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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*/
/** BEGIN COPYRIGHT BLOCK
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* Copyright (C) 2007 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
#ifndef __BYTE_BUFFER_H
#define __BYTE_BUFFER_H
#ifdef HAVE_CONFIG_H
#ifndef AUTOTOOLS_CONFIG_H
#define AUTOTOOLS_CONFIG_H
/* Eliminate warnings when using Autotools */
#undef PACKAGE_BUGREPORT
#undef PACKAGE_NAME
#undef PACKAGE_STRING
#undef PACKAGE_TARNAME
#undef PACKAGE_VERSION
#include <config.h>
#endif /* AUTOTOOLS_CONFIG_H */
#endif /* HAVE_CONFIG_H */
/**
* ByteBuffer.h 1.000 06/12/2002
*
* A byte buffer class
*
* @author Surendra Rajam
* @version 1.000, 06/12/2002
*/
#define max(a,b) (((a) > (b)) ? (a) : (b))
#define min(a,b) (((a) < (b)) ? (a) : (b))
typedef unsigned char Byte;
class EXPORT_DECL ByteBuffer {
public:
/**
* Constructor
*/
ByteBuffer();
/**
* Destructor
*/
virtual ~ByteBuffer();
public:
/**
* Reads a single byte from the buffer
*
* @param b byte returned
* @return 0 on success
*/
int GetByte(Byte* b);
/**
* Reads a number of bytes as specified by size from the buffer
*
* @param size bytes to read
* @param buf bytes read
* @return 0 on success
*/
int GetBytes(int size, Byte* buf);
/**
* Reads a short value from the buffer
*
* @param s a short value
* @return 0 on success
*/
int GetShort(unsigned short* s);
/**
* Reads a integer value from the buffer
*
* @param i a integer value
* @return 0 on success
*/
int GetInt(unsigned int* i);
/**
* Reads a string of given length from the buffer
*
* @param len length of the string
* @param str string value
* @return 0 on success
*/
int GetString(int len, char* str);
/**
* Writes a single byte to the buffer
*
* @param b byte to set
* @return 0 on success
*/
int SetByte(Byte b);
/**
* Writes a number of bytes as specified by size to the buffer
*
* @param size number of bytes
* @param buf bytes to write
* @return 0 on success
*/
int SetBytes(int size, Byte* buf);
/**
* Writes a short value to the buffer
*
* @param s a short value
* @return 0 on success
*/
int SetShort(unsigned short s);
/**
* Writes an integer value to the buffer
*
* @param i an integer value
* @return 0 on success
*/
int SetInt(unsigned int i);
/**
* Writes a string to the buffer
*
* @param str a string to write
* @return 0 on success
*/
int SetString(char* str);
/**
* Gets the current position in the buffer
*
* @param pos position in the buffer
* @return 0 on success
*/
int GetPosition(unsigned long* pos);
/**
* Sets the pointer to the position specified by pos in the buffer
*
* @param pos position to be set in the buffer
* @return 0 on success
*/
int SetPosition(unsigned long pos);
/**
* Gets total number of bytes in the buffer
*
* @param total total number of bytes
* @return 0 on success
*/
int GetTotalBytes(unsigned long* total);
/**
* Dumps the buffer to the debug log
*
* @param logLevel Lowest debug level for which the log should be dumped
*/
void Dump(int logLevel);
private:
int SetTotalBytes(unsigned long size, unsigned long allocUnit);
int ValidateBuffer(unsigned long increment);
private:
Byte* m_buffer;
Byte* m_bufferEnd;
Byte* m_bufPtr;
Byte* m_maxPtr;
};
#endif // __BYTE_BUFFER_H
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