gecko-dev/dom/base/TestUtils.cpp

51 строка
1.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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/. */
#include "mozilla/dom/TestUtils.h"
#include "mozilla/dom/TestUtilsBinding.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/WorkerCommon.h"
#include "mozilla/dom/WorkerPrivate.h"
#include "nsJSEnvironment.h"
#include "xpcpublic.h"
namespace mozilla::dom {
already_AddRefed<Promise> TestUtils::Gc(const GlobalObject& aGlobal,
ErrorResult& aRv) {
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
RefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
// TODO(krosylight): Ideally we could use nsJSContext::IncrementalGC to make
// it actually async, but that's not required right now.
NS_DispatchToCurrentThread(
NS_NewCancelableRunnableFunction("TestUtils::Gc", [promise] {
if (NS_IsMainThread()) {
nsJSContext::GarbageCollectNow(JS::GCReason::DOM_TESTUTILS,
nsJSContext::NonShrinkingGC);
nsJSContext::CycleCollectNow(CCReason::API);
} else {
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
workerPrivate->GarbageCollectInternal(workerPrivate->GetJSContext(),
false /* shrinking */,
false /* collect children */);
workerPrivate->CycleCollectInternal(false);
}
promise->MaybeResolveWithUndefined();
}));
return promise.forget();
}
} // namespace mozilla::dom