Changeset 23401 for trunk/wp-includes/post.php

Timestamp:

02/11/2013 06:08:14 PM (13 years ago)

Author:

ryan

Message:

Use microtime() instead of incrementors for last_changed to to avoid race conditions with cache evictions.

Props westi
fixes #23448

File:

• trunk/wp-includes/post.php (modified) (2 diffs)

trunk/wp-includes/post.php

@@ -3654 +3654 @@
     $last_changed = wp_cache_get( 'last_changed', 'posts' );
     if ( ! $last_changed ) {
-        $last_changed = 1;
+        $last_changed = microtime();
         wp_cache_set( 'last_changed', $last_changed, 'posts' );
     }
@@ -4673 +4673 @@
     }
 
-    if ( function_exists( 'wp_cache_incr' ) ) {
-        wp_cache_incr( 'last_changed', 1, 'posts' );
-    } else {
-        $last_changed = wp_cache_get( 'last_changed', 'posts' );
-        wp_cache_set( 'last_changed', $last_changed + 1, 'posts' );
-    }
+    wp_cache_set( 'last_changed', microtime(), 'posts' );
 }