Visual C++通信编程实例

				         if (m_nSendOut != m_nSendln)
				          {
				                 memcpy(pparam, &m_SmSend[m_nSendOut], sizeof(SM_PARAM》;
				m_nSendOut++;
				                    if (m_nSendOut >= MAX_SM_SEND)
				m_nSendOut = 0;
				                fSuccess = TRUE;
				          }
				                       LeaveCriticalSection(&m_c sS end);
				       return fSuccess;
				void CSmsTraffic::PutRecvMessage(SM_PARAM* pparam,int nCount)
				{
				                               EnterCritic alSection(&m_csRecv);
				             for (int i = 0; i < nCount; i++)
				            {
				                                    memcpy(&m_SmRecv [m_nRecvln],  pparam,  sizeof(SM_PARAM》;
				m_nRecvln++;
				          ,        if (m_nRecvln >= MAX_SM_RECV)
				m_nRecvln = 0;
				 pparam++,
				           }
				                        LeaveCriticalSection(&m_csRecv) ;
				 }
				    ／／从接收队列中取一条短消息
				    BOOL CSmsTraffic::GetRecvMessage(SM_PARAM* pparam)
				    {
				    BOOL fSuccess= FALSE;
				    EnterCriticalSection(&m_csRecv);
				    if (m_nRecvOut!=m_nRecvln)
				    {
				    memcpy(pparam, &m_SmRecv[m_nRecvOut], sizeof(SM_PARAM》;
				    m_nRecvOut++;
				    if (m_nRecvOut>=MAX_SM_RECV)
				    m_nRecvOut=0；
				    f'Success= TRUE;
				    )
				    LeaveCriticalSection(&m_csRecv);
				    return fSuccess;
				    }
				    最后，编辑短消息进程函数，由于该函数内容较长，就不在这里具体陈述函数体内容，
				读者可以参看随书光盘相应程序中的函数UINT CSmsTraffic::SmsThread(LPVOID IParam)。
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