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74 lines
1.4 KiB
C
74 lines
1.4 KiB
C
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/* -*- 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_IdType_h
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#define mozilla_dom_IdType_h
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#include "ipc/IPCMessageUtils.h"
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namespace IPC {
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template<typename T> struct ParamTraits;
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} // namespace IPC
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namespace mozilla {
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namespace dom {
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class ContentParent;
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class TabParent;
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template<typename T>
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class IdType
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{
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friend struct IPC::ParamTraits<IdType<T>>;
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public:
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IdType() : mId(0) {}
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explicit IdType(uint64_t aId) : mId(aId) {}
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operator uint64_t() const { return mId; }
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IdType& operator=(uint64_t aId)
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{
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mId = aId;
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return *this;
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}
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bool operator<(const IdType& rhs)
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{
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return mId < rhs.mId;
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}
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private:
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uint64_t mId;
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};
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typedef IdType<TabParent> TabId;
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typedef IdType<ContentParent> ContentParentId;
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} // namespace dom
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} // namespace mozilla
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namespace IPC {
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template<typename T>
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struct ParamTraits<mozilla::dom::IdType<T>>
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{
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typedef mozilla::dom::IdType<T> paramType;
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static void Write(Message* aMsg, const paramType& aParam)
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{
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WriteParam(aMsg, aParam.mId);
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}
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static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
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{
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return ReadParam(aMsg, aIter, &aResult->mId);
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}
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};
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} // namespace IPC
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#endif
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