pjs/xpcom/ds/nsPrivateSharableString.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla strings.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 2000 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Scott Collins <scc@mozilla.org> (original author)
*
*/
#ifndef nsPrivateSharableString_h___
#define nsPrivateSharableString_h___
#include "nsBufferHandle.h"
/**
* This class is (will be) part of the machinery that makes
* most string implementations in this family share their underlying buffers
* when convenient. It is _not_ part of the abstract string interface,
* though other machinery interested in sharing buffers will know about it.
*/
template <class CharT>
class nsPrivateSharableString
{
public:
virtual const nsBufferHandle<CharT>* GetBufferHandle() const;
virtual const nsSharedBufferHandle<CharT>* GetSharedBufferHandle() const;
};
template <class CharT>
nsBufferHandle<CharT>*
nsPrivateSharableString<CharT>::GetBufferHandle() const
{
return GetSharedBufferHandle();
}
template <class CharT>
nsBufferHandle<CharT>*
nsPrivateSharableString<CharT>::GetSharedBufferHandle() const
{
return 0;
}
#endif // !defined(nsPrivateSharableString_h___)