зеркало из https://github.com/mozilla/gecko-dev.git
78 строки
2.5 KiB
HTML
78 строки
2.5 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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Test that high-priority processes downgrade the CPU priority of regular
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processes.
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This is just like test_HighPriorityDowngrade, except instead of waiting for the
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high-priority process's wake lock to expire, we kill the process by removing
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its iframe from the DOM.
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-->
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<head>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<script type="application/javascript" src="../browserElementTestHelpers.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<script type="application/javascript;version=1.7">
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"use strict";
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SimpleTest.waitForExplicitFinish();
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browserElementTestHelpers.setEnabledPref(true);
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browserElementTestHelpers.addPermission();
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browserElementTestHelpers.enableProcessPriorityManager();
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SpecialPowers.addPermission("embed-apps", true, document);
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function runTest() {
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var iframe = document.createElement('iframe');
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iframe.setAttribute('mozbrowser', true);
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iframe.src = browserElementTestHelpers.emptyPage1;
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var highPriorityIframe = null;
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var childID = null;
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expectProcessCreated().then(function(chid) {
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childID = chid;
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return expectPriorityChange(childID, 'FOREGROUND', 'CPU_NORMAL');
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}).then(function() {
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// Create a new, high-priority iframe.
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highPriorityIframe = document.createElement('iframe');
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highPriorityIframe.setAttribute('mozbrowser', true);
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highPriorityIframe.setAttribute('expecting-system-message', true);
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highPriorityIframe.setAttribute('mozapptype', 'critical');
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highPriorityIframe.setAttribute('mozapp', 'http://example.org/manifest.webapp');
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highPriorityIframe.src = browserElementTestHelpers.emptyPage2;
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var p = Promise.all(
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[expectPriorityChange(childID, 'FOREGROUND', 'CPU_LOW'),
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expectMozbrowserEvent(highPriorityIframe, 'loadend')]
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);
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document.body.appendChild(highPriorityIframe);
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return p;
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}).then(function() {
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// Killing the high-priority iframe should cause our CPU priority to go back
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// up to regular.
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var p = expectPriorityChange(childID, 'FOREGROUND', 'CPU_NORMAL');
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document.body.removeChild(highPriorityIframe);
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return p;
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}).then(SimpleTest.finish);
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document.body.appendChild(iframe);
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}
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addEventListener('testready', function() {
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// Cause the CPU wake lock taken on behalf of the high-priority process never
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// to time out during this test.
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SpecialPowers.pushPrefEnv(
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{set: [["dom.ipc.systemMessageCPULockTimeoutSec", 1000]]},
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runTest);
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});
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</script>
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</body>
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</html>
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