gecko-dev/dom/fetch/EmptyBody.cpp

80 строки
2.5 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 "EmptyBody.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTING_ADDREF(EmptyBody)
NS_IMPL_CYCLE_COLLECTING_RELEASE(EmptyBody)
NS_IMPL_CYCLE_COLLECTION_CLASS(EmptyBody)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(EmptyBody)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mOwner)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mAbortSignalImpl)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mFetchStreamReader)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(EmptyBody)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOwner)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAbortSignalImpl)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mFetchStreamReader)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(EmptyBody)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(EmptyBody)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
EmptyBody::EmptyBody(nsIGlobalObject* aGlobal,
mozilla::ipc::PrincipalInfo* aPrincipalInfo,
AbortSignalImpl* aAbortSignalImpl,
already_AddRefed<nsIInputStream> aBodyStream)
: FetchBody<EmptyBody>(aGlobal),
mAbortSignalImpl(aAbortSignalImpl),
mBodyStream(std::move(aBodyStream)) {
if (aPrincipalInfo) {
mPrincipalInfo = MakeUnique<mozilla::ipc::PrincipalInfo>(*aPrincipalInfo);
}
}
EmptyBody::~EmptyBody() = default;
/* static */
already_AddRefed<EmptyBody> EmptyBody::Create(
nsIGlobalObject* aGlobal, mozilla::ipc::PrincipalInfo* aPrincipalInfo,
AbortSignalImpl* aAbortSignalImpl, const nsACString& aMimeType,
ErrorResult& aRv) {
nsCOMPtr<nsIInputStream> bodyStream;
aRv = NS_NewCStringInputStream(getter_AddRefs(bodyStream), EmptyCString());
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
RefPtr<EmptyBody> emptyBody = new EmptyBody(
aGlobal, aPrincipalInfo, aAbortSignalImpl, bodyStream.forget());
emptyBody->OverrideMimeType(aMimeType);
return emptyBody.forget();
}
void EmptyBody::GetBody(nsIInputStream** aStream, int64_t* aBodyLength) {
MOZ_ASSERT(aStream);
if (aBodyLength) {
*aBodyLength = 0;
}
nsCOMPtr<nsIInputStream> bodyStream = mBodyStream;
bodyStream.forget(aStream);
}
} // namespace dom
} // namespace mozilla