* PERFORMANCE OF THIS SOFTWARE.
*/
+#include "fcint.h"
+#include "../fc-arch/fcarch.h"
#include <fcntl.h>
#include <dirent.h>
-#include <sys/mman.h>
-#include <sys/utsname.h>
+#include <string.h>
#include <sys/types.h>
-#include <unistd.h>
-#include "fcint.h"
+#if defined(HAVE_MMAP) || defined(__CYGWIN__)
+# include <unistd.h>
+# include <sys/mman.h>
+#elif defined(_WIN32)
+# include <windows.h>
+#endif
#define ENDIAN_TEST 0x12345678
-#define MACHINE_SIGNATURE_SIZE 9 + 5*19 + 1
+#define MACHINE_SIGNATURE_SIZE (9 + 5*20 + 1)
+/* for when we don't have sysconf: */
+#define FC_HARDCODED_PAGESIZE 8192
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+static int
+FcDirCacheOpen (FcConfig *config, const FcChar8 *dir, FcChar8 **cache_path);
static off_t
FcCacheSkipToArch (int fd, const char * arch);
static FcBool
-FcCacheMoveDown (int fd, off_t start);
+FcCacheCopyOld (int fd, int fd_orig, off_t start);
static void *
FcDirCacheProduce (FcFontSet *set, FcCache * metadata);
static FcBool
-FcDirCacheConsume (int fd, FcFontSet *set);
-
-static FcBool
-FcDirCacheRead (FcFontSet * set, FcStrSet * dirs, const FcChar8 *dir);
+FcDirCacheConsume (int fd, const char * dir, FcFontSet *set, FcConfig *config);
static int
FcCacheNextOffset(off_t w);
static FcBool
FcCacheHaveBank (int bank);
+static void
+FcCacheAddBankDir (int bank, const char * dir);
+
+struct MD5Context {
+ FcChar32 buf[4];
+ FcChar32 bits[2];
+ unsigned char in[64];
+};
+
+static void MD5Init(struct MD5Context *ctx);
+static void MD5Update(struct MD5Context *ctx, unsigned char *buf, unsigned len);
+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 FcChar8 *
-FcCacheReadString (int fd, FcChar8 *dest, int len)
+static char *
+FcCacheReadString (int fd, char *dest, int len)
{
- FcChar8 c;
- FcBool escape;
- int size;
- int i;
+ int size;
+ int slen;
if (len == 0)
return 0;
-
- size = len;
- i = 0;
- escape = FcFalse;
- while (read (fd, &c, 1) == 1)
+
+ size = read (fd, dest, len-1);
+
+ if (size > 0)
{
- 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;
+ dest[size] = '\0';
+ slen = strlen (dest);
+
+ lseek (fd, slen - size + 1, SEEK_CUR);
+ return slen < len ? dest : 0;
}
+
return 0;
}
+static void
+FcCacheSkipString (int fd)
+{
+ char buf[256];
+ int size;
+ int slen;
+
+ while ( (size = read (fd, buf, sizeof (buf)-1)) > 0)
+ {
+ buf [size] = '\0';
+ slen = strlen (buf);
+ if (slen < size)
+ {
+ lseek (fd, slen - size + 1, SEEK_CUR);
+ return;
+ }
+ }
+}
+
static FcBool
-FcCacheWriteString (int fd, const FcChar8 *chars)
+FcCacheWriteString (int fd, const char *chars)
{
if (write (fd, chars, strlen(chars)+1) != strlen(chars)+1)
return FcFalse;
static void
FcGlobalCacheDirDestroy (FcGlobalCacheDir *d)
{
+ FcStrSetDestroy (d->subdirs);
FcMemFree (FC_MEM_STRING, strlen (d->name)+1);
free (d->name);
FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCacheDir));
FcGlobalCacheDirDestroy (d);
}
FcMemFree (FC_MEM_CACHE, sizeof (FcGlobalCache));
+ if (cache->fd != -1)
+ close (cache->fd);
free (cache);
}
void
FcGlobalCacheLoad (FcGlobalCache *cache,
FcStrSet *staleDirs,
- const FcChar8 *cache_file)
+ const FcChar8 *cache_file,
+ FcConfig *config)
{
- FcChar8 name_buf[8192];
+ 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;
+ char subdirName[FC_MAX_FILE_LEN + 1 + 12 + 1];
if (stat ((char *) cache_file, &cache_stat) < 0)
return;
- cache->fd = open ((char *) cache_file, O_RDONLY);
+ cache->fd = open ((char *) cache_file, O_RDONLY | O_BINARY);
if (cache->fd == -1)
return;
cache->updated = FcFalse;
+ if (!FcCacheReadString (cache->fd, name_buf, sizeof (name_buf)))
+ goto bail_and_destroy;
+ if (strcmp (name_buf, FC_GLOBAL_MAGIC_COOKIE) != 0)
+ goto bail_and_destroy;
+
current_arch_machine_name = FcCacheMachineSignature ();
current_arch_start = FcCacheSkipToArch(cache->fd,
current_arch_machine_name);
if (current_arch_start < 0)
- goto bail0;
+ goto bail1;
lseek (cache->fd, current_arch_start, SEEK_SET);
- FcCacheReadString (cache->fd, candidate_arch_machine_name,
- sizeof (candidate_arch_machine_name));
+ if (!FcCacheReadString (cache->fd, candidate_arch_machine_name,
+ sizeof (candidate_arch_machine_name)))
+ goto bail_and_destroy;
if (strlen(candidate_arch_machine_name) == 0)
- goto bail0;
+ goto bail_and_destroy;
while (1)
{
off_t targ;
- FcCacheReadString (cache->fd, name_buf, sizeof (name_buf));
- if (!strlen(name_buf))
+ if (!FcCacheReadString (cache->fd, name_buf, sizeof (name_buf)) ||
+ !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)
+ dir_stat.st_mtime > cache_stat.st_mtime ||
+ (config_time.set && cache_stat.st_mtime < config_time.time))
{
FcCache md;
+ off_t off;
+
+ FcStrSetAdd (staleDirs, (FcChar8 *)name_buf);
- FcStrSetAdd (staleDirs, FcStrCopy (name_buf));
- read (cache->fd, &md, sizeof (FcCache));
- lseek (cache->fd, FcCacheNextOffset (lseek(cache->fd, 0, SEEK_CUR)) + md.count, SEEK_SET);
- continue;
+ /* skip subdirs */
+ while (FcCacheReadString (cache->fd, subdirName,
+ sizeof (subdirName)) &&
+ strlen (subdirName))
+ ;
+
+ if (read (cache->fd, &md, sizeof (FcCache)) != sizeof(FcCache))
+ {
+ perror ("read metadata");
+ goto bail1;
+ }
+ off = FcCacheNextOffset (lseek(cache->fd, 0, SEEK_CUR)) + md.count;
+ if (lseek (cache->fd, off, SEEK_SET) != off)
+ {
+ perror ("lseek");
+ goto bail1;
+ }
+ continue;
}
d = malloc (sizeof (FcGlobalCacheDir));
d->next = cache->dirs;
cache->dirs = d;
- d->name = FcStrCopy (name_buf);
+ d->name = (char *)FcStrCopy ((FcChar8 *)name_buf);
d->ent = 0;
+ d->state = FcGCDirFileRead;
+
+ d->subdirs = FcStrSetCreate();
+ do
+ {
+ if (!FcCacheReadString (cache->fd, subdirName,
+ sizeof (subdirName)) ||
+ !strlen (subdirName))
+ break;
+ FcStrSetAdd (d->subdirs, (FcChar8 *)subdirName);
+ } while (1);
+
d->offset = lseek (cache->fd, 0, SEEK_CUR);
if (read (cache->fd, &d->metadata, sizeof (FcCache)) != sizeof (FcCache))
goto bail1;
free (d);
}
cache->dirs = 0;
- bail0:
+
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;
+
}
FcBool
-FcGlobalCacheReadDir (FcFontSet *set, FcStrSet *dirs, FcGlobalCache * cache, const FcChar8 *dir, FcConfig *config)
+FcGlobalCacheReadDir (FcFontSet *set, FcStrSet *dirs, FcGlobalCache * cache, const char *dir, FcConfig *config)
{
- FcGlobalCacheDir *d;
- FcBool ret = FcFalse;
+ FcGlobalCacheDir *d;
+ int i;
if (cache->fd == -1)
return FcFalse;
for (d = cache->dirs; d; d = d->next)
{
- if (strncmp (d->name, dir, strlen(dir)) == 0)
+ if (strcmp (d->name, dir) == 0)
{
- lseek (cache->fd, d->offset, SEEK_SET);
- if (!FcDirCacheConsume (cache->fd, set))
+ if (d->state == FcGCDirDisabled)
return FcFalse;
- if (strcmp (d->name, dir) == 0)
- ret = FcTrue;
+
+ if (d->state == FcGCDirFileRead)
+ {
+ lseek (cache->fd, d->offset, SEEK_SET);
+ if (!FcDirCacheConsume (cache->fd, d->name, set, config))
+ return FcFalse;
+
+ for (i = 0; i < d->subdirs->num; i++)
+ FcStrSetAdd (dirs, (FcChar8 *)d->subdirs->strs[i]);
+
+ d->state = FcGCDirConsumed;
+ }
+ return FcTrue;
}
}
- return ret;
+ return FcFalse;
}
-FcBool
-FcGlobalCacheUpdate (FcGlobalCache *cache,
- const FcChar8 *name,
- FcFontSet *set)
+static FcGlobalCacheDir *
+FcGlobalCacheDirFind (FcGlobalCache *cache, const char *name)
{
FcGlobalCacheDir * d;
- if (!set->nfont)
- return FcTrue;
+ if (!cache || !name)
+ return NULL;
for (d = cache->dirs; d; d = d->next)
- {
- if (strcmp(d->name, name) == 0)
- break;
- }
+ if (strcmp((const char *)d->name, (const char *)name) == 0)
+ return d;
+
+ return NULL;
+ }
+
+FcBool
+FcGlobalCacheUpdate (FcGlobalCache *cache,
+ FcStrSet *dirs,
+ const char *name,
+ FcFontSet *set,
+ FcConfig *config)
+{
+ FcGlobalCacheDir *d;
+ int i;
+
+ d = FcGlobalCacheDirFind (cache, name);
if (!d)
{
return FcFalse;
d->next = cache->dirs;
cache->dirs = d;
+ } else {
+ /* free old resources */
+ FcStrFree ((FcChar8 *)d->name);
+ free (d->ent);
+ FcStrSetDestroy (d->subdirs);
}
cache->updated = FcTrue;
- d->name = FcStrCopy (name);
+ d->name = (char *)FcStrCopy ((FcChar8 *)name);
d->ent = FcDirCacheProduce (set, &d->metadata);
d->offset = 0;
+ d->subdirs = FcStrSetCreate();
+ d->state = FcGCDirUpdated;
+ for (i = 0; i < dirs->num; i++)
+ FcStrSetAdd (d->subdirs, dirs->strs[i]);
return FcTrue;
}
FcBool
FcGlobalCacheSave (FcGlobalCache *cache,
- const FcChar8 *cache_file)
+ const FcChar8 *cache_file,
+ FcConfig *config)
{
- int fd;
+ int fd, fd_orig;
FcGlobalCacheDir *dir;
FcAtomic *atomic;
off_t current_arch_start = 0, truncate_to;
atomic = FcAtomicCreate (cache_file);
if (!atomic)
- goto bail0;
+ return FcFalse;
+
if (!FcAtomicLock (atomic))
goto bail1;
- fd = open ((char *) FcAtomicNewFile(atomic), O_RDWR | O_CREAT,
+ fd = open ((char *) FcAtomicNewFile(atomic), O_RDWR | O_CREAT | O_BINARY,
S_IRUSR | S_IWUSR);
if (fd == -1)
goto bail2;
+ FcCacheWriteString (fd, FC_GLOBAL_MAGIC_COOKIE);
+
+ fd_orig = open ((char *) FcAtomicOrigFile(atomic), O_RDONLY | O_BINARY);
current_arch_machine_name = FcCacheMachineSignature ();
- current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name);
+ 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, 0, SEEK_END));
+ {
+ off_t i = lseek(fd_orig, 0, SEEK_END);
+ if (i < strlen (FC_GLOBAL_MAGIC_COOKIE)+1)
+ i = strlen (FC_GLOBAL_MAGIC_COOKIE)+1;
+ current_arch_start = FcCacheNextOffset (i);
+ }
- if (!FcCacheMoveDown(fd, current_arch_start))
- goto bail2;
+ if (!FcCacheCopyOld(fd, fd_orig, current_arch_start))
+ goto bail3;
current_arch_start = lseek(fd, 0, SEEK_CUR);
+#if defined (HAVE_FTRUNCATE)
if (ftruncate (fd, current_arch_start) == -1)
- goto bail2;
+ goto bail3;
+#else
+#if defined (HAVE_CHSIZE)
+ if (chsize (fd, current_arch_start) == -1)
+ goto bail3;
+#else
+ goto bail3;
+#endif
+#endif
header = malloc (10 + strlen (current_arch_machine_name));
if (!header)
- goto bail1;
+ goto bail3;
truncate_to = current_arch_start + strlen(current_arch_machine_name) + 11;
for (dir = cache->dirs; dir; dir = dir->next)
{
+ int i;
+
+ if (dir->state == FcGCDirDisabled)
+ continue;
truncate_to += strlen(dir->name) + 1;
truncate_to += sizeof (FcCache);
- truncate_to = FcCacheNextOffset (current_arch_start + truncate_to);
+ truncate_to = FcCacheNextOffset (truncate_to);
truncate_to += dir->metadata.count;
+
+ for (i = 0; i < dir->subdirs->size; i++)
+ truncate_to += strlen((char *)dir->subdirs->strs[i]) + 1;
+ truncate_to ++;
}
truncate_to -= current_arch_start;
sprintf (header, "%8x ", (int)truncate_to);
strcat (header, current_arch_machine_name);
if (!FcCacheWriteString (fd, header))
- goto bail1;
+ goto bail4;
+
+ free (header);
for (dir = cache->dirs; dir; dir = dir->next)
{
- if (dir->ent)
- {
- 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);
- }
+ int i;
+ const char * d;
+ off_t off;
+
+ if (!dir->name || dir->state == FcGCDirDisabled)
+ continue;
+ d = dir->name;
+ if (!d)
+ continue;
+
+ if (dir->metadata.count && !dir->ent)
+ {
+ if (dir->state == FcGCDirUpdated || fd_orig < 0)
+ {
+ fprintf(stderr, "Invalid metadata entry for %s, skipping...\n", d);
+ continue;
+ }
+ /* copy the old content */
+ dir->ent = malloc (dir->metadata.count);
+ if (!dir->ent)
+ {
+ perror("malloc error");
+ continue;
+ }
+ off = FcCacheNextOffset (dir->offset + sizeof(FcCache));
+ if (lseek (fd_orig, off, SEEK_SET) != off)
+ {
+ perror("lseek");
+ free(dir->ent);
+ continue;
+ }
+ if (read (fd_orig, dir->ent, dir->metadata.count)
+ != dir->metadata.count)
+ {
+ perror("read");
+ free(dir->ent);
+ continue;
+ }
+ }
+
+ FcCacheWriteString (fd, d);
+
+ for (i = 0; i < dir->subdirs->size; i++)
+ FcCacheWriteString (fd, (char *)dir->subdirs->strs[i]);
+ FcCacheWriteString (fd, "");
+
+ if (write (fd, &dir->metadata, sizeof(FcCache)) != sizeof(FcCache))
+ {
+ perror ("write metadata");
+ free (dir->ent);
+ continue;
+ }
+ off = FcCacheNextOffset (lseek(fd, 0, SEEK_CUR));
+ if (lseek (fd, off, SEEK_SET) != off)
+ {
+ perror ("lseek");
+ free (dir->ent);
+ continue;
+ }
+ if (dir->metadata.count)
+ {
+ if (write (fd, dir->ent, dir->metadata.count) != dir->metadata.count)
+ {
+ perror ("write dirent");
+ free (dir->ent);
+ continue;
+ }
+ }
+ free (dir->ent);
}
FcCacheWriteString (fd, "");
if (close (fd) == -1)
- goto bail3;
+ goto bail25;
+
+ close (fd_orig);
+ fd_orig = -1;
if (!FcAtomicReplaceOrig (atomic))
- goto bail3;
+ goto bail25;
FcAtomicUnlock (atomic);
FcAtomicDestroy (atomic);
cache->updated = FcFalse;
return FcTrue;
-bail3:
+ bail4:
+ free (header);
+ bail3:
+ if (fd_orig != -1)
+ close (fd_orig);
+
+ close (fd);
+ bail25:
FcAtomicDeleteNew (atomic);
-bail2:
+ bail2:
FcAtomicUnlock (atomic);
-bail1:
+ bail1:
FcAtomicDestroy (atomic);
-bail0:
return FcFalse;
}
-#define PAGESIZE 8192
/*
* Find the next presumably-mmapable offset after the supplied file
* position.
static int
FcCacheNextOffset(off_t w)
{
- if (w % PAGESIZE == 0)
+ static long pagesize = -1;
+
+ if (w == -1)
+ return w;
+
+ if (pagesize == -1)
+#if defined (HAVE_SYSCONF)
+ pagesize = sysconf(_SC_PAGESIZE);
+#else
+ pagesize = FC_HARDCODED_PAGESIZE;
+#endif
+ if (w % pagesize == 0)
return w;
else
- return ((w / PAGESIZE)+1)*PAGESIZE;
+ return ((w / pagesize)+1)*pagesize;
}
/* return the address of the segment for the provided arch,
char * candidate_arch;
off_t current_arch_start = 0;
+ lseek (fd, 0, SEEK_SET);
+ FcCacheSkipString (fd);
+ current_arch_start = lseek (fd, 0, SEEK_CUR);
+
/* skip arches that are not the current arch */
while (1)
{
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;
if (strcmp (candidate_arch, arch)==0)
return current_arch_start;
current_arch_start += bs;
+ current_arch_start = FcCacheNextOffset (current_arch_start);
}
-
- 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
-FcCacheMoveDown (int fd, off_t start)
+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);
+ FcCacheSkipString (fd); FcCacheSkipString (fd_orig);
+ 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)
return FcFalse;
}
+/* Does not check that the cache has the appropriate arch section. */
FcBool
-FcDirCacheValid (const FcChar8 *dir)
+FcDirCacheValid (const FcChar8 *dir, FcConfig *config)
{
- FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
- struct stat file_stat, dir_stat;
+ int fd;
- if (stat ((char *) dir, &dir_stat) < 0)
+ fd = FcDirCacheOpen (config, dir, NULL);
+
+ if (fd < 0)
+ return FcFalse;
+ close (fd);
+
+ return FcTrue;
+}
+
+/* Assumes that the cache file in 'dir' exists.
+ * Checks that the cache has the appropriate arch section. */
+FcBool
+FcDirCacheHasCurrentArch (const FcChar8 *dir, FcConfig *config)
+{
+ int fd;
+ off_t current_arch_start;
+ char *current_arch_machine_name;
+ FcCache metadata;
+ char subdirName[FC_MAX_FILE_LEN + 1 + 12 + 1];
+
+ fd = FcDirCacheOpen (config, dir, NULL);
+ if (fd < 0)
+ goto bail;
+
+ current_arch_machine_name = FcCacheMachineSignature();
+ current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name);
+
+ if (current_arch_start >= 0)
{
- FcStrFree (cache_file);
- return FcFalse;
+ if (lseek (fd, current_arch_start, SEEK_SET) != current_arch_start)
+ goto bail1;
+
+ FcCacheSkipString (fd);
+
+ while (FcCacheReadString (fd, subdirName, sizeof (subdirName)) && strlen (subdirName) > 0)
+ ;
+
+ if (read(fd, &metadata, sizeof(FcCache)) != sizeof(FcCache))
+ goto bail1;
+
+ if (metadata.magic != FC_CACHE_MAGIC)
+ goto bail1;
}
- if (stat ((char *) cache_file, &file_stat) < 0)
- {
- FcStrFree (cache_file);
+
+ close (fd);
+
+ if (current_arch_start < 0)
return FcFalse;
+
+ return FcTrue;
+
+ bail1:
+ close (fd);
+ bail:
+ return FcFalse;
+}
+
+#define CACHEBASE_LEN (1 + 32 + 1 + sizeof (FC_ARCHITECTURE) + sizeof (FC_CACHE_SUFFIX))
+
+static const char bin2hex[] = { '0', '1', '2', '3',
+ '4', '5', '6', '7',
+ '8', '9', 'a', 'b',
+ 'c', 'd', 'e', 'f' };
+
+static FcChar8 *
+FcDirCacheBasename (const FcChar8 * dir, FcChar8 cache_base[CACHEBASE_LEN])
+{
+ unsigned char hash[16];
+ FcChar8 *hex_hash;
+ int cnt;
+ struct MD5Context ctx;
+
+ MD5Init (&ctx);
+ MD5Update (&ctx, (unsigned char *)dir, strlen ((char *) dir));
+
+ MD5Final (hash, &ctx);
+
+ cache_base[0] = '/';
+ hex_hash = cache_base + 1;
+ for (cnt = 0; cnt < 16; ++cnt)
+ {
+ hex_hash[2*cnt ] = bin2hex[hash[cnt] >> 4];
+ hex_hash[2*cnt+1] = bin2hex[hash[cnt] & 0xf];
}
- 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)
+ hex_hash[2*cnt] = 0;
+ strcat ((char *) cache_base, "-" FC_ARCHITECTURE FC_CACHE_SUFFIX);
+
+ return cache_base;
+}
+
+FcBool
+FcDirCacheUnlink (const FcChar8 *dir, FcConfig *config)
+{
+ int fd = -1;
+ FcChar8 *cache_hashed = NULL;
+ FcChar8 cache_base[CACHEBASE_LEN];
+ FcStrList *list;
+ FcChar8 *cache_dir;
+ char dir_buf[FC_MAX_FILE_LEN];
+
+ FcDirCacheBasename (dir, cache_base);
+
+ list = FcStrListCreate (config->cacheDirs);
+ if (!list)
return FcFalse;
+
+ while ((cache_dir = FcStrListNext (list)))
+ {
+ cache_hashed = FcStrPlus (cache_dir, cache_base);
+ if (!cache_hashed)
+ break;
+ fd = open((char *) cache_hashed, O_RDONLY | O_BINARY);
+ FcStrFree (cache_hashed);
+ if (fd >= 0)
+ {
+ if (FcCacheReadString (fd, dir_buf, sizeof (dir_buf)) &&
+ strcmp (dir_buf, (char *) dir) == 0)
+ {
+ close (fd);
+ if (unlink ((char *) cache_hashed) < 0)
+ break;
+ } else
+ close (fd);
+ }
+ }
+ FcStrListDone (list);
+ /* return FcFalse if something went wrong */
+ if (cache_dir)
+ return FcFalse;
return FcTrue;
}
static int
FcCacheReadDirs (FcConfig * config, FcGlobalCache * cache,
- FcStrList *list, FcFontSet * set)
+ FcStrList *list, FcFontSet * set, FcStrSet *processed_dirs)
{
int ret = 0;
FcChar8 *dir;
- FcChar8 *file, *base;
FcStrSet *subdirs;
FcStrList *sublist;
- struct stat statb;
+ FcGlobalCacheDir *d;
/*
* Read in the results from 'list'.
*/
while ((dir = FcStrListNext (list)))
{
- /* freed below */
- file = (FcChar8 *) malloc (strlen ((char *) dir) + 1 + FC_MAX_FILE_LEN + 1);
- if (!file)
- return FcFalse;
+ if (!FcConfigAcceptFilename (config, dir))
+ continue;
- strcpy ((char *) file, (char *) dir);
- strcat ((char *) file, "/");
- base = file + strlen ((char *) file);
+ /* Skip this directory if already updated
+ * to avoid the looped directories via symlinks
+ * Clearly a dir not in fonts.conf shouldn't be globally cached.
+ */
+
+ if (FcStrSetMember (processed_dirs, dir))
+ continue;
+ if (!FcStrSetAdd (processed_dirs, dir))
+ continue;
subdirs = FcStrSetCreate ();
if (!subdirs)
{
fprintf (stderr, "Can't create directory set\n");
ret++;
- free (file);
continue;
}
- if (access ((char *) dir, X_OK) < 0)
+ if (FcDirCacheRead (set, subdirs, dir, config))
{
- switch (errno) {
- case ENOENT:
- case ENOTDIR:
- case EACCES:
- break;
- default:
- fprintf (stderr, "\"%s\": ", dir);
- perror ("");
- ret++;
+ /* if an old entry is found in the global cache, disable it */
+ if ((d = FcGlobalCacheDirFind (cache, (const char *)dir)) != NULL)
+ {
+ d->state = FcGCDirDisabled;
+ /* save the updated config later without this entry */
+ cache->updated = FcTrue;
}
- FcStrSetDestroy (subdirs);
- free (file);
- continue;
}
- if (stat ((char *) dir, &statb) == -1)
- {
- fprintf (stderr, "\"%s\": ", dir);
- perror ("");
- FcStrSetDestroy (subdirs);
- ret++;
- free (file);
- continue;
- }
- if (!S_ISDIR (statb.st_mode))
- {
- fprintf (stderr, "\"%s\": not a directory, skipping\n", dir);
- FcStrSetDestroy (subdirs);
- free (file);
- continue;
- }
- if (!FcDirCacheValid (dir) || !FcDirCacheRead (set, subdirs, dir))
+ else
{
if (FcDebug () & FC_DBG_FONTSET)
printf ("cache scan dir %s\n", dir);
{
fprintf (stderr, "Can't create subdir list in \"%s\"\n", dir);
ret++;
- free (file);
continue;
}
- ret += FcCacheReadDirs (config, cache, sublist, set);
- free (file);
+ ret += FcCacheReadDirs (config, cache, sublist, set, processed_dirs);
}
FcStrListDone (list);
return ret;
FcFontSet *
FcCacheRead (FcConfig *config, FcGlobalCache * cache)
{
- FcFontSet * s = FcFontSetCreate();
+ FcFontSet *s = FcFontSetCreate();
+ FcStrSet *processed_dirs;
+
if (!s)
return 0;
- if (FcCacheReadDirs (config, cache, FcConfigGetConfigDirs (config), s))
+ processed_dirs = FcStrSetCreate();
+ if (!processed_dirs)
goto bail;
+ if (FcCacheReadDirs (config, cache, FcConfigGetConfigDirs (config), s, processed_dirs))
+ goto bail1;
+
+ FcStrSetDestroy (processed_dirs);
return s;
+ bail1:
+ FcStrSetDestroy (processed_dirs);
bail:
FcFontSetDestroy (s);
return 0;
}
-/* read serialized state from the cache file */
-static FcBool
-FcDirCacheRead (FcFontSet * set, FcStrSet * dirs, const FcChar8 *dir)
+/* Opens the cache file for 'dir' for reading.
+ * This searches the list of cache dirs for the relevant cache file,
+ * returning the first one found.
+ */
+static int
+FcDirCacheOpen (FcConfig *config, const FcChar8 *dir, FcChar8 **cache_path)
{
- FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
- int fd;
- char * current_arch_machine_name;
- char candidate_arch_machine_name[9+MACHINE_SIGNATURE_SIZE];
- off_t current_arch_start = 0;
- FcChar8 subdirName[FC_MAX_FILE_LEN + 1 + 12 + 1];
+ int fd = -1;
+ FcChar8 *cache_hashed = NULL;
+ FcChar8 cache_base[CACHEBASE_LEN];
+ FcStrList *list;
+ FcChar8 *cache_dir;
+ char dir_buf[FC_MAX_FILE_LEN];
+ struct stat file_stat, dir_stat;
- if (!cache_file)
- goto bail;
+ if (stat ((char *) dir, &dir_stat) < 0)
+ return -1;
- current_arch_machine_name = FcCacheMachineSignature();
- fd = open(cache_file, O_RDONLY);
- if (fd == -1)
- goto bail;
+ FcDirCacheBasename (dir, cache_base);
- current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name);
+ list = FcStrListCreate (config->cacheDirs);
+ if (!list)
+ return -1;
+
+ while ((cache_dir = FcStrListNext (list)))
+ {
+ cache_hashed = FcStrPlus (cache_dir, cache_base);
+ if (!cache_hashed)
+ break;
+ fd = open((char *) cache_hashed, O_RDONLY | O_BINARY);
+ if (fd >= 0) {
+ if (fstat (fd, &file_stat) >= 0 &&
+ dir_stat.st_mtime <= file_stat.st_mtime)
+ {
+ break;
+ }
+ close (fd);
+ fd = -1;
+ }
+ FcStrFree (cache_hashed);
+ cache_hashed = NULL;
+ }
+ FcStrListDone (list);
+
+ if (fd < 0)
+ return -1;
+
+ if (!FcCacheReadString (fd, dir_buf, sizeof (dir_buf)) ||
+ strcmp (dir_buf, (char *) dir) != 0)
+ {
+ close (fd);
+ FcStrFree (cache_hashed);
+ return -1;
+ }
+
+ if (cache_path)
+ *cache_path = cache_hashed;
+ else
+ FcStrFree (cache_hashed);
+
+ return fd;
+}
+
+/* read serialized state from the cache file */
+FcBool
+FcDirCacheRead (FcFontSet * set, FcStrSet * dirs, const FcChar8 *dir, FcConfig *config)
+{
+ 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];
+
+ fd = FcDirCacheOpen (config, dir, NULL);
+ 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;
sizeof (candidate_arch_machine_name)) == 0)
goto bail1;
- while (strlen(FcCacheReadString (fd, subdirName, sizeof (subdirName))) > 0)
- FcStrSetAdd (dirs, subdirName);
+ while (FcCacheReadString (fd, subdirName, sizeof (subdirName)) && strlen (subdirName) > 0)
+ FcStrSetAdd (dirs, (FcChar8 *)subdirName);
- if (!FcDirCacheConsume (fd, set))
+ 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;
}
static FcBool
-FcDirCacheConsume (int fd, FcFontSet *set)
+FcDirCacheConsume (int fd, const char * dir, FcFontSet *set, FcConfig *config)
{
FcCache metadata;
void * current_dir_block;
- off_t pos;
+ off_t pos, endpos;
- read(fd, &metadata, sizeof(FcCache));
+ if (read(fd, &metadata, sizeof(FcCache)) != sizeof(FcCache))
+ return FcFalse;
if (metadata.magic != FC_CACHE_MAGIC)
return FcFalse;
if (!metadata.count)
+ {
+ pos = FcCacheNextOffset (lseek(fd, 0, SEEK_CUR));
+ lseek (fd, pos, SEEK_SET);
+ if (config)
+ FcConfigAddFontDir (config, (FcChar8 *)dir);
return FcTrue;
+ }
pos = FcCacheNextOffset (lseek(fd, 0, SEEK_CUR));
+
+ /* This is not failsafe (multi-arches can break it),
+ * but fd has got to have at least as many bytes as
+ * metadata.count, or something's going to go horribly wrong. */
+ if (pos == (off_t)-1)
+ return FcFalse;
+
+ endpos = lseek (fd, 0, SEEK_END);
+ if (endpos == (off_t)-1 || endpos - pos < metadata.count)
+ return FcFalse;
+ if (lseek (fd, pos, SEEK_SET) == -1)
+ return FcFalse;
+
+#if defined(HAVE_MMAP) || defined(__CYGWIN__)
current_dir_block = mmap (0, metadata.count,
PROT_READ, MAP_SHARED, fd, pos);
if (current_dir_block == MAP_FAILED)
return FcFalse;
-
- if (!FcFontSetUnserialize (metadata, set, current_dir_block))
+#elif defined(_WIN32)
+ {
+ HANDLE hFileMap;
+
+ hFileMap = CreateFileMapping((HANDLE) _get_osfhandle(fd), NULL, PAGE_READONLY, 0, 0, NULL);
+ if (hFileMap == NULL)
+ return FcFalse;
+
+ current_dir_block = MapViewOfFile (hFileMap, FILE_MAP_READ, 0, 0, metadata.count + pos);
+ if (current_dir_block == NULL)
+ {
+ CloseHandle (hFileMap);
+ return FcFalse;
+ }
+
+ current_dir_block = (void *)((char *)current_dir_block + pos);
+ }
+#else
+ current_dir_block = malloc (metadata.count);
+ if (!current_dir_block)
return FcFalse;
+ /* could also use CreateMappedViewOfFile under MinGW... */
+ if (read (fd, current_dir_block, metadata.count) != metadata.count)
+ goto bail;
+#endif
+ lseek (fd, pos+metadata.count, SEEK_SET);
+
+ FcCacheAddBankDir (metadata.bank, dir);
+ if (config)
+ FcConfigAddFontDir (config, (FcChar8 *)dir);
+
+ if (!FcFontSetUnserialize (&metadata, set, current_dir_block))
+ goto bail;
+
return FcTrue;
+ bail:
+#if !(defined(HAVE_MMAP) || defined(__CYGWIN__))
+ free (current_dir_block);
+#endif
+ return FcFalse;
}
static void *
FcDirCacheProduce (FcFontSet *set, FcCache *metadata)
{
void * current_dir_block, * final_dir_block;
- static int rand_state = 0;
- int bank;
+ static unsigned int rand_state = 0;
+ int bank, needed_bytes_no_align;
+#if defined (HAVE_RAND_R)
if (!rand_state)
rand_state = time(0L);
bank = rand_r(&rand_state);
while (FcCacheHaveBank(bank))
bank = rand_r(&rand_state);
+#else
+ if (!rand_state)
+ {
+ rand_state = 1;
+ srand (time (0L));
+ }
+ bank = rand();
+
+ while (FcCacheHaveBank(bank))
+ bank = rand();
+#endif
memset (metadata, 0, sizeof(FcCache));
FcFontSetNewBank();
- metadata->count = FcFontSetNeededBytes (set);
+ needed_bytes_no_align = FcFontSetNeededBytes (set);
+ metadata->count = needed_bytes_no_align +
+ FcFontSetNeededBytesAlign ();
metadata->magic = FC_CACHE_MAGIC;
metadata->bank = bank;
- if (!metadata->count) /* not a failure, no fonts to write */
+ if (!needed_bytes_no_align) /* not a failure, no fonts to write */
+ {
+ /* no, you don't really need to write any bytes at all. */
+ metadata->count = 0;
return 0;
+ }
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 ((char *)current_dir_block + metadata->count != final_dir_block)
+ if ((void *)((char *)current_dir_block+metadata->count) < final_dir_block)
goto bail;
if (!FcFontSetSerialize (bank, set))
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 (FcFontSet *set, FcStrSet *dirs, const FcChar8 *dir, FcConfig *config)
{
- FcChar8 *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
- int fd, i;
- FcCache metadata;
- off_t current_arch_start = 0, truncate_to;
- char * current_arch_machine_name, * header;
- void * current_dir_block;
+ FcChar8 cache_base[CACHEBASE_LEN];
+ FcChar8 *cache_hashed;
+ int fd, fd_orig, i, dirs_count;
+ FcAtomic *atomic;
+ FcCache metadata;
+ off_t current_arch_start = 0, truncate_to;
+ FcStrList *list;
+ char *current_arch_machine_name, * header;
+ void *current_dir_block = 0;
+ FcChar8 *cache_dir = NULL;
+ FcChar8 *test_dir;
- if (!cache_file)
- goto bail;
+ /*
+ * Write it to the first directory in the list which is writable
+ */
+
+ list = FcStrListCreate (config->cacheDirs);
+ if (!list)
+ return FcFalse;
+ 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;
+ FcDirCacheBasename (dir, cache_base);
+ cache_hashed = FcStrPlus (cache_dir, cache_base);
+ if (!cache_hashed)
+ return FcFalse;
current_dir_block = FcDirCacheProduce (set, &metadata);
- if (!metadata.count)
- {
- unlink (cache_file);
- free (cache_file);
- return FcTrue;
- }
-
- if (!current_dir_block)
- goto bail;
+ if (metadata.count && !current_dir_block)
+ goto bail1;
if (FcDebug () & FC_DBG_CACHE)
- printf ("FcDirCacheWriteDir cache_file \"%s\"\n", cache_file);
+ printf ("FcDirCacheWriteDir dir \"%s\" file \"%s\"\n",
+ dir, cache_hashed);
- fd = open(cache_file, O_RDWR | O_CREAT, 0666);
+ atomic = FcAtomicCreate ((FcChar8 *)cache_hashed);
+ if (!atomic)
+ goto bail1;
+
+ if (!FcAtomicLock (atomic))
+ goto bail2;
+
+ /* open the original file to save relevant portions */
+ fd_orig = open((char *)FcAtomicOrigFile (atomic), O_RDONLY | O_BINARY);
+
+ fd = open((char *)FcAtomicNewFile (atomic), O_RDWR | O_CREAT | O_BINARY, 0666);
if (fd == -1)
- goto bail0;
+ goto bail3;
+
+ FcCacheWriteString (fd, (char *) dir);
current_arch_machine_name = FcCacheMachineSignature ();
- current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name);
+ 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, 0, SEEK_END));
+ {
+ off_t offset = lseek(fd_orig, 0, SEEK_END);
+ current_arch_start = FcCacheNextOffset (offset);
+ }
- if (!FcCacheMoveDown(fd, current_arch_start))
- goto bail0;
+ 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 defined (HAVE_FTRUNCATE)
if (ftruncate (fd, current_arch_start) == -1)
- goto bail0;
+ goto bail4;
+#else
+#if defined (HAVE_CHSIZE)
+ if (chsize (fd, current_arch_start) == -1)
+ goto bail4;
+#else
+ goto bail4;
+#endif
+#endif
+
+ /* 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)) + metadata.count) - current_arch_start;
+ 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)
- goto bail0;
+ goto bail4;
sprintf (header, "%8x ", (int)truncate_to);
strcat (header, current_arch_machine_name);
if (!FcCacheWriteString (fd, header))
- goto bail1;
+ goto bail5;
for (i = 0; i < dirs->size; i++)
- FcCacheWriteString (fd, dirs->strs[i]);
+ FcCacheWriteString (fd, (char *)dirs->strs[i]);
FcCacheWriteString (fd, "");
- write (fd, &metadata, sizeof(FcCache));
- lseek (fd, FcCacheNextOffset (lseek(fd, 0, SEEK_END)), SEEK_SET);
- write (fd, current_dir_block, metadata.count);
- free (current_dir_block);
+ if (write (fd, &metadata, sizeof(FcCache)) != sizeof(FcCache))
+ {
+ perror("write metadata");
+ goto bail5;
+ }
+ if (metadata.count)
+ {
+ off_t off = FcCacheNextOffset (lseek(fd, 0, SEEK_END));
+ if (lseek (fd, off, SEEK_SET) != off)
+ perror("lseek");
+ else if (write (fd, current_dir_block, metadata.count) !=
+ metadata.count)
+ perror("write current_dir_block");
+ free (current_dir_block);
+ current_dir_block = 0;
+ }
/* this actually serves to pad out the cache file, if needed */
+#if defined (HAVE_FTRUNCATE)
if (ftruncate (fd, current_arch_start + truncate_to) == -1)
- goto bail1;
+ goto bail5;
+#else
+#if defined (HAVE_CHSIZE)
+ if (chsize (fd, current_arch_start + truncate_to) == -1)
+ goto bail5;
+#else
+ goto bail5;
+#endif
+#endif
+ free (header);
close(fd);
+ if (!FcAtomicReplaceOrig(atomic))
+ goto bail3;
+ FcStrFree ((FcChar8 *)cache_hashed);
+ FcAtomicUnlock (atomic);
+ FcAtomicDestroy (atomic);
return FcTrue;
- bail1:
+ bail5:
free (header);
- bail0:
- free (current_dir_block);
- bail:
- unlink (cache_file);
- free (cache_file);
+ bail4:
+ close (fd);
+ bail3:
+ FcAtomicUnlock (atomic);
+ bail2:
+ FcAtomicDestroy (atomic);
+ bail1:
+ FcStrFree ((FcChar8 *)cache_hashed);
+ if (current_dir_block)
+ free (current_dir_block);
return FcFalse;
}
FcCacheMachineSignature ()
{
static char buf[MACHINE_SIGNATURE_SIZE];
- int magic = ENDIAN_TEST;
+ 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\n",
+ "%4x %4x %4x %4x %4x %4x %4x %4x\n",
m[0], m[1], m[2], m[3],
- sizeof (char),
- sizeof (char *),
- sizeof (int),
- sizeof (FcPattern),
- sizeof (FcPatternEltPtr),
- sizeof (struct _FcPatternElt *),
- sizeof (FcPatternElt),
- sizeof (FcObjectPtr),
- sizeof (FcValueListPtr),
- sizeof (FcValue),
- sizeof (FcValueBinding),
- sizeof (struct _FcValueList *),
- sizeof (FcCharSet),
- sizeof (FcCharLeaf **),
- sizeof (FcChar16 *),
- sizeof (FcChar16),
- sizeof (FcCharLeaf),
- sizeof (FcChar32),
- sizeof (FcCache));
+ (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),
+#if defined (HAVE_SYSCONF)
+ (unsigned int)sysconf(_SC_PAGESIZE));
+#else
+ (unsigned int)FC_HARDCODED_PAGESIZE);
+#endif
return buf;
}
static int banks_ptr = 0, banks_alloc = 0;
-static int * bankId = 0;
+int * _fcBankId = 0, * _fcBankIdx = 0;
+static const char ** bankDirs = 0;
static FcBool
FcCacheHaveBank (int bank)
return FcTrue;
for (i = 0; i < banks_ptr; i++)
- if (bankId[i] == bank)
+ if (_fcBankId[i] == bank)
return FcTrue;
return FcFalse;
}
int
-FcCacheBankToIndex (int bank)
+FcCacheBankToIndexMTF (int bank)
{
- static int lastBank = FC_BANK_DYNAMIC, lastIndex = -1;
- int i;
- int * b;
-
- if (bank == lastBank)
- return lastIndex;
+ int i, j;
for (i = 0; i < banks_ptr; i++)
- if (bankId[i] == bank)
- return i;
+ if (_fcBankId[_fcBankIdx[i]] == bank)
+ {
+ int t = _fcBankIdx[i];
+
+ for (j = i; j > 0; j--)
+ _fcBankIdx[j] = _fcBankIdx[j-1];
+ _fcBankIdx[0] = t;
+ return t;
+ }
if (banks_ptr >= banks_alloc)
{
- b = realloc (bankId, (banks_alloc + 4) * sizeof(int));
+ 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;
- bankId = b;
banks_alloc += 4;
}
i = banks_ptr++;
- bankId[i] = bank;
+ _fcBankId[i] = bank;
+ _fcBankIdx[i] = i;
return i;
}
+
+static void
+FcCacheAddBankDir (int bank, const char * dir)
+{
+ int bi = FcCacheBankToIndexMTF (bank);
+
+ if (bi < 0)
+ return;
+
+ bankDirs[bi] = (const char *)FcStrCopy ((FcChar8 *)dir);
+}
+
+const char *
+FcCacheFindBankDir (int bank)
+{
+ int bi = FcCacheBankToIndex (bank);
+ return bankDirs[bi];
+}
+
+/*
+ * This code implements the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest. This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ *
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ */
+
+#ifndef HIGHFIRST
+#define byteReverse(buf, len) /* Nothing */
+#else
+/*
+ * Note: this code is harmless on little-endian machines.
+ */
+void byteReverse(unsigned char *buf, unsigned longs)
+{
+ FcChar32 t;
+ do {
+ t = (FcChar32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
+ ((unsigned) buf[1] << 8 | buf[0]);
+ *(FcChar32 *) buf = t;
+ buf += 4;
+ } while (--longs);
+}
+#endif
+
+/*
+ * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
+ * initialization constants.
+ */
+static void MD5Init(struct MD5Context *ctx)
+{
+ ctx->buf[0] = 0x67452301;
+ ctx->buf[1] = 0xefcdab89;
+ ctx->buf[2] = 0x98badcfe;
+ ctx->buf[3] = 0x10325476;
+
+ ctx->bits[0] = 0;
+ ctx->bits[1] = 0;
+}
+
+/*
+ * Update context to reflect the concatenation of another buffer full
+ * of bytes.
+ */
+static void MD5Update(struct MD5Context *ctx, unsigned char *buf, unsigned len)
+{
+ FcChar32 t;
+
+ /* Update bitcount */
+
+ t = ctx->bits[0];
+ if ((ctx->bits[0] = t + ((FcChar32) len << 3)) < t)
+ ctx->bits[1]++; /* Carry from low to high */
+ ctx->bits[1] += len >> 29;
+
+ t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
+
+ /* Handle any leading odd-sized chunks */
+
+ if (t) {
+ unsigned char *p = (unsigned char *) ctx->in + t;
+
+ t = 64 - t;
+ if (len < t) {
+ memcpy(p, buf, len);
+ return;
+ }
+ memcpy(p, buf, t);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (FcChar32 *) ctx->in);
+ buf += t;
+ len -= t;
+ }
+ /* Process data in 64-byte chunks */
+
+ while (len >= 64) {
+ memcpy(ctx->in, buf, 64);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (FcChar32 *) ctx->in);
+ buf += 64;
+ len -= 64;
+ }
+
+ /* Handle any remaining bytes of data. */
+
+ memcpy(ctx->in, buf, len);
+}
+
+/*
+ * Final wrapup - pad to 64-byte boundary with the bit pattern
+ * 1 0* (64-bit count of bits processed, MSB-first)
+ */
+static void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
+{
+ unsigned count;
+ unsigned char *p;
+
+ /* Compute number of bytes mod 64 */
+ count = (ctx->bits[0] >> 3) & 0x3F;
+
+ /* Set the first char of padding to 0x80. This is safe since there is
+ always at least one byte free */
+ p = ctx->in + count;
+ *p++ = 0x80;
+
+ /* Bytes of padding needed to make 64 bytes */
+ count = 64 - 1 - count;
+
+ /* Pad out to 56 mod 64 */
+ if (count < 8) {
+ /* Two lots of padding: Pad the first block to 64 bytes */
+ memset(p, 0, count);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (FcChar32 *) ctx->in);
+
+ /* Now fill the next block with 56 bytes */
+ memset(ctx->in, 0, 56);
+ } else {
+ /* Pad block to 56 bytes */
+ memset(p, 0, count - 8);
+ }
+ byteReverse(ctx->in, 14);
+
+ /* Append length in bits and transform */
+ ((FcChar32 *) ctx->in)[14] = ctx->bits[0];
+ ((FcChar32 *) ctx->in)[15] = ctx->bits[1];
+
+ MD5Transform(ctx->buf, (FcChar32 *) ctx->in);
+ byteReverse((unsigned char *) ctx->buf, 4);
+ memcpy(digest, ctx->buf, 16);
+ memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */
+}
+
+
+/* The four core functions - F1 is optimized somewhat */
+
+/* #define F1(x, y, z) (x & y | ~x & z) */
+#define F1(x, y, z) (z ^ (x & (y ^ z)))
+#define F2(x, y, z) F1(z, x, y)
+#define F3(x, y, z) (x ^ y ^ z)
+#define F4(x, y, z) (y ^ (x | ~z))
+
+/* This is the central step in the MD5 algorithm. */
+#define MD5STEP(f, w, x, y, z, data, s) \
+ ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
+
+/*
+ * The core of the MD5 algorithm, this alters an existing MD5 hash to
+ * reflect the addition of 16 longwords of new data. MD5Update blocks
+ * the data and converts bytes into longwords for this routine.
+ */
+static void MD5Transform(FcChar32 buf[4], FcChar32 in[16])
+{
+ register FcChar32 a, b, c, d;
+
+ a = buf[0];
+ b = buf[1];
+ c = buf[2];
+ d = buf[3];
+
+ MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+ MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+ MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+ MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+ MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+ MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+ MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+ MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+ MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+ MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+ MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+ MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+ MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+ MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+ MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+ MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+ MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+ MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+ MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+ MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+ MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+ MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+ MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+ MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+ MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+ MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+ MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+ MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+ MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+ MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+ MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+ MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+ MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+ MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+ MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+ MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+ MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+ MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+ MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+ MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+ MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+ MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+ MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+ MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+ MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+ MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+ MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+ MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+ MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+ MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+ MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+ MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+ MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+ MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+ MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+ MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+ MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+ MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+ MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+ MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+ MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+ MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+ MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+ MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+ buf[0] += a;
+ buf[1] += b;
+ buf[2] += c;
+ buf[3] += d;
+}
git.wh0rd.org / fontconfig.git / blobdiff