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