X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=classes%2FQueue_item.php;h=9b909ec22ba8360ca1f39ee5f990cd47ed92f3e7;hb=48d671ac39de0ebfd36858d784d3066ecbb89c10;hp=a953e141b874e22c16c4c0dfbb15c2f7f030b584;hpb=53f59ca9d27de3b31923a6e658fe8b20463d12f0;p=quix0rs-gnu-social.git

diff --git a/classes/Queue_item.php b/classes/Queue_item.php
index a953e141b8..9b909ec22b 100644
--- a/classes/Queue_item.php
+++ b/classes/Queue_item.php
@@ -2,24 +2,56 @@
 /**
  * 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)   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); }
+    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;
+    }
 }