node-webodf
Version:
WebODF - JavaScript Document Engine http://webodf.org/
57 lines (54 loc) • 1.76 kB
JavaScript
/**
* Copyright (C) 2012 KO GmbH <copyright@kogmbh.com>
*
* @licstart
* This file is part of WebODF.
*
* WebODF is free software: you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License (GNU AGPL)
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* WebODF is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with WebODF. If not, see <http://www.gnu.org/licenses/>.
* @licend
*
* @source: http://www.webodf.org/
* @source: https://github.com/kogmbh/WebODF/
*/
/*global core,runtime */
/**
* An iterator that iterators through positions in a DOM tree.
* @constructor
* @param {!number} timeout
* @param {!number=} maxChecks
*/
core.LoopWatchDog = function LoopWatchDog(timeout, maxChecks) {
"use strict";
var startTime = Date.now(),
/**@type{!number}*/
checks = 0;
function check() {
var t;
if (timeout) {
t = Date.now();
if (t - startTime > timeout) {
runtime.log("alert", "watchdog timeout");
throw "timeout!";
}
}
if (maxChecks > 0) {
checks += 1;
if (checks > maxChecks) {
runtime.log("alert", "watchdog loop overflow");
throw "loop overflow";
}
}
}
this.check = check;
};