tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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TestUtils.cpp (1923B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "mozilla/dom/TestUtils.h"
      8 
      9 #include "mozilla/ErrorResult.h"
     10 #include "mozilla/dom/Promise.h"
     11 #include "mozilla/dom/TestUtilsBinding.h"
     12 #include "mozilla/dom/WorkerCommon.h"
     13 #include "mozilla/dom/WorkerPrivate.h"
     14 #include "nsJSEnvironment.h"
     15 #include "xpcpublic.h"
     16 
     17 namespace mozilla::dom {
     18 
     19 already_AddRefed<Promise> TestUtils::Gc(const GlobalObject& aGlobal,
     20                                        ErrorResult& aRv) {
     21  nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
     22  RefPtr<Promise> promise = Promise::Create(global, aRv);
     23  if (NS_WARN_IF(aRv.Failed())) {
     24    return nullptr;
     25  }
     26 
     27  // TODO(krosylight): Ideally we could use nsJSContext::IncrementalGC to make
     28  // it actually async, but that's not required right now.
     29 
     30  NS_DispatchToCurrentThread(
     31      NS_NewCancelableRunnableFunction("TestUtils::Gc", [promise] {
     32        if (NS_IsMainThread()) {
     33          nsJSContext::GarbageCollectNow(JS::GCReason::DOM_TESTUTILS,
     34                                         nsJSContext::NonShrinkingGC);
     35          nsJSContext::CycleCollectNow(CCReason::API);
     36        } else {
     37          WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
     38          workerPrivate->GarbageCollectInternal(workerPrivate->GetJSContext(),
     39                                                false /* shrinking */,
     40                                                false /* collect children */);
     41          workerPrivate->CycleCollectInternal(false);
     42        }
     43 
     44        promise->MaybeResolveWithUndefined();
     45      }));
     46 
     47  return promise.forget();
     48 }
     49 
     50 }  // namespace mozilla::dom