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