зеркало из https://github.com/mozilla/gecko-dev.git
55 строки
1.9 KiB
C++
55 строки
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsIInputStream_h___
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#define nsIInputStream_h___
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#include "nsIBaseStream.h"
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#define NS_IINPUTSTREAM_IID \
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{ 0x022396f0, 0x93b5, 0x11d1, \
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{0x89, 0x5b, 0x00, 0x60, 0x08, 0x91, 0x1b, 0x81} }
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/** Abstract byte input stream */
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class nsIInputStream : public nsIBaseStream {
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public:
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/** Return the number of bytes in the stream
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* @param aLength out parameter to hold the length
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* of the stream. if an error occurs, the length
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* will be undefined
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* @return error status
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*/
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NS_IMETHOD
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GetLength(PRInt32 *aLength) = 0;
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/** Read data from the stream.
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* @param aErrorCode the error code if an error occurs
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* @param aBuf the buffer into which the data is read
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* @param aOffset the start offset of the data
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* @param aCount the maximum number of bytes to read
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* @param aReadCount out parameter to hold the number of
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* bytes read, eof if 0. if an error occurs, the
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* read count will be undefined
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* @return error status
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*/
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NS_IMETHOD
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Read(char* aBuf, PRInt32 aOffset, PRInt32 aCount, PRInt32 *aReadCount) = 0;
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};
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#endif /* nsInputStream_h___ */
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