This commit was manufactured by cvs2svn to create tag 'BALSA_2_2_4'.BALSA_2_2_4

svn path=/tags/BALSA_2_2_4/; revision=23688

1 files changed, 0 insertions, 334 deletions

diff --git a/camel/camel-uid-cache.c b/camel/camel-uid-cache.c
deleted file mode 100644
index 2a2a52daeb..0000000000
--- a/camel/camel-uid-cache.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/* camel-uid-cache.c: UID caching code. */
-
-/* 
- * Authors:
- *  Dan Winship <danw@ximian.com>
- *
- * Copyright 2000 Ximian, Inc. (www.ximian.com)
- *
- * This program is free software; you can redistribute it and/or 
- * modify it under the terms of version 2 of the GNU General Public 
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <errno.h>
-#include <fcntl.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include "camel-uid-cache.h"
-#include "camel-file-utils.h"
-
-struct _uid_state {
-	int level;
-	gboolean save;
-};
-
-
-/**
- * camel_uid_cache_new:
- * @filename: path to load the cache from
- *
- * Creates a new UID cache, initialized from @filename. If @filename
- * doesn't already exist, the UID cache will be empty. Otherwise, if
- * it does exist but can't be read, the function will return %NULL.
- *
- * Return value: a new UID cache, or %NULL
- **/
-CamelUIDCache *
-camel_uid_cache_new (const char *filename)
-{
-	CamelUIDCache *cache;
-	struct stat st;
-	char *dirname, *buf, **uids;
-	int fd, i;
-	
-	dirname = g_path_get_dirname (filename);
-	if (camel_mkdir (dirname, 0777) == -1) {
-		g_free (dirname);
-		return NULL;
-	}
-	
-	g_free (dirname);
-	
-	if ((fd = open (filename, O_RDONLY | O_CREAT, 0666)) == -1)
-		return NULL;
-	
-	if (fstat (fd, &st) == -1) {
-		close (fd);
-		return NULL;
-	}
-	
-	buf = g_malloc (st.st_size + 1);
-	
-	if (st.st_size > 0 && camel_read (fd, buf, st.st_size) == -1) {
-		close (fd);
-		g_free (buf);
-		return NULL;
-	}
-	
-	buf[st.st_size] = '\0';
-	
-	close (fd);
-	
-	cache = g_new (CamelUIDCache, 1);
-	cache->uids = g_hash_table_new (g_str_hash, g_str_equal);
-	cache->filename = g_strdup (filename);
-	cache->level = 1;
-	cache->expired = 0;
-	cache->size = 0;
-	cache->fd = -1;
-	
-	uids = g_strsplit (buf, "\n", 0);
-	g_free (buf);
-	for (i = 0; uids[i]; i++) {
-		struct _uid_state *state;
-		
-		state = g_new (struct _uid_state, 1);
-		state->level = cache->level;
-		state->save = TRUE;
-		
-		g_hash_table_insert (cache->uids, uids[i], state);
-	}
-	
-	g_free (uids);
-	
-	return cache;
-}
-
-
-static void
-maybe_write_uid (gpointer key, gpointer value, gpointer data)
-{
-	CamelUIDCache *cache = data;
-	struct _uid_state *state = value;
-	
-	if (cache->fd == -1)
-		return;
-	
-	if (state && state->level == cache->level && state->save) {
-		if (camel_write (cache->fd, key, strlen (key)) == -1 || 
-		    camel_write (cache->fd, "\n", 1) == -1) {
-			cache->fd = -1;
-		} else {
-			cache->size += strlen (key) + 1;
-		}
-	} else {
-		/* keep track of how much space the expired uids would
-		 * have taken up in the cache */
-		cache->expired += strlen (key) + 1;
-	}
-}
-
-
-/**
- * camel_uid_cache_save:
- * @cache: a CamelUIDCache
- *
- * Attempts to save @cache back to disk.
- *
- * Return value: success or failure
- **/
-gboolean
-camel_uid_cache_save (CamelUIDCache *cache)
-{
-	char *filename;
-	int errnosav;
-	int fd;
-	
-	filename = g_strdup_printf ("%s~", cache->filename);
-	if ((fd = open (filename, O_WRONLY | O_CREAT | O_EXCL, 0666)) == -1) {
-		g_free (filename);
-		return FALSE;
-	}
-	
-	cache->fd = fd;
-	cache->size = 0;
-	cache->expired = 0;
-	g_hash_table_foreach (cache->uids, maybe_write_uid, cache);
-	
-	if (cache->fd == -1)
-		goto exception;
-	
-	if (fsync (fd) == -1)
-		goto exception;
-	
-	close (fd);
-	fd = -1;
-	
-	if (rename (filename, cache->filename) == -1)
-		goto exception;
-	
-	g_free (filename);
-	
-	return TRUE;
-	
- exception:
-	
-	errnosav = errno;
-	
-#ifdef ENABLE_SPASMOLYTIC
-	if (fd != -1) {
-		/**
-		 * If our new cache size is larger than the old cache,
-		 * even if we haven't finished writing it out
-		 * successfully, we should still attempt to replace
-		 * the old cache with the new cache because it will at
-		 * least avoid re-downloading a few extra messages
-		 * than if we just kept the old cache.
-		 *
-		 * Similarly, even if the new cache size is smaller
-		 * than the old cache size, but we've expired enough
-		 * uids to make up for the difference in size (or
-		 * more), then we should replace the old cache with
-		 * the new cache as well.
-		 **/
-		
-		if (stat (cache->filename, &st) == 0 &&
-		    (cache->size > st.st_size || cache->size + cache->expired > st.st_size)) {
-			if (ftruncate (fd, (off_t) cache->size) != -1) {
-				cache->size = 0;
-				cache->expired = 0;
-				goto overwrite;
-			}
-		}
-		
-		close (fd);
-	}
-#endif
-	
-	unlink (filename);
-	g_free (filename);
-	
-	errno = errnosav;
-	
-	return FALSE;
-}
-
-
-static void
-free_uid (gpointer key, gpointer value, gpointer data)
-{
-	g_free (key);
-	g_free (value);
-}
-
-
-/**
- * camel_uid_cache_destroy:
- * @cache: a CamelUIDCache
- *
- * Destroys @cache and frees its data.
- **/
-void
-camel_uid_cache_destroy (CamelUIDCache *cache)
-{
-	g_hash_table_foreach (cache->uids, free_uid, NULL);
-	g_hash_table_destroy (cache->uids);
-	g_free (cache->filename);
-	g_free (cache);
-}
-
-
-/**
- * camel_uid_cache_get_new_uids:
- * @cache: a CamelUIDCache
- * @uids: an array of UIDs
- *
- * Returns an array of UIDs from @uids that are not in @cache, and
- * removes UIDs from @cache that aren't in @uids.
- *
- * Return value: an array of new UIDs, which must be freed with
- * camel_uid_cache_free_uids().
- **/
-GPtrArray *
-camel_uid_cache_get_new_uids (CamelUIDCache *cache, GPtrArray *uids)
-{
-	GPtrArray *new_uids;
-	gpointer old_uid;
-	char *uid;
-	int i;
-	
-	new_uids = g_ptr_array_new ();
-	cache->level++;
-	
-	for (i = 0; i < uids->len; i++) {
-		struct _uid_state *state;
-		
-		uid = uids->pdata[i];
-		if (g_hash_table_lookup_extended (cache->uids, uid, (void **)&old_uid, (void **)&state)) {
-			g_hash_table_remove (cache->uids, uid);
-			g_free (old_uid);
-		} else {
-			g_ptr_array_add (new_uids, g_strdup (uid));
-			state = g_new (struct _uid_state, 1);
-			state->save = FALSE;
-		}
-		
-		state->level = cache->level;
-		g_hash_table_insert (cache->uids, g_strdup (uid), state);
-	}
-	
-	return new_uids;
-}
-
-
-/**
- * camel_uid_cache_save_uid:
- * @cache: a CamelUIDCache
- * @uid: a uid to save
- *
- * Marks a uid for saving.
- **/
-void
-camel_uid_cache_save_uid (CamelUIDCache *cache, const char *uid)
-{
-	struct _uid_state *state;
-	gpointer old_uid;
-	
-	g_return_if_fail (uid != NULL);
-	
-	if (g_hash_table_lookup_extended (cache->uids, uid, (void **)&old_uid, (void **)&state)) {
-		state->save = TRUE;
-		state->level = cache->level;
-	} else {
-		state = g_new (struct _uid_state, 1);
-		state->save = TRUE;
-		state->level = cache->level;
-		
-		g_hash_table_insert (cache->uids, g_strdup (uid), state);
-	}
-}
-
-
-/**
- * camel_uid_cache_free_uids:
- * @uids: an array returned from camel_uid_cache_get_new_uids()
- *
- * Frees the array of UIDs.
- **/
-void
-camel_uid_cache_free_uids (GPtrArray *uids)
-{
-	int i;
-	
-	for (i = 0; i < uids->len; i++)
-		g_free (uids->pdata[i]);
-	g_ptr_array_free (uids, TRUE);
-}