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 PCacheOpParent* CacheParent::AllocPCacheOpParent(const CacheOpArgs& aOpArgs) {
  36   if (aOpArgs.type() != CacheOpArgs::TCacheMatchArgs &&
  37       aOpArgs.type() != CacheOpArgs::TCacheMatchAllArgs &&
  38       aOpArgs.type() != CacheOpArgs::TCachePutAllArgs &&
  39       aOpArgs.type() != CacheOpArgs::TCacheDeleteArgs &&
  40       aOpArgs.type() != CacheOpArgs::TCacheKeysArgs) {
  41     MOZ_CRASH("Invalid operation sent to Cache actor!");
  42   }
  43
  44   return new CacheOpParent(Manager(), mCacheId, aOpArgs);
  45 }
  46
  47 bool CacheParent::DeallocPCacheOpParent(PCacheOpParent* aActor) {
  48   delete aActor;
  49   return true;
  50 }
  51
  52 mozilla::ipc::IPCResult CacheParent::RecvPCacheOpConstructor(
  53     PCacheOpParent* aActor, const CacheOpArgs& aOpArgs) {
  54   auto actor = static_cast<CacheOpParent*>(aActor);
  55   actor->Execute(mManager.clonePtr());
  56   return IPC_OK();
  57 }
  58
  59 mozilla::ipc::IPCResult CacheParent::RecvTeardown() {
  60   // If child process is gone, warn and allow actor to clean up normally
  61   QM_WARNONLY_TRY(OkIf(Send__delete__(this)));
  62   return IPC_OK();
  63 }
  64
  65 }  // namespace mozilla::dom::cache