Ticket #5389: 5389.static.2.diff

wp-includes/functions.php

@@ -3710 +3710 @@
 }
 
 /**
+ * Temporarily suspend cache additions.
+ *
+ * Stops more data being added to the cache, but still allows cache retrieval.
+ * This is useful for actions, such as imports, when a lot of data would otherwise
+ * be almost uselessly added to the cache.
+ *
+ * Suspension lasts for a single page load at most. Remember to call this
+ * function again if you wish to re-enable cache adds earlier.
+ *
+ * @since 3.3.0
+ *
+ * @param bool $suspend Optional. Suspends additions if true, re-enables them if false.
+ * @return bool The current suspend setting
+ */
+function wp_suspend_cache_addition( $suspend = null ) {
+        static $_suspend = false;
+
+        if ( is_bool( $suspend ) )
+                $_suspend = $suspend;
+
+        return $_suspend;
+}
+
+/**
  * Suspend cache invalidation.
  *
  * Turns cache invalidation on and off.  Useful during imports where you don't wont to do invalidations

wp-includes/cache.php

@@ -294 +294 @@
          * @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';