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Add new API which unlinks directory caches and checks dir caches for 

existence of appropriate sections. Fix fc-cache to unlink stale cache
    files and save directory caches that lack relevant sections.
This commit is contained in:
Patrick Lam 2005-10-05 00:34:52 +00:00
parent 6bf2380478
commit 55c8fa4f08
4 changed files with 56 additions and 11 deletions
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11
ChangeLog
View File

@ -1,3 +1,14 @@
2005-10-04 Patrick Lam <plam@mit.edu>
* src/fccache.c (FcDirCacheValid, FcDirCacheUnlink,
FcDirCacheHasCurrentArch):
* fc-cache/fc-cache.c (scanDirs):
* fontconfig/fontconfig.h:
Add new API which unlinks directory caches and checks dir caches
for existence of appropriate sections. Fix fc-cache to unlink
stale cache files and save directory caches that lack relevant
sections.
2005-10-03 Patrick Lam <plam@mit.edu>
* src/fccache.c (FcDirCacheValid):

6
fc-cache/fc-cache.c
View File

@ -191,7 +191,7 @@ scanDirs (FcStrList *list, FcConfig *config, char *program, FcBool force, FcBool
ret++;
continue;
}
if (!force && FcDirCacheValid (dir))
if (!force && FcDirCacheValid (dir) && FcDirCacheHasCurrentArch (dir))
{
if (verbose)
printf ("skipping, %d fonts, %d dirs\n",
@ -203,6 +203,10 @@ scanDirs (FcStrList *list, FcConfig *config, char *program, FcBool force, FcBool
printf ("caching, %d fonts, %d dirs\n",
set->nfont, nsubdirs (subdirs));
if (!FcDirCacheValid (dir))
if (!FcDirCacheUnlink (dir))
ret++;
if (!FcDirSave (set, subdirs, dir))
{
fprintf (stderr, "Can't save cache in \"%s\"\n", dir);

6
fontconfig/fontconfig.h
View File

@ -273,6 +273,12 @@ _FCFUNCPROTOBEGIN
FcBool
FcDirCacheValid (const FcChar8 *cache_file);
FcBool
FcDirCacheHasCurrentArch (const FcChar8 *dir);
FcBool
FcDirCacheUnlink (const FcChar8 *dir);
/* fcblanks.c */
FcBlanks *
FcBlanksCreate (void);

44
src/fccache.c
View File

@ -517,14 +517,12 @@ FcCacheCopyOld (int fd, int fd_orig, off_t start)
return FcFalse;
}
/* Does not check that the cache has the appropriate arch section. */
FcBool
FcDirCacheValid (const FcChar8 *dir)
{
FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
struct stat file_stat, dir_stat;
int fd;
off_t current_arch_start;
char *current_arch_machine_name;
if (stat ((char *) dir, &dir_stat) < 0)
{
@ -537,8 +535,28 @@ FcDirCacheValid (const FcChar8 *dir)
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;
}
/* Assumes that the cache file in 'dir' exists.
* Checks that the cache has the appropriate arch section. */
FcBool
FcDirCacheHasCurrentArch (const FcChar8 *dir)
{
FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
int fd;
off_t current_arch_start;
char *current_arch_machine_name;
current_arch_machine_name = FcCacheMachineSignature();
fd = open(cache_file, O_RDONLY);
fd = open ((char *)cache_file, O_RDONLY);
if (fd == -1)
return FcFalse;
@ -548,13 +566,19 @@ FcDirCacheValid (const FcChar8 *dir)
if (current_arch_start < 0)
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 FcTrue;
}
FcBool
FcDirCacheUnlink (const FcChar8 *dir)
{
FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
if (!unlink ((char *)cache_file))
return FcFalse;
FcStrFree (cache_file);
return FcTrue;
}