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// Copyright (c) 2012 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.
if (!chrome.benchmarking) {
alert("Warning: Looks like you forgot to run chrome with " +
" --enable-benchmarking set.");
return;
}
function setChildTextNode(elementId, text) {
document.getElementById(elementId).innerText = text;
}
// Tests the roundtrip time of sendRequest().
function testRequest() {
setChildTextNode("resultsRequest", "running...");
chrome.tabs.query({active: true, currentWindow: true}, function(tabs) {
var timer = new chrome.Interval();
timer.start();
var tab = tabs[0];
chrome.tabs.sendRequest(tab.id, {counter: 1}, function handler(response) {
if (response.counter < 1000) {
chrome.tabs.sendRequest(tab.id, {counter: response.counter}, handler);
} else {
timer.stop();
var usec = Math.round(timer.microseconds() / response.counter);
setChildTextNode("resultsRequest", usec + "usec");
}
});
});
}
// Tests the roundtrip time of Port.postMessage() after opening a channel.
function testConnect() {
setChildTextNode("resultsConnect", "running...");
chrome.tabs.query({active: true, currentWindow: true}, function(tabs) {
var timer = new chrome.Interval();
timer.start();
var port = chrome.tabs.connect(tabs[0].id);
port.postMessage({counter: 1});
port.onMessage.addListener(function getResp(response) {
if (response.counter < 1000) {
port.postMessage({counter: response.counter});
} else {
timer.stop();
var usec = Math.round(timer.microseconds() / response.counter);
setChildTextNode("resultsConnect", usec + "usec");
}
});
});
}
document.addEventListener('DOMContentLoaded', function() {
document.querySelector('#testRequest').addEventListener(
'click', testRequest);
document.querySelector('#testConnect').addEventListener(
'click', testConnect);
});
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