*** NOT PART OF THE BUILD PROCESS

bug # 163739 - XPI Packager
adding the xpi packager to the mozilla tree.  this is a windows only app used to build the xpi packager
for building self installing xpi files.


git-svn-id: svn://10.0.0.236/trunk@134725 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/modules/plugin/tools/XPIPackager/ZipAutoBuffer.cpp

@@ -0,0 +1,104 @@
+// 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;
+}