From 10bb2f121450eacea7e69ed7eda6ddd312ed89f6 Mon Sep 17 00:00:00 2001
From: Maximilian Mader <max@bastelstu.be>
Date: Wed, 31 Dec 2014 16:57:42 +0100
Subject: [PATCH] Implement RedisCacheSource::getCacheName()

---
 .../cache/source/RedisCacheSource.class.php   | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php b/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php
index a1ee065cb0..aac947eab8 100644
--- a/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php
+++ b/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php
@@ -113,4 +113,24 @@ class RedisCacheSource implements ICacheSource {
 			$this->redis->setex($cacheName, $this->getTTL($maxLifetime), serialize($value));
 		}
 	}
+	
+	/**
+	 * Returns the name for the given cache name in respect to flush count.
+	 * 
+	 * @param	string		$cacheName
+	 * @return	string
+	 */
+	protected function getCacheName($cacheName) {
+		$flush = $this->redis->get('_flush');
+		
+		// create flush counter if it does not exist
+		if ($flush === false) {
+			$this->redis->setnx('_flush', TIME_NOW);
+			$this->redis->incr('_flush');
+			
+			$flush = $this->redis->get('_flush');
+		}
+		
+		return $flush.':'.$cacheName;
+	}
 }
-- 
2.20.1