add standard directories

Added some of the standard directories darcs-hash:20080506151729-84dde-563da8505e06a7302041c93ab157ced31165876c.gz
2008-05-06 11:17:29 -04:00
parent d4fd1c505e
commit 1d4f1f6bf6
2606 changed files with 149375 additions and 0 deletions
--- a/_darcs/pristine/lib/queuehandler.php
+++ b/_darcs/pristine/lib/queuehandler.php
@@ -0,0 +1,132 @@
+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, Controlez-Vous, 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/>.
+ */
+
+define('CLAIM_TIMEOUT', 1200);
+
+if (!defined('LACONICA')) { exit(1); }
+
+require_once(INSTALLDIR.'/lib/daemon.php');
+require_once(INSTALLDIR.'/classes/Queue_item.php');
+require_once(INSTALLDIR.'/classes/Notice.php');
+
+class QueueHandler extends Daemon {
+
+	var $_id = 'generic';
+
+	function QueueHandler($id=NULL) {
+		if ($id) {
+			$this->set_id($id);
+		}
+	}
+	
+	function class_name() {
+		return ucfirst($this->transport()) . 'Handler';
+	}
+
+	function name() {
+		return strtolower($this->class_name().'.'.$this->get_id());
+	}
+	
+	function get_id() {
+		return $this->_id;
+	}
+
+	function set_id($id) {
+		$this->_id = $id;
+	}
+	
+	function transport() {
+		return NULL;
+	}
+	
+	function start() {
+	}
+	
+	function finish() {
+	}
+
+	function handle_notice($notice) {
+		return true;
+	}
+	
+	function run() {
+		if (!$this->start()) {
+			return false;
+		}
+		$this->log(LOG_INFO, 'checking for queued notices');
+		$transport = $this->transport();
+		do {
+			$qi = Queue_item::top($transport);
+			if ($qi) {
+				$this->log(LOG_INFO, 'Got item enqueued '.common_exact_date($qi->created));
+				$notice = Notice::staticGet($qi->notice_id);
+				if ($notice) {
+					$this->log(LOG_INFO, 'broadcasting notice ID = ' . $notice->id);
+					# XXX: what to do if broadcast fails?
+					$result = $this->handle_notice($notice);
+					if (!$result) {
+						$this->log(LOG_WARNING, 'Failed broadcast for notice ID = ' . $notice->id);
+						$orig = $qi;
+						$qi->claimed = NULL;
+						$qi->update($orig);
+						$this->log(LOG_WARNING, 'Abandoned claim for notice ID = ' . $notice->id);
+						continue;
+					}
+					$this->log(LOG_INFO, 'finished broadcasting notice ID = ' . $notice->id);
+					$notice->free();
+					unset($notice);
+					$notice = NULL;
+				} else {
+					$this->log(LOG_WARNING, 'queue item for notice that does not exist');
+				}
+				$qi->delete();
+				$qi->free();
+				unset($qi);
+				$this->idle(0);
+			} else {
+				$this->clear_old_claims();
+				$this->idle(5);
+			}	
+		} while (true);
+		if (!$this->finish()) {
+			return false;
+		}
+		return true;
+	}
+
+	function idle($timeout=0) {
+		if ($timeout>0) {
+			sleep($timeout);
+		}
+	}
+	
+	function clear_old_claims() {
+		$qi = new Queue_item();
+		$qi->transport = $this->transport();
+		$qi->whereAdd('now() - claimed > '.CLAIM_TIMEOUT);
+		$qi->update(DB_DATAOBJECT_WHEREADD_ONLY);
+		$qi->free();
+		unset($qi);
+	}
+	
+	function log($level, $msg) {
+		common_log($level, $this->class_name() . ' ('. $this->get_id() .'): '.$msg);
+	}
+}
+