gecko-dev/dom/cache/CacheChild.cpp

203 строки
4.6 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/cache/CacheChild.h"
#include "mozilla/unused.h"
#include "mozilla/dom/cache/ActorUtils.h"
#include "mozilla/dom/cache/Cache.h"
#include "mozilla/dom/cache/PCachePushStreamChild.h"
#include "mozilla/dom/cache/StreamUtils.h"
namespace mozilla {
namespace dom {
namespace cache {
// Declared in ActorUtils.h
PCacheChild*
AllocPCacheChild()
{
return new CacheChild();
}
// Declared in ActorUtils.h
void
DeallocPCacheChild(PCacheChild* aActor)
{
delete aActor;
}
CacheChild::CacheChild()
: mListener(nullptr)
{
MOZ_COUNT_CTOR(cache::CacheChild);
}
CacheChild::~CacheChild()
{
MOZ_COUNT_DTOR(cache::CacheChild);
NS_ASSERT_OWNINGTHREAD(CacheChild);
MOZ_ASSERT(!mListener);
}
void
CacheChild::SetListener(Cache* aListener)
{
NS_ASSERT_OWNINGTHREAD(CacheChild);
MOZ_ASSERT(!mListener);
mListener = aListener;
MOZ_ASSERT(mListener);
}
void
CacheChild::ClearListener()
{
NS_ASSERT_OWNINGTHREAD(CacheChild);
MOZ_ASSERT(mListener);
mListener = nullptr;
}
void
CacheChild::StartDestroy()
{
nsRefPtr<Cache> listener = mListener;
// StartDestroy() can get called from either Cache or the Feature.
// Theoretically we can get double called if the right race happens. Handle
// that by just ignoring the second StartDestroy() call.
if (!listener) {
return;
}
listener->DestroyInternal(this);
// Cache listener should call ClearListener() in DestroyInternal()
MOZ_ASSERT(!mListener);
// Start actor destruction from parent process
unused << SendTeardown();
}
void
CacheChild::ActorDestroy(ActorDestroyReason aReason)
{
NS_ASSERT_OWNINGTHREAD(CacheChild);
nsRefPtr<Cache> listener = mListener;
if (listener) {
listener->DestroyInternal(this);
// Cache listener should call ClearListener() in DestroyInternal()
MOZ_ASSERT(!mListener);
}
RemoveFeature();
}
PCachePushStreamChild*
CacheChild::AllocPCachePushStreamChild()
{
MOZ_CRASH("CachePushStreamChild should be manually constructed.");
return nullptr;
}
bool
CacheChild::DeallocPCachePushStreamChild(PCachePushStreamChild* aActor)
{
delete aActor;
return true;
}
bool
CacheChild::RecvMatchResponse(const RequestId& requestId, const nsresult& aRv,
const PCacheResponseOrVoid& aResponse)
{
NS_ASSERT_OWNINGTHREAD(CacheChild);
AddFeatureToStreamChild(aResponse, GetFeature());
nsRefPtr<Cache> listener = mListener;
if (!listener) {
StartDestroyStreamChild(aResponse);
return true;
}
listener->RecvMatchResponse(requestId, aRv, aResponse);
return true;
}
bool
CacheChild::RecvMatchAllResponse(const RequestId& requestId, const nsresult& aRv,
nsTArray<PCacheResponse>&& aResponses)
{
NS_ASSERT_OWNINGTHREAD(CacheChild);
AddFeatureToStreamChild(aResponses, GetFeature());
nsRefPtr<Cache> listener = mListener;
if (!listener) {
StartDestroyStreamChild(aResponses);
return true;
}
listener->RecvMatchAllResponse(requestId, aRv, aResponses);
return true;
}
bool
CacheChild::RecvAddAllResponse(const RequestId& requestId, const nsresult& aRv)
{
NS_ASSERT_OWNINGTHREAD(CacheChild);
nsRefPtr<Cache> listener = mListener;
if (listener) {
listener->RecvAddAllResponse(requestId, aRv);
}
return true;
}
bool
CacheChild::RecvPutResponse(const RequestId& aRequestId, const nsresult& aRv)
{
NS_ASSERT_OWNINGTHREAD(CacheChild);
nsRefPtr<Cache> listener = mListener;
if (listener) {
listener->RecvPutResponse(aRequestId, aRv);
}
return true;
}
bool
CacheChild::RecvDeleteResponse(const RequestId& requestId, const nsresult& aRv,
const bool& result)
{
NS_ASSERT_OWNINGTHREAD(CacheChild);
nsRefPtr<Cache> listener = mListener;
if (listener) {
listener->RecvDeleteResponse(requestId, aRv, result);
}
return true;
}
bool
CacheChild::RecvKeysResponse(const RequestId& requestId, const nsresult& aRv,
nsTArray<PCacheRequest>&& aRequests)
{
NS_ASSERT_OWNINGTHREAD(CacheChild);
AddFeatureToStreamChild(aRequests, GetFeature());
nsRefPtr<Cache> listener = mListener;
if (!listener) {
StartDestroyStreamChild(aRequests);
return true;
}
listener->RecvKeysResponse(requestId, aRv, aRequests);
return true;
}
} // namespace cache
} // namespace dom
} // namesapce mozilla