tor-browser

The Tor Browser
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CacheParent.cpp (2184B)

      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/CacheParent.h"
      8 
      9 #include "mozilla/dom/cache/CacheOpParent.h"
     10 #include "nsCOMPtr.h"
     11 
     12 namespace mozilla::dom::cache {
     13 
     14 // Declared in ActorUtils.h
     15 void DeallocPCacheParent(PCacheParent* aActor) { delete aActor; }
     16 
     17 CacheParent::CacheParent(const WeakRefParentType& aManagingActor,
     18                         SafeRefPtr<cache::Manager> aManager, CacheId aCacheId)
     19    : mManagingActor(aManagingActor),
     20      mManager(std::move(aManager)),
     21      mCacheId(aCacheId) {
     22  MOZ_COUNT_CTOR(cache::CacheParent);
     23  MOZ_DIAGNOSTIC_ASSERT(mManager);
     24  mManager->AddRefCacheId(mCacheId);
     25 }
     26 
     27 CacheParent::~CacheParent() {
     28  MOZ_COUNT_DTOR(cache::CacheParent);
     29  MOZ_DIAGNOSTIC_ASSERT(!mManager);
     30 }
     31 
     32 void CacheParent::ActorDestroy(ActorDestroyReason aReason) {
     33  MOZ_DIAGNOSTIC_ASSERT(mManager);
     34  mManager->ReleaseCacheId(mCacheId);
     35  mManager = nullptr;
     36 }
     37 
     38 already_AddRefed<PCacheOpParent> CacheParent::AllocPCacheOpParent(
     39    const CacheOpArgs& aOpArgs) {
     40  if (aOpArgs.type() != CacheOpArgs::TCacheMatchArgs &&
     41      aOpArgs.type() != CacheOpArgs::TCacheMatchAllArgs &&
     42      aOpArgs.type() != CacheOpArgs::TCachePutAllArgs &&
     43      aOpArgs.type() != CacheOpArgs::TCacheDeleteArgs &&
     44      aOpArgs.type() != CacheOpArgs::TCacheKeysArgs) {
     45    MOZ_CRASH("Invalid operation sent to Cache actor!");
     46  }
     47 
     48  return MakeAndAddRef<CacheOpParent>(mManagingActor, aOpArgs, mCacheId);
     49 }
     50 
     51 mozilla::ipc::IPCResult CacheParent::RecvPCacheOpConstructor(
     52    PCacheOpParent* aActor, const CacheOpArgs& aOpArgs) {
     53  auto* actor = static_cast<CacheOpParent*>(aActor);
     54  actor->Execute(mManager.clonePtr());
     55  return IPC_OK();
     56 }
     57 
     58 mozilla::ipc::IPCResult CacheParent::RecvTeardown() {
     59  // If child process is gone, warn and allow actor to clean up normally
     60  QM_WARNONLY_TRY(OkIf(Send__delete__(this)));
     61  return IPC_OK();
     62 }
     63 
     64 }  // namespace mozilla::dom::cache