diff options
Diffstat (limited to 'nx-X11/extras/fontconfig/src/fccache.c')
| -rw-r--r-- | nx-X11/extras/fontconfig/src/fccache.c | 1168 |
1 files changed, 0 insertions, 1168 deletions
diff --git a/nx-X11/extras/fontconfig/src/fccache.c b/nx-X11/extras/fontconfig/src/fccache.c deleted file mode 100644 index 28455430a..000000000 --- a/nx-X11/extras/fontconfig/src/fccache.c +++ /dev/null @@ -1,1168 +0,0 @@ -/* - * $RCSId: xc/lib/fontconfig/src/fccache.c,v 1.12 2002/08/22 07:36:44 keithp Exp $ - * - * Copyright © 2000 Keith Packard - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of Keith Packard not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. Keith Packard makes no - * representations about the suitability of this software for any purpose. It - * is provided "as is" without express or implied warranty. - * - * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -#include "fcint.h" - -/* - * POSIX has broken stdio so that getc must do thread-safe locking, - * this is a serious performance problem for applications doing large - * amounts of IO with getc (as is done here). If available, use - * the getc_unlocked varient instead. - */ - -#if defined(getc_unlocked) || defined(_IO_getc_unlocked) -#define GETC(f) getc_unlocked(f) -#define PUTC(c,f) putc_unlocked(c,f) -#else -#define GETC(f) getc(f) -#define PUTC(c,f) putc(c,f) -#endif - -#define FC_DBG_CACHE_REF 1024 - -static FcChar8 * -FcCacheReadString (FILE *f, FcChar8 *dest, int len) -{ - int c; - FcBool escape; - FcChar8 *d; - int size; - int i; - - while ((c = GETC (f)) != EOF) - if (c == '"') - break; - if (c == EOF) - return FcFalse; - if (len == 0) - return FcFalse; - - size = len; - i = 0; - d = dest; - escape = FcFalse; - while ((c = GETC (f)) != EOF) - { - if (!escape) - { - switch (c) { - case '"': - c = '\0'; - break; - case '\\': - escape = FcTrue; - continue; - } - } - if (i == size) - { - FcChar8 *new = malloc (size * 2); /* freed in caller */ - if (!new) - break; - memcpy (new, d, size); - size *= 2; - if (d != dest) - free (d); - d = new; - } - d[i++] = c; - if (c == '\0') - return d; - escape = FcFalse; - } - if (d != dest) - free (d); - return 0; -} - -static FcBool -FcCacheReadUlong (FILE *f, unsigned long *dest) -{ - unsigned long t; - int c; - - while ((c = GETC (f)) != EOF) - { - if (!isspace (c)) - break; - } - if (c == EOF) - return FcFalse; - t = 0; - for (;;) - { - if (c == EOF || isspace (c)) - break; - if (!isdigit (c)) - return FcFalse; - t = t * 10 + (c - '0'); - c = GETC (f); - } - *dest = t; - return FcTrue; -} - -static FcBool -FcCacheReadInt (FILE *f, int *dest) -{ - unsigned long t; - FcBool ret; - - ret = FcCacheReadUlong (f, &t); - if (ret) - *dest = (int) t; - return ret; -} - -static FcBool -FcCacheReadTime (FILE *f, time_t *dest) -{ - unsigned long t; - FcBool ret; - - ret = FcCacheReadUlong (f, &t); - if (ret) - *dest = (time_t) t; - return ret; -} - -static FcBool -FcCacheWriteChars (FILE *f, const FcChar8 *chars) -{ - FcChar8 c; - while ((c = *chars++)) - { - switch (c) { - case '"': - case '\\': - if (PUTC ('\\', f) == EOF) - return FcFalse; - /* fall through */ - default: - if (PUTC (c, f) == EOF) - return FcFalse; - } - } - return FcTrue; -} - -static FcBool -FcCacheWriteString (FILE *f, const FcChar8 *string) -{ - - if (PUTC ('"', f) == EOF) - return FcFalse; - if (!FcCacheWriteChars (f, string)) - return FcFalse; - if (PUTC ('"', f) == EOF) - return FcFalse; - return FcTrue; -} - -static FcBool -FcCacheWritePath (FILE *f, const FcChar8 *dir, const FcChar8 *file) -{ - if (PUTC ('"', f) == EOF) - return FcFalse; - if (dir) - if (!FcCacheWriteChars (f, dir)) - return FcFalse; -#ifdef _WIN32 - if (dir && - dir[strlen((const char *) dir) - 1] != '/' && - dir[strlen((const char *) dir) - 1] != '\\') - { - if (!FcCacheWriteChars (f, "\\")) - return FcFalse; - } -#else - if (dir && dir[strlen((const char *) dir) - 1] != '/') - if (PUTC ('/', f) == EOF) - return FcFalse; -#endif - if (!FcCacheWriteChars (f, file)) - return FcFalse; - if (PUTC ('"', f) == EOF) - return FcFalse; - return FcTrue; -} - -static FcBool -FcCacheWriteUlong (FILE *f, unsigned long t) -{ - int pow; - unsigned long temp, digit; - - temp = t; - pow = 1; - while (temp >= 10) - { - temp /= 10; - pow *= 10; - } - temp = t; - while (pow) - { - digit = temp / pow; - if (PUTC ((char) digit + '0', f) == EOF) - return FcFalse; - temp = temp - pow * digit; - pow = pow / 10; - } - return FcTrue; -} - -static FcBool -FcCacheWriteInt (FILE *f, int i) -{ - return FcCacheWriteUlong (f, (unsigned long) i); -} - -static FcBool -FcCacheWriteTime (FILE *f, time_t t) -{ - return FcCacheWriteUlong (f, (unsigned long) t); -} - -static FcBool -FcCacheFontSetAdd (FcFontSet *set, - FcStrSet *dirs, - const FcChar8 *dir, - int dir_len, - const FcChar8 *file, - const FcChar8 *name, - FcConfig *config) -{ - FcChar8 path_buf[8192], *path; - int len; - FcBool ret = FcFalse; - FcPattern *font; - FcPattern *frozen; - - path = path_buf; - len = (dir_len + 1 + strlen ((const char *) file) + 1); - if (len > sizeof (path_buf)) - { - path = malloc (len); /* freed down below */ - if (!path) - return FcFalse; - } - strncpy ((char *) path, (const char *) dir, dir_len); -#ifdef _WIN32 - if (dir[dir_len - 1] != '/' && dir[dir_len - 1] != '\\' ) - path[dir_len++] = '\\'; -#else - if (dir[dir_len - 1] != '/') - path[dir_len++] = '/'; -#endif - strcpy ((char *) path + dir_len, (const char *) file); - if (config && !FcConfigAcceptFilename (config, path)) - ret = FcTrue; - else if (!FcStrCmp (name, FC_FONT_FILE_DIR)) - { - if (FcDebug () & FC_DBG_CACHEV) - printf (" dir cache dir \"%s\"\n", path); - ret = FcStrSetAdd (dirs, path); - } - else if (!FcStrCmp (name, FC_FONT_FILE_INVALID)) - { - ret = FcTrue; - } - else - { - font = FcNameParse (name); - if (font) - { - FcChar8 *family; - - if (FcDebug () & FC_DBG_CACHEV) - printf (" dir cache file \"%s\"\n", file); - ret = FcPatternAddString (font, FC_FILE, path); - /* - * Make sure the pattern has the file name as well as - * already containing at least one family name. - */ - if (ret && - FcPatternGetString (font, FC_FAMILY, 0, &family) == FcResultMatch && - (!config || FcConfigAcceptFont (config, font))) - { - frozen = FcPatternFreeze (font); - ret = (frozen != 0); - if (ret) - ret = FcFontSetAdd (set, frozen); - } - FcPatternDestroy (font); - } - } - if (path != path_buf) free (path); - return ret; - -} - -static unsigned int -FcCacheHash (const FcChar8 *string, int len) -{ - unsigned int h = 0; - FcChar8 c; - - while (len-- && (c = *string++)) - h = (h << 1) ^ c; - return h; -} - -/* - * Verify the saved timestamp for a file - */ -FcBool -FcGlobalCacheCheckTime (const FcChar8 *file, FcGlobalCacheInfo *info) -{ - struct stat statb; - - if (stat ((char *) file, &statb) < 0) - { - if (FcDebug () & FC_DBG_CACHE) - printf (" file %s missing\n", file); - return FcFalse; - } - if (statb.st_mtime != info->time) - { - if (FcDebug () & FC_DBG_CACHE) - printf (" timestamp mismatch (was %d is %d)\n", - (int) info->time, (int) statb.st_mtime); - return FcFalse; - } - return FcTrue; -} - -void -FcGlobalCacheReferenced (FcGlobalCache *cache, - FcGlobalCacheInfo *info) -{ - if (!info->referenced) - { - info->referenced = FcTrue; - cache->referenced++; - if (FcDebug () & FC_DBG_CACHE_REF) - printf ("Reference %d %s\n", cache->referenced, info->file); - } -} - -/* - * Break a path into dir/base elements and compute the base hash - * and the dir length. This is shared between the functions - * which walk the file caches - */ - -typedef struct _FcFilePathInfo { - const FcChar8 *dir; - int dir_len; - const FcChar8 *base; - unsigned int base_hash; -} FcFilePathInfo; - -static FcFilePathInfo -FcFilePathInfoGet (const FcChar8 *path) -{ - FcFilePathInfo i; - FcChar8 *slash; - - slash = FcStrLastSlash (path); - if (slash) - { - i.dir = path; - i.dir_len = slash - path; - if (!i.dir_len) - i.dir_len = 1; - i.base = slash + 1; - } - else - { - i.dir = (const FcChar8 *) "."; - i.dir_len = 1; - i.base = path; - } - i.base_hash = FcCacheHash (i.base, -1); - return i; -} - -FcGlobalCacheDir * -FcGlobalCacheDirGet (FcGlobalCache *cache, - const FcChar8 *dir, - int len, - FcBool create_missing) -{ - unsigned int hash = FcCacheHash (dir, len); - FcGlobalCacheDir *d, **prev; - - for (prev = &cache->ents[hash % FC_GLOBAL_CACHE_DIR_HASH_SIZE]; - (d = *prev); - prev = &(*prev)->next) - { - if (d->info.hash == hash && d->len == len && - !strncmp ((const char *) d->info.file, - (const char *) dir, len)) - break; - } - if (!(d = *prev)) - { - int i; - if (!create_missing) - return 0; - d = malloc (sizeof (FcGlobalCacheDir) + len + 1); - if (!d) - return 0; - FcMemAlloc (FC_MEM_CACHE, sizeof (FcGlobalCacheDir) + len + 1); - d->next = *prev; - *prev = d; - d->info.hash = hash; - d->info.file = (FcChar8 *) (d + 1); - strncpy ((char *) d->info.file, (const char *) dir, len); - d->info.file[len] = '\0'; - d->info.time = 0; - d->info.referenced = FcFalse; - d->len = len; - for (i = 0; i < FC_GLOBAL_CACHE_FILE_HASH_SIZE; i++) - d->ents[i] = 0; - d->subdirs = 0; - } - return d; -} - -static FcGlobalCacheInfo * -FcGlobalCacheDirAdd (FcGlobalCache *cache, - const FcChar8 *dir, - time_t time, - FcBool replace, - FcBool create_missing) -{ - FcGlobalCacheDir *d; - FcFilePathInfo i; - FcGlobalCacheSubdir *subdir; - FcGlobalCacheDir *parent; - - i = FcFilePathInfoGet (dir); - parent = FcGlobalCacheDirGet (cache, i.dir, i.dir_len, create_missing); - /* - * Tricky here -- directories containing fonts.cache-1 files - * need entries only when the parent doesn't have a cache file. - * That is, when the parent already exists in the cache, is - * referenced and has a "real" timestamp. The time of 0 is - * special and marks directories which got stuck in the - * global cache for this very reason. Yes, it could - * use a separate boolean field, and probably should. - */ - if (!parent || (!create_missing && - (!parent->info.referenced || - (parent->info.time == 0)))) - return 0; - /* - * Add this directory to the cache - */ - d = FcGlobalCacheDirGet (cache, dir, strlen ((const char *) dir), FcTrue); - if (!d) - return 0; - d->info.time = time; - /* - * Add this directory to the subdirectory list of the parent - */ - subdir = malloc (sizeof (FcGlobalCacheSubdir)); - if (!subdir) - return 0; - FcMemAlloc (FC_MEM_CACHE, sizeof (FcGlobalCacheSubdir)); - subdir->ent = d; - subdir->next = parent->subdirs; - parent->subdirs = subdir; - return &d->info; -} - -static void -FcGlobalCacheDirDestroy (FcGlobalCacheDir *d) -{ - FcGlobalCacheFile *f, *next; - int h; - FcGlobalCacheSubdir *s, *nexts; - - for (h = 0; h < FC_GLOBAL_CACHE_FILE_HASH_SIZE; h++) - for (f = d->ents[h]; f; f = next) - { - next = f->next; - FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCacheFile) + - strlen ((char *) f->info.file) + 1 + - strlen ((char *) f->name) + 1); - free (f); - } - for (s = d->subdirs; s; s = nexts) - { - nexts = s->next; - FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCacheSubdir)); - free (s); - } - FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCacheDir) + d->len + 1); - free (d); -} - -/* - * If the parent is in the global cache and referenced, add - * an entry for 'dir' to the global cache. This is used - * for directories with fonts.cache files - */ - -void -FcGlobalCacheReferenceSubdir (FcGlobalCache *cache, - const FcChar8 *dir) -{ - FcGlobalCacheInfo *info; - info = FcGlobalCacheDirAdd (cache, dir, 0, FcFalse, FcFalse); - if (info && !info->referenced) - { - info->referenced = FcTrue; - cache->referenced++; - } -} - -/* - * Check to see if the global cache contains valid data for 'dir'. - * If so, scan the global cache for files and directories in 'dir'. - * else, return False. - */ -FcBool -FcGlobalCacheScanDir (FcFontSet *set, - FcStrSet *dirs, - FcGlobalCache *cache, - const FcChar8 *dir, - FcConfig *config) -{ - FcGlobalCacheDir *d = FcGlobalCacheDirGet (cache, dir, - strlen ((const char *) dir), - FcFalse); - FcGlobalCacheFile *f; - int h; - int dir_len; - FcGlobalCacheSubdir *subdir; - FcBool any_in_cache = FcFalse; - - if (FcDebug() & FC_DBG_CACHE) - printf ("FcGlobalCacheScanDir %s\n", dir); - - if (!d) - { - if (FcDebug () & FC_DBG_CACHE) - printf ("\tNo dir cache entry\n"); - return FcFalse; - } - - /* - * See if the timestamp recorded in the global cache - * matches the directory time, if not, return False - */ - if (!FcGlobalCacheCheckTime (d->info.file, &d->info)) - { - if (FcDebug () & FC_DBG_CACHE) - printf ("\tdir cache entry time mismatch\n"); - return FcFalse; - } - - /* - * Add files from 'dir' to the fontset - */ - dir_len = strlen ((const char *) dir); - for (h = 0; h < FC_GLOBAL_CACHE_FILE_HASH_SIZE; h++) - for (f = d->ents[h]; f; f = f->next) - { - if (FcDebug() & FC_DBG_CACHEV) - printf ("FcGlobalCacheScanDir add file %s\n", f->info.file); - any_in_cache = FcTrue; - if (!FcCacheFontSetAdd (set, dirs, dir, dir_len, - f->info.file, f->name, config)) - { - cache->broken = FcTrue; - return FcFalse; - } - FcGlobalCacheReferenced (cache, &f->info); - } - /* - * Add directories in 'dir' to 'dirs' - */ - for (subdir = d->subdirs; subdir; subdir = subdir->next) - { - FcFilePathInfo info = FcFilePathInfoGet (subdir->ent->info.file); - - any_in_cache = FcTrue; - if (!FcCacheFontSetAdd (set, dirs, dir, dir_len, - info.base, FC_FONT_FILE_DIR, config)) - { - cache->broken = FcTrue; - return FcFalse; - } - FcGlobalCacheReferenced (cache, &subdir->ent->info); - } - - FcGlobalCacheReferenced (cache, &d->info); - - /* - * To recover from a bug in previous versions of fontconfig, - * return FcFalse if no entries in the cache were found - * for this directory. This will cause any empty directories - * to get rescanned every time fontconfig is initialized. This - * might get removed at some point when the older cache files are - * presumably fixed. - */ - return any_in_cache; -} - -/* - * Locate the cache entry for a particular file - */ -FcGlobalCacheFile * -FcGlobalCacheFileGet (FcGlobalCache *cache, - const FcChar8 *file, - int id, - int *count) -{ - FcFilePathInfo i = FcFilePathInfoGet (file); - FcGlobalCacheDir *d = FcGlobalCacheDirGet (cache, i.dir, - i.dir_len, FcFalse); - FcGlobalCacheFile *f, *match = 0; - int max = -1; - - if (!d) - return 0; - for (f = d->ents[i.base_hash % FC_GLOBAL_CACHE_FILE_HASH_SIZE]; f; f = f->next) - { - if (f->info.hash == i.base_hash && - !strcmp ((const char *) f->info.file, (const char *) i.base)) - { - if (f->id == id) - match = f; - if (f->id > max) - max = f->id; - } - } - if (count) - *count = max + 1; - return match; -} - -/* - * Add a file entry to the cache - */ -static FcGlobalCacheInfo * -FcGlobalCacheFileAdd (FcGlobalCache *cache, - const FcChar8 *path, - int id, - time_t time, - const FcChar8 *name, - FcBool replace) -{ - FcFilePathInfo i = FcFilePathInfoGet (path); - FcGlobalCacheDir *d = FcGlobalCacheDirGet (cache, i.dir, - i.dir_len, FcTrue); - FcGlobalCacheFile *f, **prev; - int size; - - if (!d) - return 0; - for (prev = &d->ents[i.base_hash % FC_GLOBAL_CACHE_FILE_HASH_SIZE]; - (f = *prev); - prev = &(*prev)->next) - { - if (f->info.hash == i.base_hash && - f->id == id && - !strcmp ((const char *) f->info.file, (const char *) i.base)) - { - break; - } - } - if (*prev) - { - if (!replace) - return 0; - - f = *prev; - if (f->info.referenced) - cache->referenced--; - *prev = f->next; - FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCacheFile) + - strlen ((char *) f->info.file) + 1 + - strlen ((char *) f->name) + 1); - free (f); - } - size = (sizeof (FcGlobalCacheFile) + - strlen ((char *) i.base) + 1 + - strlen ((char *) name) + 1); - f = malloc (size); - if (!f) - return 0; - FcMemAlloc (FC_MEM_CACHE, size); - f->next = *prev; - *prev = f; - f->info.hash = i.base_hash; - f->info.file = (FcChar8 *) (f + 1); - f->info.time = time; - f->info.referenced = FcFalse; - f->id = id; - f->name = f->info.file + strlen ((char *) i.base) + 1; - strcpy ((char *) f->info.file, (const char *) i.base); - strcpy ((char *) f->name, (const char *) name); - return &f->info; -} - -FcGlobalCache * -FcGlobalCacheCreate (void) -{ - FcGlobalCache *cache; - int h; - - cache = malloc (sizeof (FcGlobalCache)); - if (!cache) - return 0; - FcMemAlloc (FC_MEM_CACHE, sizeof (FcGlobalCache)); - for (h = 0; h < FC_GLOBAL_CACHE_DIR_HASH_SIZE; h++) - cache->ents[h] = 0; - cache->entries = 0; - cache->referenced = 0; - cache->updated = FcFalse; - cache->broken = FcFalse; - return cache; -} - -void -FcGlobalCacheDestroy (FcGlobalCache *cache) -{ - FcGlobalCacheDir *d, *next; - int h; - - for (h = 0; h < FC_GLOBAL_CACHE_DIR_HASH_SIZE; h++) - { - for (d = cache->ents[h]; d; d = next) - { - next = d->next; - FcGlobalCacheDirDestroy (d); - } - } - FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCache)); - free (cache); -} - -/* - * Cache file syntax is quite simple: - * - * "file_name" id time "font_name" \n - */ - -void -FcGlobalCacheLoad (FcGlobalCache *cache, - const FcChar8 *cache_file) -{ - FILE *f; - FcChar8 file_buf[8192], *file; - int id; - time_t time; - FcChar8 name_buf[8192], *name; - FcGlobalCacheInfo *info; - - f = fopen ((char *) cache_file, "r"); - if (!f) - return; - - cache->updated = FcFalse; - file = 0; - name = 0; - while ((file = FcCacheReadString (f, file_buf, sizeof (file_buf))) && - FcCacheReadInt (f, &id) && - FcCacheReadTime (f, &time) && - (name = FcCacheReadString (f, name_buf, sizeof (name_buf)))) - { - if (FcDebug () & FC_DBG_CACHEV) - printf ("FcGlobalCacheLoad \"%s\" \"%20.20s\"\n", file, name); - if (!FcStrCmp (name, FC_FONT_FILE_DIR)) - info = FcGlobalCacheDirAdd (cache, file, time, FcFalse, FcTrue); - else - info = FcGlobalCacheFileAdd (cache, file, id, time, name, FcFalse); - if (!info) - cache->broken = FcTrue; - else - cache->entries++; - if (FcDebug () & FC_DBG_CACHE_REF) - printf ("FcGlobalCacheLoad entry %d %s\n", - cache->entries, file); - if (file != file_buf) - free (file); - if (name != name_buf) - free (name); - file = 0; - name = 0; - } - if (file && file != file_buf) - free (file); - if (name && name != name_buf) - free (name); - fclose (f); -} - -FcBool -FcGlobalCacheUpdate (FcGlobalCache *cache, - const FcChar8 *file, - int id, - const FcChar8 *name) -{ - const FcChar8 *match; - struct stat statb; - FcGlobalCacheInfo *info; - - match = file; - - if (stat ((char *) file, &statb) < 0) - return FcFalse; - if (S_ISDIR (statb.st_mode)) - info = FcGlobalCacheDirAdd (cache, file, statb.st_mtime, - FcTrue, FcTrue); - else - info = FcGlobalCacheFileAdd (cache, file, id, statb.st_mtime, - name, FcTrue); - if (info) - { - FcGlobalCacheReferenced (cache, info); - cache->updated = FcTrue; - } - else - cache->broken = FcTrue; - return info != 0; -} - -FcBool -FcGlobalCacheSave (FcGlobalCache *cache, - const FcChar8 *cache_file) -{ - FILE *f; - int dir_hash, file_hash; - FcGlobalCacheDir *dir; - FcGlobalCacheFile *file; - FcAtomic *atomic; - - if (!cache->updated && cache->referenced == cache->entries) - return FcTrue; - - if (cache->broken) - return FcFalse; - -#if defined (HAVE_GETUID) && defined (HAVE_GETEUID) - /* Set-UID programs can't safely update the cache */ - if (getuid () != geteuid ()) - return FcFalse; -#endif - - atomic = FcAtomicCreate (cache_file); - if (!atomic) - goto bail0; - if (!FcAtomicLock (atomic)) - goto bail1; - f = fopen ((char *) FcAtomicNewFile(atomic), "w"); - if (!f) - goto bail2; - - for (dir_hash = 0; dir_hash < FC_GLOBAL_CACHE_DIR_HASH_SIZE; dir_hash++) - { - for (dir = cache->ents[dir_hash]; dir; dir = dir->next) - { - if (!dir->info.referenced) - continue; - if (!FcCacheWriteString (f, dir->info.file)) - goto bail4; - if (PUTC (' ', f) == EOF) - goto bail4; - if (!FcCacheWriteInt (f, 0)) - goto bail4; - if (PUTC (' ', f) == EOF) - goto bail4; - if (!FcCacheWriteTime (f, dir->info.time)) - goto bail4; - if (PUTC (' ', f) == EOF) - goto bail4; - if (!FcCacheWriteString (f, (FcChar8 *) FC_FONT_FILE_DIR)) - goto bail4; - if (PUTC ('\n', f) == EOF) - goto bail4; - - for (file_hash = 0; file_hash < FC_GLOBAL_CACHE_FILE_HASH_SIZE; file_hash++) - { - for (file = dir->ents[file_hash]; file; file = file->next) - { - if (!file->info.referenced) - continue; - if (!FcCacheWritePath (f, dir->info.file, file->info.file)) - goto bail4; - if (PUTC (' ', f) == EOF) - goto bail4; - if (!FcCacheWriteInt (f, file->id < 0 ? 0 : file->id)) - goto bail4; - if (PUTC (' ', f) == EOF) - goto bail4; - if (!FcCacheWriteTime (f, file->info.time)) - goto bail4; - if (PUTC (' ', f) == EOF) - goto bail4; - if (!FcCacheWriteString (f, file->name)) - goto bail4; - if (PUTC ('\n', f) == EOF) - goto bail4; - } - } - } - } - - if (fclose (f) == EOF) - goto bail3; - - if (!FcAtomicReplaceOrig (atomic)) - goto bail3; - - FcAtomicUnlock (atomic); - FcAtomicDestroy (atomic); - - cache->updated = FcFalse; - return FcTrue; - -bail4: - fclose (f); -bail3: - FcAtomicDeleteNew (atomic); -bail2: - FcAtomicUnlock (atomic); -bail1: - FcAtomicDestroy (atomic); -bail0: - return FcFalse; -} - -FcBool -FcDirCacheValid (const FcChar8 *dir) -{ - FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); - struct stat file_stat, dir_stat; - - if (stat ((char *) dir, &dir_stat) < 0) - { - FcStrFree (cache_file); - return FcFalse; - } - if (stat ((char *) cache_file, &file_stat) < 0) - { - FcStrFree (cache_file); - return FcFalse; - } - FcStrFree (cache_file); - /* - * If the directory has been modified more recently than - * the cache file, the cache is not valid - */ - if (dir_stat.st_mtime - file_stat.st_mtime > 0) - return FcFalse; - return FcTrue; -} - -FcBool -FcDirCacheReadDir (FcFontSet *set, FcStrSet *dirs, const FcChar8 *dir, FcConfig *config) -{ - FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); - FILE *f; - FcChar8 *base; - int id; - int dir_len; - FcChar8 file_buf[8192], *file; - FcChar8 name_buf[8192], *name; - FcBool ret = FcFalse; - - if (!cache_file) - goto bail0; - - if (FcDebug () & FC_DBG_CACHE) - printf ("FcDirCacheReadDir cache_file \"%s\"\n", cache_file); - - f = fopen ((char *) cache_file, "r"); - if (!f) - { - if (FcDebug () & FC_DBG_CACHE) - printf (" no cache file\n"); - goto bail1; - } - - if (!FcDirCacheValid (dir)) - { - if (FcDebug () & FC_DBG_CACHE) - printf (" cache file older than directory\n"); - goto bail2; - } - - base = (FcChar8 *) strrchr ((char *) cache_file, '/'); - if (!base) - goto bail2; - base++; - dir_len = base - cache_file; - - file = 0; - name = 0; - while ((file = FcCacheReadString (f, file_buf, sizeof (file_buf))) && - FcCacheReadInt (f, &id) && - (name = FcCacheReadString (f, name_buf, sizeof (name_buf)))) - { - if (!FcCacheFontSetAdd (set, dirs, cache_file, dir_len, - file, name, config)) - goto bail3; - if (file != file_buf) - free (file); - if (name != name_buf) - free (name); - file = name = 0; - } - if (FcDebug () & FC_DBG_CACHE) - printf (" cache loaded\n"); - - ret = FcTrue; -bail3: - if (file && file != file_buf) - free (file); - if (name && name != name_buf) - free (name); -bail2: - fclose (f); -bail1: - FcStrFree (cache_file); -bail0: - return ret; -} - -/* - * return the path from the directory containing 'cache' to 'file' - */ - -static const FcChar8 * -FcFileBaseName (const FcChar8 *cache, const FcChar8 *file) -{ - const FcChar8 *cache_slash; - - cache_slash = FcStrLastSlash (cache); - if (cache_slash && !strncmp ((const char *) cache, (const char *) file, - (cache_slash + 1) - cache)) - return file + ((cache_slash + 1) - cache); - return file; -} - -FcBool -FcDirCacheWriteDir (FcFontSet *set, FcStrSet *dirs, const FcChar8 *dir) -{ - FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE); - FcPattern *font; - FILE *f; - FcChar8 *name; - const FcChar8 *file, *base; - int n; - int id; - FcBool ret; - FcStrList *list; - - if (!cache_file) - goto bail0; - if (FcDebug () & FC_DBG_CACHE) - printf ("FcDirCacheWriteDir cache_file \"%s\"\n", cache_file); - - f = fopen ((char *) cache_file, "w"); - if (!f) - { - if (FcDebug () & FC_DBG_CACHE) - printf (" can't create \"%s\"\n", cache_file); - goto bail1; - } - - list = FcStrListCreate (dirs); - if (!list) - goto bail2; - - while ((dir = FcStrListNext (list))) - { - base = FcFileBaseName (cache_file, dir); - if (!FcCacheWriteString (f, base)) - goto bail3; - if (PUTC (' ', f) == EOF) - goto bail3; - if (!FcCacheWriteInt (f, 0)) - goto bail3; - if (PUTC (' ', f) == EOF) - goto bail3; - if (!FcCacheWriteString (f, FC_FONT_FILE_DIR)) - goto bail3; - if (PUTC ('\n', f) == EOF) - goto bail3; - } - - for (n = 0; n < set->nfont; n++) - { - font = set->fonts[n]; - if (FcPatternGetString (font, FC_FILE, 0, (FcChar8 **) &file) != FcResultMatch) - goto bail3; - base = FcFileBaseName (cache_file, file); - if (FcPatternGetInteger (font, FC_INDEX, 0, &id) != FcResultMatch) - goto bail3; - if (FcDebug () & FC_DBG_CACHEV) - printf (" write file \"%s\"\n", base); - if (!FcCacheWriteString (f, base)) - goto bail3; - if (PUTC (' ', f) == EOF) - goto bail3; - if (!FcCacheWriteInt (f, id)) - goto bail3; - if (PUTC (' ', f) == EOF) - goto bail3; - name = FcNameUnparse (font); - if (!name) - goto bail3; - ret = FcCacheWriteString (f, name); - FcStrFree (name); - if (!ret) - goto bail3; - if (PUTC ('\n', f) == EOF) - goto bail3; - } - - FcStrListDone (list); - - if (fclose (f) == EOF) - goto bail1; - - FcStrFree (cache_file); - - if (FcDebug () & FC_DBG_CACHE) - printf (" cache written\n"); - return FcTrue; - -bail3: - FcStrListDone (list); -bail2: - fclose (f); -bail1: - unlink ((char *) cache_file); - FcStrFree (cache_file); -bail0: - return FcFalse; -} |