зеркало из https://github.com/mozilla/gecko-dev.git
102 строки
2.3 KiB
C++
102 строки
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_ipc_StructuredCloneData_h
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#define mozilla_dom_ipc_StructuredCloneData_h
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#include "mozilla/dom/StructuredCloneHolder.h"
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namespace IPC {
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class Message;
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}
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namespace mozilla {
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namespace dom {
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namespace ipc {
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class StructuredCloneData : public StructuredCloneHolder
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{
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public:
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StructuredCloneData()
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: StructuredCloneHolder(StructuredCloneHolder::CloningSupported,
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StructuredCloneHolder::TransferringNotSupported,
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StructuredCloneHolder::DifferentProcess)
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, mData(nullptr)
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, mDataLength(0)
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, mDataOwned(eNone)
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{}
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StructuredCloneData(const StructuredCloneData&) = delete;
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~StructuredCloneData()
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{
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if (mDataOwned == eJSAllocated) {
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js_free(mData);
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}
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}
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StructuredCloneData&
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operator=(const StructuredCloneData& aOther) = delete;
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const nsTArray<nsRefPtr<BlobImpl>>& BlobImpls() const
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{
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return mBlobImplArray;
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}
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nsTArray<nsRefPtr<BlobImpl>>& BlobImpls()
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{
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return mBlobImplArray;
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}
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bool Copy(const StructuredCloneData& aData);
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void Read(JSContext* aCx,
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JS::MutableHandle<JS::Value> aValue,
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ErrorResult &aRv);
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void Write(JSContext* aCx,
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JS::Handle<JS::Value> aValue,
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ErrorResult &aRv);
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void UseExternalData(uint64_t* aData, size_t aDataLength)
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{
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MOZ_ASSERT(!mData);
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mData = aData;
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mDataLength = aDataLength;
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MOZ_ASSERT(mDataOwned == eNone);
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}
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bool CopyExternalData(const void* aData, size_t aDataLength);
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uint64_t* Data() const
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{
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return mData;
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}
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size_t DataLength() const
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{
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return mDataLength;
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}
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// For IPC serialization
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void WriteIPCParams(IPC::Message* aMessage) const;
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bool ReadIPCParams(const IPC::Message* aMessage, void** aIter);
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private:
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uint64_t* mData;
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size_t mDataLength;
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enum {
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eNone,
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eJSAllocated,
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} mDataOwned;
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};
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} // namespace ipc
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_ipc_StructuredCloneData_h
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