mozilla-central/toolkit/components/aboutmemory/tests/test_dumpGCAndCCLogsToFile.xhtml

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Test Info: Warnings

<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
type="text/css"?>
<window title="GC/CC logging with child processes"
<!-- test results are displayed in the html:body -->
</body>
<!-- test code goes here -->
<script type="application/javascript"><![CDATA[
SimpleTest.waitForExplicitFinish();
let numRemotes = 3;
let numReady = 0;
// Create some remote processes, and set up message-passing so that
// we know when each child is fully initialized.
let remotes = [];
SpecialPowers.pushPrefEnv({"set": [["dom.ipc.processCount", numRemotes]]}).then(function() {
for (let i = 0; i < numRemotes; i++) {
let w = remotes[i] = window.browsingContext.topChromeWindow.open("remote.xhtml", "", "chrome");
w.addEventListener("load", function loadHandler() {
let remoteBrowser = w.document.getElementById("remote");
let mm = remoteBrowser.messageManager;
mm.addMessageListener("test:ready", function readyHandler() {
mm.removeMessageListener("test:ready", readyHandler);
numReady++;
if (numReady == numRemotes) {
// All the remote processes are ready. Run test.
runTest();
}
});
mm.loadFrameScript("data:," + encodeURI("sendAsyncMessage('test:ready');"), true);
}, {once: true});
}
});
let dumper = Cc["@mozilla.org/memory-info-dumper;1"].
getService(Ci.nsIMemoryInfoDumper);
function runTest() {
let numParents = 0;
let numChildren = 0;
dumper.dumpGCAndCCLogsToFile(
/* identifier: */ "test." + Date.now(),
/* allTraces: */ false,
/* childProcesses: */ true,
{
onDump(gcLog, ccLog, isParent) {
if (isParent) {
numParents++;
} else {
numChildren++;
}
checkAndRemoveLog(gcLog);
checkAndRemoveLog(ccLog);
},
onFinish() {
is(numParents, 1, "GC/CC logs for the parent process");
is(numChildren, numRemotes, "GC/CC logs for each child process");
cleanUpAndFinish();
},
}
);
}
function cleanUpAndFinish() {
// Close the remote processes.
for (let i = 0; i < numRemotes; i++) {
remotes[i].close();
}
SimpleTest.finish();
}
function checkAndRemoveLog(logFile) {
let name = logFile.path;
ok(logFile.exists(), "log file "+name+" exists");
ok(logFile.isFile(), "log file "+name+" is a regular file");
ok(logFile.fileSize > 0, "log file "+name+" is not empty");
logFile.remove(/* recursive: */ false);
}
]]></script>
</window>