WebUI: Prevent excessive sync requests

Don't sync main data if a request to do so is already in progress.

This prevents piling up of requests and bogging down slow/busy machines, since the current implementation of `/api/v2/sync/maindata` is very computationally intensive, especially with lots of torrents.

Everything gets updated on the next scheduled request anyway (via the timeout mechanism).
This commit is contained in:
FranciscoPombal 2019-12-29 14:19:27 +00:00
commit d4f49c3666

View file

@ -41,6 +41,7 @@ var queueing_enabled = true;
var serverSyncMainDataInterval = 1500; var serverSyncMainDataInterval = 1500;
var customSyncMainDataInterval = null; var customSyncMainDataInterval = null;
let syncRequestInProgress = false;
var clipboardEvent; var clipboardEvent;
var CATEGORIES_ALL = 1; var CATEGORIES_ALL = 1;
@ -334,7 +335,7 @@ window.addEvent('load', function() {
var syncMainData = function() { var syncMainData = function() {
var url = new URI('api/v2/sync/maindata'); var url = new URI('api/v2/sync/maindata');
url.setData('rid', syncMainDataLastResponseId); url.setData('rid', syncMainDataLastResponseId);
new Request.JSON({ const request = new Request.JSON({
url: url, url: url,
noCache: true, noCache: true,
method: 'get', method: 'get',
@ -342,8 +343,8 @@ window.addEvent('load', function() {
var errorDiv = $('error_div'); var errorDiv = $('error_div');
if (errorDiv) if (errorDiv)
errorDiv.set('html', 'QBT_TR(qBittorrent client is not reachable)QBT_TR[CONTEXT=HttpServer]'); errorDiv.set('html', 'QBT_TR(qBittorrent client is not reachable)QBT_TR[CONTEXT=HttpServer]');
clearTimeout(syncMainDataTimer); syncRequestInProgress = false;
syncMainDataTimer = syncMainData.delay(2000); syncData(2000);
}, },
onSuccess: function(response) { onSuccess: function(response) {
$('error_div').set('html', ''); $('error_div').set('html', '');
@ -426,18 +427,26 @@ window.addEvent('load', function() {
// re-select previously selected rows // re-select previously selected rows
torrentsTable.reselectRows(torrentsTableSelectedRows); torrentsTable.reselectRows(torrentsTableSelectedRows);
} }
clearTimeout(syncMainDataTimer); syncRequestInProgress = false;
syncMainDataTimer = syncMainData.delay(getSyncMainDataInterval()); syncData(getSyncMainDataInterval())
} }
}).send(); });
syncRequestInProgress = true;
request.send();
}; };
updateMainData = function() { updateMainData = function() {
torrentsTable.updateTable(); torrentsTable.updateTable();
clearTimeout(syncMainDataTimer); syncData(100);
syncMainDataTimer = syncMainData.delay(100);
}; };
const syncData = function(delay) {
if (!syncRequestInProgress){
clearTimeout(syncMainDataTimer);
syncMainDataTimer = syncMainData.delay(delay);
}
}
var processServerState = function() { var processServerState = function() {
var transfer_info = friendlyUnit(serverState.dl_info_speed, true); var transfer_info = friendlyUnit(serverState.dl_info_speed, true);
if (serverState.dl_rate_limit > 0) if (serverState.dl_rate_limit > 0)
@ -607,8 +616,7 @@ window.addEvent('load', function() {
$("mainColumn").removeClass("invisible"); $("mainColumn").removeClass("invisible");
customSyncMainDataInterval = null; customSyncMainDataInterval = null;
clearTimeout(syncMainDataTimer); syncData(100);
syncMainDataTimer = syncMainData.delay(100);
hideSearchTab(); hideSearchTab();
}; };