網路訊息的封裝

// netmsg.h: inte***ce for the cnetmsg class.

////

#if !defined(afx_netmsg_h__b5470113_4819_4165_80af_f23918be2d76__included_)

#define afx_netmsg_h__b5470113_4819_4165_80af_f23918be2d76__included_

#if _msc_ver > 1000

#pragma once

#endif // _msc_ver > 1000

class cnetmsg 

const unsigned short getsize(void)

char *getbuf(void)

public:

virtual bool create(const char* pbugmsg, dword dwmsgsize);

virtual bool isvalid(void);

virtual void send(void);

virtual void process(void *pinfo);

public:

static int getmaxsize(void)

static unsigned short gettype(const char* pbugmsg,dword dwmsgsize);

static unsigned short getsize(const char* pbugmsg,dword dwmsgsize);

static cnetmsg* createmsg(const char *pbugmsg, dword dwmsgsize);

protected:

union;

};};

//extern cnetwork g_objnetwork;

#endif // !defined(afx_netmsg_h__b5470113_4819_4165_80af_f23918be2d76__included_)\

// netmsg.cpp: implementation of the cnetmsg class.

////

#include "stdafx.h"

#include "test.h"

#include "netmsg.h"

#ifdef _debug

#undef this_file

static char this_file=__file__;

#define new debug_new

#endif

//// construction/destruction

//cnetmsg::cnetmsg()

cnetmsg::~cnetmsg()

void cnetmsg::reset()

bool cnetmsg::isvalid(void)

return true;

}bool cnetmsg::create(const char* pbugmsg, dword dwmsgsize)

if ( 0 == gettype(pbugmsg, dwmsgsize))

memecpy(this->m_bugmsg, pbugmsg, dwmsgsize);

return true;

}void cnetmsg::process(void *pinfo)

unsigned short* punshort = (unsigned short*)pbugmsg;

return punshort[1];

}unsigned short cnetmsg::getsize(const char* pbugmsg,dword dwmsgsize)

return punshort[0] + 8;

cnetmsg* cnetmsg::createmsg(const char *pbugmsg, dword dwmsgsize)

int nsize = cnetmsg::getsize(pbugmsg, dwmsgsize);

if ((int)dwmsgsize != nsize - 8)

cnetmsg *pmsg = null;

int type = cnetmsg::gettype(pbugmsg,dwmsgsize);

switch(type)

if (!pmsg)

return null;

if (!pmsg->create(pbugmsg, dwmsgsize))

return pmsg;

}

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