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/* -*- 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 "ServiceWorkerCloneData.h"
#include <utility>
#include "mozilla/RefPtr.h"
#include "mozilla/dom/DOMTypes.h"
#include "mozilla/dom/StructuredCloneHolder.h"
#include "nsISerialEventTarget.h"
#include "nsProxyRelease.h"
#include "nsThreadUtils.h"
namespace mozilla {
namespace dom {
ServiceWorkerCloneData::~ServiceWorkerCloneData() {
RefPtr<ipc::SharedJSAllocatedData> sharedData = TakeSharedData();
if (sharedData) {
NS_ProxyRelease(__func__, mEventTarget, sharedData.forget());
}
}
ServiceWorkerCloneData::ServiceWorkerCloneData()
: ipc::StructuredCloneData(
StructuredCloneHolder::StructuredCloneScope::UnknownDestination,
StructuredCloneHolder::TransferringSupported),
mEventTarget(GetCurrentSerialEventTarget()),
mIsErrorMessageData(false) {
MOZ_DIAGNOSTIC_ASSERT(mEventTarget);
}
bool ServiceWorkerCloneData::
StealFromAndBuildClonedMessageDataForBackgroundParent(
ClonedOrErrorMessageData& aFromClonedData,
mozilla::ipc::PBackgroundParent* aParent,
ClonedOrErrorMessageData& aToClonedData) {
if (aFromClonedData.type() == ClonedOrErrorMessageData::TErrorMessageData) {
mIsErrorMessageData = true;
aToClonedData = ErrorMessageData();
return true;
}
MOZ_DIAGNOSTIC_ASSERT(aFromClonedData.type() ==
ClonedOrErrorMessageData::TClonedMessageData);
StructuredCloneData::StealFromClonedMessageDataForBackgroundParent(
aFromClonedData);
ClonedMessageData messageData;
if (!StructuredCloneData::BuildClonedMessageDataForBackgroundParent(
aParent, messageData)) {
return false;
}
aToClonedData = std::move(messageData);
return true;
}
bool ServiceWorkerCloneData::BuildClonedMessageDataForBackgroundChild(
mozilla::ipc::PBackgroundChild* aChild,
ClonedOrErrorMessageData& aClonedData) {
if (IsErrorMessageData()) {
aClonedData = ErrorMessageData();
return true;
}
MOZ_DIAGNOSTIC_ASSERT(
CloneScope() ==
StructuredCloneHolder::StructuredCloneScope::DifferentProcess);
ClonedMessageData messageData;
if (!StructuredCloneData::BuildClonedMessageDataForBackgroundChild(
aChild, messageData)) {
return false;
}
aClonedData = std::move(messageData);
return true;
}
void ServiceWorkerCloneData::CopyFromClonedMessageDataForBackgroundParent(
const ClonedOrErrorMessageData& aClonedData) {
if (aClonedData.type() == ClonedOrErrorMessageData::TErrorMessageData) {
mIsErrorMessageData = true;
return;
}
MOZ_DIAGNOSTIC_ASSERT(aClonedData.type() ==
ClonedOrErrorMessageData::TClonedMessageData);
StructuredCloneData::CopyFromClonedMessageDataForBackgroundParent(
aClonedData);
}
void ServiceWorkerCloneData::CopyFromClonedMessageDataForBackgroundChild(
const ClonedOrErrorMessageData& aClonedData) {
if (aClonedData.type() == ClonedOrErrorMessageData::TErrorMessageData) {
mIsErrorMessageData = true;
return;
}
MOZ_DIAGNOSTIC_ASSERT(aClonedData.type() ==
ClonedOrErrorMessageData::TClonedMessageData);
StructuredCloneData::CopyFromClonedMessageDataForBackgroundChild(aClonedData);
}
void ServiceWorkerCloneData::SetAsErrorMessageData() {
MOZ_ASSERT(CloneScope() ==
StructuredCloneHolder::StructuredCloneScope::SameProcess);
mIsErrorMessageData = true;
}
bool ServiceWorkerCloneData::IsErrorMessageData() const {
return mIsErrorMessageData;
}
} // namespace dom
} // namespace mozilla