remove updatequeue

since all modern browsers can properly handle multiple
xmlhttprequests, we do not need to serialize them ourselves, but
leave it to the browser

this fixes an issue wehre a canceled request of an updatestore
blocks all other updatestores until refresh

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>

Makefile

@@ -16,7 +16,6 @@ JSSRC=					\
 	mixin/CBind.js			\
 	data/reader/JsonObject.js	\
 	data/ProxmoxProxy.js		\
-	data/UpdateQueue.js		\
 	data/UpdateStore.js		\
 	data/DiffStore.js		\
 	data/ObjectStore.js		\

data/UpdateQueue.js

@@ -1,67 +0,0 @@
-// Serialize load (avoid too many parallel connections)
-Ext.define('Proxmox.data.UpdateQueue', {
-    singleton: true,
-
-    constructor : function(){
-        var me = this;
-
-	var queue = [];
-	var queue_idx = {};
-
-	var idle = true;
-
-	var start_update = function() {
-	    if (!idle) {
-		return;
-	    }
-
-	    var storeid = queue.shift();
-	    if (!storeid) {
-		return;
-	    }
-	    var info = queue_idx[storeid];
-	    queue_idx[storeid] = null;
-
-	    info.updatestart = new Date();
-
-	    idle = false;
-	    info.store.load({
-		callback: function(records, operation, success) {
-		    idle = true;
-		    if (info.callback) {
-			var runtime = (new Date()).getTime() - info.updatestart.getTime();
-			info.callback(runtime, success);
-		    }
-		    start_update();
-		}
-	    });
-	};
-
-	Ext.apply(me, {
-	    queue: function(store, cb) {
-		var storeid = store.storeid;
-		if (!storeid) {
-		    throw "unable to queue store without storeid";
-		}
-		if (!queue_idx[storeid]) {
-		    queue_idx[storeid] = {
-			store: store,
-			callback: cb
-		    };
-		    queue.push(storeid);
-		}
-		start_update();
-	    },
-	    unqueue: function(store) {
-		var storeid = store.storeid;
-		if (!storeid) {
-		    throw "unabel to unqueue store without storeid";
-		}
-		if (queue_idx[storeid]) {
-		    Ext.Array.remove(queue,storeid);
-		    queue_idx[storeid] = null;
-		}
-	    }
-	});
-    }
-});

data/UpdateStore.js

@@ -17,8 +17,7 @@ Ext.define('Proxmox.data.UpdateStore', {
 
     destroy: function() {
 	var me = this;
-	me.load_task.cancel();
+	me.stopUpdate();
-	Proxmox.data.UpdateQueue.unqueue(me);
 	me.callParent();
     },
 
@@ -43,7 +42,9 @@ Ext.define('Proxmox.data.UpdateStore', {
 	    }
 
 	    if (Proxmox.Utils.authOK()) {
-		Proxmox.data.UpdateQueue.queue(me, function(runtime, success) {
+		var start = new Date();
+		me.load(function() {
+		    var runtime = (new Date()) - start;
 		    var interval = config.interval + runtime*2;
 		    load_task.delay(interval, run_load_task);
 		});
@@ -61,7 +62,6 @@ Ext.define('Proxmox.data.UpdateStore', {
 	    stopUpdate: function() {
 		me.isStopped = true;
 		load_task.cancel();
-		Proxmox.data.UpdateQueue.unqueue(me);
 	    }
 	});