mirror of
https://github.com/Alfresco/alfresco-community-repo.git
synced 2025-06-16 17:55:15 +00:00
4e2300f095
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5186 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
159 lines
4.3 KiB
C++
159 lines
4.3 KiB
C++
/*
|
|
* Copyright (C) 2005-2007 Alfresco Software Limited.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
|
|
* This program 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 General Public License for more details.
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
* As a special exception to the terms and conditions of version 2.0 of
|
|
* the GPL, you may redistribute this Program in connection with Free/Libre
|
|
* and Open Source Software ("FLOSS") applications as described in Alfresco's
|
|
* FLOSS exception. You should have recieved a copy of the text describing
|
|
* the FLOSS exception, and it is also available here:
|
|
* http://www.alfresco.com/legal/licensing"
|
|
*/
|
|
|
|
#ifndef _DataBuffer_H
|
|
#define _DataBuffer_H
|
|
|
|
// Includes
|
|
|
|
#include "util\DataPacker.h"
|
|
|
|
// Classes defined in this header file
|
|
|
|
namespace Alfresco {
|
|
class DataBuffer;
|
|
typedef std::auto_ptr<DataBuffer> PTR_DataBuffer;
|
|
}
|
|
|
|
// Constants
|
|
|
|
namespace Alfresco {
|
|
|
|
// Default data buffer size
|
|
|
|
#define DataBufferDefaultSize 256
|
|
}
|
|
|
|
/**
|
|
* Data Buffer Class
|
|
*
|
|
* Dynamic buffer for getting/setting data blocks.
|
|
*/
|
|
class Alfresco::DataBuffer {
|
|
public:
|
|
// Class constructors
|
|
|
|
DataBuffer( unsigned int siz = DataBufferDefaultSize);
|
|
DataBuffer( BUFPTR buf, BUFPOS off, BUFLEN len);
|
|
|
|
// Class destructor
|
|
|
|
~DataBuffer();
|
|
|
|
// Getter methods
|
|
|
|
inline BUFPTR getBuffer( void) { return m_buf; }
|
|
|
|
BUFLEN getLength( void) const;
|
|
unsigned int getLengthInWords( void) const;
|
|
BUFLEN getAvailableLength( void) const;
|
|
inline BUFLEN getBufferLength(void) const { return m_buflen; }
|
|
|
|
inline unsigned int getDisplacement( void) const { return m_pos - m_offset; }
|
|
inline BUFPOS getOffset( void) { return m_offset; }
|
|
inline BUFPOS getPosition( void) { return m_pos; }
|
|
|
|
// Get data items from the buffer
|
|
|
|
unsigned char getByte( void);
|
|
unsigned int getShort( void);
|
|
unsigned int getInt( void);
|
|
LONG64 getLong( void);
|
|
String getString( bool uni = true);
|
|
String getString( unsigned int maxLen, bool uni = true);
|
|
|
|
unsigned int getShortAt( unsigned int idx);
|
|
unsigned int getIntAt( unsigned int idx);
|
|
LONG64 getLongAt( unsigned int idx);
|
|
|
|
// Put data items into the buffer
|
|
|
|
void putByte( unsigned char byt);
|
|
void putShort( unsigned int sval);
|
|
void putInt( unsigned int ival);
|
|
void putLong( LONG64 lval);
|
|
|
|
void putShortAt( unsigned int idx, unsigned int sval);
|
|
void putIntAt( unsigned int idx, unsigned int ival);
|
|
void putLongAt( unsigned int idx, LONG64 lval);
|
|
|
|
void putString( const String& str, bool uni = true, bool nulTerm = true);
|
|
void putFixedString( const String& str, unsigned int len);
|
|
BUFPOS putStringAt( const String& str, BUFPOS pos, bool uni = true, bool nulTerm = true);
|
|
BUFPOS putFixedStringAt( const String& str, unsigned int len, BUFPOS pos);
|
|
|
|
void putStringPointer( unsigned int off);
|
|
void putZeros( unsigned int cnt);
|
|
|
|
// Align the buffer position
|
|
|
|
void wordAlign( void);
|
|
void longwordAlign( void);
|
|
|
|
// Append a raw data block to the buffer
|
|
|
|
void appendData( BUFPTR buf, BUFPOS off, BUFLEN len);
|
|
|
|
// Copy the data to the user buffer and update the read position
|
|
|
|
unsigned int copyData( BUFPTR buf, BUFPOS pos, unsigned int cnt);
|
|
|
|
// Skip data items in the buffer
|
|
|
|
void skipBytes( unsigned int len);
|
|
|
|
// Setter methods
|
|
|
|
inline void setPosition( BUFPOS pos) { m_pos = pos; }
|
|
void setEndOfBuffer( void);
|
|
void setLength( BUFLEN len);
|
|
|
|
private:
|
|
// Extend the buffer
|
|
|
|
void extendBuffer( BUFLEN ext);
|
|
void extendBuffer( void);
|
|
|
|
protected:
|
|
// Instance variables
|
|
//
|
|
// Data buffer
|
|
|
|
BUFPTR m_buf;
|
|
unsigned int m_buflen;
|
|
|
|
// Flag to indicate if the buffer is owned by this object
|
|
|
|
bool m_owner;
|
|
|
|
// Buffer positions/offsets
|
|
|
|
BUFPOS m_pos;
|
|
BUFPOS m_endpos;
|
|
BUFPOS m_offset;
|
|
};
|
|
|
|
#endif
|