<?php
/**
- * Laconica, the distributed open-source microblogging tool
+ * StatusNet, the distributed open-source microblogging tool
*
* Simple-minded queue manager for storing items in the database
*
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category QueueManager
- * @package Laconica
- * @author Evan Prodromou <evan@controlyourself.ca>
- * @author Sarven Capadisli <csarven@controlyourself.ca>
- * @copyright 2009 Control Yourself, Inc.
+ * @package StatusNet
+ * @author Evan Prodromou <evan@status.net>
+ * @copyright 2009 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
- * @link http://laconi.ca/
+ * @link http://status.net/
*/
class DBQueueManager extends QueueManager
$start = time();
$result = null;
+ $sleeptime = 1;
+
do {
$qi = Queue_item::top($queue);
- if (!empty($qi)) {
+ if (empty($qi)) {
+ $this->_log(LOG_DEBUG, "No new queue items, sleeping $sleeptime seconds.");
+ sleep($sleeptime);
+ $sleeptime *= 2;
+ } else {
$notice = Notice::staticGet('id', $qi->notice_id);
if (!empty($notice)) {
$result = $notice;
$qi->free();
$qi = null;
}
+ $sleeptime = 1;
}
} while (empty($result) && (is_null($timeout) || (time() - $start) < $timeout));
} else {
if (empty($qi->claimed)) {
$this->_log(LOG_WARNING, 'Reluctantly releasing unclaimed queue item '.
- 'for '.$notice->id.', queue '.$queue);
+ 'for '.$notice->id.', queue '.$queue);
}
$qi->delete();
$qi->free();
} else {
if (empty($qi->claimed)) {
$this->_log(LOG_WARNING, 'Ignoring failure for unclaimed queue item '.
- 'for '.$notice->id.', queue '.$queue);
+ 'for '.$notice->id.', queue '.$queue);
} else {
$orig = clone($qi);
$qi->claimed = null;