X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=classes%2FQueue_item.php;h=8ba3281de39cf30846b57eb61d4403f9099cb22b;hb=67340ce11c773287a4807ddc4567add775a3fcd7;hp=964013f2c8e4da70ccbf299dfb0aeddceccbaa88;hpb=e45a97a20fbe928cafd411803c8840e0cd58d387;p=quix0rs-gnu-social.git

diff --git a/classes/Queue_item.php b/classes/Queue_item.php
index 964013f2c8..8ba3281de3 100644
--- a/classes/Queue_item.php
+++ b/classes/Queue_item.php
@@ -2,23 +2,54 @@
 /**
  * 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 $created;                         // datetime()   not_null
     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 . ' for transport ' . $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;
+	}
 }