first commit

vendor/doctrine/cache/lib/Doctrine/Common/Cache/MemcacheCache.php

@@ -0,0 +1,104 @@
+<?php
+
+namespace Doctrine\Common\Cache;
+
+use Memcache;
+use function time;
+
+/**
+ * Memcache cache provider.
+ *
+ * @deprecated
+ *
+ * @link   www.doctrine-project.org
+ */
+class MemcacheCache extends CacheProvider
+{
+    /** @var Memcache|null */
+    private $memcache;
+
+    /**
+     * Sets the memcache instance to use.
+     *
+     * @return void
+     */
+    public function setMemcache(Memcache $memcache)
+    {
+        $this->memcache = $memcache;
+    }
+
+    /**
+     * Gets the memcache instance used by the cache.
+     *
+     * @return Memcache|null
+     */
+    public function getMemcache()
+    {
+        return $this->memcache;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch($id)
+    {
+        return $this->memcache->get($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doContains($id)
+    {
+        $flags = null;
+        $this->memcache->get($id, $flags);
+
+        //if memcache has changed the value of "flags", it means the value exists
+        return $flags !== null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave($id, $data, $lifeTime = 0)
+    {
+        if ($lifeTime > 30 * 24 * 3600) {
+            $lifeTime = time() + $lifeTime;
+        }
+
+        return $this->memcache->set($id, $data, 0, (int) $lifeTime);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete($id)
+    {
+        // Memcache::delete() returns false if entry does not exist
+        return $this->memcache->delete($id) || ! $this->doContains($id);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFlush()
+    {
+        return $this->memcache->flush();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doGetStats()
+    {
+        $stats = $this->memcache->getStats();
+
+        return [
+            Cache::STATS_HITS   => $stats['get_hits'],
+            Cache::STATS_MISSES => $stats['get_misses'],
+            Cache::STATS_UPTIME => $stats['uptime'],
+            Cache::STATS_MEMORY_USAGE     => $stats['bytes'],
+            Cache::STATS_MEMORY_AVAILABLE => $stats['limit_maxbytes'],
+        ];
+    }
+}