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