+
+ return ti_new;
+}
+
+static TreeInfo *createTopTreeInfoNode(TreeInfo *node_first)
+{
+ TreeInfo *ti_new, *ti_new2;
+
+ if (node_first == NULL)
+ return NULL;
+
+ ti_new = newTreeInfo();
+ setTreeInfoToDefaults(ti_new, TREE_TYPE_LEVEL_DIR);
+
+ ti_new->node_parent = NULL;
+ ti_new->parent_link = FALSE;
+
+ setString(&ti_new->identifier, node_first->identifier);
+ setString(&ti_new->name, "level sets");
+ setString(&ti_new->name_sorting, ti_new->name);
+
+ setString(&ti_new->subdir, STRING_TOP_DIRECTORY);
+ setString(&ti_new->fullpath, ".");
+
+ ti_new->sort_priority = node_first->sort_priority;;
+ ti_new->latest_engine = node_first->latest_engine;
+
+ setString(&ti_new->class_desc, "level sets");
+
+ ti_new->node_group = node_first;
+ ti_new->level_group = TRUE;
+
+ ti_new2 = createParentTreeInfoNode(ti_new);
+
+ setString(&ti_new2->name, ".. (main menu)");
+ setString(&ti_new2->name_sorting, ti_new2->name);
+
+ return ti_new;
+}
+
+
+/* -------------------------------------------------------------------------- */
+/* functions for handling level and custom artwork info cache */
+/* -------------------------------------------------------------------------- */
+
+static void LoadArtworkInfoCache()
+{
+ InitCacheDirectory();
+
+ if (artworkinfo_cache_old == NULL)
+ {
+ char *filename = getPath2(getCacheDir(), ARTWORKINFO_CACHE_FILE);
+
+ /* try to load artwork info hash from already existing cache file */
+ artworkinfo_cache_old = loadSetupFileHash(filename);
+
+ /* if no artwork info cache file was found, start with empty hash */
+ if (artworkinfo_cache_old == NULL)
+ artworkinfo_cache_old = newSetupFileHash();
+
+ free(filename);
+ }
+
+ if (artworkinfo_cache_new == NULL)
+ artworkinfo_cache_new = newSetupFileHash();
+}
+
+static void SaveArtworkInfoCache()
+{
+ char *filename = getPath2(getCacheDir(), ARTWORKINFO_CACHE_FILE);
+
+ InitCacheDirectory();
+
+ saveSetupFileHash(artworkinfo_cache_new, filename);
+
+ free(filename);
+}
+
+static char *getCacheTokenPrefix(char *prefix1, char *prefix2)
+{
+ static char *prefix = NULL;
+
+ checked_free(prefix);
+
+ prefix = getStringCat2WithSeparator(prefix1, prefix2, ".");
+
+ return prefix;
+}
+
+/* (identical to above function, but separate string buffer needed -- nasty) */
+static char *getCacheToken(char *prefix, char *suffix)
+{
+ static char *token = NULL;
+
+ checked_free(token);
+
+ token = getStringCat2WithSeparator(prefix, suffix, ".");
+
+ return token;
+}
+
+static char *getFileTimestampString(char *filename)
+{
+ return getStringCopy(i_to_a(getFileTimestampEpochSeconds(filename)));
+}
+
+static boolean modifiedFileTimestamp(char *filename, char *timestamp_string)
+{
+ struct stat file_status;
+
+ if (timestamp_string == NULL)
+ return TRUE;
+
+ if (stat(filename, &file_status) != 0) /* cannot stat file */
+ return TRUE;
+
+ return (file_status.st_mtime != atoi(timestamp_string));
+}
+
+static TreeInfo *getArtworkInfoCacheEntry(LevelDirTree *level_node, int type)
+{
+ char *identifier = level_node->subdir;
+ char *type_string = ARTWORK_DIRECTORY(type);
+ char *token_prefix = getCacheTokenPrefix(type_string, identifier);
+ char *token_main = getCacheToken(token_prefix, "CACHED");
+ char *cache_entry = getHashEntry(artworkinfo_cache_old, token_main);
+ boolean cached = (cache_entry != NULL && strEqual(cache_entry, "true"));
+ TreeInfo *artwork_info = NULL;
+
+ if (!use_artworkinfo_cache)
+ return NULL;
+
+ if (cached)
+ {
+ int i;
+
+ artwork_info = newTreeInfo();
+ setTreeInfoToDefaults(artwork_info, type);
+
+ /* set all structure fields according to the token/value pairs */
+ ldi = *artwork_info;
+ for (i = 0; artworkinfo_tokens[i].type != -1; i++)
+ {
+ char *token = getCacheToken(token_prefix, artworkinfo_tokens[i].text);
+ char *value = getHashEntry(artworkinfo_cache_old, token);
+
+ setSetupInfo(artworkinfo_tokens, i, value);
+
+ /* check if cache entry for this item is invalid or incomplete */
+ if (value == NULL)
+ {
+ Error(ERR_WARN, "cache entry '%s' invalid", token);
+
+ cached = FALSE;
+ }
+ }
+
+ *artwork_info = ldi;
+ }
+
+ if (cached)
+ {
+ char *filename_levelinfo = getPath2(getLevelDirFromTreeInfo(level_node),
+ LEVELINFO_FILENAME);
+ char *filename_artworkinfo = getPath2(getSetupArtworkDir(artwork_info),
+ ARTWORKINFO_FILENAME(type));
+
+ /* check if corresponding "levelinfo.conf" file has changed */
+ token_main = getCacheToken(token_prefix, "TIMESTAMP_LEVELINFO");
+ cache_entry = getHashEntry(artworkinfo_cache_old, token_main);
+
+ if (modifiedFileTimestamp(filename_levelinfo, cache_entry))
+ cached = FALSE;
+
+ /* check if corresponding "<artworkinfo>.conf" file has changed */
+ token_main = getCacheToken(token_prefix, "TIMESTAMP_ARTWORKINFO");
+ cache_entry = getHashEntry(artworkinfo_cache_old, token_main);
+
+ if (modifiedFileTimestamp(filename_artworkinfo, cache_entry))
+ cached = FALSE;
+
+ checked_free(filename_levelinfo);
+ checked_free(filename_artworkinfo);
+ }
+
+ if (!cached && artwork_info != NULL)
+ {
+ freeTreeInfo(artwork_info);
+
+ return NULL;
+ }
+
+ return artwork_info;
+}
+
+static void setArtworkInfoCacheEntry(TreeInfo *artwork_info,
+ LevelDirTree *level_node, int type)
+{
+ char *identifier = level_node->subdir;
+ char *type_string = ARTWORK_DIRECTORY(type);
+ char *token_prefix = getCacheTokenPrefix(type_string, identifier);
+ char *token_main = getCacheToken(token_prefix, "CACHED");
+ boolean set_cache_timestamps = TRUE;
+ int i;
+
+ setHashEntry(artworkinfo_cache_new, token_main, "true");
+
+ if (set_cache_timestamps)
+ {
+ char *filename_levelinfo = getPath2(getLevelDirFromTreeInfo(level_node),
+ LEVELINFO_FILENAME);
+ char *filename_artworkinfo = getPath2(getSetupArtworkDir(artwork_info),
+ ARTWORKINFO_FILENAME(type));
+ char *timestamp_levelinfo = getFileTimestampString(filename_levelinfo);
+ char *timestamp_artworkinfo = getFileTimestampString(filename_artworkinfo);
+
+ token_main = getCacheToken(token_prefix, "TIMESTAMP_LEVELINFO");
+ setHashEntry(artworkinfo_cache_new, token_main, timestamp_levelinfo);
+
+ token_main = getCacheToken(token_prefix, "TIMESTAMP_ARTWORKINFO");
+ setHashEntry(artworkinfo_cache_new, token_main, timestamp_artworkinfo);
+
+ checked_free(filename_levelinfo);
+ checked_free(filename_artworkinfo);
+ checked_free(timestamp_levelinfo);
+ checked_free(timestamp_artworkinfo);
+ }
+
+ ldi = *artwork_info;
+ for (i = 0; artworkinfo_tokens[i].type != -1; i++)
+ {
+ char *token = getCacheToken(token_prefix, artworkinfo_tokens[i].text);
+ char *value = getSetupValue(artworkinfo_tokens[i].type,
+ artworkinfo_tokens[i].value);
+ if (value != NULL)
+ setHashEntry(artworkinfo_cache_new, token, value);
+ }
projects / rocksndiamonds.git / blobdiff