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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
const { setTimeout } = ChromeUtils.import("resource://gre/modules/Timer.jsm");
var EXPORTED_SYMBOLS = ["ContentCollector"];
// This listens for the message "browser-test:collect-request". When it gets it,
// it runs some GCs and CCs, then prints out a message indicating the collections
// are complete. Mochitest uses this information to determine when windows and
// docshells should be destroyed.
var ContentCollector = {
init() {
let processType = Services.appinfo.processType;
if (processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT) {
// In the main process, we handle triggering collections in browser-test.js
return;
}
Services.cpmm.addMessageListener("browser-test:collect-request", this);
},
receiveMessage(aMessage) {
switch (aMessage.name) {
case "browser-test:collect-request":
Services.obs.notifyObservers(null, "memory-pressure", "heap-minimize");
Cu.forceGC();
Cu.forceCC();
let shutdownCleanup = aCallback => {
Cu.schedulePreciseShrinkingGC(() => {
// Run the GC and CC a few times to make sure that as much
// as possible is freed.
Cu.forceGC();
Cu.forceCC();
aCallback();
});
};
shutdownCleanup(() => {
setTimeout(() => {
shutdownCleanup(() => {
this.finish();
});
}, 1000);
});
break;
}
},
finish() {
let pid = Services.appinfo.processID;
dump("Completed ShutdownLeaks collections in process " + pid + "\n");
Services.cpmm.removeMessageListener("browser-test:collect-request", this);
},
};
ContentCollector.init();
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