Update "mrpetovan" email address
[friendica.git/.git] / src / Core / Cache / MemcachedCacheDriver.php
index 52b6a08..9e9c00f 100644 (file)
@@ -4,12 +4,15 @@ namespace Friendica\Core\Cache;
 
 use Friendica\Core\Cache;
 
+use Exception;
+use Memcached;
+
 /**
  * Memcached Cache Driver
  *
- * @author Hypolite Petovan <mrpetovan@gmail.com>
+ * @author Hypolite Petovan <hypolite@mrpetovan.com>
  */
-class MemcachedCacheDriver extends AbstractCacheDriver
+class MemcachedCacheDriver extends AbstractCacheDriver implements IMemoryCacheDriver
 {
        use TraitCompareSet;
        use TraitCompareDelete;
@@ -19,18 +22,34 @@ class MemcachedCacheDriver extends AbstractCacheDriver
         */
        private $memcached;
 
+       /**
+        * Due to limitations of the INI format, the expected configuration for Memcached servers is the following:
+        * array {
+        *   0 => "hostname, port(, weight)",
+        *   1 => ...
+        * }
+        *
+        * @param array $memcached_hosts
+        * @throws \Exception
+        */
        public function __construct(array $memcached_hosts)
        {
                if (!class_exists('Memcached', false)) {
-                       throw new \Exception('Memcached class isn\'t available');
+                       throw new Exception('Memcached class isn\'t available');
                }
 
-               $this->memcached = new \Memcached();
+               $this->memcached = new Memcached();
+
+               array_walk($memcached_hosts, function (&$value) {
+                       if (is_string($value)) {
+                               $value = array_map('trim', explode(',', $value));
+                       }
+               });
 
                $this->memcached->addServers($memcached_hosts);
 
                if (count($this->memcached->getServerList()) == 0) {
-                       throw new \Exception('Expected Memcached servers aren\'t available, config:' . var_export($memcached_hosts, true));
+                       throw new Exception('Expected Memcached servers aren\'t available, config:' . var_export($memcached_hosts, true));
                }
        }
 
@@ -42,7 +61,7 @@ class MemcachedCacheDriver extends AbstractCacheDriver
                // We fetch with the hostname as key to avoid problems with other applications
                $value = $this->memcached->get($cachekey);
 
-               if ($this->memcached->getResultCode() === \Memcached::RES_SUCCESS) {
+               if ($this->memcached->getResultCode() === Memcached::RES_SUCCESS) {
                        $return = $value;
                }
 
@@ -58,7 +77,7 @@ class MemcachedCacheDriver extends AbstractCacheDriver
                        return $this->memcached->set(
                                $cachekey,
                                $value,
-                               time() + $ttl
+                               $ttl
                        );
                } else {
                        return $this->memcached->set(
@@ -75,9 +94,13 @@ class MemcachedCacheDriver extends AbstractCacheDriver
                return $this->memcached->delete($cachekey);
        }
 
-       public function clear()
+       public function clear($outdated = true)
        {
-               return true;
+               if ($outdated) {
+                       return true;
+               } else {
+                       return $this->memcached->flush();
+               }
        }
 
        /**