FcStrSet *FcGetDefaultLangs(void) {
FcStrSet *result;
retry:
result = (FcStrSet *)fc_atomic_ptr_get(&default_langs);
if (!result) {
char *langs;
result = FcStrSetCreate();
langs = getenv("FC_LANG");
if (!langs || !langs[0]) langs = getenv("LC_ALL");
if (!langs || !langs[0]) langs = getenv("LC_CTYPE");
if (!langs || !langs[0]) langs = getenv("LANG");
if (langs && langs[0]) {
if (!FcStrSetAddLangs(result, langs))
FcStrSetAdd(result, (const FcChar8 *)"en");
} else
FcStrSetAdd(result, (const FcChar8 *)"en");
FcRefSetConst(&result->ref);
if (!fc_atomic_ptr_cmpexch(&default_langs, NULL, result)) {
FcRefInit(&result->ref, 1);
FcStrSetDestroy(result);
goto retry;
}
}
return result;
}
FcPattern *FcPatternCreate(void) {
FcPattern *p;
p = (FcPattern *)malloc(sizeof(FcPattern));
if (!p) return 0;
memset(p, 0, sizeof(FcPattern));
p->num = 0;
p->size = 0;
p->elts_offset = FcPtrToOffset(p, NULL);
FcRefInit(&p->ref, 1);
return p;
}
void
FcDefaultFini (void)
{
FcChar8 *lang;
FcStrSet *langs;
lang = fc_atomic_ptr_get (&default_lang);
if (lang && fc_atomic_ptr_cmpexch (&default_lang, lang, NULL)) {
free (lang);
}
langs = fc_atomic_ptr_get (&default_langs);
if (langs && fc_atomic_ptr_cmpexch (&default_langs, langs, NULL)) {
FcRefInit (&langs->ref, 1);
FcStrSetDestroy (langs);
}
}
FcConfig *
FcConfigCreate (void)
{
FcSetName set;
FcConfig *config;
config = malloc (sizeof (FcConfig));
if (!config)
goto bail0;
config->configDirs = FcStrSetCreate ();
if (!config->configDirs)
goto bail1;
config->configFiles = FcStrSetCreate ();
if (!config->configFiles)
goto bail2;
config->fontDirs = FcStrSetCreate ();
if (!config->fontDirs)
goto bail3;
config->acceptGlobs = FcStrSetCreate ();
if (!config->acceptGlobs)
goto bail4;
config->rejectGlobs = FcStrSetCreate ();
if (!config->rejectGlobs)
goto bail5;
config->acceptPatterns = FcFontSetCreate ();
if (!config->acceptPatterns)
goto bail6;
config->rejectPatterns = FcFontSetCreate ();
if (!config->rejectPatterns)
goto bail7;
config->cacheDirs = FcStrSetCreate ();
if (!config->cacheDirs)
goto bail8;
config->blanks = 0;
config->substPattern = 0;
config->substFont = 0;
config->substScan = 0;
config->maxObjects = 0;
for (set = FcSetSystem; set <= FcSetApplication; set++)
config->fonts[set] = 0;
config->rescanTime = time(0);
config->rescanInterval = 30;
config->expr_pool = NULL;
config->sysRoot = NULL;
FcRefInit (&config->ref, 1);
return config;
bail8:
FcFontSetDestroy (config->rejectPatterns);
bail7:
FcFontSetDestroy (config->acceptPatterns);
bail6:
FcStrSetDestroy (config->rejectGlobs);
bail5:
FcStrSetDestroy (config->acceptGlobs);
bail4:
FcStrSetDestroy (config->fontDirs);
bail3:
FcStrSetDestroy (config->configFiles);
bail2:
FcStrSetDestroy (config->configDirs);
bail1:
free (config);
bail0:
return 0;
}
/*
* Insert cache into the list
*/
static FcBool
FcCacheInsert (FcCache *cache, struct stat *cache_stat)
{
FcCacheSkip **update[FC_CACHE_MAX_LEVEL];
FcCacheSkip *s, **next;
int i, level;
lock_cache ();
/*
* Find links along each chain
*/
next = fcCacheChains;
for (i = fcCacheMaxLevel; --i >= 0; )
{
for (; (s = next[i]); next = s->next)
if (s->cache > cache)
break;
update[i] = &next[i];
}
/*
* Create new list element
*/
level = random_level ();
if (level > fcCacheMaxLevel)
{
level = fcCacheMaxLevel + 1;
update[fcCacheMaxLevel] = &fcCacheChains[fcCacheMaxLevel];
fcCacheMaxLevel = level;
}
s = malloc (sizeof (FcCacheSkip) + (level - 1) * sizeof (FcCacheSkip *));
if (!s)
return FcFalse;
s->cache = cache;
s->size = cache->size;
FcRefInit (&s->ref, 1);
if (cache_stat)
{
s->cache_dev = cache_stat->st_dev;
s->cache_ino = cache_stat->st_ino;
s->cache_mtime = cache_stat->st_mtime;
#ifdef HAVE_STRUCT_STAT_ST_MTIM
s->cache_mtime_nano = cache_stat->st_mtim.tv_nsec;
#else
s->cache_mtime_nano = 0;
#endif
}
else
{
s->cache_dev = 0;
s->cache_ino = 0;
s->cache_mtime = 0;
s->cache_mtime_nano = 0;
}
/*
* Insert into all fcCacheChains
*/
for (i = 0; i < level; i++)
{
s->next[i] = *update[i];
*update[i] = s;
}
unlock_cache ();
return FcTrue;
}
