gecko-dev/xpcom/io/nsIOutputStream.h

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1.6 KiB
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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 Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef nsIOutputStream_h___
#define nsIOutputStream_h___
#include "nsIBaseStream.h"
/* 7f13b870-e95f-11d1-beae-00805f8a66dc */
#define NS_IOUTPUTSTREAM_IID \
{ 0x7f13b870, 0xe95f, 0x11d1, \
{0xbe, 0xae, 0x00, 0x80, 0x5f, 0x8a, 0x66, 0xdc} }
/** Abstract byte output stream */
class nsIOutputStream : public nsIBaseStream {
public:
/** Write data into the stream.
* @param aBuf the buffer into which the data is read
* @param aOffset the start offset of the data
* @param aCount the maximum number of bytes to read
* @param aWriteCount out parameter to hold the number of
* bytes written. if an error occurs, the writecount
* is undefined
* @return error status
*/
NS_IMETHOD
Write(const char* aBuf, PRUint32 aOffset, PRUint32 aCount, PRUint32 *aWriteCount) = 0;
};
#endif /* nsOutputStream_h___ */