Introduce wp_suspend_cache_addition() to allow reduced memory usage when cache additions aren't useful. Fixes #5389.

git-svn-id: http://svn.automattic.com/wordpress/trunk@18681 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2011-09-15 20:23:00 +00:00
parent a96e0dff91
commit cda68f14f9
2 changed files with 27 additions and 0 deletions
--- a/wp-includes/cache.php
+++ b/wp-includes/cache.php
@@ -294,6 +294,9 @@ class WP_Object_Cache {
 	 * @return bool False if cache key and group already exist, true on success
 	 */
 	function add( $key, $data, $group = 'default', $expire = '' ) {
+		if ( wp_suspend_cache_addition() )
+			return false;
+
 		if ( empty ($group) )
 			$group = 'default';