/*
- * $RCSId: xc/lib/fontconfig/src/fccache.c,v 1.12 2002/08/22 07:36:44 keithp Exp $
- *
* Copyright © 2000 Keith Packard
* Copyright © 2005 Patrick Lam
*
* PERFORMANCE OF THIS SOFTWARE.
*/
+#include "fcint.h"
+#include "../fc-arch/fcarch.h"
+#include <stdio.h>
#include <fcntl.h>
#include <dirent.h>
#include <string.h>
-#include <sys/mman.h>
-#include <sys/utsname.h>
#include <sys/types.h>
-#include <unistd.h>
-#include "fcint.h"
-#include <unistd.h>
-
-#define ENDIAN_TEST 0x12345678
-#define MACHINE_SIGNATURE_SIZE 9 + 5*20 + 1
-
-static int
-FcDirCacheOpen (char * cache_file);
-
-static char *
-FcDirCacheHashName (char * cache_file, int collisions);
-
-static off_t
-FcCacheSkipToArch (int fd, const char * arch);
-
-static FcBool
-FcCacheCopyOld (int fd, int fd_orig, off_t start);
-
-static void *
-FcDirCacheProduce (FcFontSet *set, FcCache * metadata);
-
-static FcBool
-FcDirCacheConsume (int fd, const char * dir, FcFontSet *set, FcConfig *config);
-
-static int
-FcCacheNextOffset(off_t w);
-
-static char *
-FcCacheMachineSignature (void);
-
-static FcBool
-FcCacheHaveBank (int bank);
+#if defined(HAVE_MMAP) || defined(__CYGWIN__)
+# include <unistd.h>
+# include <sys/mman.h>
+#elif defined(_WIN32)
+# include <windows.h>
+#endif
-static void
-FcCacheAddBankDir (int bank, const char * dir);
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
struct MD5Context {
FcChar32 buf[4];
static void MD5Final(unsigned char digest[16], struct MD5Context *ctx);
static void MD5Transform(FcChar32 buf[4], FcChar32 in[16]);
-#define FC_DBG_CACHE_REF 1024
-
-static char *
-FcCacheReadString (int fd, char *dest, int len)
-{
- FcChar8 c;
- FcBool escape;
- int size;
- int i;
-
- if (len == 0)
- return 0;
-
- size = len;
- i = 0;
- escape = FcFalse;
- while (read (fd, &c, 1) == 1)
- {
- if (!escape)
- {
- switch (c) {
- case '"':
- c = '\0';
- break;
- case '\\':
- escape = FcTrue;
- continue;
- }
- }
- if (i == size)
- {
- dest[i++] = 0;
- return dest;
- }
- dest[i++] = c;
- if (c == '\0')
- return dest;
- escape = FcFalse;
- }
- return 0;
-}
-
-static void
-FcCacheSkipString (int fd)
-{
- FcChar8 c;
- FcBool escape;
-
- escape = FcFalse;
- while (read (fd, &c, 1) == 1)
- {
- if (!escape)
- {
- switch (c) {
- case '"':
- c = '\0';
- break;
- case '\\':
- escape = FcTrue;
- continue;
- }
- }
- if (c == '\0')
- return;
- escape = FcFalse;
- }
- return;
-}
+#define CACHEBASE_LEN (1 + 32 + 1 + sizeof (FC_ARCHITECTURE) + sizeof (FC_CACHE_SUFFIX))
-static FcBool
-FcCacheWriteString (int fd, const char *chars)
-{
- if (write (fd, chars, strlen(chars)+1) != strlen(chars)+1)
- return FcFalse;
- return FcTrue;
-}
-
-static void
-FcGlobalCacheDirDestroy (FcGlobalCacheDir *d)
-{
- FcMemFree (FC_MEM_STRING, strlen (d->name)+1);
- free (d->name);
- FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCacheDir));
- free (d);
-}
-
-FcGlobalCache *
-FcGlobalCacheCreate (void)
-{
- FcGlobalCache *cache;
-
- cache = malloc (sizeof (FcGlobalCache));
- if (!cache)
- return 0;
- FcMemAlloc (FC_MEM_CACHE, sizeof (FcGlobalCache));
- cache->dirs = 0;
- cache->updated = FcFalse;
- cache->fd = -1;
- return cache;
-}
-
-void
-FcGlobalCacheDestroy (FcGlobalCache *cache)
-{
- FcGlobalCacheDir *d, *next;
-
- for (d = cache->dirs; d; d = next)
- {
- next = d->next;
- FcGlobalCacheDirDestroy (d);
- }
- FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCache));
- free (cache);
-}
+static const char bin2hex[] = { '0', '1', '2', '3',
+ '4', '5', '6', '7',
+ '8', '9', 'a', 'b',
+ 'c', 'd', 'e', 'f' };
-void
-FcGlobalCacheLoad (FcGlobalCache *cache,
- FcStrSet *staleDirs,
- const FcChar8 *cache_file,
- FcConfig *config)
+static FcChar8 *
+FcDirCacheBasename (const FcChar8 * dir, FcChar8 cache_base[CACHEBASE_LEN])
{
- char name_buf[FC_MAX_FILE_LEN];
- FcGlobalCacheDir *d, *next;
- FcFileTime config_time = FcConfigModifiedTime (config);
- char * current_arch_machine_name;
- char candidate_arch_machine_name[MACHINE_SIGNATURE_SIZE + 9];
- off_t current_arch_start;
-
- struct stat cache_stat, dir_stat;
-
- if (stat ((char *) cache_file, &cache_stat) < 0)
- return;
-
- cache->fd = open ((char *) cache_file, O_RDONLY);
- if (cache->fd == -1)
- return;
-
- cache->updated = FcFalse;
-
- FcCacheReadString (cache->fd, name_buf, sizeof (name_buf));
- if (strcmp (name_buf, FC_GLOBAL_MAGIC_COOKIE) != 0)
- return;
-
- current_arch_machine_name = FcCacheMachineSignature ();
- current_arch_start = FcCacheSkipToArch(cache->fd,
- current_arch_machine_name);
- if (current_arch_start < 0)
- goto bail_and_destroy;
-
- lseek (cache->fd, current_arch_start, SEEK_SET);
- FcCacheReadString (cache->fd, candidate_arch_machine_name,
- sizeof (candidate_arch_machine_name));
- if (strlen(candidate_arch_machine_name) == 0)
- goto bail_and_destroy;
-
- while (1)
- {
- off_t targ;
-
- FcCacheReadString (cache->fd, name_buf, sizeof (name_buf));
- if (!strlen(name_buf))
- break;
-
- /* Directory must be older than the global cache file; also
- cache must be newer than the config file. */
- if (stat ((char *) name_buf, &dir_stat) < 0 ||
- dir_stat.st_mtime > cache_stat.st_mtime ||
- (config_time.set && cache_stat.st_mtime < config_time.time))
- {
- FcCache md;
-
- FcStrSetAdd (staleDirs, FcStrCopy ((FcChar8 *)name_buf));
- read (cache->fd, &md, sizeof (FcCache));
- lseek (cache->fd, FcCacheNextOffset (lseek(cache->fd, 0, SEEK_CUR)) + md.count, SEEK_SET);
- continue;
- }
-
- d = malloc (sizeof (FcGlobalCacheDir));
- if (!d)
- goto bail1;
+ unsigned char hash[16];
+ FcChar8 *hex_hash;
+ int cnt;
+ struct MD5Context ctx;
- d->next = cache->dirs;
- cache->dirs = d;
+ MD5Init (&ctx);
+ MD5Update (&ctx, (unsigned char *)dir, strlen ((char *) dir));
- d->name = (char *)FcStrCopy ((FcChar8 *)name_buf);
- d->ent = 0;
- d->offset = lseek (cache->fd, 0, SEEK_CUR);
- if (read (cache->fd, &d->metadata, sizeof (FcCache)) != sizeof (FcCache))
- goto bail1;
- targ = FcCacheNextOffset (lseek(cache->fd, 0, SEEK_CUR)) + d->metadata.count;
- if (lseek (cache->fd, targ, SEEK_SET) != targ)
- goto bail1;
- }
- return;
+ MD5Final (hash, &ctx);
- bail1:
- for (d = cache->dirs; d; d = next)
+ cache_base[0] = '/';
+ hex_hash = cache_base + 1;
+ for (cnt = 0; cnt < 16; ++cnt)
{
- next = d->next;
- free (d);
+ hex_hash[2*cnt ] = bin2hex[hash[cnt] >> 4];
+ hex_hash[2*cnt+1] = bin2hex[hash[cnt] & 0xf];
}
- cache->dirs = 0;
-
- close (cache->fd);
- cache->fd = -1;
- return;
-
- bail_and_destroy:
- close (cache->fd);
- cache->fd = -1;
-
- if (stat ((char *) cache_file, &cache_stat) == 0)
- unlink ((char *)cache_file);
-
- return;
+ hex_hash[2*cnt] = 0;
+ strcat ((char *) cache_base, "-" FC_ARCHITECTURE FC_CACHE_SUFFIX);
+ return cache_base;
}
FcBool
-FcGlobalCacheReadDir (FcFontSet *set, FcStrSet *dirs, FcGlobalCache * cache, const char *dir, FcConfig *config)
+FcDirCacheUnlink (const FcChar8 *dir, FcConfig *config)
{
- FcGlobalCacheDir *d;
- FcBool ret = FcFalse;
-
- if (cache->fd == -1)
- return FcFalse;
-
- for (d = cache->dirs; d; d = d->next)
- {
- if (strncmp (d->name, dir, strlen(dir)) == 0)
- {
- lseek (cache->fd, d->offset, SEEK_SET);
- if (!FcDirCacheConsume (cache->fd, dir, set, config))
- return FcFalse;
- if (strcmp (d->name, dir) == 0)
- ret = FcTrue;
- }
- }
-
- return ret;
-}
+ FcChar8 *cache_hashed = NULL;
+ FcChar8 cache_base[CACHEBASE_LEN];
+ FcStrList *list;
+ FcChar8 *cache_dir;
-FcBool
-FcGlobalCacheUpdate (FcGlobalCache *cache,
- const char *name,
- FcFontSet *set)
-{
- FcGlobalCacheDir * d;
+ FcDirCacheBasename (dir, cache_base);
- for (d = cache->dirs; d; d = d->next)
+ list = FcStrListCreate (config->cacheDirs);
+ if (!list)
+ return FcFalse;
+
+ while ((cache_dir = FcStrListNext (list)))
{
- if (strcmp(d->name, name) == 0)
+ cache_hashed = FcStrPlus (cache_dir, cache_base);
+ if (!cache_hashed)
break;
+ (void) unlink ((char *) cache_hashed);
}
-
- if (!d)
- {
- d = malloc (sizeof (FcGlobalCacheDir));
- if (!d)
- return FcFalse;
- d->next = cache->dirs;
- cache->dirs = d;
- }
-
- cache->updated = FcTrue;
-
- d->name = (char *)FcStrCopy ((FcChar8 *)name);
- d->ent = FcDirCacheProduce (set, &d->metadata);
- d->offset = 0;
- return FcTrue;
-}
-
-FcBool
-FcGlobalCacheSave (FcGlobalCache *cache,
- const FcChar8 *cache_file)
-{
- int fd, fd_orig;
- FcGlobalCacheDir *dir;
- FcAtomic *atomic;
- off_t current_arch_start = 0, truncate_to;
- char * current_arch_machine_name, * header;
-
- if (!cache->updated)
- return FcTrue;
-
-#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)
+ FcStrListDone (list);
+ /* return FcFalse if something went wrong */
+ if (cache_dir)
return FcFalse;
-
- if (!FcAtomicLock (atomic))
- goto bail1;
- fd = open ((char *) FcAtomicNewFile(atomic), O_RDWR | O_CREAT,
- S_IRUSR | S_IWUSR);
- if (fd == -1)
- goto bail2;
-
- fd_orig = open ((char *) FcAtomicOrigFile(atomic), O_RDONLY);
-
- current_arch_machine_name = FcCacheMachineSignature ();
- if (fd_orig == -1)
- current_arch_start = 0;
- else
- current_arch_start = FcCacheSkipToArch (fd_orig,
- current_arch_machine_name);
-
- if (current_arch_start < 0)
- current_arch_start = FcCacheNextOffset (lseek(fd_orig, 0, SEEK_END));
-
- if (!FcCacheCopyOld(fd, fd_orig, current_arch_start))
- goto bail3;
-
- close (fd_orig);
- fd_orig = -1;
-
- current_arch_start = lseek(fd, 0, SEEK_CUR);
- if (ftruncate (fd, current_arch_start) == -1)
- goto bail3;
-
- header = malloc (10 + strlen (current_arch_machine_name));
- if (!header)
- goto bail3;
-
- truncate_to = current_arch_start + strlen(current_arch_machine_name) + 11;
- for (dir = cache->dirs; dir; dir = dir->next)
- {
- truncate_to += strlen(dir->name) + 1;
- truncate_to += sizeof (FcCache);
- truncate_to = FcCacheNextOffset (truncate_to);
- truncate_to += dir->metadata.count;
- }
- truncate_to -= current_arch_start;
-
- FcCacheWriteString (fd, FC_GLOBAL_MAGIC_COOKIE);
- sprintf (header, "%8x ", (int)truncate_to);
- strcat (header, current_arch_machine_name);
- if (!FcCacheWriteString (fd, header))
- goto bail4;
-
- for (dir = cache->dirs; dir; dir = dir->next)
- {
- if (dir->name)
- {
- FcCacheWriteString (fd, dir->name);
- write (fd, &dir->metadata, sizeof(FcCache));
- lseek (fd, FcCacheNextOffset (lseek(fd, 0, SEEK_CUR)), SEEK_SET);
- write (fd, dir->ent, dir->metadata.count);
- free (dir->ent);
- }
- }
- FcCacheWriteString (fd, "");
-
- if (close (fd) == -1)
- goto bail25;
-
- if (!FcAtomicReplaceOrig (atomic))
- goto bail25;
-
- FcAtomicUnlock (atomic);
- FcAtomicDestroy (atomic);
-
- cache->updated = FcFalse;
return FcTrue;
-
- bail4:
- free (header);
- bail3:
- if (fd_orig != -1)
- close (fd_orig);
-
- close (fd);
- bail25:
- FcAtomicDeleteNew (atomic);
- bail2:
- FcAtomicUnlock (atomic);
- bail1:
- FcAtomicDestroy (atomic);
- return FcFalse;
}
-/*
- * Find the next presumably-mmapable offset after the supplied file
- * position.
- */
static int
-FcCacheNextOffset(off_t w)
-{
- static long pagesize = -1;
- if (pagesize == -1)
- pagesize = sysconf(_SC_PAGESIZE);
- if (w % pagesize == 0)
- return w;
- else
- return ((w / pagesize)+1)*pagesize;
-}
-
-/* return the address of the segment for the provided arch,
- * or -1 if arch not found */
-static off_t
-FcCacheSkipToArch (int fd, const char * arch)
+FcDirCacheOpenFile (const FcChar8 *cache_file, struct stat *file_stat)
{
- char candidate_arch_machine_name_count[MACHINE_SIGNATURE_SIZE + 9];
- char * candidate_arch;
- off_t current_arch_start = 0;
-
- lseek (fd, 0, SEEK_SET);
- FcCacheSkipString (fd);
- current_arch_start = lseek (fd, 0, SEEK_CUR);
+ int fd;
- /* skip arches that are not the current arch */
- while (1)
- {
- long bs;
-
- if (lseek (fd, current_arch_start, SEEK_SET) != current_arch_start)
- return -1;
-
- if (FcCacheReadString (fd, candidate_arch_machine_name_count,
- sizeof (candidate_arch_machine_name_count)) == 0)
- return -1;
- if (!strlen(candidate_arch_machine_name_count))
- return -1;
- bs = strtol(candidate_arch_machine_name_count, &candidate_arch, 16);
-
- // count = 0 should probably be distinguished from the !bs condition
- if (!bs || bs < strlen (candidate_arch_machine_name_count))
- return -1;
-
- candidate_arch++; /* skip leading space */
-
- if (strcmp (candidate_arch, arch)==0)
- return current_arch_start;
- current_arch_start += bs;
- }
-
- return -1;
-}
-
-/* Cuts out the segment at the file pointer (moves everything else
- * down to cover it), and leaves the file pointer at the end of the
- * file. */
-static FcBool
-FcCacheCopyOld (int fd, int fd_orig, off_t start)
-{
- char * buf = malloc (8192);
- char candidate_arch_machine_name[MACHINE_SIGNATURE_SIZE + 9];
- long bs;
- int c, bytes_skipped;
- off_t loc;
-
- if (!buf)
- return FcFalse;
-
- loc = 0;
- lseek (fd, 0, SEEK_SET); lseek (fd_orig, 0, SEEK_SET);
- do
- {
- int b = 8192;
- if (loc + b > start)
- b = start - loc;
-
- if ((c = read (fd_orig, buf, b)) <= 0)
- break;
- if (write (fd, buf, c) < 0)
- goto bail;
-
- loc += c;
- }
- while (c > 0);
-
- lseek (fd, start, SEEK_SET);
- if (FcCacheReadString (fd, candidate_arch_machine_name,
- sizeof (candidate_arch_machine_name)) == 0)
- goto done;
- if (!strlen(candidate_arch_machine_name))
- goto done;
-
- bs = strtol(candidate_arch_machine_name, 0, 16);
- if (bs == 0)
- goto done;
-
- bytes_skipped = 0;
- do
+ fd = open((char *) cache_file, O_RDONLY | O_BINARY);
+ if (fd < 0)
+ return fd;
+ if (fstat (fd, file_stat) < 0)
{
- lseek (fd, start+bs+bytes_skipped, SEEK_SET);
- if ((c = read (fd, buf, 8192)) <= 0)
- break;
- lseek (fd, start+bytes_skipped, SEEK_SET);
- if (write (fd, buf, c) < 0)
- goto bail;
- bytes_skipped += c;
+ close (fd);
+ return -1;
}
- while (c > 0);
- lseek (fd, start+bytes_skipped, SEEK_SET);
-
- done:
- free (buf);
- return FcTrue;
-
- bail:
- free (buf);
- return FcFalse;
+ return fd;
}
-/* Does not check that the cache has the appropriate arch section. */
-/* Also, this can be fooled if the original location has a stale
- * cache, and the hashed location has an up-to-date cache. Oh well,
- * sucks to be you in that case! */
-FcBool
-FcDirCacheValid (const FcChar8 *dir)
-{
- FcChar8 *cache_file;
+/*
+ * Look for a cache file for the specified dir. Attempt
+ * to use each one we find, stopping when the callback
+ * indicates success
+ */
+static FcBool
+FcDirCacheProcess (FcConfig *config, const FcChar8 *dir,
+ FcBool (*callback) (int fd, off_t size, void *closure),
+ void *closure, FcChar8 **cache_file_ret)
+{
+ int fd = -1;
+ FcChar8 cache_base[CACHEBASE_LEN];
+ FcStrList *list;
+ FcChar8 *cache_dir;
struct stat file_stat, dir_stat;
- int fd;
+ FcBool ret = FcFalse;
if (stat ((char *) dir, &dir_stat) < 0)
return FcFalse;
- cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
- if (!cache_file)
- return FcFalse;
-
- fd = FcDirCacheOpen ((char *)cache_file);
+ FcDirCacheBasename (dir, cache_base);
- if (fd < 0)
- goto bail;
- if (fstat (fd, &file_stat) < 0)
- goto bail1;
-
- close (fd);
- 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)
+ list = FcStrListCreate (config->cacheDirs);
+ if (!list)
return FcFalse;
-
- return FcTrue;
-
- bail1:
- close (fd);
- bail:
- FcStrFree (cache_file);
- return FcFalse;
-}
-
-/* Assumes that the cache file in 'dir' exists.
- * Checks that the cache has the appropriate arch section. */
-FcBool
-FcDirCacheHasCurrentArch (const FcChar8 *dir)
-{
- char *cache_file;
- int fd;
- off_t current_arch_start;
- char *current_arch_machine_name;
-
- cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
- if (!cache_file)
- return FcFalse;
-
- fd = FcDirCacheOpen (cache_file);
- if (fd < 0)
- goto bail;
-
- current_arch_machine_name = FcCacheMachineSignature();
- current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name);
- close (fd);
-
- if (current_arch_start < 0)
- return FcFalse;
-
- return FcTrue;
-
- bail:
- free (cache_file);
- return FcFalse;
-}
-
-FcBool
-FcDirCacheUnlink (const FcChar8 *dir)
-{
- char *cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
- char *cache_hashed;
- int fd, collisions;
- struct stat cache_stat;
- char name_buf[FC_MAX_FILE_LEN];
-
- /* First remove normal cache file. */
- if (stat ((char *) cache_file, &cache_stat) == 0 &&
- unlink ((char *)cache_file) != 0)
- goto bail;
-
- /* Next remove any applicable hashed files. */
- fd = -1; collisions = 0;
- do
+
+ while ((cache_dir = FcStrListNext (list)))
{
- cache_hashed = FcDirCacheHashName (cache_file, collisions++);
- if (!cache_hashed)
- goto bail;
-
- if (fd > 0)
+ FcChar8 *cache_hashed = FcStrPlus (cache_dir, cache_base);
+ if (!cache_hashed)
+ break;
+ fd = FcDirCacheOpenFile (cache_hashed, &file_stat);
+ if (fd >= 0) {
+ if (dir_stat.st_mtime <= file_stat.st_mtime)
+ {
+ ret = (*callback) (fd, file_stat.st_size, closure);
+ if (ret)
+ {
+ if (cache_file_ret)
+ *cache_file_ret = cache_hashed;
+ else
+ FcStrFree (cache_hashed);
+ close (fd);
+ break;
+ }
+ }
close (fd);
- fd = open(cache_hashed, O_RDONLY);
- if (fd == -1)
- {
- FcStrFree ((FcChar8 *)cache_file);
- return FcTrue;
}
-
- FcCacheReadString (fd, name_buf, sizeof (name_buf));
- if (!strlen(name_buf))
- goto bail;
- } while (strcmp (name_buf, cache_file) != 0);
-
- FcStrFree ((FcChar8 *)cache_file);
- close (fd);
-
- if (stat ((char *) cache_hashed, &cache_stat) == 0 &&
- unlink ((char *)cache_hashed) != 0)
- {
- FcStrFree ((FcChar8 *)cache_hashed);
- goto bail;
+ FcStrFree (cache_hashed);
}
-
- FcStrFree ((FcChar8 *)cache_hashed);
- return FcTrue;
-
- bail:
- FcStrFree ((FcChar8 *)cache_file);
- return FcFalse;
+ FcStrListDone (list);
+
+ return ret;
}
-static int
-FcCacheReadDirs (FcConfig * config, FcGlobalCache * cache,
- FcStrList *list, FcFontSet * set)
+#define FC_CACHE_MIN_MMAP 1024
+
+/*
+ * Map a cache file into memory
+ */
+static FcCache *
+FcDirCacheMapFd (int fd, off_t size)
{
- int ret = 0;
- FcChar8 *dir;
- FcChar8 *file, *base;
- FcStrSet *subdirs;
- FcStrList *sublist;
- struct stat statb;
+ FcCache *cache = NULL;
+ FcBool allocated = FcFalse;
+ if (size < sizeof (FcCache))
+ return NULL;
/*
- * Read in the results from 'list'.
+ * For small cache files, just read them into memory
*/
- while ((dir = FcStrListNext (list)))
+ if (size >= FC_CACHE_MIN_MMAP)
{
- if (!FcConfigAcceptFilename (config, dir))
- continue;
-
- /* freed below */
- file = (FcChar8 *) malloc (strlen ((char *) dir) + 1 + FC_MAX_FILE_LEN + 1);
- if (!file)
- return FcFalse;
-
- strcpy ((char *) file, (char *) dir);
- strcat ((char *) file, "/");
- base = file + strlen ((char *) file);
-
- subdirs = FcStrSetCreate ();
- if (!subdirs)
+#if defined(HAVE_MMAP) || defined(__CYGWIN__)
+ cache = mmap (0, size, PROT_READ, MAP_SHARED, fd, 0);
+#elif defined(_WIN32)
{
- fprintf (stderr, "Can't create directory set\n");
- ret++;
- free (file);
- continue;
- }
-
- if (access ((char *) dir, X_OK) < 0)
- {
- switch (errno) {
- case ENOENT:
- case ENOTDIR:
- case EACCES:
- break;
- default:
- fprintf (stderr, "\"%s\": ", dir);
- perror ("");
- ret++;
+ HANDLE hFileMap;
+
+ cache = NULL;
+ hFileMap = CreateFileMapping((HANDLE) _get_osfhandle(fd), NULL,
+ PAGE_READONLY, 0, 0, NULL);
+ if (hFileMap != NULL)
+ {
+ cache = MapViewOfFile (hFileMap, FILE_MAP_READ, 0, 0, size);
+ CloseHandle (hFileMap);
}
- FcStrSetDestroy (subdirs);
- free (file);
- continue;
}
- if (stat ((char *) dir, &statb) == -1)
+#endif
+ }
+ if (!cache)
+ {
+ cache = malloc (size);
+ if (!cache)
+ return NULL;
+
+ if (read (fd, cache, size) != size)
{
- fprintf (stderr, "\"%s\": ", dir);
- perror ("");
- FcStrSetDestroy (subdirs);
- ret++;
- free (file);
- continue;
+ free (cache);
+ return NULL;
}
- if (!S_ISDIR (statb.st_mode))
+ allocated = FcTrue;
+ }
+ if (cache->magic != FC_CACHE_MAGIC_MMAP ||
+ cache->version < FC_CACHE_CONTENT_VERSION ||
+ cache->size != size)
+ {
+ if (allocated)
+ free (cache);
+ else
{
- fprintf (stderr, "\"%s\": not a directory, skipping\n", dir);
- FcStrSetDestroy (subdirs);
- free (file);
- continue;
+#if defined(HAVE_MMAP) || defined(__CYGWIN__)
+ munmap (cache, size);
+#elif defined(_WIN32)
+ UnmapViewOfFile (cache);
+#endif
}
- if (!FcDirCacheValid (dir) || !FcDirCacheRead (set, subdirs, dir, config))
- {
- if (FcDebug () & FC_DBG_FONTSET)
- printf ("cache scan dir %s\n", dir);
+ return NULL;
+ }
- FcDirScanConfig (set, subdirs, cache,
- config->blanks, dir, FcFalse, config);
- }
- sublist = FcStrListCreate (subdirs);
- FcStrSetDestroy (subdirs);
- if (!sublist)
- {
- fprintf (stderr, "Can't create subdir list in \"%s\"\n", dir);
- ret++;
- free (file);
- continue;
- }
- ret += FcCacheReadDirs (config, cache, sublist, set);
- free (file);
+ /* Mark allocated caches so they're freed rather than unmapped */
+ if (allocated)
+ cache->magic = FC_CACHE_MAGIC_ALLOC;
+
+ return cache;
+}
+
+void
+FcDirCacheUnload (FcCache *cache)
+{
+ switch (cache->magic) {
+ case FC_CACHE_MAGIC_ALLOC:
+ free (cache);
+ break;
+ case FC_CACHE_MAGIC_MMAP:
+#if defined(HAVE_MMAP) || defined(__CYGWIN__)
+ munmap (cache, cache->size);
+#elif defined(_WIN32)
+ UnmapViewOfFile (cache);
+#endif
+ break;
}
- FcStrListDone (list);
- return ret;
}
-FcFontSet *
-FcCacheRead (FcConfig *config, FcGlobalCache * cache)
+static FcBool
+FcDirCacheMapHelper (int fd, off_t size, void *closure)
{
- FcFontSet * s = FcFontSetCreate();
- if (!s)
- return 0;
-
- if (FcCacheReadDirs (config, cache, FcConfigGetConfigDirs (config), s))
- goto bail;
-
- return s;
+ FcCache *cache = FcDirCacheMapFd (fd, size);
- bail:
- FcFontSetDestroy (s);
- return 0;
+ if (!cache)
+ return FcFalse;
+ *((FcCache **) closure) = cache;
+ return FcTrue;
}
-static const char bin2hex[] = { '0', '1', '2', '3',
- '4', '5', '6', '7',
- '8', '9', 'a', 'b',
- 'c', 'd', 'e', 'f' };
-
-static char *
-FcDirCacheHashName (char * cache_file, int collisions)
+FcCache *
+FcDirCacheLoad (const FcChar8 *dir, FcConfig *config, FcChar8 **cache_file)
{
- unsigned char hash[16], hex_hash[33];
- char *cache_hashed;
- unsigned char uscore = '_';
- int cnt, i;
- FcChar8 *tmp;
- struct MD5Context ctx;
-
- MD5Init (&ctx);
- MD5Update (&ctx, (unsigned char *)cache_file, strlen (cache_file));
-
- for (i = 0; i < collisions; i++)
- MD5Update (&ctx, &uscore, 1);
-
- MD5Final (hash, &ctx);
-
- for (cnt = 0; cnt < 16; ++cnt)
- {
- hex_hash[2*cnt] = bin2hex[hash[cnt] >> 4];
- hex_hash[2*cnt+1] = bin2hex[hash[cnt] & 0xf];
- }
- hex_hash[32] = 0;
+ FcCache *cache = NULL;
- tmp = FcStrPlus ((FcChar8 *)hex_hash, (FcChar8 *)FC_CACHE_SUFFIX);
- if (!tmp)
- return 0;
-
- cache_hashed = (char *)FcStrPlus ((FcChar8 *)PKGCACHEDIR"/", tmp);
- free (tmp);
-
- return cache_hashed;
+ if (!FcDirCacheProcess (config, dir,
+ FcDirCacheMapHelper,
+ &cache, cache_file))
+ return NULL;
+ return cache;
}
-/* Opens the hashed name for cache_file.
- * This would fail in the unlikely event of a collision and subsequent
- * removal of the file which originally caused the collision. */
-static int
-FcDirCacheOpen (char *cache_file)
+FcCache *
+FcDirCacheLoadFile (const FcChar8 *cache_file, struct stat *file_stat)
{
- int fd = -1, collisions = 0;
- char *cache_hashed;
- char name_buf[FC_MAX_FILE_LEN];
+ int fd;
+ FcCache *cache;
- fd = open(cache_file, O_RDONLY);
- if (fd != -1)
- return fd;
-
- do
- {
- cache_hashed = FcDirCacheHashName (cache_file, collisions++);
- if (!cache_hashed)
- return -1;
-
- if (fd > 0)
- close (fd);
- fd = open(cache_hashed, O_RDONLY);
- FcStrFree ((FcChar8 *)cache_hashed);
-
- if (fd == -1)
- return -1;
- FcCacheReadString (fd, name_buf, sizeof (name_buf));
- if (!strlen(name_buf))
- goto bail;
- } while (strcmp (name_buf, cache_file) != 0);
- return fd;
-
- bail:
+ fd = FcDirCacheOpenFile (cache_file, file_stat);
+ if (fd < 0)
+ return NULL;
+ cache = FcDirCacheMapFd (fd, file_stat->st_size);
close (fd);
- return -1;
+ return cache;
}
-/* read serialized state from the cache file */
-FcBool
-FcDirCacheRead (FcFontSet * set, FcStrSet * dirs, const FcChar8 *dir, FcConfig *config)
+/*
+ * Validate a cache file by reading the header and checking
+ * the magic number and the size field
+ */
+static FcBool
+FcDirCacheValidateHelper (int fd, off_t size, void *closure)
{
- char *cache_file;
- int fd;
- char *current_arch_machine_name;
- char candidate_arch_machine_name[9+MACHINE_SIGNATURE_SIZE];
- off_t current_arch_start = 0;
- char subdirName[FC_MAX_FILE_LEN + 1 + 12 + 1];
-
- cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
- if (!cache_file)
- return FcFalse;
-
- fd = FcDirCacheOpen (cache_file);
- if (fd < 0)
- goto bail;
-
- current_arch_machine_name = FcCacheMachineSignature();
- current_arch_start = FcCacheSkipToArch(fd,
- current_arch_machine_name);
- if (current_arch_start < 0)
- goto bail1;
-
- lseek (fd, current_arch_start, SEEK_SET);
- if (FcCacheReadString (fd, candidate_arch_machine_name,
- sizeof (candidate_arch_machine_name)) == 0)
- goto bail1;
-
- while (strlen(FcCacheReadString (fd, subdirName, sizeof (subdirName))) > 0)
- FcStrSetAdd (dirs, (FcChar8 *)subdirName);
-
- if (!FcDirCacheConsume (fd, (const char *)dir, set, config))
- goto bail1;
-
- close(fd);
- free (cache_file);
- return FcTrue;
-
- bail1:
- close (fd);
- bail:
- free (cache_file);
- return FcFalse;
+ FcBool ret = FcTrue;
+ FcCache c;
+ struct stat file_stat;
+
+ if (read (fd, &c, sizeof (FcCache)) != sizeof (FcCache))
+ ret = FcFalse;
+ else if (c.magic != FC_CACHE_MAGIC_MMAP)
+ ret = FcFalse;
+ else if (c.version < FC_CACHE_CONTENT_VERSION)
+ ret = FcFalse;
+ else if (fstat (fd, &file_stat) < 0)
+ ret = FcFalse;
+ else if (file_stat.st_size != c.size)
+ ret = FcFalse;
+ return ret;
}
static FcBool
-FcDirCacheConsume (int fd, const char * dir, FcFontSet *set, FcConfig *config)
+FcDirCacheValidConfig (const FcChar8 *dir, FcConfig *config)
{
- FcCache metadata;
- void * current_dir_block;
- off_t pos;
+ return FcDirCacheProcess (config, dir,
+ FcDirCacheValidateHelper,
+ NULL, NULL);
+}
- read(fd, &metadata, sizeof(FcCache));
- if (metadata.magic != FC_CACHE_MAGIC)
+FcBool
+FcDirCacheValid (const FcChar8 *dir)
+{
+ FcConfig *config;
+
+ config = FcConfigGetCurrent ();
+ if (!config)
return FcFalse;
- if (!metadata.count)
- {
- pos = FcCacheNextOffset (lseek(fd, 0, SEEK_CUR));
- lseek (fd, pos, SEEK_SET);
- return FcTrue;
- }
+ return FcDirCacheValidConfig (dir, config);
+}
- pos = FcCacheNextOffset (lseek(fd, 0, SEEK_CUR));
- current_dir_block = mmap (0, metadata.count,
- PROT_READ, MAP_SHARED, fd, pos);
- lseek (fd, pos+metadata.count, SEEK_SET);
- if (current_dir_block == MAP_FAILED)
- return FcFalse;
+/*
+ * Build a cache structure from the given contents
+ */
+FcCache *
+FcDirCacheBuild (FcFontSet *set, const FcChar8 *dir, FcStrSet *dirs)
+{
+ FcSerialize *serialize = FcSerializeCreate ();
+ FcCache *cache;
+ int i;
+ intptr_t cache_offset;
+ intptr_t dirs_offset;
+ FcChar8 *dir_serialize;
+ intptr_t *dirs_serialize;
+ FcFontSet *set_serialize;
+
+ if (!serialize)
+ return NULL;
+ /*
+ * Space for cache structure
+ */
+ cache_offset = FcSerializeReserve (serialize, sizeof (FcCache));
+ /*
+ * Directory name
+ */
+ if (!FcStrSerializeAlloc (serialize, dir))
+ goto bail1;
+ /*
+ * Subdirs
+ */
+ dirs_offset = FcSerializeAlloc (serialize, dirs, dirs->num * sizeof (FcChar8 *));
+ for (i = 0; i < dirs->num; i++)
+ if (!FcStrSerializeAlloc (serialize, dirs->strs[i]))
+ goto bail1;
- FcCacheAddBankDir (metadata.bank, dir);
- if (config)
- FcConfigAddFontDir (config, (FcChar8 *)dir);
+ /*
+ * Patterns
+ */
+ if (!FcFontSetSerializeAlloc (serialize, set))
+ goto bail1;
+
+ /* Serialize layout complete. Now allocate space and fill it */
+ cache = malloc (serialize->size);
+ if (!cache)
+ goto bail1;
+ /* shut up valgrind */
+ memset (cache, 0, serialize->size);
- if (!FcFontSetUnserialize (&metadata, set, current_dir_block))
- return FcFalse;
+ serialize->linear = cache;
- return FcTrue;
-}
+ cache->magic = FC_CACHE_MAGIC_ALLOC;
+ cache->version = FC_CACHE_CONTENT_VERSION;
+ cache->size = serialize->size;
-static void *
-FcDirCacheProduce (FcFontSet *set, FcCache *metadata)
-{
- void * current_dir_block, * final_dir_block;
- static unsigned int rand_state = 0;
- int bank, needed_bytes_no_align;
-
- if (!rand_state)
- rand_state = time(0L);
- bank = rand_r(&rand_state);
-
- while (FcCacheHaveBank(bank))
- bank = rand_r(&rand_state);
-
- memset (metadata, 0, sizeof(FcCache));
- FcFontSetNewBank();
- needed_bytes_no_align = FcFontSetNeededBytes (set);
- metadata->count = needed_bytes_no_align +
- FcFontSetNeededBytesAlign ();
- metadata->magic = FC_CACHE_MAGIC;
- metadata->bank = bank;
-
- if (!needed_bytes_no_align) /* not a failure, no fonts to write */
+ /*
+ * Serialize directory name
+ */
+ dir_serialize = FcStrSerialize (serialize, dir);
+ if (!dir_serialize)
+ goto bail2;
+ cache->dir = FcPtrToOffset (cache, dir_serialize);
+
+ /*
+ * Serialize sub dirs
+ */
+ dirs_serialize = FcSerializePtr (serialize, dirs);
+ if (!dirs_serialize)
+ goto bail2;
+ cache->dirs = FcPtrToOffset (cache, dirs_serialize);
+ cache->dirs_count = dirs->num;
+ for (i = 0; i < dirs->num; i++)
{
- /* no, you don't really need to write any bytes at all. */
- metadata->count = 0;
- return 0;
+ FcChar8 *d_serialize = FcStrSerialize (serialize, dirs->strs[i]);
+ if (!d_serialize)
+ goto bail2;
+ dirs_serialize[i] = FcPtrToOffset (dirs_serialize, d_serialize);
}
+
+ /*
+ * Serialize font set
+ */
+ set_serialize = FcFontSetSerialize (serialize, set);
+ if (!set_serialize)
+ goto bail2;
+ cache->set = FcPtrToOffset (cache, set_serialize);
- current_dir_block = malloc (metadata->count);
- if (!current_dir_block)
- goto bail;
- // shut up valgrind
- memset (current_dir_block, 0, metadata->count);
- final_dir_block = FcFontSetDistributeBytes (metadata, current_dir_block);
-
- if ((void *)((char *)current_dir_block+metadata->count) < final_dir_block)
- goto bail;
-
- if (!FcFontSetSerialize (bank, set))
- goto bail;
+ FcSerializeDestroy (serialize);
+
+ return cache;
- return current_dir_block;
+bail2:
+ free (cache);
+bail1:
+ FcSerializeDestroy (serialize);
+ return NULL;
+}
- bail:
- free (current_dir_block);
- return 0;
+static FcBool
+FcMakeDirectory (const FcChar8 *dir)
+{
+ FcChar8 *parent;
+ FcBool ret;
+
+ if (strlen ((char *) dir) == 0)
+ return FcFalse;
+
+ parent = FcStrDirname (dir);
+ if (!parent)
+ return FcFalse;
+ if (access ((char *) parent, W_OK|X_OK) == 0)
+ ret = mkdir ((char *) dir, 0777) == 0;
+ else if (access ((char *) parent, F_OK) == -1)
+ ret = FcMakeDirectory (parent) && (mkdir ((char *) dir, 0777) == 0);
+ else
+ ret = FcFalse;
+ FcStrFree (parent);
+ return ret;
}
/* write serialized state to the cache file */
FcBool
-FcDirCacheWrite (FcFontSet *set, FcStrSet *dirs, const FcChar8 *dir)
+FcDirCacheWrite (FcCache *cache, FcConfig *config)
{
- char *cache_file;
- char *cache_hashed;
- int fd, fd_orig, i, dirs_count;
+ FcChar8 *dir = FcCacheDir (cache);
+ FcChar8 cache_base[CACHEBASE_LEN];
+ FcChar8 *cache_hashed;
+ int fd;
FcAtomic *atomic;
- FcCache metadata;
- off_t current_arch_start = 0, truncate_to;
- char name_buf[FC_MAX_FILE_LEN];
- int collisions;
-
- char *current_arch_machine_name, * header;
- void *current_dir_block = 0;
+ FcStrList *list;
+ FcChar8 *cache_dir = NULL;
+ FcChar8 *test_dir;
+ int magic;
+ int written;
- dir = FcConfigNormalizeFontDir (FcConfigGetCurrent(), dir);
- if (!dir)
+ /*
+ * Write it to the first directory in the list which is writable
+ */
+
+ list = FcStrListCreate (config->cacheDirs);
+ if (!list)
return FcFalse;
-
- cache_file = (char *)FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
- if (!cache_file)
- goto bail;
-
- /* Ensure that we're not trampling a cache for some other dir. */
- /* This is slightly different from FcDirCacheOpen, since it
- * needs the filename, not the file descriptor. */
- fd = -1; collisions = 0;
- do
- {
- cache_hashed = FcDirCacheHashName (cache_file, collisions++);
- if (!cache_hashed)
- goto bail0;
-
- if (fd > 0)
- close (fd);
- fd = open(cache_hashed, O_RDONLY);
- if (fd == -1)
- break;
- FcCacheReadString (fd, name_buf, sizeof (name_buf));
- close (fd);
-
- if (!strlen(name_buf))
+ while ((test_dir = FcStrListNext (list))) {
+ if (access ((char *) test_dir, W_OK|X_OK) == 0)
+ {
+ cache_dir = test_dir;
break;
+ }
+ else
+ {
+ /*
+ * If the directory doesn't exist, try to create it
+ */
+ if (access ((char *) test_dir, F_OK) == -1) {
+ if (FcMakeDirectory (test_dir))
+ {
+ cache_dir = test_dir;
+ break;
+ }
+ }
+ }
+ }
+ FcStrListDone (list);
+ if (!cache_dir)
+ return FcFalse;
- if (strcmp (name_buf, cache_file) != 0)
- continue;
- } while (0);
-
- current_dir_block = FcDirCacheProduce (set, &metadata);
-
- if (metadata.count && !current_dir_block)
- goto bail1;
+ FcDirCacheBasename (dir, cache_base);
+ cache_hashed = FcStrPlus (cache_dir, cache_base);
+ if (!cache_hashed)
+ return FcFalse;
if (FcDebug () & FC_DBG_CACHE)
- printf ("FcDirCacheWriteDir cache_file \"%s\"\n", cache_file);
+ printf ("FcDirCacheWriteDir dir \"%s\" file \"%s\"\n",
+ dir, cache_hashed);
atomic = FcAtomicCreate ((FcChar8 *)cache_hashed);
if (!atomic)
goto bail1;
if (!FcAtomicLock (atomic))
- {
- /* Now try rewriting the original version of the file. */
- FcAtomicDestroy (atomic);
-
- atomic = FcAtomicCreate ((FcChar8 *)cache_file);
- fd_orig = open (cache_file, O_RDONLY);
- if (fd_orig == -1)
- fd_orig = open((char *)FcAtomicOrigFile (atomic), O_RDONLY);
-
- fd = open((char *)FcAtomicNewFile (atomic), O_RDWR | O_CREAT, 0666);
- if (fd == -1)
- goto bail2;
- }
-
- /* In all cases, try opening the real location of the cache file first. */
- /* (even if that's not atomic.) */
- fd_orig = open (cache_file, O_RDONLY);
- if (fd_orig == -1)
- fd_orig = open((char *)FcAtomicOrigFile (atomic), O_RDONLY);
-
- fd = open((char *)FcAtomicNewFile (atomic), O_RDWR | O_CREAT, 0666);
- if (fd == -1)
goto bail3;
- FcCacheWriteString (fd, cache_file);
-
- current_arch_machine_name = FcCacheMachineSignature ();
- current_arch_start = 0;
-
- if (fd_orig != -1)
- current_arch_start =
- FcCacheSkipToArch(fd_orig, current_arch_machine_name);
-
- if (current_arch_start < 0)
- current_arch_start = FcCacheNextOffset (lseek(fd_orig, 0, SEEK_END));
-
- if (fd_orig != -1 && !FcCacheCopyOld(fd, fd_orig, current_arch_start))
- goto bail4;
-
- if (fd_orig != -1)
- close (fd_orig);
-
- current_arch_start = lseek(fd, 0, SEEK_CUR);
- if (ftruncate (fd, current_arch_start) == -1)
- goto bail4;
-
- /* allocate space for subdir names in this block */
- dirs_count = 0;
- for (i = 0; i < dirs->size; i++)
- dirs_count += strlen((char *)dirs->strs[i]) + 1;
- dirs_count ++;
-
- /* now write the address of the next offset */
- truncate_to = FcCacheNextOffset (FcCacheNextOffset (current_arch_start + sizeof (FcCache) + dirs_count) + metadata.count) - current_arch_start;
- header = malloc (10 + strlen (current_arch_machine_name));
- if (!header)
+ fd = open((char *)FcAtomicNewFile (atomic), O_RDWR | O_CREAT | O_BINARY, 0666);
+ if (fd == -1)
goto bail4;
- sprintf (header, "%8x ", (int)truncate_to);
- strcat (header, current_arch_machine_name);
- if (!FcCacheWriteString (fd, header))
- goto bail5;
-
- for (i = 0; i < dirs->size; i++)
- FcCacheWriteString (fd, (char *)dirs->strs[i]);
- FcCacheWriteString (fd, "");
-
- write (fd, &metadata, sizeof(FcCache));
- if (metadata.count)
+
+ /* Temporarily switch magic to MMAP while writing to file */
+ magic = cache->magic;
+ if (magic != FC_CACHE_MAGIC_MMAP)
+ cache->magic = FC_CACHE_MAGIC_MMAP;
+
+ /*
+ * Write cache contents to file
+ */
+ written = write (fd, cache, cache->size);
+
+ /* Switch magic back */
+ if (magic != FC_CACHE_MAGIC_MMAP)
+ cache->magic = magic;
+
+ if (written != cache->size)
{
- lseek (fd, FcCacheNextOffset (lseek(fd, 0, SEEK_END)), SEEK_SET);
- write (fd, current_dir_block, metadata.count);
- free (current_dir_block);
- }
-
- /* this actually serves to pad out the cache file, if needed */
- if (ftruncate (fd, current_arch_start + truncate_to) == -1)
+ perror ("write cache");
goto bail5;
+ }
close(fd);
if (!FcAtomicReplaceOrig(atomic))
- goto bail5;
- FcStrFree ((FcChar8 *)cache_hashed);
+ goto bail4;
+ FcStrFree (cache_hashed);
FcAtomicUnlock (atomic);
FcAtomicDestroy (atomic);
return FcTrue;
bail5:
- free (header);
- bail4:
close (fd);
- bail3:
+ bail4:
FcAtomicUnlock (atomic);
- bail2:
+ bail3:
FcAtomicDestroy (atomic);
bail1:
- FcStrFree ((FcChar8 *)cache_hashed);
- bail0:
- unlink ((char *)cache_file);
- free (cache_file);
- if (current_dir_block)
- free (current_dir_block);
- bail:
+ FcStrFree (cache_hashed);
return FcFalse;
}
-static char *
-FcCacheMachineSignature ()
-{
- static char buf[MACHINE_SIGNATURE_SIZE];
- int32_t magic = ENDIAN_TEST;
- char * m = (char *)&magic;
-
- sprintf (buf, "%2x%2x%2x%2x "
- "%4x %4x %4x %4x %4x %4x %4x %4x %4x %4x %4x %4x "
- "%4x %4x %4x %4x %4x %4x %4x %4x\n",
- m[0], m[1], m[2], m[3],
- (unsigned int)sizeof (char),
- (unsigned int)sizeof (char *),
- (unsigned int)sizeof (int),
- (unsigned int)sizeof (FcPattern),
- (unsigned int)sizeof (FcPatternEltPtr),
- (unsigned int)sizeof (struct _FcPatternElt *),
- (unsigned int)sizeof (FcPatternElt),
- (unsigned int)sizeof (FcObjectPtr),
- (unsigned int)sizeof (FcValueListPtr),
- (unsigned int)sizeof (FcValue),
- (unsigned int)sizeof (FcValueBinding),
- (unsigned int)sizeof (struct _FcValueList *),
- (unsigned int)sizeof (FcCharSet),
- (unsigned int)sizeof (FcCharLeaf **),
- (unsigned int)sizeof (FcChar16 *),
- (unsigned int)sizeof (FcChar16),
- (unsigned int)sizeof (FcCharLeaf),
- (unsigned int)sizeof (FcChar32),
- (unsigned int)sizeof (FcCache),
- (unsigned int)sysconf(_SC_PAGESIZE));
-
- return buf;
-}
-
-static int banks_ptr = 0, banks_alloc = 0;
-int * _fcBankId = 0, * _fcBankIdx = 0;
-static const char ** bankDirs = 0;
+/*
+ * Hokey little macro trick to permit the definitions of C functions
+ * with the same name as CPP macros
+ */
+#define args(x...) (x)
-static FcBool
-FcCacheHaveBank (int bank)
+const FcChar8 *
+FcCacheDir args(const FcCache *c)
{
- int i;
-
- if (bank < FC_BANK_FIRST)
- return FcTrue;
-
- for (i = 0; i < banks_ptr; i++)
- if (_fcBankId[i] == bank)
- return FcTrue;
-
- return FcFalse;
+ return FcCacheDir (c);
}
-int
-FcCacheBankToIndexMTF (int bank)
+FcFontSet *
+FcCacheCopySet args(const FcCache *c)
{
- int i, j;
-
- for (i = 0; i < banks_ptr; i++)
- if (_fcBankId[_fcBankIdx[i]] == bank)
+ FcFontSet *old = FcCacheSet (c);
+ FcFontSet *new = FcFontSetCreate ();
+ int i;
+
+ if (!new)
+ return NULL;
+ for (i = 0; i < old->nfont; i++)
+ if (!FcFontSetAdd (new, FcFontSetFont (old, i)))
{
- int t = _fcBankIdx[i];
-
- for (j = i; j > 0; j--)
- _fcBankIdx[j] = _fcBankIdx[j-1];
- _fcBankIdx[0] = t;
- return t;
+ FcFontSetDestroy (new);
+ return NULL;
}
-
- if (banks_ptr >= banks_alloc)
- {
- int * b, * bidx;
- const char ** bds;
-
- b = realloc (_fcBankId, (banks_alloc + 4) * sizeof(int));
- if (!b)
- return -1;
- _fcBankId = b;
-
- bidx = realloc (_fcBankIdx, (banks_alloc + 4) * sizeof(int));
- if (!bidx)
- return -1;
- _fcBankIdx = bidx;
-
- bds = realloc (bankDirs, (banks_alloc + 4) * sizeof (char *));
- if (!bds)
- return -1;
- bankDirs = bds;
-
- banks_alloc += 4;
- }
-
- i = banks_ptr++;
- _fcBankId[i] = bank;
- _fcBankIdx[i] = i;
- return i;
+ return new;
}
-static void
-FcCacheAddBankDir (int bank, const char * dir)
+const FcChar8 *
+FcCacheSubdir args(const FcCache *c, int i)
{
- int bi = FcCacheBankToIndexMTF (bank);
-
- if (bi < 0)
- return;
+ return FcCacheSubdir (c, i);
+}
- bankDirs[bi] = (const char *)FcStrCopy ((FcChar8 *)dir);
+int
+FcCacheNumSubdir args(const FcCache *c)
+{
+ return c->dirs_count;
}
-const char *
-FcCacheFindBankDir (int bank)
+int
+FcCacheNumFont args(const FcCache *c)
{
- int bi = FcCacheBankToIndex (bank);
- return bankDirs[bi];
+ return FcCacheSet(c)->nfont;
}
/*
git.wh0rd.org / fontconfig.git / blobdiff