2 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 1999-2012 Hiroyuki Yamamoto & The Claws Mail Team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "claws-features.h"
31 #include <glib/gi18n.h>
34 # define MAP_FAILED ((char *) -1)
36 # include <sys/mman.h>
38 #include <sys/types.h>
49 #include "prefs_common.h"
51 #ifdef HAVE_FWRITE_UNLOCKED
52 #define SC_FWRITE fwrite_unlocked
54 #define SC_FWRITE fwrite
57 #if G_BYTE_ORDER == G_BIG_ENDIAN
59 ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
60 (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
62 #define MMAP_TO_GUINT32(x) \
64 ((x[2]&0xff) << 8) | \
65 ((x[1]&0xff) << 16) | \
68 #define MMAP_TO_GUINT32_SWAPPED(x) \
70 ((x[1]&0xff) << 8) | \
71 ((x[2]&0xff) << 16) | \
74 static gboolean msgcache_use_mmap_read = TRUE;
77 #define bswap_32(x) (x)
79 #define MMAP_TO_GUINT32(x) \
81 ((x[1]&0xff) << 8) | \
82 ((x[2]&0xff) << 16) | \
85 #define MMAP_TO_GUINT32_SWAPPED(x) \
87 ((x[1]&0xff) << 8) | \
88 ((x[2]&0xff) << 16) | \
91 static gboolean msgcache_use_mmap_read = TRUE;
94 static gboolean swapping = TRUE;
104 GHashTable *msgnum_table;
105 GHashTable *msgid_table;
110 typedef struct _StringConverter StringConverter;
111 struct _StringConverter {
112 gchar *(*convert) (StringConverter *converter, gchar *srcstr);
113 void (*free) (StringConverter *converter);
116 typedef struct _StrdupConverter StrdupConverter;
117 struct _StrdupConverter {
118 StringConverter converter;
121 typedef struct _CharsetConverter CharsetConverter;
122 struct _CharsetConverter {
123 StringConverter converter;
129 MsgCache *msgcache_new(void)
133 cache = g_new0(MsgCache, 1),
134 cache->msgnum_table = g_hash_table_new(g_int_hash, g_int_equal);
135 cache->msgid_table = g_hash_table_new(g_str_hash, g_str_equal);
136 cache->last_access = time(NULL);
141 static gboolean msgcache_msginfo_free_func(gpointer num, gpointer msginfo, gpointer user_data)
143 procmsg_msginfo_free((MsgInfo *)msginfo);
147 void msgcache_destroy(MsgCache *cache)
149 cm_return_if_fail(cache != NULL);
151 g_hash_table_foreach_remove(cache->msgnum_table, msgcache_msginfo_free_func, NULL);
152 g_hash_table_destroy(cache->msgid_table);
153 g_hash_table_destroy(cache->msgnum_table);
157 void msgcache_add_msg(MsgCache *cache, MsgInfo *msginfo)
161 cm_return_if_fail(cache != NULL);
162 cm_return_if_fail(msginfo != NULL);
164 newmsginfo = procmsg_msginfo_new_ref(msginfo);
165 g_hash_table_insert(cache->msgnum_table, &newmsginfo->msgnum, newmsginfo);
166 if(newmsginfo->msgid != NULL)
167 g_hash_table_insert(cache->msgid_table, newmsginfo->msgid, newmsginfo);
168 cache->memusage += procmsg_msginfo_memusage(msginfo);
169 cache->last_access = time(NULL);
171 msginfo->folder->cache_dirty = TRUE;
173 debug_print("Cache size: %d messages, %u bytes\n", g_hash_table_size(cache->msgnum_table), cache->memusage);
176 void msgcache_remove_msg(MsgCache *cache, guint msgnum)
180 cm_return_if_fail(cache != NULL);
182 msginfo = (MsgInfo *) g_hash_table_lookup(cache->msgnum_table, &msgnum);
186 cache->memusage -= procmsg_msginfo_memusage(msginfo);
188 g_hash_table_remove(cache->msgid_table, msginfo->msgid);
189 g_hash_table_remove(cache->msgnum_table, &msginfo->msgnum);
190 procmsg_msginfo_free(msginfo);
191 cache->last_access = time(NULL);
193 msginfo->folder->cache_dirty = TRUE;
195 debug_print("Cache size: %d messages, %u bytes\n", g_hash_table_size(cache->msgnum_table), cache->memusage);
198 void msgcache_update_msg(MsgCache *cache, MsgInfo *msginfo)
200 MsgInfo *oldmsginfo, *newmsginfo;
202 cm_return_if_fail(cache != NULL);
203 cm_return_if_fail(msginfo != NULL);
205 oldmsginfo = g_hash_table_lookup(cache->msgnum_table, &msginfo->msgnum);
206 if(oldmsginfo && oldmsginfo->msgid)
207 g_hash_table_remove(cache->msgid_table, oldmsginfo->msgid);
209 g_hash_table_remove(cache->msgnum_table, &oldmsginfo->msgnum);
210 cache->memusage -= procmsg_msginfo_memusage(oldmsginfo);
211 procmsg_msginfo_free(oldmsginfo);
214 newmsginfo = procmsg_msginfo_new_ref(msginfo);
215 g_hash_table_insert(cache->msgnum_table, &newmsginfo->msgnum, newmsginfo);
216 if(newmsginfo->msgid)
217 g_hash_table_insert(cache->msgid_table, newmsginfo->msgid, newmsginfo);
218 cache->memusage += procmsg_msginfo_memusage(newmsginfo);
219 cache->last_access = time(NULL);
221 debug_print("Cache size: %d messages, %u bytes\n", g_hash_table_size(cache->msgnum_table), cache->memusage);
223 msginfo->folder->cache_dirty = TRUE;
228 MsgInfo *msgcache_get_msg(MsgCache *cache, guint num)
232 cm_return_val_if_fail(cache != NULL, NULL);
234 msginfo = g_hash_table_lookup(cache->msgnum_table, &num);
237 cache->last_access = time(NULL);
239 return procmsg_msginfo_new_ref(msginfo);
242 MsgInfo *msgcache_get_msg_by_id(MsgCache *cache, const gchar *msgid)
246 cm_return_val_if_fail(cache != NULL, NULL);
247 cm_return_val_if_fail(msgid != NULL, NULL);
249 msginfo = g_hash_table_lookup(cache->msgid_table, msgid);
252 cache->last_access = time(NULL);
254 return procmsg_msginfo_new_ref(msginfo);
257 static void msgcache_get_msg_list_func(gpointer key, gpointer value, gpointer user_data)
259 MsgInfoList **listptr = user_data;
260 MsgInfo *msginfo = value;
262 *listptr = g_slist_prepend(*listptr, procmsg_msginfo_new_ref(msginfo));
265 MsgInfoList *msgcache_get_msg_list(MsgCache *cache)
267 MsgInfoList *msg_list = NULL;
269 cm_return_val_if_fail(cache != NULL, NULL);
271 g_hash_table_foreach((GHashTable *)cache->msgnum_table, msgcache_get_msg_list_func, (gpointer)&msg_list);
272 cache->last_access = time(NULL);
274 msg_list = g_slist_reverse(msg_list);
279 time_t msgcache_get_last_access_time(MsgCache *cache)
281 cm_return_val_if_fail(cache != NULL, 0);
283 return cache->last_access;
286 gint msgcache_get_memory_usage(MsgCache *cache)
288 cm_return_val_if_fail(cache != NULL, 0);
290 return cache->memusage;
294 * Cache saving functions
297 #define READ_CACHE_DATA(data, fp, total_len) \
299 if ((tmp_len = msgcache_read_cache_data_str(fp, &data, conv)) < 0) { \
300 procmsg_msginfo_free(msginfo); \
304 total_len += tmp_len; \
307 #define READ_CACHE_DATA_INT(n, fp) \
312 if ((ni = fread(&idata, sizeof(idata), 1, fp)) != 1) { \
313 g_warning("read_int: Cache data corrupted, read %zd of %zd at " \
314 "offset %ld\n", ni, sizeof(idata), ftell(fp)); \
315 procmsg_msginfo_free(msginfo); \
319 n = swapping ? bswap_32(idata) : (idata);\
322 #define GET_CACHE_DATA_INT(n) \
325 g_print("error at rem_len:%d\n", rem_len); \
329 n = (swapping ? (MMAP_TO_GUINT32_SWAPPED(walk_data)):(MMAP_TO_GUINT32(walk_data))); \
330 walk_data += 4; rem_len -= 4; \
333 #define GET_CACHE_DATA(data, total_len) \
335 GET_CACHE_DATA_INT(tmp_len); \
336 if (rem_len < tmp_len) { \
337 g_print("error at rem_len:%d (tmp_len %d)\n", rem_len, tmp_len); \
341 if ((tmp_len = msgcache_get_cache_data_str(walk_data, &data, tmp_len, conv)) < 0) { \
342 g_print("error at rem_len:%d\n", rem_len);\
343 procmsg_msginfo_free(msginfo); \
347 total_len += tmp_len; \
348 walk_data += tmp_len; rem_len -= tmp_len; \
352 #define WRITE_CACHE_DATA_INT(n, fp) \
356 idata = (guint32)bswap_32(n); \
357 if (SC_FWRITE(&idata, sizeof(idata), 1, fp) != 1) \
362 #define PUT_CACHE_DATA_INT(n) \
364 walk_data[0]=(((guint32)n)&0x000000ff); \
365 walk_data[1]=(((guint32)n)&0x0000ff00)>>8; \
366 walk_data[2]=(((guint32)n)&0x00ff0000)>>16; \
367 walk_data[3]=(((guint32)n)&0xff000000)>>24; \
372 #define WRITE_CACHE_DATA(data, fp) \
378 len = strlen(data); \
379 WRITE_CACHE_DATA_INT(len, fp); \
380 if (w_err == 0 && len > 0) { \
381 if (SC_FWRITE(data, 1, len, fp) != len) \
387 #define PUT_CACHE_DATA(data) \
393 len = strlen(data); \
394 PUT_CACHE_DATA_INT(len); \
396 memcpy(walk_data, data, len); \
402 static FILE *msgcache_open_data_file(const gchar *file, guint version,
404 gchar *buf, size_t buf_size)
409 cm_return_val_if_fail(file != NULL, NULL);
411 if (mode == DATA_WRITE) {
412 int w_err = 0, wrote = 0;
413 if ((fp = g_fopen(file, "wb")) == NULL) {
414 FILE_OP_ERROR(file, "fopen");
417 if (change_file_mode_rw(fp, file) < 0)
418 FILE_OP_ERROR(file, "chmod");
420 WRITE_CACHE_DATA_INT(version, fp);
422 g_warning("failed to write int\n");
430 if ((fp = g_fopen(file, "rb")) == NULL)
431 debug_print("Mark/Cache file '%s' not found\n", file);
433 if (buf && buf_size > 0)
434 setvbuf(fp, buf, _IOFBF, buf_size);
435 if (fread(&data_ver, sizeof(data_ver), 1, fp) != 1 ||
436 version != bswap_32(data_ver)) {
437 g_message("%s: Mark/Cache version is different (%u != %u).\n",
438 file, bswap_32(data_ver), version);
442 data_ver = bswap_32(data_ver);
445 if (mode == DATA_READ)
449 /* reopen with append mode */
451 if ((fp = g_fopen(file, "ab")) == NULL)
452 FILE_OP_ERROR(file, "fopen");
454 /* open with overwrite mode if mark file doesn't exist or
455 version is different */
456 fp = msgcache_open_data_file(file, version, DATA_WRITE, buf,
463 static gint msgcache_read_cache_data_str(FILE *fp, gchar **str,
464 StringConverter *conv)
466 gchar *tmpstr = NULL;
472 if ((ni = fread(&len, sizeof(len), 1, fp) != 1) ||
474 g_warning("read_data_str: Cache data (len) corrupted, read %zd "
475 "of %zd bytes at offset %ld\n", ni, sizeof(len),
480 if ((ni = fread(&len, sizeof(len), 1, fp) != 1) ||
481 bswap_32(len) > G_MAXINT) {
482 g_warning("read_data_str: Cache data (len) corrupted, read %zd "
483 "of %zd bytes at offset %ld\n", ni, sizeof(len),
493 tmpstr = g_try_malloc(len + 1);
499 if ((ni = fread(tmpstr, 1, len, fp)) != len) {
500 g_warning("read_data_str: Cache data corrupted, read %zd of %u "
501 "bytes at offset %ld\n",
509 *str = conv->convert(conv, tmpstr);
517 static gint msgcache_get_cache_data_str(gchar *src, gchar **str, gint len,
518 StringConverter *conv)
520 gchar *tmpstr = NULL;
527 if(len > 2*1024*1024) {
528 g_warning("read_data_str: refusing to allocate %d bytes.\n", len);
532 tmpstr = g_try_malloc(len + 1);
538 memcpy(tmpstr, src, len);
542 *str = conv->convert(conv, tmpstr);
550 static gchar *strconv_charset_convert(StringConverter *conv, gchar *srcstr)
552 CharsetConverter *charsetconv = (CharsetConverter *) conv;
554 return conv_codeset_strdup(srcstr, charsetconv->srccharset, charsetconv->dstcharset);
557 static void strconv_charset_free(StringConverter *conv)
559 CharsetConverter *charsetconv = (CharsetConverter *) conv;
561 g_free(charsetconv->srccharset);
562 g_free(charsetconv->dstcharset);
565 MsgCache *msgcache_read_cache(FolderItem *item, const gchar *cache_file)
570 MsgTmpFlags tmp_flags = 0;
571 gchar file_buf[BUFFSIZE];
574 gboolean error = FALSE;
575 StringConverter *conv = NULL;
576 gchar *srccharset = NULL;
577 const gchar *dstcharset = NULL;
580 gint tmp_len = 0, map_len = -1;
581 char *cache_data = NULL;
584 cm_return_val_if_fail(cache_file != NULL, NULL);
585 cm_return_val_if_fail(item != NULL, NULL);
589 /* In case we can't open the mark file with MARK_VERSION, check if we can open it with the
590 * swapped MARK_VERSION. As msgcache_open_data_file swaps it too, if this succeeds,
591 * it means it's the old version (not little-endian) on a big-endian machine. The code has
592 * no effect on x86 as their file doesn't change. */
594 if ((fp = msgcache_open_data_file
595 (cache_file, CACHE_VERSION, DATA_READ, file_buf, sizeof(file_buf))) == NULL) {
596 if ((fp = msgcache_open_data_file
597 (cache_file, bswap_32(CACHE_VERSION), DATA_READ, file_buf, sizeof(file_buf))) == NULL)
603 debug_print("\tReading %sswapped message cache from %s...\n", swapping?"":"un", cache_file);
605 if (folder_has_parent_of_type(item, F_QUEUE)) {
606 tmp_flags |= MSG_QUEUED;
607 } else if (folder_has_parent_of_type(item, F_DRAFT)) {
608 tmp_flags |= MSG_DRAFT;
611 if (msgcache_read_cache_data_str(fp, &srccharset, NULL) < 0) {
615 dstcharset = CS_UTF_8;
616 if (srccharset == NULL || dstcharset == NULL) {
618 } else if (strcmp(srccharset, dstcharset) == 0) {
619 debug_print("using Noop Converter\n");
623 CharsetConverter *charsetconv;
625 debug_print("using CharsetConverter\n");
627 charsetconv = g_new0(CharsetConverter, 1);
628 charsetconv->converter.convert = strconv_charset_convert;
629 charsetconv->converter.free = strconv_charset_free;
630 charsetconv->srccharset = g_strdup(srccharset);
631 charsetconv->dstcharset = g_strdup(dstcharset);
633 conv = (StringConverter *) charsetconv;
637 cache = msgcache_new();
639 if (msgcache_use_mmap_read == TRUE) {
640 if (fstat(fileno(fp), &st) >= 0)
641 map_len = st.st_size;
647 HANDLE hFile, hMapping;
648 hFile = (HANDLE) _get_osfhandle (fileno(fp));
649 if (hFile == (HANDLE) -1)
651 hMapping = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, NULL);
654 cache_data = (unsigned char *)MapViewOfFile(hMapping, FILE_MAP_COPY, 0, 0, 0);
655 CloseHandle (hMapping);
659 cache_data = mmap(NULL, map_len, PROT_READ, MAP_PRIVATE, fileno(fp), 0);
665 if (cache_data != NULL && cache_data != MAP_FAILED) {
666 int rem_len = map_len-ftell(fp);
667 char *walk_data = cache_data+ftell(fp);
670 GET_CACHE_DATA_INT(num);
672 msginfo = procmsg_msginfo_new();
673 msginfo->msgnum = num;
674 memusage += sizeof(MsgInfo);
676 GET_CACHE_DATA_INT(msginfo->size);
677 GET_CACHE_DATA_INT(msginfo->mtime);
678 GET_CACHE_DATA_INT(msginfo->date_t);
679 GET_CACHE_DATA_INT(msginfo->flags.tmp_flags);
681 GET_CACHE_DATA(msginfo->fromname, memusage);
683 GET_CACHE_DATA(msginfo->date, memusage);
684 GET_CACHE_DATA(msginfo->from, memusage);
685 GET_CACHE_DATA(msginfo->to, memusage);
686 GET_CACHE_DATA(msginfo->cc, memusage);
687 GET_CACHE_DATA(msginfo->newsgroups, memusage);
688 GET_CACHE_DATA(msginfo->subject, memusage);
689 GET_CACHE_DATA(msginfo->msgid, memusage);
690 GET_CACHE_DATA(msginfo->inreplyto, memusage);
691 GET_CACHE_DATA(msginfo->xref, memusage);
693 GET_CACHE_DATA_INT(msginfo->planned_download);
694 GET_CACHE_DATA_INT(msginfo->total_size);
695 GET_CACHE_DATA_INT(refnum);
697 for (; refnum != 0; refnum--) {
700 GET_CACHE_DATA(ref, memusage);
703 msginfo->references =
704 g_slist_prepend(msginfo->references, ref);
706 if (msginfo->references)
707 msginfo->references =
708 g_slist_reverse(msginfo->references);
710 msginfo->folder = item;
711 msginfo->flags.tmp_flags |= tmp_flags;
713 g_hash_table_insert(cache->msgnum_table, &msginfo->msgnum, msginfo);
715 g_hash_table_insert(cache->msgid_table, msginfo->msgid, msginfo);
719 UnmapViewOfFile((void*) cache_data);
721 munmap(cache_data, map_len);
724 while (fread(&num, sizeof(num), 1, fp) == 1) {
728 msginfo = procmsg_msginfo_new();
729 msginfo->msgnum = num;
730 memusage += sizeof(MsgInfo);
732 READ_CACHE_DATA_INT(msginfo->size, fp);
733 READ_CACHE_DATA_INT(msginfo->mtime, fp);
734 READ_CACHE_DATA_INT(msginfo->date_t, fp);
735 READ_CACHE_DATA_INT(msginfo->flags.tmp_flags, fp);
737 READ_CACHE_DATA(msginfo->fromname, fp, memusage);
739 READ_CACHE_DATA(msginfo->date, fp, memusage);
740 READ_CACHE_DATA(msginfo->from, fp, memusage);
741 READ_CACHE_DATA(msginfo->to, fp, memusage);
742 READ_CACHE_DATA(msginfo->cc, fp, memusage);
743 READ_CACHE_DATA(msginfo->newsgroups, fp, memusage);
744 READ_CACHE_DATA(msginfo->subject, fp, memusage);
745 READ_CACHE_DATA(msginfo->msgid, fp, memusage);
746 READ_CACHE_DATA(msginfo->inreplyto, fp, memusage);
747 READ_CACHE_DATA(msginfo->xref, fp, memusage);
749 READ_CACHE_DATA_INT(msginfo->planned_download, fp);
750 READ_CACHE_DATA_INT(msginfo->total_size, fp);
751 READ_CACHE_DATA_INT(refnum, fp);
753 for (; refnum != 0; refnum--) {
756 READ_CACHE_DATA(ref, fp, memusage);
759 msginfo->references =
760 g_slist_prepend(msginfo->references, ref);
762 if (msginfo->references)
763 msginfo->references =
764 g_slist_reverse(msginfo->references);
766 msginfo->folder = item;
767 msginfo->flags.tmp_flags |= tmp_flags;
769 g_hash_table_insert(cache->msgnum_table, &msginfo->msgnum, msginfo);
771 g_hash_table_insert(cache->msgid_table, msginfo->msgid, msginfo);
778 if (conv->free != NULL)
784 msgcache_destroy(cache);
788 cache->last_access = time(NULL);
789 cache->memusage = memusage;
791 debug_print("done. (%d items read)\n", g_hash_table_size(cache->msgnum_table));
792 debug_print("Cache size: %d messages, %u bytes\n", g_hash_table_size(cache->msgnum_table), cache->memusage);
797 void msgcache_read_mark(MsgCache *cache, const gchar *mark_file)
801 MsgPermFlags perm_flags;
804 char *cache_data = NULL;
810 /* In case we can't open the mark file with MARK_VERSION, check if we can open it with the
811 * swapped MARK_VERSION. As msgcache_open_data_file swaps it too, if this succeeds,
812 * it means it's the old version (not little-endian) on a big-endian machine. The code has
813 * no effect on x86 as their file doesn't change. */
815 if ((fp = msgcache_open_data_file(mark_file, MARK_VERSION, DATA_READ, NULL, 0)) == NULL) {
816 /* see if it isn't swapped ? */
817 if ((fp = msgcache_open_data_file(mark_file, bswap_32(MARK_VERSION), DATA_READ, NULL, 0)) == NULL)
820 swapping = FALSE; /* yay */
822 debug_print("reading %sswapped mark file.\n", swapping?"":"un");
824 if (msgcache_use_mmap_read) {
825 if (fstat(fileno(fp), &st) >= 0)
826 map_len = st.st_size;
832 HANDLE hFile, hMapping;
833 hFile = (HANDLE) _get_osfhandle (fileno(fp));
834 if (hFile == (HANDLE) -1)
836 hMapping = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, NULL);
839 cache_data = (unsigned char *)MapViewOfFile(hMapping, FILE_MAP_COPY, 0, 0, 0);
840 CloseHandle (hMapping);
844 cache_data = mmap(NULL, map_len, PROT_READ, MAP_PRIVATE, fileno(fp), 0);
850 if (cache_data != NULL && cache_data != MAP_FAILED) {
851 int rem_len = map_len-ftell(fp);
852 char *walk_data = cache_data+ftell(fp);
855 GET_CACHE_DATA_INT(num);
856 GET_CACHE_DATA_INT(perm_flags);
857 msginfo = g_hash_table_lookup(cache->msgnum_table, &num);
859 msginfo->flags.perm_flags = perm_flags;
863 UnmapViewOfFile((void*) cache_data);
865 munmap(cache_data, map_len);
868 while (fread(&num, sizeof(num), 1, fp) == 1) {
871 if (fread(&perm_flags, sizeof(perm_flags), 1, fp) != 1) break;
873 perm_flags = bswap_32(perm_flags);
874 msginfo = g_hash_table_lookup(cache->msgnum_table, &num);
876 msginfo->flags.perm_flags = perm_flags;
883 debug_print("error reading cache mark from %s\n", mark_file);
887 void msgcache_read_tags(MsgCache *cache, const gchar *tags_file)
893 char *cache_data = NULL;
895 gboolean error = FALSE;
899 /* In case we can't open the mark file with MARK_VERSION, check if we can open it with the
900 * swapped MARK_VERSION. As msgcache_open_data_file swaps it too, if this succeeds,
901 * it means it's the old version (not little-endian) on a big-endian machine. The code has
902 * no effect on x86 as their file doesn't change. */
904 if ((fp = msgcache_open_data_file(tags_file, TAGS_VERSION, DATA_READ, NULL, 0)) == NULL) {
905 /* see if it isn't swapped ? */
906 if ((fp = msgcache_open_data_file(tags_file, bswap_32(TAGS_VERSION), DATA_READ, NULL, 0)) == NULL)
909 swapping = FALSE; /* yay */
911 debug_print("reading %sswapped tags file.\n", swapping?"":"un");
913 if (msgcache_use_mmap_read) {
914 if (fstat(fileno(fp), &st) >= 0)
915 map_len = st.st_size;
921 HANDLE hFile, hMapping;
922 hFile = (HANDLE) _get_osfhandle (fileno(fp));
923 if (hFile == (HANDLE) -1)
925 hMapping = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, NULL);
928 cache_data = (unsigned char *)MapViewOfFile(hMapping, FILE_MAP_COPY, 0, 0, 0);
929 CloseHandle (hMapping);
933 cache_data = mmap(NULL, map_len, PROT_READ, MAP_PRIVATE, fileno(fp), 0);
939 if (cache_data != NULL && cache_data != MAP_FAILED) {
940 int rem_len = map_len-ftell(fp);
941 char *walk_data = cache_data+ftell(fp);
945 GET_CACHE_DATA_INT(num);
946 msginfo = g_hash_table_lookup(cache->msgnum_table, &num);
948 g_slist_free(msginfo->tags);
949 msginfo->tags = NULL;
951 GET_CACHE_DATA_INT(id);
953 msginfo->tags = g_slist_prepend(
955 GINT_TO_POINTER(id));
958 msginfo->tags = g_slist_reverse(msginfo->tags);
962 UnmapViewOfFile((void*) cache_data);
964 munmap(cache_data, map_len);
967 while (fread(&num, sizeof(num), 1, fp) == 1) {
971 msginfo = g_hash_table_lookup(cache->msgnum_table, &num);
973 g_slist_free(msginfo->tags);
974 msginfo->tags = NULL;
976 if (fread(&id, sizeof(id), 1, fp) != 1)
981 msginfo->tags = g_slist_prepend(
983 GINT_TO_POINTER(id));
986 msginfo->tags = g_slist_reverse(msginfo->tags);
993 debug_print("error reading cache tags from %s\n", tags_file);
997 static int msgcache_write_cache(MsgInfo *msginfo, FILE *fp)
999 MsgTmpFlags flags = msginfo->flags.tmp_flags & MSG_CACHED_FLAG_MASK;
1001 int w_err = 0, wrote = 0;
1003 WRITE_CACHE_DATA_INT(msginfo->msgnum, fp);
1004 WRITE_CACHE_DATA_INT(msginfo->size, fp);
1005 WRITE_CACHE_DATA_INT(msginfo->mtime, fp);
1006 WRITE_CACHE_DATA_INT(msginfo->date_t, fp);
1007 WRITE_CACHE_DATA_INT(flags, fp);
1009 WRITE_CACHE_DATA(msginfo->fromname, fp);
1011 WRITE_CACHE_DATA(msginfo->date, fp);
1012 WRITE_CACHE_DATA(msginfo->from, fp);
1013 WRITE_CACHE_DATA(msginfo->to, fp);
1014 WRITE_CACHE_DATA(msginfo->cc, fp);
1015 WRITE_CACHE_DATA(msginfo->newsgroups, fp);
1016 WRITE_CACHE_DATA(msginfo->subject, fp);
1017 WRITE_CACHE_DATA(msginfo->msgid, fp);
1018 WRITE_CACHE_DATA(msginfo->inreplyto, fp);
1019 WRITE_CACHE_DATA(msginfo->xref, fp);
1020 WRITE_CACHE_DATA_INT(msginfo->planned_download, fp);
1021 WRITE_CACHE_DATA_INT(msginfo->total_size, fp);
1023 WRITE_CACHE_DATA_INT(g_slist_length(msginfo->references), fp);
1025 for (cur = msginfo->references; cur != NULL; cur = cur->next) {
1026 WRITE_CACHE_DATA((gchar *)cur->data, fp);
1028 return w_err ? -1 : wrote;
1031 static int msgcache_write_flags(MsgInfo *msginfo, FILE *fp)
1033 MsgPermFlags flags = msginfo->flags.perm_flags;
1034 int w_err = 0, wrote = 0;
1035 WRITE_CACHE_DATA_INT(msginfo->msgnum, fp);
1036 WRITE_CACHE_DATA_INT(flags, fp);
1037 return w_err ? -1 : wrote;
1040 static int msgcache_write_tags(MsgInfo *msginfo, FILE *fp)
1042 GSList *cur = msginfo->tags;
1043 int w_err = 0, wrote = 0;
1045 WRITE_CACHE_DATA_INT(msginfo->msgnum, fp);
1046 for (; cur; cur = cur->next) {
1047 gint id = GPOINTER_TO_INT(cur->data);
1048 if (tags_get_tag(id) != NULL) {
1049 WRITE_CACHE_DATA_INT(id, fp);
1052 WRITE_CACHE_DATA_INT(-1, fp);
1054 return w_err ? -1 : wrote;
1068 static void msgcache_write_func(gpointer key, gpointer value, gpointer user_data)
1071 struct write_fps *write_fps;
1074 msginfo = (MsgInfo *)value;
1075 write_fps = user_data;
1077 if (write_fps->cache_fp) {
1078 tmp = msgcache_write_cache(msginfo, write_fps->cache_fp);
1080 write_fps->error = 1;
1082 write_fps->cache_size += tmp;
1084 if (write_fps->mark_fp) {
1085 tmp= msgcache_write_flags(msginfo, write_fps->mark_fp);
1087 write_fps->error = 1;
1089 write_fps->mark_size += tmp;
1091 if (write_fps->tags_fp) {
1092 tmp = msgcache_write_tags(msginfo, write_fps->tags_fp);
1094 write_fps->error = 1;
1096 write_fps->tags_size += tmp;
1100 gint msgcache_write(const gchar *cache_file, const gchar *mark_file, const gchar *tags_file, MsgCache *cache)
1102 struct write_fps write_fps;
1103 gchar *new_cache, *new_mark, *new_tags;
1104 int w_err = 0, wrote = 0;
1107 cm_return_val_if_fail(cache != NULL, -1);
1109 new_cache = g_strconcat(cache_file, ".new", NULL);
1110 new_mark = g_strconcat(mark_file, ".new", NULL);
1111 new_tags = g_strconcat(tags_file, ".new", NULL);
1113 write_fps.error = 0;
1114 write_fps.cache_size = 0;
1115 write_fps.mark_size = 0;
1116 write_fps.tags_size = 0;
1118 /* open files and write headers */
1121 write_fps.cache_fp = msgcache_open_data_file(new_cache, CACHE_VERSION,
1122 DATA_WRITE, NULL, 0);
1123 if (write_fps.cache_fp == NULL) {
1129 WRITE_CACHE_DATA(CS_UTF_8, write_fps.cache_fp);
1131 write_fps.cache_fp = NULL;
1135 g_warning("failed to write charset\n");
1136 fclose(write_fps.cache_fp);
1137 claws_unlink(new_cache);
1145 write_fps.mark_fp = msgcache_open_data_file(new_mark, MARK_VERSION,
1146 DATA_WRITE, NULL, 0);
1147 if (write_fps.mark_fp == NULL) {
1148 fclose(write_fps.cache_fp);
1149 claws_unlink(new_cache);
1156 write_fps.mark_fp = NULL;
1160 write_fps.tags_fp = msgcache_open_data_file(new_tags, TAGS_VERSION,
1161 DATA_WRITE, NULL, 0);
1162 if (write_fps.tags_fp == NULL) {
1163 fclose(write_fps.cache_fp);
1164 fclose(write_fps.mark_fp);
1165 claws_unlink(new_cache);
1166 claws_unlink(new_mark);
1173 write_fps.tags_fp = NULL;
1176 debug_print("\tWriting message cache to %s and %s...\n", new_cache, new_mark);
1178 if (write_fps.cache_fp && change_file_mode_rw(write_fps.cache_fp, new_cache) < 0)
1179 FILE_OP_ERROR(new_cache, "chmod");
1181 /* headers written, note file size */
1182 if (write_fps.cache_fp)
1183 write_fps.cache_size = ftell(write_fps.cache_fp);
1184 if (write_fps.mark_fp)
1185 write_fps.mark_size = ftell(write_fps.mark_fp);
1186 if (write_fps.tags_fp)
1187 write_fps.tags_size = ftell(write_fps.tags_fp);
1189 #ifdef HAVE_FWRITE_UNLOCKED
1190 /* lock files for write once (instead of once per fwrite) */
1191 if (write_fps.cache_fp)
1192 flockfile(write_fps.cache_fp);
1193 if (write_fps.mark_fp)
1194 flockfile(write_fps.mark_fp);
1195 if (write_fps.tags_fp)
1196 flockfile(write_fps.tags_fp);
1198 /* write data to the files */
1199 g_hash_table_foreach(cache->msgnum_table, msgcache_write_func, (gpointer)&write_fps);
1200 #ifdef HAVE_FWRITE_UNLOCKED
1202 if (write_fps.cache_fp)
1203 funlockfile(write_fps.cache_fp);
1204 if (write_fps.mark_fp)
1205 funlockfile(write_fps.mark_fp);
1206 if (write_fps.tags_fp)
1207 funlockfile(write_fps.tags_fp);
1210 if (write_fps.cache_fp)
1211 write_fps.error |= (fflush(write_fps.cache_fp) != 0);
1212 if (write_fps.mark_fp)
1213 write_fps.error |= (fflush(write_fps.mark_fp) != 0);
1214 if (write_fps.tags_fp)
1215 write_fps.error |= (fflush(write_fps.tags_fp) != 0);
1217 /* sync to filesystem */
1218 if (prefs_common.flush_metadata && write_fps.cache_fp)
1219 write_fps.error |= (fsync(fileno(write_fps.cache_fp)) != 0);
1220 if (prefs_common.flush_metadata && write_fps.mark_fp)
1221 write_fps.error |= (fsync(fileno(write_fps.mark_fp)) != 0);
1222 if (prefs_common.flush_metadata && write_fps.tags_fp)
1223 write_fps.error |= (fsync(fileno(write_fps.tags_fp)) != 0);
1226 if (write_fps.cache_fp)
1227 write_fps.error |= (fclose(write_fps.cache_fp) != 0);
1228 if (write_fps.mark_fp)
1229 write_fps.error |= (fclose(write_fps.mark_fp) != 0);
1230 if (write_fps.tags_fp)
1231 write_fps.error |= (fclose(write_fps.tags_fp) != 0);
1234 if (write_fps.error != 0) {
1235 /* in case of error, forget all */
1236 claws_unlink(new_cache);
1237 claws_unlink(new_mark);
1238 claws_unlink(new_tags);
1246 move_file(new_cache, cache_file, TRUE);
1248 move_file(new_mark, mark_file, TRUE);
1250 move_file(new_tags, tags_file, TRUE);
1251 cache->last_access = time(NULL);
1257 debug_print("done.\n");