diff options
Diffstat (limited to 'engine/lib/cache.php')
| -rw-r--r-- | engine/lib/cache.php | 157 |
1 files changed, 122 insertions, 35 deletions
diff --git a/engine/lib/cache.php b/engine/lib/cache.php index 47c3af73c..633c470eb 100644 --- a/engine/lib/cache.php +++ b/engine/lib/cache.php @@ -10,15 +10,14 @@ /* Filepath Cache */ /** - * Returns an ElggCache object suitable for caching view - * file load paths to disk under $CONFIG->dataroot. + * Returns an ElggCache object suitable for caching system information * * @todo Can this be done in a cleaner way? * @todo Swap to memcache etc? * - * @return ElggFileCache A cache object suitable for caching file load paths. + * @return ElggFileCache */ -function elgg_get_filepath_cache() { +function elgg_get_system_cache() { global $CONFIG; /** @@ -27,36 +26,40 @@ function elgg_get_filepath_cache() { static $FILE_PATH_CACHE; if (!$FILE_PATH_CACHE) { - $FILE_PATH_CACHE = new ElggFileCache($CONFIG->dataroot); + $FILE_PATH_CACHE = new ElggFileCache($CONFIG->dataroot . 'system_cache/'); } return $FILE_PATH_CACHE; } /** - * Reset the file path cache. + * Reset the system cache by deleting the caches * * @return bool */ -function elgg_filepath_cache_reset() { - $cache = elgg_get_filepath_cache(); - $view_types_result = $cache->delete('view_types'); - $views_result = $cache->delete('views'); - return $view_types_result && $views_result; +function elgg_reset_system_cache() { + $cache = elgg_get_system_cache(); + + $result = true; + $cache_types = array('view_paths', 'view_types'); + foreach ($cache_types as $type) { + $result = $result && $cache->delete($type); + } + return $result; } /** - * Saves a filepath cache. + * Saves a system cache. * * @param string $type The type or identifier of the cache * @param string $data The data to be saved * @return bool */ -function elgg_filepath_cache_save($type, $data) { +function elgg_save_system_cache($type, $data) { global $CONFIG; - if ($CONFIG->viewpath_cache_enabled) { - $cache = elgg_get_filepath_cache(); + if ($CONFIG->system_cache_enabled) { + $cache = elgg_get_system_cache(); return $cache->save($type, $data); } @@ -64,16 +67,16 @@ function elgg_filepath_cache_save($type, $data) { } /** - * Retrieve the contents of the filepath cache. + * Retrieve the contents of a system cache. * * @param string $type The type of cache to load * @return string */ -function elgg_filepath_cache_load($type) { +function elgg_load_system_cache($type) { global $CONFIG; - if ($CONFIG->viewpath_cache_enabled) { - $cache = elgg_get_filepath_cache(); + if ($CONFIG->system_cache_enabled) { + $cache = elgg_get_system_cache(); $cached_data = $cache->load($type); if ($cached_data) { @@ -85,35 +88,74 @@ function elgg_filepath_cache_load($type) { } /** - * Enables the views file paths disk cache. + * Enables the system disk cache. * - * Uses the 'viewpath_cache_enabled' datalist with a boolean value. - * Resets the views paths cache. + * Uses the 'system_cache_enabled' datalist with a boolean value. + * Resets the system cache. * * @return void */ -function elgg_enable_filepath_cache() { +function elgg_enable_system_cache() { global $CONFIG; - datalist_set('viewpath_cache_enabled', 1); - $CONFIG->viewpath_cache_enabled = 1; - elgg_filepath_cache_reset(); + datalist_set('system_cache_enabled', 1); + $CONFIG->system_cache_enabled = 1; + elgg_reset_system_cache(); } /** - * Disables the views file paths disk cache. + * Disables the system disk cache. * - * Uses the 'viewpath_cache_enabled' datalist with a boolean value. - * Resets the views paths cache. + * Uses the 'system_cache_enabled' datalist with a boolean value. + * Resets the system cache. * * @return void */ -function elgg_disable_filepath_cache() { +function elgg_disable_system_cache() { global $CONFIG; - datalist_set('viewpath_cache_enabled', 0); - $CONFIG->viewpath_cache_enabled = 0; - elgg_filepath_cache_reset(); + datalist_set('system_cache_enabled', 0); + $CONFIG->system_cache_enabled = 0; + elgg_reset_system_cache(); +} + +/** @todo deprecate in Elgg 1.9 **/ + +/** + * @access private + */ +function elgg_get_filepath_cache() { + return elgg_get_system_cache(); +} +/** + * @access private + */ +function elgg_filepath_cache_reset() { + return elgg_reset_system_cache(); +} +/** + * @access private + */ +function elgg_filepath_cache_save($type, $data) { + return elgg_save_system_cache($type, $data); +} +/** + * @access private + */ +function elgg_filepath_cache_load($type) { + return elgg_load_system_cache($type); +} +/** + * @access private + */ +function elgg_enable_filepath_cache() { + return elgg_enable_system_cache(); +} +/** + * @access private + */ +function elgg_disable_filepath_cache() { + return elgg_disable_system_cache(); } /* Simplecache */ @@ -353,7 +395,40 @@ function elgg_invalidate_simplecache() { return $return; } -function elgg_cache_init() { +/** + * @see elgg_reset_system_cache() + * @access private + */ +function _elgg_load_cache() { + global $CONFIG; + + $result = true; + $cache_types = array( + 'view_paths' => 'views', + 'view_types' => 'view_types', + ); + $data = array(); + foreach ($cache_types as $type => $var_name) { + $data[$var_name] = elgg_load_system_cache($type); + $result = $result && is_string($data[$var_name]); + } + + if ($result) { + $CONFIG->system_cache_loaded = true; + foreach ($data as $name => $value) { + $CONFIG->$name = unserialize($value); + } + } else { + $CONFIG->system_cache_loaded = false; + } +} + +/** + * @access private + */ +function _elgg_cache_init() { + global $CONFIG; + $viewtype = elgg_get_viewtype(); // Regenerate the simple cache if expired. @@ -368,6 +443,18 @@ function elgg_cache_init() { } $CONFIG->lastcache = $lastcached; } + + // cache system data if enabled and not loaded + if ($CONFIG->system_cache_enabled && !$CONFIG->system_cache_loaded) { + $cache_types = array( + 'view_paths' => 'views', + 'view_types' => 'view_types', + ); + $data = array(); + foreach ($cache_types as $type => $var_name) { + elgg_save_system_cache($type, serialize($CONFIG->$var_name)); + } + } } -elgg_register_event_handler('ready', 'system', 'elgg_cache_init');
\ No newline at end of file +elgg_register_event_handler('ready', 'system', '_elgg_cache_init'); |