objectcache: Refresh key in HashBagOStuff::set() for maxKeys eviction

[lhc/web/wiklou.git] / includes / libs / objectcache / HashBagOStuff.php

diff --git a/includes/libs/objectcache/HashBagOStuff.php b/includes/libs/objectcache/HashBagOStuff.php
index bdcf180..a058ecf 100644 (file)
--- a/includes/libs/objectcache/HashBagOStuff.php
+++ b/includes/libs/objectcache/HashBagOStuff.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * Object caching using PHP arrays.
+ * Per-process memory cache for storing items.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -23,8 +23,9 @@
 use Wikimedia\Assert\Assert;
 
 /**
- * This is a test of the interface, mainly. It stores things in an associative
- * array, which is not going to persist between program runs.
+ * Simple store for keeping values in an associative array for the current process.
+ *
+ * Data will not persist and is not shared with other processes.
  *
  * @ingroup Cache
  */
@@ -72,6 +73,8 @@ class HashBagOStuff extends BagOStuff {
        }
 
        public function set( $key, $value, $exptime = 0, $flags = 0 ) {
+               // Refresh key position for maxCacheKeys eviction
+               unset( $this->bag[$key] );
                $this->bag[$key] = array(
                        self::KEY_VAL => $value,
                        self::KEY_EXP => $this->convertExpiry( $exptime )