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<!DOCTYPE HTML>
<html>
<!--
Bug 1132764 - Test controlling the maximum allocations log length over the RDP.
-->
<head>
<meta charset="utf-8">
<title>Memory monitoring actor test</title>
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">
</head>
<body>
<pre id="test">
<script src="memory-helpers.js" type="application/javascript;version=1.8"></script>
<script>
window.onload = function() {
SimpleTest.waitForExplicitFinish();
Task.spawn(function* () {
var { memory, client } = yield startServerAndGetSelectedTabMemory();
yield memory.attach();
var allocs = [];
var eventsFired = 0;
var intervalId = null;
function onAlloc () {
eventsFired++;
}
function startAllocating () {
intervalId = setInterval(() => {
for (var i = 100000; --i;) {
allocs.push(new Object());
}
}, 1);
}
function stopAllocating () {
clearInterval(intervalId);
}
memory.on("allocations", onAlloc);
yield memory.startRecordingAllocations({
drainAllocationsTimeout: 10
});
yield waitUntil(() => eventsFired > 5);
ok(eventsFired > 5, "Some allocation events fired without allocating much via auto drain");
yield memory.stopRecordingAllocations();
// Set a really high auto drain timer so we can test if
// it fires on GC
eventsFired = 0;
var startTime = performance.now();
var drainTimer = 1000000;
yield memory.startRecordingAllocations({
drainAllocationsTimeout: drainTimer
});
startAllocating();
yield waitUntil(() => {
Cu.forceGC();
return eventsFired > 1;
});
stopAllocating();
ok(performance.now() - drainTimer < startTime, "Allocation events fired on GC before timer");
yield memory.stopRecordingAllocations();
memory.off("allocations", onAlloc);
yield memory.detach();
destroyServerAndFinish(client);
});
};
</script>
</pre>
</body>
</html>
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