Fix

src/danog/MadelineProto/Shutdown.php

@@ -0,0 +1,90 @@
+<?php
+/**
+ * Shutdown module.
+ *
+ * This file is part of MadelineProto.
+ * MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ * MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Affero General Public License for more details.
+ * You should have received a copy of the GNU General Public License along with MadelineProto.
+ * If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @author    Daniil Gentili <daniil@daniil.it>
+ * @copyright 2016-2019 Daniil Gentili <daniil@daniil.it>
+ * @license   https://opensource.org/licenses/AGPL-3.0 AGPLv3
+ *
+ * @link      https://docs.madelineproto.xyz MadelineProto documentation
+ */
+
+namespace danog\MadelineProto;
+
+/*
+ * Controls script shutdown
+ */
+class Shutdown
+{
+    /**
+     * Callbacks to call on shutdown
+     *
+     * @var array<callable>
+     */
+    private static $callbacks = [];
+    /**
+     * Whether the main shutdown was registered
+     *
+     * @var boolean
+     */
+    private static $registered = false;
+    /**
+     * Incremental ID for new callback
+     *
+     * @var integer
+     */
+    private static $id = 0;
+    /**
+     * Function to be called on shutdown
+     * 
+     * @return void
+     */
+    public static function shutdown()
+    {
+        foreach (self::$callbacks as $callback) {
+            $callback();
+        }
+    }
+    /**
+     * Add a callback for script shutdown
+     * 
+     * @param callable $callback The callback to set
+     * @param null|string $id The optional callback ID
+     * 
+     * @return The callback ID
+     */
+    public static function addCallback($callback, $id = null)
+    {
+        if (!$id) {
+            $id = self::$id++;
+        }
+        self::$callbacks[$id] = $callback;
+        if (!self::$registered) {
+            register_shutdown_function([__CLASS__, 'shutdown']);
+            self::$registered = true;
+        }
+        return $id;
+    }
+    /**
+     * Remove a callback from the script shutdown callable list
+     * 
+     * @param null|string $id The optional callback ID
+     * 
+     * @return bool true if the callback was removed correctly, false otherwise
+     */
+    public static function removeCallback($id)
+    {
+        if (isset(self::$callbacks[$id])) {
+            unset(self::$callbacks[$id]);
+            return true;
+        }
+        return false;
+    }
+}