Use of free SocketPro package for creating super client and server applications

// This is a part of the SocketPro package.
// Copyright (C) 2000-2002 UDAParts 
// All rights reserved.
//
// This source code is only intended as a supplement to the
// SocketPro Classes Reference and related
// electronic documentation provided with the package.
// See these sources for detailed information regarding this
// UDAParts product.

// Please don't disclose any source code of the software to any person or entity,
//
// Please don't decompile, disassemble, or reverse engineer any object code of 
// any portion of the software.
//  
// Copyright (c) 2002 by Yuancai (Charlie) Ye
// yekerui@yahoo.com


#ifndef	___SOCKPRO__UTIL_HEADER_FILE___H___
#define ___SOCKPRO__UTIL_HEADER_FILE___H___

class CAutoLock
{
public:
	CAutoLock(CRITICAL_SECTION *pCriticalSection)
	{
		m_pCriticalSection=pCriticalSection;
		if(m_pCriticalSection)
		{
			::EnterCriticalSection(m_pCriticalSection);
		}
	}
	virtual ~CAutoLock()
	{
		if(m_pCriticalSection)
			::LeaveCriticalSection(m_pCriticalSection);
	}
private:
	CRITICAL_SECTION	*m_pCriticalSection;
};

class CPacking
{
public:
	CPacking()
	{
		m_nLen=0;
		m_pBuffer=NULL;
	}
	
	virtual ~CPacking()
	{
		if(m_pBuffer)
		{
			free(m_pBuffer);
		}
	}
	
	void Empty()
	{
		if(m_pBuffer)
		{
			free(m_pBuffer);
			m_pBuffer=NULL;
		}
		m_nLen=0;
	}
	void Pack(const void* pData, unsigned long nBufferLen)
	{
		m_pBuffer = realloc(m_pBuffer,  m_nLen+nBufferLen);
		memcpy((BYTE*)m_pBuffer+m_nLen, pData, nBufferLen);
		m_nLen += nBufferLen;
	}
	
	void Insert(unsigned long nPos, const void* pData, unsigned long nBufferLen)
	{
		if(!pData || nBufferLen==0)
			return;
		if(nPos>m_nLen)
			nPos=m_nLen;
		void *pBuffer=malloc(nBufferLen+m_nLen);
		if(nPos)
			memcpy(pBuffer, m_pBuffer, nPos);
		memcpy((BYTE*)pBuffer + nPos, pData, nBufferLen);
		memcpy((BYTE*)pBuffer + nPos + nBufferLen, (BYTE*)m_pBuffer + nPos, m_nLen-nPos);
		free(m_pBuffer);
		m_pBuffer = pBuffer;
		m_nLen += nBufferLen;
	}

public:
	unsigned long	m_nLen;
	void			*m_pBuffer;
};

#endif

// This is a part of the SocketPro package.
// Copyright (C) 2000-2002 UDAParts 
// All rights reserved.
//
// This source code is only intended as a supplement to the
// SocketPro Classes Reference and related
// electronic documentation provided with the package.
// See these sources for detailed information regarding this
// UDAParts product.

// Please don't disclose any source code of the software to any person or entity,
//
// Please don't decompile, disassemble, or reverse engineer any object code of 
// any portion of the software.
//  
// Copyright (c) 2002 by Yuancai (Charlie) Ye
// yekerui@yahoo.com