X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=classes%2FQueue_item.php;h=f83c2cef184d49f868d712a82a016fefa34d4c68;hb=bd74f05a665df73078134c37f059cc1797d1a0ea;hp=6b4f5c642ea3d2777c348d9e140a8fbf72c498bc;hpb=6b1f391306b79c3083663d87faee4dc8fa3fea5f;p=quix0rs-gnu-social.git diff --git a/classes/Queue_item.php b/classes/Queue_item.php index 6b4f5c642e..f83c2cef18 100644 --- a/classes/Queue_item.php +++ b/classes/Queue_item.php @@ -2,54 +2,66 @@ /** * Table Definition for queue_item */ -require_once 'DB/DataObject.php'; +require_once INSTALLDIR.'/classes/Memcached_DataObject.php'; -class Queue_item extends DB_DataObject +class Queue_item extends Memcached_DataObject { ###START_AUTOCODE /* the code below is auto generated do not remove the above tag */ public $__table = 'queue_item'; // table name - public $notice_id; // int(4) primary_key not_null - public $transport; // varchar(8) primary_key not_null + public $id; // int(4) primary_key not_null + public $frame; // blob not_null public $created; // datetime() not_null - public $claimed; // datetime() + public $claimed; // datetime() /* Static get */ - function staticGet($k,$v=NULL) { return DB_DataObject::staticGet('Queue_item',$k,$v); } + function staticGet($k,$v=null) + { return Memcached_DataObject::staticGet('Queue_item',$k,$v); } /* the code above is auto generated do not remove the tag below */ ###END_AUTOCODE - function sequenceKey() { return array(false, false); } - - static function top($transport) { - - $qi = new Queue_item(); - $qi->transport = $transport; - $qi->orderBy('created'); - $qi->whereAdd('claimed is NULL'); - - $qi->limit(1); - - $cnt = $qi->find(TRUE); - - if ($cnt) { - # XXX: potential race condition - # can we force it to only update if claimed is still NULL - # (or old)? - common_log(LOG_INFO, 'claiming queue item = ' . $qi->notice_id); - $orig = clone($qi); - $qi->claimed = common_sql_now(); - $result = $qi->update($orig); - if ($result) { - common_log(LOG_INFO, 'claim succeeded.'); - return $qi; - } else { - common_log(LOG_INFO, 'claim failed.'); - } - } - $qi = NULL; - return NULL; - } + /** + * @param mixed $transports name of a single queue or array of queues to pull from + * If not specified, checks all queues in the system. + */ + static function top($transports=null) { + + $qi = new Queue_item(); + if ($transports) { + if (is_array($transports)) { + // @fixme use safer escaping + $list = implode("','", array_map('addslashes', $transports)); + $qi->whereAdd("transport in ('$list')"); + } else { + $qi->transport = $transports; + } + } + $qi->orderBy('created'); + $qi->whereAdd('claimed is null'); + + $qi->limit(1); + + $cnt = $qi->find(true); + + if ($cnt) { + # XXX: potential race condition + # can we force it to only update if claimed is still null + # (or old)? + common_log(LOG_INFO, 'claiming queue item id = ' . $qi->id . + ' for transport ' . $qi->transport); + $orig = clone($qi); + $qi->claimed = common_sql_now(); + $result = $qi->update($orig); + if ($result) { + common_log(LOG_INFO, 'claim succeeded.'); + return $qi; + } else { + common_log(LOG_INFO, 'claim failed.'); + } + } + $qi = null; + return null; + } }