diff options
Diffstat (limited to 'dom/serviceworkers/ServiceWorkerCloneData.cpp')
-rw-r--r-- | dom/serviceworkers/ServiceWorkerCloneData.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/dom/serviceworkers/ServiceWorkerCloneData.cpp b/dom/serviceworkers/ServiceWorkerCloneData.cpp new file mode 100644 index 0000000000..b74d45386a --- /dev/null +++ b/dom/serviceworkers/ServiceWorkerCloneData.cpp @@ -0,0 +1,80 @@ +/* -*- 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::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::BuildClonedMessageData( + ClonedOrErrorMessageData& aClonedData) { + if (IsErrorMessageData()) { + aClonedData = ErrorMessageData(); + return true; + } + + MOZ_DIAGNOSTIC_ASSERT( + CloneScope() == + StructuredCloneHolder::StructuredCloneScope::DifferentProcess); + + ClonedMessageData messageData; + if (!StructuredCloneData::BuildClonedMessageData(messageData)) { + return false; + } + + aClonedData = std::move(messageData); + + return true; +} + +void ServiceWorkerCloneData::CopyFromClonedMessageData( + const ClonedOrErrorMessageData& aClonedData) { + if (aClonedData.type() == ClonedOrErrorMessageData::TErrorMessageData) { + mIsErrorMessageData = true; + return; + } + + MOZ_DIAGNOSTIC_ASSERT(aClonedData.type() == + ClonedOrErrorMessageData::TClonedMessageData); + + StructuredCloneData::CopyFromClonedMessageData(aClonedData); +} + +void ServiceWorkerCloneData::SetAsErrorMessageData() { + MOZ_ASSERT(CloneScope() == + StructuredCloneHolder::StructuredCloneScope::SameProcess); + + mIsErrorMessageData = true; +} + +bool ServiceWorkerCloneData::IsErrorMessageData() const { + return mIsErrorMessageData; +} + +} // namespace mozilla::dom |