A queuehandler for blowing caches offline

We add a queuehandler for blowing the memcached caches off-line. This
should speed up the processing of new notices.

scripts/memcachedqueuehandler.php

@@ -0,0 +1,58 @@
+#!/usr/bin/env php
+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008,2009 Control Yourself, Inc.
+ *
+ * This program 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.
+ *
+ * This program 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 Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// Abort if called from a web server
+
+if (isset($_SERVER) && array_key_exists('REQUEST_METHOD', $_SERVER)) {
+    print "This script must be run from the command line\n";
+    exit();
+}
+
+define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
+define('LACONICA', true);
+
+require_once(INSTALLDIR . '/lib/common.php');
+
+set_error_handler('common_error_handler');
+
+class MemcachedQueueHandler extends QueueHandler
+{
+    function transport()
+    {
+        return 'memcached';
+    }
+
+    function handle_notice($notice)
+    {
+        // XXX: fork here
+        common_log(LOG_INFO, "Blowing memcached for $notice->id\n";
+        $notice->blowCaches();
+        return true;
+    }
+}
+
+ini_set("max_execution_time", "0");
+ini_set("max_input_time", "0");
+set_time_limit(0);
+mb_internal_encoding('UTF-8');
+
+$handler = new MemcachedQueueHandler($resource);
+
+$handler->runOnce();