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Test Info: Warnings
- This test gets skipped with pattern: os == 'android'
- Manifest: toolkit/components/aboutmemory/tests/chrome.toml
<?xml version="1.0"?>
type="text/css"?>
<window title="Memory reporters with child processes"
<!-- This file tests (in a rough fashion) whether the memory reporters are
producing sensible results in the presence of child processes. -->
<!-- test results are displayed in the html:body -->
</body>
<!-- test code goes here -->
<script type="application/javascript"><![CDATA[
SimpleTest.waitForExplicitFinish();
let socketProcessRunning = 0;
if (SpecialPowers.Services.io.socketProcessLaunched) {
socketProcessRunning = 1;
}
let numToOpen = 3;
const expectedNumRemotes = numToOpen + socketProcessRunning;
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", 3]]}).then(function() {
for (let i = 0; i < numToOpen; 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 == numToOpen) {
// All the remote processes are ready. Do memory reporting.
doReports();
}
});
mm.loadFrameScript("data:," + encodeURI("sendAsyncMessage('test:ready');"), true);
}, {once: true});
}
});
let mgr = Cc["@mozilla.org/memory-reporter-manager;1"].
getService(Ci.nsIMemoryReporterManager);
function doReports()
{
let residents = {};
let handleReport = function(aProcess, aPath, aKind, aUnits, aAmount) {
if (aProcess.startsWith(`Utility `)) {
// The Utility process that runs the ORB JavaScript validator starts on first
// idle in the parent process. This makes it notoriously hard to know _if_ it
return;
}
if (aPath === "resident") {
ok(100 * 1000 <= aAmount && aAmount <= 10 * 1000 * 1000 * 1000,
"resident is reasonable");
residents[aProcess] = aAmount;
}
}
let processReports = function() {
// First, test a failure case: calling getReports() before the previous
// getReports() has finished should silently abort. (And the arguments
// won't be used.)
mgr.getReports(
() => ok(false, "handleReport called for nested getReports() call"),
null, null, null, /* anonymize = */ false
);
// Close the remote processes.
for (let i = 0; i < numToOpen; i++) {
remotes[i].close();
}
// Check the results.
let processes = Object.keys(residents);
ok(processes.length == expectedNumRemotes + 1, "correct resident count");
let numEmptyProcesses = 0, numNonEmptyProcesses = 0;
for (let i = 0; i < processes.length; i++) {
if (processes[i] == "") {
numEmptyProcesses++;
} else {
ok(processes[i].startsWith("Browser (") || processes[i].startsWith("Web Content (") ||
(processes[i].startsWith("Socket (") && socketProcessRunning)
|| processes[i].startsWith("web (") || processes[i].startsWith("Utility ("),
"correct non-empty process name prefix: " + processes[i]);
numNonEmptyProcesses++;
}
}
ok(numEmptyProcesses == 1, "correct empty process name count");
ok(numNonEmptyProcesses == expectedNumRemotes,
"correct non-empty process name count");
SimpleTest.finish();
}
mgr.getReports(handleReport, null, processReports, null,
/* anonymize = */ false);
}
]]></script>
</window>