From 222b01f5169f1c7e69762e0e8904c24f78f71882 Mon Sep 17 00:00:00 2001
From: Pierre Schmitz <pierre@archlinux.de>
Date: Wed, 28 Jul 2010 11:52:48 +0200
Subject: update to MediaWiki 1.16.0

---
 includes/PoolCounter.php | 64 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 includes/PoolCounter.php

(limited to 'includes/PoolCounter.php')

diff --git a/includes/PoolCounter.php b/includes/PoolCounter.php
new file mode 100644
index 00000000..2564fbc6
--- /dev/null
+++ b/includes/PoolCounter.php
@@ -0,0 +1,64 @@
+<?php
+
+abstract class PoolCounter {
+	public static function factory( $type, $key ) {
+		global $wgPoolCounterConf;
+		if ( !isset( $wgPoolCounterConf[$type] ) ) {
+			return new PoolCounter_Stub;
+		}
+		$conf = $wgPoolCounterConf[$type];
+		$class = $conf['class'];
+		return new $class( $conf, $type, $key );
+	}
+
+	abstract public function acquire();
+	abstract public function release();
+	abstract public function wait();
+
+	public function executeProtected( $mainCallback, $dirtyCallback = false ) {
+		$status = $this->acquire();
+		if ( !$status->isOK() ) {
+			return $status;
+		}
+		if ( !empty( $status->value['overload'] ) ) {
+			# Overloaded. Try a dirty cache entry.
+			if ( $dirtyCallback ) {
+				if ( call_user_func( $dirtyCallback ) ) {
+					$this->release();
+					return Status::newGood();
+				}
+			}
+
+			# Wait for a thread
+			$status = $this->wait();
+			if ( !$status->isOK() ) {
+				$this->release();
+				return $status;
+			}
+		}
+		# Call the main callback
+		call_user_func( $mainCallback );
+		return $this->release();
+	}
+}
+
+class PoolCounter_Stub extends PoolCounter {
+	public function acquire() {
+		return Status::newGood();
+	}
+
+	public function release() {
+		return Status::newGood();
+	}
+
+	public function wait() {
+		return Status::newGood();
+	}
+
+	public function executeProtected( $mainCallback, $dirtyCallback = false ) {
+		call_user_func( $mainCallback );
+		return Status::newGood();
+	}
+}
+
+
-- 
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