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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
var totalTime;
var fudgeTime;
var elapsedTime;
var endTime;
var iterations;
var cycle;
var results = false;
var TIMEOUT = 15;
/**
* Returns the value of the given property stored in the cookie.
* @param {string} name The property name.
* @return {string} The value of the given property, or empty string
* if the property was not found.
*/
function getPropertyValue(name) {
var cookies = document.cookie.split('; ');
for (var i = 0; i < cookies.length; ++i) {
var t = cookies[i].split('=');
if ((t[0] == name) && t[1])
return t[1];
}
return '';
}
function __get_timings() {
if (sessionStorage == null)
return __get_cookie("__pc_timings");
else {
if (sessionStorage.getItem("__pc_timings") == null)
return "";
else
return sessionStorage["__pc_timings"];
}
}
function __set_timings(timings) {
if (sessionStorage == null)
document.cookie = "__pc_timings=" + timings + "; path=/";
else
sessionStorage["__pc_timings"]=timings;
}
/**
* Starts the next test cycle or redirects the browser to the results page.
*/
function nextCycleOrResults() {
// Call GC twice to cleanup JS heap before starting a new test.
if (window.gc) {
window.gc();
window.gc();
}
var tLag = Date.now() - endTime - TIMEOUT;
if (tLag > 0)
fudgeTime += tLag;
var doc;
if (cycle == iterations) {
document.cookie = '__pc_done=1; path=/';
doc = '../../common/report.html';
} else {
doc = 'index.html';
}
var timings = elapsedTime;
var oldTimings = __get_timings();
if (oldTimings != '')
timings = oldTimings + ',' + timings;
__set_timings(timings);
var url = doc + '?n=' + iterations + '&i=' + cycle +
'&td=' + totalTime + '&tf=' + fudgeTime;
document.location.href = url;
}
/**
* Computes various running times and updates the stats reported at the end.
* @param {!number} cycleTime The running time of the test cycle.
*/
function testComplete(cycleTime) {
if (results)
return;
var oldTotalTime = 0;
var cycleEndTime = Date.now();
var cycleFudgeTime = 0;
var s = document.location.search;
if (s) {
var params = s.substring(1).split('&');
for (var i = 0; i < params.length; i++) {
var f = params[i].split('=');
switch (f[0]) {
case 'skip':
return; // No calculation, just viewing
case 'n':
iterations = f[1];
break;
case 'i':
cycle = f[1] - 0 + 1;
break;
case 'td':
oldTotalTime = f[1] - 0;
break;
case 'tf':
cycleFudgeTime = f[1] - 0;
break;
}
}
}
elapsedTime = cycleTime;
totalTime = oldTotalTime + elapsedTime;
endTime = cycleEndTime;
fudgeTime = cycleFudgeTime;
setTimeout(nextCycleOrResults, TIMEOUT);
}
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