gecko-dev/dom/cache/AutoUtils.h

174 строки
4.7 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/. */
#ifndef mozilla_dom_cache_AutoUtils_h
#define mozilla_dom_cache_AutoUtils_h
#include "mozilla/Attributes.h"
#include "mozilla/dom/cache/PCacheTypes.h"
#include "mozilla/dom/cache/TypeUtils.h"
#include "nsTArray.h"
struct nsID;
namespace mozilla {
class ErrorResult;
namespace ipc {
class PBackgroundParent;
}
namespace dom {
class InternalRequest;
namespace cache {
class CacheStreamControlParent;
struct SavedRequest;
struct SavedResponse;
class StreamList;
// A collection of RAII-style helper classes to ensure that IPC
// FileDescriptorSet actors are properly cleaned up. The user of these actors
// must manually either Forget() the Fds or Send__delete__() the actor
// depending on if the descriptors were actually sent.
//
// Note, these should only be used when *sending* streams across IPC. The
// deserialization case is handled by creating a ReadStream object.
class MOZ_STACK_CLASS AutoChildBase
{
protected:
typedef TypeUtils::BodyAction BodyAction;
typedef TypeUtils::ReferrerAction ReferrerAction;
typedef TypeUtils::SchemeAction SchemeAction;
AutoChildBase(TypeUtils* aTypeUtils);
virtual ~AutoChildBase() = 0;
TypeUtils* mTypeUtils;
bool mSent;
};
class MOZ_STACK_CLASS AutoChildRequest final : public AutoChildBase
{
public:
explicit AutoChildRequest(TypeUtils* aTypeUtils);
~AutoChildRequest();
void Add(InternalRequest* aRequest, BodyAction aBodyAction,
ReferrerAction aReferrerAction, SchemeAction aSchemeAction,
ErrorResult& aRv);
const PCacheRequest& SendAsRequest();
const PCacheRequestOrVoid& SendAsRequestOrVoid();
private:
PCacheRequestOrVoid mRequestOrVoid;
};
class MOZ_STACK_CLASS AutoChildRequestList final : public AutoChildBase
{
public:
AutoChildRequestList(TypeUtils* aTypeUtils, uint32_t aCapacity);
~AutoChildRequestList();
void Add(InternalRequest* aRequest, BodyAction aBodyAction,
ReferrerAction aReferrerAction, SchemeAction aSchemeAction,
ErrorResult& aRv);
const nsTArray<PCacheRequest>& SendAsRequestList();
private:
// Allocates ~5k inline in the stack-only class
nsAutoTArray<PCacheRequest, 32> mRequestList;
};
class MOZ_STACK_CLASS AutoChildRequestResponse final : public AutoChildBase
{
public:
explicit AutoChildRequestResponse(TypeUtils* aTypeUtils);
~AutoChildRequestResponse();
void Add(InternalRequest* aRequest, BodyAction aBodyAction,
ReferrerAction aReferrerAction, SchemeAction aSchemeAction,
ErrorResult& aRv);
void Add(Response& aResponse, ErrorResult& aRv);
const CacheRequestResponse& SendAsRequestResponse();
private:
CacheRequestResponse mRequestResponse;
};
class MOZ_STACK_CLASS AutoParentBase
{
protected:
explicit AutoParentBase(mozilla::ipc::PBackgroundParent* aManager);
virtual ~AutoParentBase() = 0;
void SerializeReadStream(const nsID& aId, StreamList* aStreamList,
PCacheReadStream* aReadStreamOut);
mozilla::ipc::PBackgroundParent* mManager;
CacheStreamControlParent* mStreamControl;
bool mSent;
};
class MOZ_STACK_CLASS AutoParentRequestList final : public AutoParentBase
{
public:
AutoParentRequestList(mozilla::ipc::PBackgroundParent* aManager,
uint32_t aCapacity);
~AutoParentRequestList();
void Add(const SavedRequest& aSavedRequest, StreamList* aStreamList);
const nsTArray<PCacheRequest>& SendAsRequestList();
private:
// Allocates ~5k inline in the stack-only class
nsAutoTArray<PCacheRequest, 32> mRequestList;
};
class MOZ_STACK_CLASS AutoParentResponseList final : public AutoParentBase
{
public:
AutoParentResponseList(mozilla::ipc::PBackgroundParent* aManager,
uint32_t aCapacity);
~AutoParentResponseList();
void Add(const SavedResponse& aSavedResponse, StreamList* aStreamList);
const nsTArray<PCacheResponse>& SendAsResponseList();
private:
// Allocates ~4k inline in the stack-only class
nsAutoTArray<PCacheResponse, 32> mResponseList;
};
class MOZ_STACK_CLASS AutoParentResponseOrVoid final : public AutoParentBase
{
public:
explicit AutoParentResponseOrVoid(mozilla::ipc::PBackgroundParent* aManager);
~AutoParentResponseOrVoid();
void Add(const SavedResponse& aSavedResponse, StreamList* aStreamList);
const PCacheResponseOrVoid& SendAsResponseOrVoid();
private:
PCacheResponseOrVoid mResponseOrVoid;
};
} // namespace cache
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_cache_AutoUtils_h