mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-02 07:05:24 +00:00
83 lines
3.1 KiB
C++
Executable File
83 lines
3.1 KiB
C++
Executable File
/* -*- 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___
|
|
|
|
#ifndef nsBufferHandle_h___
|
|
#include "nsBufferHandle.h"
|
|
#endif
|
|
|
|
/**
|
|
* This class is 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.
|
|
*
|
|
* Normal string clients must _never_ call routines from this interface.
|
|
*/
|
|
class NS_COM nsPrivateSharableString
|
|
{
|
|
public:
|
|
typedef PRUnichar char_type;
|
|
|
|
public:
|
|
virtual ~nsPrivateSharableString() {}
|
|
|
|
virtual PRUint32 GetImplementationFlags() const;
|
|
virtual const nsBufferHandle<char_type>* GetFlatBufferHandle() const;
|
|
virtual const nsBufferHandle<char_type>* GetBufferHandle() const;
|
|
virtual const nsSharedBufferHandle<char_type>* GetSharedBufferHandle() const;
|
|
|
|
/**
|
|
* |GetBufferHandle()| will return either |0|, or a reasonable pointer.
|
|
* The meaning of |0| is that the string points to a non-contiguous or else empty representation.
|
|
* Otherwise |GetBufferHandle()| returns a handle that points to the single contiguous hunk of characters
|
|
* that make up this string.
|
|
*/
|
|
};
|
|
|
|
class NS_COM nsPrivateSharableCString
|
|
{
|
|
public:
|
|
typedef char char_type;
|
|
|
|
public:
|
|
virtual ~nsPrivateSharableCString() {}
|
|
|
|
virtual PRUint32 GetImplementationFlags() const;
|
|
virtual const nsBufferHandle<char_type>* GetFlatBufferHandle() const;
|
|
virtual const nsBufferHandle<char_type>* GetBufferHandle() const;
|
|
virtual const nsSharedBufferHandle<char_type>* GetSharedBufferHandle() const;
|
|
|
|
/**
|
|
* |GetBufferHandle()| will return either |0|, or a reasonable pointer.
|
|
* The meaning of |0| is that the string points to a non-contiguous or else empty representation.
|
|
* Otherwise |GetBufferHandle()| returns a handle that points to the single contiguous hunk of characters
|
|
* that make up this string.
|
|
*/
|
|
};
|
|
|
|
#endif // !defined(nsPrivateSharableString_h___)
|