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// ZipAutoBuffer.cpp: implementation of the CZipAutoBuffer class.
// Part of the ZipArchive library
//
// Copyright (C) 2000 - 2001 Tadeusz Dracz.
// 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.
//
// For the licensing details see the file License.txt
////////////////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "ZipAutoBuffer.h"
#include <memory.h>
// #ifdef _DEBUG
// #undef THIS_FILE
// static char THIS_FILE[]=__FILE__;
// #define new DEBUG_NEW
// #endif
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CZipAutoBuffer::CZipAutoBuffer()
{
m_iSize = 0;
m_pBuffer = NULL;
}
CZipAutoBuffer::CZipAutoBuffer(DWORD iSize, bool bZeroMemory)
{
m_iSize = 0;
m_pBuffer = NULL;
Allocate(iSize, bZeroMemory);
}
CZipAutoBuffer::~CZipAutoBuffer()
{
Release();
}
void CZipAutoBuffer::Release()
{
if (m_pBuffer)
{
delete [] m_pBuffer;
m_iSize = 0;
m_pBuffer = NULL;
}
}
char* CZipAutoBuffer::Allocate(DWORD iSize, bool bZeroMemory)
{
if (iSize != m_iSize)
Release();
else
{
if (bZeroMemory)
memset(m_pBuffer, 0, iSize); // zerowanie bufora
return m_pBuffer;
}
if (iSize > 0)
{
m_pBuffer = new char [iSize];
if (bZeroMemory)
memset(m_pBuffer, 0, iSize); // zerowanie bufora
m_iSize = iSize;
}
else
m_pBuffer = NULL;
return m_pBuffer;
}
CZipAutoBuffer::CZipAutoBuffer(const CZipAutoBuffer& buffer)
{
m_pBuffer = NULL;
m_iSize = 0;
if (buffer.m_pBuffer)
{
Allocate(buffer.m_iSize);
memcpy(m_pBuffer, buffer.m_pBuffer, buffer.m_iSize);
}
}
CZipAutoBuffer& CZipAutoBuffer::operator=(const CZipAutoBuffer& buffer)
{
if (this == &buffer)
return *this;
Release();
if (buffer.m_pBuffer)
{
Allocate(buffer.m_iSize);
memcpy(m_pBuffer, buffer.m_pBuffer, buffer.m_iSize);
}
return *this;
}
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