dom/cache/ActorChild.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   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/cache/ActorChild.h"
   8
   9 #include "mozilla/dom/cache/CacheWorkerRef.h"
  10 #include "nsThreadUtils.h"
  11
  12 namespace mozilla::dom::cache {
  13
  14 void ActorChild::SetWorkerRef(SafeRefPtr<CacheWorkerRef> aWorkerRef) {
  15   // Some of the Cache actors can have multiple DOM objects associated with
  16   // them.  In this case the workerRef will be added multiple times.  This is
  17   // permitted, but the workerRef should be the same each time.
  18   if (mWorkerRef) {
  19     // XXX Here, we don't use aWorkerRef, so we unnecessarily add-refed... This
  20     // might be a case to show in the raw pointer guideline as a possible
  21     // exception, if warranted by performance analyses.
  22
  23     MOZ_DIAGNOSTIC_ASSERT(mWorkerRef == aWorkerRef);
  24     return;
  25   }
  26
  27   mWorkerRef = std::move(aWorkerRef);
  28   if (mWorkerRef) {
  29     mWorkerRef->AddActor(*this);
  30   }
  31 }
  32
  33 void ActorChild::RemoveWorkerRef() {
  34   MOZ_ASSERT_IF(!NS_IsMainThread(), mWorkerRef);
  35   if (mWorkerRef) {
  36     mWorkerRef->RemoveActor(*this);
  37     mWorkerRef = nullptr;
  38   }
  39 }
  40
  41 const SafeRefPtr<CacheWorkerRef>& ActorChild::GetWorkerRefPtr() const {
  42   return mWorkerRef;
  43 }
  44
  45 bool ActorChild::WorkerRefNotified() const {
  46   return mWorkerRef && mWorkerRef->Notified();
  47 }
  48
  49 ActorChild::ActorChild() = default;
  50
  51 ActorChild::~ActorChild() { MOZ_DIAGNOSTIC_ASSERT(!mWorkerRef); }
  52
  53 }  // namespace mozilla::dom::cache