[pve-devel] r5501 - pve-manager/pve2/www/manager/data

[svn-commits at proxmox.com]

Author: dietmar
Date: 2011-02-10 11:32:58 +0100 (Thu, 10 Feb 2011)
New Revision: 5501

Modified:
   pve-manager/pve2/www/manager/data/UpdateStore.js
Log:
Serialize load (avoid too many parallel connections)


Modified: pve-manager/pve2/www/manager/data/UpdateStore.js
===================================================================
--- pve-manager/pve2/www/manager/data/UpdateStore.js	2011-02-10 09:35:53 UTC (rev 5500)
+++ pve-manager/pve2/www/manager/data/UpdateStore.js	2011-02-10 10:32:58 UTC (rev 5501)
@@ -1,5 +1,42 @@
 Ext.ns("PVE.data");
 
+// Serialize load (avoid too many parallel connections)
+PVE.data.UpdateQueue = function() {
+
+    var queue = [];
+    var queue_idx = {};
+
+    var idle = true;
+
+    var start_update = function() {
+	if (!idle)
+	    return;
+	var store = queue.shift();
+	if (!store)
+	    return;
+
+	queue_idx[store.itype] = null;
+
+	idle = false;
+	store.load({
+	    callback: function() {
+		idle = true;
+		start_update();
+	    }
+	});
+    };
+
+    return {
+	queue: function(store) {
+	    if (queue_idx[store.itype])
+		return;
+	    queue_idx[store.itype] = store;
+	    queue.push(store);
+	    start_update();
+	}
+    };
+}();
+
 PVE.data.UpdateStore = Ext.extend(Ext.data.JsonStore, {
 
     constructor: function(config) {
@@ -10,8 +47,7 @@
 	var run_load_task = function(delay) {
 	    if (!load_task) {
 		load_task = new Ext.util.DelayedTask(function() {
-		    //console.log("LOAD " + self.itype);
-		    self.load();
+		    PVE.data.UpdateQueue.queue(self);
 		});
 	    }