new appraoch

pancake/system/vendor/illuminate/contracts/Cache/Lock.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace Illuminate\Contracts\Cache;
+
+interface Lock
+{
+    /**
+     * Attempt to acquire the lock.
+     *
+     * @param  callable|null  $callback
+     * @return mixed
+     */
+    public function get($callback = null);
+
+    /**
+     * Attempt to acquire the lock for the given number of seconds.
+     *
+     * @param  int  $seconds
+     * @param  callable|null  $callback
+     * @return mixed
+     */
+    public function block($seconds, $callback = null);
+
+    /**
+     * Release the lock.
+     *
+     * @return bool
+     */
+    public function release();
+
+    /**
+     * Returns the current owner of the lock.
+     *
+     * @return string
+     */
+    public function owner();
+
+    /**
+     * Releases this lock in disregard of ownership.
+     *
+     * @return void
+     */
+    public function forceRelease();
+}