave (FcGlobalCache *cache, |
305 | const FcChar8 *cache_file) | |
24330d27 | 306 | { |
1d879de2 | 307 | int fd, fd_orig; |
327a7fd4 | 308 | FcGlobalCacheDir *dir; |
327a7fd4 | 309 | FcAtomic *atomic; |
eb0cf671 PL |
310 | off_t current_arch_start = 0, truncate_to; |
311 | char * current_arch_machine_name, * header; | |
24330d27 | 312 | |
eb0cf671 | 313 | if (!cache->updated) |
24330d27 KP |
314 | return FcTrue; |
315 | ||
daeed6e0 | 316 | #if defined (HAVE_GETUID) && defined (HAVE_GETEUID) |
a391da8f KP |
317 | /* Set-UID programs can't safely update the cache */ |
318 | if (getuid () != geteuid ()) | |
319 | return FcFalse; | |
daeed6e0 | 320 | #endif |
a391da8f | 321 | |
134f6011 KP |
322 | atomic = FcAtomicCreate (cache_file); |
323 | if (!atomic) | |
1d879de2 PL |
324 | return FcFalse; |
325 | ||
134f6011 | 326 | if (!FcAtomicLock (atomic)) |
24330d27 | 327 | goto bail1; |
eb0cf671 PL |
328 | fd = open ((char *) FcAtomicNewFile(atomic), O_RDWR | O_CREAT, |
329 | S_IRUSR | S_IWUSR); | |
330 | if (fd == -1) | |
24330d27 KP |
331 | goto bail2; |
332 | ||
1d879de2 PL |
333 | fd_orig = open ((char *) FcAtomicOrigFile(atomic), O_RDONLY); |
334 | ||
eb0cf671 | 335 | current_arch_machine_name = FcCacheMachineSignature (); |
1d879de2 PL |
336 | if (fd_orig == -1) |
337 | current_arch_start = 0; | |
338 | else | |
339 | current_arch_start = FcCacheSkipToArch (fd_orig, | |
340 | current_arch_machine_name); | |
341 | ||
eb0cf671 | 342 | if (current_arch_start < 0) |
649cc361 | 343 | current_arch_start = FcCacheNextOffset (lseek(fd_orig, 0, SEEK_END)); |
eb0cf671 | 344 | |
1d879de2 PL |
345 | if (!FcCacheCopyOld(fd, fd_orig, current_arch_start)) |
346 | goto bail3; | |
347 | ||
348 | close (fd_orig); | |
349 | fd_orig = -1; | |
eb0cf671 PL |
350 | |
351 | current_arch_start = lseek(fd, 0, SEEK_CUR); | |
352 | if (ftruncate (fd, current_arch_start) == -1) | |
1d879de2 | 353 | goto bail3; |
eb0cf671 | 354 | |
03a212e5 PL |
355 | header = malloc (10 + strlen (current_arch_machine_name)); |
356 | if (!header) | |
1d879de2 | 357 | goto bail3; |
03a212e5 | 358 | |
8cb4c56d | 359 | truncate_to = current_arch_start + strlen(current_arch_machine_name) + 11; |
eb0cf671 | 360 | for (dir = cache->dirs; dir; dir = dir->next) |
24330d27 | 361 | { |
eb0cf671 PL |
362 | truncate_to += strlen(dir->name) + 1; |
363 | truncate_to += sizeof (FcCache); | |
364 | truncate_to = FcCacheNextOffset (current_arch_start + truncate_to); | |
365 | truncate_to += dir->metadata.count; | |
366 | } | |
367 | truncate_to -= current_arch_start; | |
eb0cf671 | 368 | |
8cb4c56d PL |
369 | sprintf (header, "%8x ", (int)truncate_to); |
370 | strcat (header, current_arch_machine_name); | |
371 | if (!FcCacheWriteString (fd, header)) | |
1d879de2 | 372 | goto bail4; |
8cb4c56d | 373 | |
eb0cf671 PL |
374 | for (dir = cache->dirs; dir; dir = dir->next) |
375 | { | |
5e678e94 PL |
376 | if (dir->ent) |
377 | { | |
378 | FcCacheWriteString (fd, dir->name); | |
379 | write (fd, &dir->metadata, sizeof(FcCache)); | |
f6ee3db5 | 380 | lseek (fd, FcCacheNextOffset (lseek(fd, 0, SEEK_CUR)), SEEK_SET); |
5e678e94 PL |
381 | write (fd, dir->ent, dir->metadata.count); |
382 | free (dir->ent); | |
383 | } | |
24330d27 | 384 | } |
eb0cf671 | 385 | FcCacheWriteString (fd, ""); |
24330d27 | 386 | |
eb0cf671 | 387 | if (close (fd) == -1) |
1d879de2 | 388 | goto bail25; |
24330d27 | 389 | |
134f6011 | 390 | if (!FcAtomicReplaceOrig (atomic)) |
1d879de2 | 391 | goto bail25; |
24330d27 | 392 | |
134f6011 KP |
393 | FcAtomicUnlock (atomic); |
394 | FcAtomicDestroy (atomic); | |
395 | ||
24330d27 KP |
396 | cache->updated = FcFalse; |
397 | return FcTrue; | |
398 | ||
1d879de2 PL |
399 | bail4: |
400 | free (header); | |
401 | bail3: | |
402 | if (fd_orig != -1) | |
403 | close (fd_orig); | |
404 | ||
405 | close (fd); | |
406 | bail25: | |
134f6011 | 407 | FcAtomicDeleteNew (atomic); |
1d879de2 | 408 | bail2: |
134f6011 | 409 | FcAtomicUnlock (atomic); |
1d879de2 | 410 | bail1: |
134f6011 | 411 | FcAtomicDestroy (atomic); |
24330d27 KP |
412 | return FcFalse; |
413 | } | |
414 | ||
eb0cf671 | 415 | #define PAGESIZE 8192 |
212c9f43 | 416 | /* |
eb0cf671 PL |
417 | * Find the next presumably-mmapable offset after the supplied file |
418 | * position. | |
212c9f43 | 419 | */ |
4262e0b3 PL |
420 | static int |
421 | FcCacheNextOffset(off_t w) | |
179c3995 | 422 | { |
212c9f43 PL |
423 | if (w % PAGESIZE == 0) |
424 | return w; | |
425 | else | |
426 | return ((w / PAGESIZE)+1)*PAGESIZE; | |
179c3995 KP |
427 | } |
428 | ||
212c9f43 PL |
429 | /* return the address of the segment for the provided arch, |
430 | * or -1 if arch not found */ | |
431 | static off_t | |
432 | FcCacheSkipToArch (int fd, const char * arch) | |
433 | { | |
2dbe7597 PL |
434 | char candidate_arch_machine_name_count[MACHINE_SIGNATURE_SIZE + 9]; |
435 | char * candidate_arch; | |
212c9f43 PL |
436 | off_t current_arch_start = 0; |
437 | ||
438 | /* skip arches that are not the current arch */ | |
439 | while (1) | |
440 | { | |
441 | long bs; | |
442 | ||
8cb4c56d PL |
443 | if (lseek (fd, current_arch_start, SEEK_SET) != current_arch_start) |
444 | return -1; | |
445 | ||
eb0cf671 | 446 | if (FcCacheReadString (fd, candidate_arch_machine_name_count, |
2dbe7597 | 447 | sizeof (candidate_arch_machine_name_count)) == 0) |
5e678e94 | 448 | return -1; |
2dbe7597 PL |
449 | if (!strlen(candidate_arch_machine_name_count)) |
450 | return -1; | |
451 | bs = strtol(candidate_arch_machine_name_count, &candidate_arch, 16); | |
8cb4c56d | 452 | |
13cdf607 | 453 | // count = 0 should probably be distinguished from the !bs condition |
8cb4c56d PL |
454 | if (!bs || bs < strlen (candidate_arch_machine_name_count)) |
455 | return -1; | |
456 | ||
2dbe7597 | 457 | candidate_arch++; /* skip leading space */ |
212c9f43 | 458 | |
2dbe7597 | 459 | if (strcmp (candidate_arch, arch)==0) |
5e678e94 | 460 | return current_arch_start; |
212c9f43 PL |
461 | current_arch_start += bs; |
462 | } | |
463 | ||
5e678e94 | 464 | return -1; |
212c9f43 PL |
465 | } |
466 | ||
467 | /* Cuts out the segment at the file pointer (moves everything else | |
468 | * down to cover it), and leaves the file pointer at the end of the | |
469 | * file. */ | |
212c9f43 | 470 | static FcBool |
1d879de2 | 471 | FcCacheCopyOld (int fd, int fd_orig, off_t start) |
212c9f43 | 472 | { |
eb0cf671 | 473 | char * buf = malloc (8192); |
2dbe7597 | 474 | char candidate_arch_machine_name[MACHINE_SIGNATURE_SIZE + 9]; |
4262e0b3 | 475 | long bs; |
212c9f43 | 476 | int c, bytes_skipped; |
1d879de2 | 477 | off_t loc; |
212c9f43 PL |
478 | |
479 | if (!buf) | |
480 | return FcFalse; | |
481 | ||
1d879de2 PL |
482 | loc = 0; |
483 | lseek (fd, 0, SEEK_SET); lseek (fd_orig, 0, SEEK_SET); | |
484 | do | |
485 | { | |
486 | int b = 8192; | |
487 | if (loc + b > start) | |
488 | b = start - loc; | |
489 | ||
490 | if ((c = read (fd_orig, buf, b)) <= 0) | |
491 | break; | |
492 | if (write (fd, buf, c) < 0) | |
493 | goto bail; | |
494 | ||
495 | loc += c; | |
496 | } | |
497 | while (c > 0); | |
498 | ||
212c9f43 | 499 | lseek (fd, start, SEEK_SET); |
eb0cf671 | 500 | if (FcCacheReadString (fd, candidate_arch_machine_name, |
212c9f43 PL |
501 | sizeof (candidate_arch_machine_name)) == 0) |
502 | goto done; | |
2dbe7597 | 503 | if (!strlen(candidate_arch_machine_name)) |
212c9f43 PL |
504 | goto done; |
505 | ||
2dbe7597 | 506 | bs = strtol(candidate_arch_machine_name, 0, 16); |
212c9f43 PL |
507 | if (bs == 0) |
508 | goto done; | |
509 | ||
510 | bytes_skipped = 0; | |
511 | do | |
512 | { | |
513 | lseek (fd, start+bs+bytes_skipped, SEEK_SET); | |
eb0cf671 | 514 | if ((c = read (fd, buf, 8192)) <= 0) |
212c9f43 PL |
515 | break; |
516 | lseek (fd, start+bytes_skipped, SEEK_SET); | |
517 | if (write (fd, buf, c) < 0) | |
518 | goto bail; | |
519 | bytes_skipped += c; | |
520 | } | |
521 | while (c > 0); | |
522 | lseek (fd, start+bytes_skipped, SEEK_SET); | |
523 | ||
524 | done: | |
525 | free (buf); | |
526 | return FcTrue; | |
527 | ||
528 | bail: | |
529 | free (buf); | |
530 | return FcFalse; | |
531 | } | |
532 | ||
55c8fa4f | 533 | /* Does not check that the cache has the appropriate arch section. */ |
1b7be377 PL |
534 | FcBool |
535 | FcDirCacheValid (const FcChar8 *dir) | |
536 | { | |
537 | FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); | |
538 | struct stat file_stat, dir_stat; | |
539 | ||
540 | if (stat ((char *) dir, &dir_stat) < 0) | |
541 | { | |
542 | FcStrFree (cache_file); | |
543 | return FcFalse; | |
544 | } | |
545 | if (stat ((char *) cache_file, &file_stat) < 0) | |
546 | { | |
547 | FcStrFree (cache_file); | |
548 | return FcFalse; | |
549 | } | |
6bf23804 | 550 | |
55c8fa4f PL |
551 | FcStrFree (cache_file); |
552 | /* | |
553 | * If the directory has been modified more recently than | |
554 | * the cache file, the cache is not valid | |
555 | */ | |
556 | if (dir_stat.st_mtime - file_stat.st_mtime > 0) | |
557 | return FcFalse; | |
558 | return FcTrue; | |
559 | } | |
560 | ||
561 | /* Assumes that the cache file in 'dir' exists. | |
562 | * Checks that the cache has the appropriate arch section. */ | |
563 | FcBool | |
564 | FcDirCacheHasCurrentArch (const FcChar8 *dir) | |
565 | { | |
566 | FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); | |
567 | int fd; | |
568 | off_t current_arch_start; | |
569 | char *current_arch_machine_name; | |
570 | ||
6bf23804 | 571 | current_arch_machine_name = FcCacheMachineSignature(); |
55c8fa4f | 572 | fd = open ((char *)cache_file, O_RDONLY); |
6bf23804 PL |
573 | if (fd == -1) |
574 | return FcFalse; | |
575 | ||
576 | current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name); | |
577 | close (fd); | |
578 | ||
579 | if (current_arch_start < 0) | |
580 | return FcFalse; | |
55c8fa4f PL |
581 | |
582 | return FcTrue; | |
583 | } | |
6bf23804 | 584 | |
55c8fa4f PL |
585 | FcBool |
586 | FcDirCacheUnlink (const FcChar8 *dir) | |
587 | { | |
588 | FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); | |
15d7bd0a | 589 | struct stat cache_stat; |
55c8fa4f | 590 | |
15d7bd0a PL |
591 | if (stat ((char *) cache_file, &cache_stat) == 0 && |
592 | unlink ((char *)cache_file) != 0) | |
1178b569 PL |
593 | { |
594 | FcStrFree (cache_file); | |
1b7be377 | 595 | return FcFalse; |
1178b569 | 596 | } |
55c8fa4f PL |
597 | |
598 | FcStrFree (cache_file); | |
1b7be377 PL |
599 | return FcTrue; |
600 | } | |
601 | ||
4262e0b3 | 602 | static int |
1b7be377 PL |
603 | FcCacheReadDirs (FcConfig * config, FcGlobalCache * cache, |
604 | FcStrList *list, FcFontSet * set) | |
4262e0b3 | 605 | { |
4262e0b3 PL |
606 | int ret = 0; |
607 | FcChar8 *dir; | |
608 | FcChar8 *file, *base; | |
609 | FcStrSet *subdirs; | |
610 | FcStrList *sublist; | |
611 | struct stat statb; | |
612 | ||
613 | /* | |
03a212e5 | 614 | * Read in the results from 'list'. |
4262e0b3 PL |
615 | */ |
616 | while ((dir = FcStrListNext (list))) | |
617 | { | |
618 | /* freed below */ | |
619 | file = (FcChar8 *) malloc (strlen ((char *) dir) + 1 + FC_MAX_FILE_LEN + 1); | |
620 | if (!file) | |
621 | return FcFalse; | |
622 | ||
623 | strcpy ((char *) file, (char *) dir); | |
624 | strcat ((char *) file, "/"); | |
625 | base = file + strlen ((char *) file); | |
626 | ||
627 | subdirs = FcStrSetCreate (); | |
628 | if (!subdirs) | |
629 | { | |
630 | fprintf (stderr, "Can't create directory set\n"); | |
631 | ret++; | |
632 | free (file); | |
633 | continue; | |
634 | } | |
635 | ||
636 | if (access ((char *) dir, X_OK) < 0) | |
637 | { | |
638 | switch (errno) { | |
639 | case ENOENT: | |
640 | case ENOTDIR: | |
641 | case EACCES: | |
642 | break; | |
643 | default: | |
644 | fprintf (stderr, "\"%s\": ", dir); | |
645 | perror (""); | |
646 | ret++; | |
647 | } | |
648 | FcStrSetDestroy (subdirs); | |
649 | free (file); | |
650 | continue; | |
651 | } | |
652 | if (stat ((char *) dir, &statb) == -1) | |
653 | { | |
654 | fprintf (stderr, "\"%s\": ", dir); | |
655 | perror (""); | |
656 | FcStrSetDestroy (subdirs); | |
657 | ret++; | |
658 | free (file); | |
659 | continue; | |
660 | } | |
661 | if (!S_ISDIR (statb.st_mode)) | |
662 | { | |
663 | fprintf (stderr, "\"%s\": not a directory, skipping\n", dir); | |
664 | FcStrSetDestroy (subdirs); | |
665 | free (file); | |
666 | continue; | |
667 | } | |
2304e38f | 668 | if (!FcDirCacheValid (dir) || !FcDirCacheRead (set, subdirs, dir)) |
4262e0b3 | 669 | { |
1b7be377 | 670 | if (FcDebug () & FC_DBG_FONTSET) |
03a212e5 | 671 | printf ("cache scan dir %s\n", dir); |
2304e38f | 672 | |
1b7be377 PL |
673 | FcDirScanConfig (set, subdirs, cache, |
674 | config->blanks, dir, FcFalse, config); | |
4262e0b3 PL |
675 | } |
676 | sublist = FcStrListCreate (subdirs); | |
677 | FcStrSetDestroy (subdirs); | |
678 | if (!sublist) | |
679 | { | |
680 | fprintf (stderr, "Can't create subdir list in \"%s\"\n", dir); | |
681 | ret++; | |
682 | free (file); | |
683 | continue; | |
684 | } | |
1b7be377 | 685 | ret += FcCacheReadDirs (config, cache, sublist, set); |
4262e0b3 PL |
686 | free (file); |
687 | } | |
688 | FcStrListDone (list); | |
689 | return ret; | |
690 | } | |
691 | ||
692 | FcFontSet * | |
1b7be377 | 693 | FcCacheRead (FcConfig *config, FcGlobalCache * cache) |
4262e0b3 PL |
694 | { |
695 | FcFontSet * s = FcFontSetCreate(); | |
696 | if (!s) | |
697 | return 0; | |
698 | ||
1b7be377 | 699 | if (FcCacheReadDirs (config, cache, FcConfigGetConfigDirs (config), s)) |
4262e0b3 PL |
700 | goto bail; |
701 | ||
702 | return s; | |
703 | ||
704 | bail: | |
705 | FcFontSetDestroy (s); | |
706 | return 0; | |
707 | } | |
708 | ||
212c9f43 | 709 | /* read serialized state from the cache file */ |
2eb84374 | 710 | FcBool |
2304e38f | 711 | FcDirCacheRead (FcFontSet * set, FcStrSet * dirs, const FcChar8 *dir) |
212c9f43 | 712 | { |
8245771d | 713 | char *cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); |
4262e0b3 | 714 | int fd; |
212c9f43 | 715 | char * current_arch_machine_name; |
2dbe7597 | 716 | char candidate_arch_machine_name[9+MACHINE_SIGNATURE_SIZE]; |
212c9f43 | 717 | off_t current_arch_start = 0; |
8245771d | 718 | char subdirName[FC_MAX_FILE_LEN + 1 + 12 + 1]; |
212c9f43 | 719 | |
4262e0b3 PL |
720 | if (!cache_file) |
721 | goto bail; | |
212c9f43 | 722 | |
eb0cf671 | 723 | current_arch_machine_name = FcCacheMachineSignature(); |
4262e0b3 | 724 | fd = open(cache_file, O_RDONLY); |
212c9f43 | 725 | if (fd == -1) |
2dbe7597 | 726 | goto bail; |
212c9f43 | 727 | |
212c9f43 PL |
728 | current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name); |
729 | if (current_arch_start < 0) | |
4262e0b3 | 730 | goto bail1; |
212c9f43 PL |
731 | |
732 | lseek (fd, current_arch_start, SEEK_SET); | |
eb0cf671 | 733 | if (FcCacheReadString (fd, candidate_arch_machine_name, |
212c9f43 | 734 | sizeof (candidate_arch_machine_name)) == 0) |
4262e0b3 | 735 | goto bail1; |
2304e38f PL |
736 | |
737 | while (strlen(FcCacheReadString (fd, subdirName, sizeof (subdirName))) > 0) | |
8245771d | 738 | FcStrSetAdd (dirs, (FcChar8 *)subdirName); |
2304e38f | 739 | |
e77c1718 | 740 | if (!FcDirCacheConsume (fd, (const char *)dir, set)) |
eb0cf671 PL |
741 | goto bail1; |
742 | ||
743 | close(fd); | |
744 | free (cache_file); | |
745 | return FcTrue; | |
746 | ||
747 | bail1: | |
2304e38f | 748 | close (fd); |
eb0cf671 PL |
749 | bail: |
750 | free (cache_file); | |
751 | return FcFalse; | |
752 | } | |
753 | ||
754 | static FcBool | |
e77c1718 | 755 | FcDirCacheConsume (int fd, const char * dir, FcFontSet *set) |
eb0cf671 PL |
756 | { |
757 | FcCache metadata; | |
758 | void * current_dir_block; | |
fd77c154 | 759 | off_t pos; |
212c9f43 | 760 | |
212c9f43 PL |
761 | read(fd, &metadata, sizeof(FcCache)); |
762 | if (metadata.magic != FC_CACHE_MAGIC) | |
eb0cf671 | 763 | return FcFalse; |
212c9f43 | 764 | |
2dbe7597 | 765 | if (!metadata.count) |
eb0cf671 | 766 | return FcTrue; |
2dbe7597 | 767 | |
fd77c154 | 768 | pos = FcCacheNextOffset (lseek(fd, 0, SEEK_CUR)); |
2dbe7597 PL |
769 | current_dir_block = mmap (0, metadata.count, |
770 | PROT_READ, MAP_SHARED, fd, pos); | |
771 | if (current_dir_block == MAP_FAILED) | |
eb0cf671 | 772 | return FcFalse; |
2dbe7597 PL |
773 | |
774 | if (!FcFontSetUnserialize (metadata, set, current_dir_block)) | |
eb0cf671 PL |
775 | return FcFalse; |
776 | ||
e77c1718 PL |
777 | FcCacheAddBankDir (metadata.bank, dir); |
778 | ||
212c9f43 | 779 | return FcTrue; |
eb0cf671 PL |
780 | } |
781 | ||
782 | static void * | |
783 | FcDirCacheProduce (FcFontSet *set, FcCache *metadata) | |
784 | { | |
785 | void * current_dir_block, * final_dir_block; | |
8245771d | 786 | static unsigned int rand_state = 0; |
eb0cf671 PL |
787 | int bank; |
788 | ||
789 | if (!rand_state) | |
790 | rand_state = time(0L); | |
791 | bank = rand_r(&rand_state); | |
792 | ||
793 | while (FcCacheHaveBank(bank)) | |
794 | bank = rand_r(&rand_state); | |
795 | ||
796 | memset (metadata, 0, sizeof(FcCache)); | |
797 | FcFontSetNewBank(); | |
798 | metadata->count = FcFontSetNeededBytes (set); | |
799 | metadata->magic = FC_CACHE_MAGIC; | |
800 | metadata->bank = bank; | |
801 | ||
802 | if (!metadata->count) /* not a failure, no fonts to write */ | |
803 | return 0; | |
804 | ||
805 | current_dir_block = malloc (metadata->count); | |
806 | if (!current_dir_block) | |
807 | goto bail; | |
808 | final_dir_block = FcFontSetDistributeBytes (metadata, current_dir_block); | |
809 | ||
810 | if ((char *)current_dir_block + metadata->count != final_dir_block) | |
811 | goto bail; | |
812 | ||
813 | if (!FcFontSetSerialize (bank, set)) | |
814 | goto bail; | |
815 | ||
816 | return current_dir_block; | |
212c9f43 | 817 | |
4262e0b3 | 818 | bail: |
eb0cf671 PL |
819 | free (current_dir_block); |
820 | return 0; | |
212c9f43 PL |
821 | } |
822 | ||
823 | /* write serialized state to the cache file */ | |
824 | FcBool | |
2304e38f | 825 | FcDirCacheWrite (FcFontSet *set, FcStrSet *dirs, const FcChar8 *dir) |
212c9f43 | 826 | { |
4262e0b3 | 827 | FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); |
1d879de2 PL |
828 | int fd, fd_orig, i, dirs_count; |
829 | FcAtomic *atomic; | |
830 | FcCache metadata; | |
831 | off_t current_arch_start = 0, truncate_to; | |
8245771d | 832 | |
1d879de2 PL |
833 | char *current_arch_machine_name, * header; |
834 | void *current_dir_block; | |
212c9f43 | 835 | |
4262e0b3 PL |
836 | if (!cache_file) |
837 | goto bail; | |
838 | ||
eb0cf671 | 839 | current_dir_block = FcDirCacheProduce (set, &metadata); |
212c9f43 | 840 | |
a9698bed | 841 | if (metadata.count && !current_dir_block) |
1d879de2 | 842 | goto bail0; |
212c9f43 | 843 | |
4262e0b3 PL |
844 | if (FcDebug () & FC_DBG_CACHE) |
845 | printf ("FcDirCacheWriteDir cache_file \"%s\"\n", cache_file); | |
846 | ||
1d879de2 PL |
847 | atomic = FcAtomicCreate (cache_file); |
848 | if (!atomic) | |
eb0cf671 | 849 | goto bail0; |
212c9f43 | 850 | |
1d879de2 PL |
851 | if (!FcAtomicLock (atomic)) |
852 | goto bail1; | |
853 | ||
854 | fd_orig = open((char *)FcAtomicOrigFile (atomic), O_RDONLY, 0666); | |
855 | ||
856 | fd = open((char *)FcAtomicNewFile (atomic), O_RDWR | O_CREAT, 0666); | |
857 | if (fd == -1) | |
858 | goto bail2; | |
859 | ||
eb0cf671 | 860 | current_arch_machine_name = FcCacheMachineSignature (); |
1d879de2 PL |
861 | current_arch_start = 0; |
862 | ||
863 | if (fd_orig != -1) | |
864 | current_arch_start = | |
865 | FcCacheSkipToArch(fd_orig, current_arch_machine_name); | |
866 | ||
212c9f43 | 867 | if (current_arch_start < 0) |
649cc361 | 868 | current_arch_start = FcCacheNextOffset (lseek(fd_orig, 0, SEEK_END)); |
212c9f43 | 869 | |
1d879de2 PL |
870 | if (fd_orig != -1 && !FcCacheCopyOld(fd, fd_orig, current_arch_start)) |
871 | goto bail3; | |
872 | ||
873 | if (fd_orig != -1) | |
874 | close (fd_orig); | |
212c9f43 PL |
875 | |
876 | current_arch_start = lseek(fd, 0, SEEK_CUR); | |
877 | if (ftruncate (fd, current_arch_start) == -1) | |
1d879de2 | 878 | goto bail3; |
212c9f43 | 879 | |
6aee8c6f PL |
880 | /* allocate space for subdir names in this block */ |
881 | dirs_count = 0; | |
882 | for (i = 0; i < dirs->size; i++) | |
883 | dirs_count += strlen((char *)dirs->strs[i]) + 1; | |
884 | dirs_count ++; | |
885 | ||
212c9f43 | 886 | /* now write the address of the next offset */ |
6aee8c6f | 887 | truncate_to = FcCacheNextOffset (FcCacheNextOffset (current_arch_start + sizeof (FcCache) + dirs_count) + metadata.count) - current_arch_start; |
2dbe7597 | 888 | header = malloc (10 + strlen (current_arch_machine_name)); |
eb0cf671 | 889 | if (!header) |
1d879de2 | 890 | goto bail3; |
2dbe7597 PL |
891 | sprintf (header, "%8x ", (int)truncate_to); |
892 | strcat (header, current_arch_machine_name); | |
eb0cf671 | 893 | if (!FcCacheWriteString (fd, header)) |
1d879de2 | 894 | goto bail4; |
212c9f43 | 895 | |
2304e38f | 896 | for (i = 0; i < dirs->size; i++) |
8245771d | 897 | FcCacheWriteString (fd, (char *)dirs->strs[i]); |
2304e38f PL |
898 | FcCacheWriteString (fd, ""); |
899 | ||
4262e0b3 | 900 | write (fd, &metadata, sizeof(FcCache)); |
a9698bed PL |
901 | if (metadata.count) |
902 | { | |
903 | lseek (fd, FcCacheNextOffset (lseek(fd, 0, SEEK_END)), SEEK_SET); | |
904 | write (fd, current_dir_block, metadata.count); | |
905 | free (current_dir_block); | |
906 | } | |
4262e0b3 | 907 | |
2dbe7597 | 908 | /* this actually serves to pad out the cache file, if needed */ |
212c9f43 | 909 | if (ftruncate (fd, current_arch_start + truncate_to) == -1) |
1d879de2 | 910 | goto bail4; |
212c9f43 PL |
911 | |
912 | close(fd); | |
1d879de2 PL |
913 | if (!FcAtomicReplaceOrig(atomic)) |
914 | goto bail4; | |
915 | FcAtomicUnlock (atomic); | |
916 | FcAtomicDestroy (atomic); | |
212c9f43 PL |
917 | return FcTrue; |
918 | ||
1d879de2 | 919 | bail4: |
0230c9f8 | 920 | free (header); |
1d879de2 PL |
921 | bail3: |
922 | close (fd); | |
923 | bail2: | |
924 | FcAtomicUnlock (atomic); | |
925 | bail1: | |
926 | FcAtomicDestroy (atomic); | |
eb0cf671 | 927 | bail0: |
8245771d | 928 | unlink ((char *)cache_file); |
4262e0b3 | 929 | free (cache_file); |
1d879de2 PL |
930 | if (current_dir_block) |
931 | free (current_dir_block); | |
932 | bail: | |
212c9f43 PL |
933 | return FcFalse; |
934 | } | |
935 | ||
2dbe7597 | 936 | static char * |
eb0cf671 | 937 | FcCacheMachineSignature () |
2dbe7597 PL |
938 | { |
939 | static char buf[MACHINE_SIGNATURE_SIZE]; | |
940 | int magic = ENDIAN_TEST; | |
941 | char * m = (char *)&magic; | |
942 | ||
943 | sprintf (buf, "%2x%2x%2x%2x " | |
944 | "%4x %4x %4x %4x %4x %4x %4x %4x %4x %4x %4x %4x " | |
945 | "%4x %4x %4x %4x %4x %4x %4x\n", | |
946 | m[0], m[1], m[2], m[3], | |
cd310911 PL |
947 | (unsigned int)sizeof (char), |
948 | (unsigned int)sizeof (char *), | |
949 | (unsigned int)sizeof (int), | |
950 | (unsigned int)sizeof (FcPattern), | |
951 | (unsigned int)sizeof (FcPatternEltPtr), | |
952 | (unsigned int)sizeof (struct _FcPatternElt *), | |
953 | (unsigned int)sizeof (FcPatternElt), | |
954 | (unsigned int)sizeof (FcObjectPtr), | |
955 | (unsigned int)sizeof (FcValueListPtr), | |
956 | (unsigned int)sizeof (FcValue), | |
957 | (unsigned int)sizeof (FcValueBinding), | |
958 | (unsigned int)sizeof (struct _FcValueList *), | |
959 | (unsigned int)sizeof (FcCharSet), | |
960 | (unsigned int)sizeof (FcCharLeaf **), | |
961 | (unsigned int)sizeof (FcChar16 *), | |
962 | (unsigned int)sizeof (FcChar16), | |
963 | (unsigned int)sizeof (FcCharLeaf), | |
964 | (unsigned int)sizeof (FcChar32), | |
965 | (unsigned int)sizeof (FcCache)); | |
2dbe7597 PL |
966 | |
967 | return buf; | |
968 | } | |
969 | ||
4262e0b3 | 970 | static int banks_ptr = 0, banks_alloc = 0; |
751932dd | 971 | static int * bankId = 0, * bankIdx = 0; |
e77c1718 | 972 | static const char ** bankDirs = 0; |
4262e0b3 | 973 | |
eb0cf671 | 974 | static FcBool |
4262e0b3 PL |
975 | FcCacheHaveBank (int bank) |
976 | { | |
977 | int i; | |
978 | ||
979 | if (bank < FC_BANK_FIRST) | |
980 | return FcTrue; | |
981 | ||
982 | for (i = 0; i < banks_ptr; i++) | |
983 | if (bankId[i] == bank) | |
984 | return FcTrue; | |
985 | ||
986 | return FcFalse; | |
987 | } | |
988 | ||
989 | int | |
990 | FcCacheBankToIndex (int bank) | |
991 | { | |
751932dd | 992 | int i, j; |
4262e0b3 PL |
993 | |
994 | for (i = 0; i < banks_ptr; i++) | |
751932dd PL |
995 | if (bankId[bankIdx[i]] == bank) |
996 | { | |
997 | int t = bankIdx[i]; | |
998 | ||
999 | for (j = i; j > 0; j--) | |
1000 | bankIdx[j] = bankIdx[j-1]; | |
1001 | bankIdx[0] = t; | |
1002 | return t; | |
1003 | } | |
4262e0b3 | 1004 | |
2dbe7597 | 1005 | if (banks_ptr >= banks_alloc) |
4262e0b3 | 1006 | { |
751932dd | 1007 | int * b, * bidx; |
e77c1718 PL |
1008 | const char ** bds; |
1009 | ||
2dbe7597 | 1010 | b = realloc (bankId, (banks_alloc + 4) * sizeof(int)); |
4262e0b3 PL |
1011 | if (!b) |
1012 | return -1; | |
4262e0b3 | 1013 | bankId = b; |
751932dd PL |
1014 | |
1015 | bidx = realloc (bankIdx, (banks_alloc + 4) * sizeof(int)); | |
1016 | if (!bidx) | |
1017 | return -1; | |
1018 | bankIdx = bidx; | |
1019 | ||
e77c1718 PL |
1020 | bds = realloc (bankDirs, (banks_alloc + 4) * sizeof (char *)); |
1021 | if (!bds) | |
1022 | return -1; | |
1023 | bankDirs = bds; | |
1024 | ||
4262e0b3 PL |
1025 | banks_alloc += 4; |
1026 | } | |
1027 | ||
1028 | i = banks_ptr++; | |
1029 | bankId[i] = bank; | |
751932dd | 1030 | bankIdx[i] = i; |
4262e0b3 PL |
1031 | return i; |
1032 | } | |
e77c1718 PL |
1033 | |
1034 | static void | |
1035 | FcCacheAddBankDir (int bank, const char * dir) | |
1036 | { | |
1037 | int bi = FcCacheBankToIndex (bank); | |
1038 | ||
1039 | if (bi < 0) | |
1040 | return; | |
1041 | ||
1042 | bankDirs[bi] = (const char *)FcStrCopy ((FcChar8 *)dir); | |
1043 | } | |
1044 | ||
1045 | const char * | |
1046 | FcCacheFindBankDir (int bank) | |
1047 | { | |
1048 | int bi = FcCacheBankToIndex (bank); | |
1049 | return bankDirs[bi]; | |
1050 | } | |
1051 |