first commit

vendor/laravel/framework/src/Illuminate/Cache/MemcachedLock.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace Illuminate\Cache;
+
+class MemcachedLock extends Lock
+{
+    /**
+     * The Memcached instance.
+     *
+     * @var \Memcached
+     */
+    protected $memcached;
+
+    /**
+     * Create a new lock instance.
+     *
+     * @param  \Memcached  $memcached
+     * @param  string  $name
+     * @param  int  $seconds
+     * @param  string|null  $owner
+     * @return void
+     */
+    public function __construct($memcached, $name, $seconds, $owner = null)
+    {
+        parent::__construct($name, $seconds, $owner);
+
+        $this->memcached = $memcached;
+    }
+
+    /**
+     * Attempt to acquire the lock.
+     *
+     * @return bool
+     */
+    public function acquire()
+    {
+        return $this->memcached->add(
+            $this->name, $this->owner, $this->seconds
+        );
+    }
+
+    /**
+     * Release the lock.
+     *
+     * @return bool
+     */
+    public function release()
+    {
+        if ($this->isOwnedByCurrentProcess()) {
+            return $this->memcached->delete($this->name);
+        }
+
+        return false;
+    }
+
+    /**
+     * Releases this lock in disregard of ownership.
+     *
+     * @return void
+     */
+    public function forceRelease()
+    {
+        $this->memcached->delete($this->name);
+    }
+
+    /**
+     * Returns the owner value written into the driver for this lock.
+     *
+     * @return mixed
+     */
+    protected function getCurrentOwner()
+    {
+        return $this->memcached->get($this->name);
+    }
+}