命名管道（续）

服务端

void CPipetest1Dlg::OnOK() 

{

	// TODO: Add extra validation here

	HANDLE hSvrHndle=CreateNamedPipe("\\\\.\\pipe\\pipetest\\",

		PIPE_ACCESS_DUPLEX,

		PIPE_TYPE_MESSAGE | 

		PIPE_READMODE_MESSAGE |   // message-read mode 

		PIPE_WAIT,                // blocking mode 

		PIPE_UNLIMITED_INSTANCES,

		BUFSIZE,

		BUFSIZE,

		NMPWAIT_WAIT_FOREVER,

		NULL);

	if( INVALID_HANDLE_VALUE == hSvrHndle)

    {

        AfxMessageBox("Error create/open pipe");

		return;

    }

	while(1)

	{	

		if(ConnectNamedPipe(hSvrHndle,NULL)){

			printf("connecting pipe succeed\n");

			break;

		}

	}

	DWORD bytesread=-1;

	char rBuf[512],shareBuf[512];

	BOOL flag=TRUE;

	while(flag){

		BOOL reval=ReadFile(hSvrHndle,

			rBuf,

			sizeof(rBuf),

			&bytesread,

			NULL);

		if(reval){

			if(bytesread>0){

				memcpy(shareBuf,rBuf,sizeof(shareBuf));

				CString str;

				str.Format("%s",shareBuf);

				UpdateData(TRUE);

				m_data=str;

				UpdateData(FALSE);

				strcpy(rBuf,"Received");

				WriteFile(hSvrHndle,rBuf,sizeof(rBuf),&bytesread,NULL);

			}

		}

		else

			flag=FALSE;

	}

	CloseHandle(hSvrHndle);	

	//CDialog::OnOK();

}

客户端

 
void CPipetest2Dlg::OnOK() 

{

	// TODO: Add extra validation here

	UpdateData(TRUE);

	if (m_clientdata=="")

	{

		AfxMessageBox("content blank!");

		return;

	}

	UpdateData(FALSE);

	HANDLE hClient = CreateFile("\\\\.\\pipe\\pipetest\\",

		GENERIC_WRITE |GENERIC_READ,

		0,

		NULL,

		OPEN_EXISTING,

		FILE_ATTRIBUTE_NORMAL,

		NULL);

    if(hClient == INVALID_HANDLE_VALUE)

    {

        AfxMessageBox("Error open/connect pipe");

    }

	DWORD bytesread=-1;

	char rBuf[512],shareBuf[512];

    LPTSTR lpsz =(LPTSTR)(LPCTSTR)m_clientdata;

	strcpy(rBuf, lpsz);

	BOOL reval=WriteFile(hClient,rBuf,sizeof(rBuf),&bytesread,NULL);

	if(!reval){

		AfxMessageBox("Write into pipe error!");

	}

	reval=ReadFile(hClient,

		rBuf,

		sizeof(rBuf),

		&bytesread,

		NULL);

	if(reval){

		if(bytesread>0){

			memcpy(shareBuf,rBuf,sizeof(shareBuf));

			CString str;

			str.Format("%s",shareBuf);

			UpdateData(TRUE);

			m_clientdata=str;

			UpdateData(FALSE);

		}

	}

	CloseHandle(hClient);	

	//CDialog::OnOK();

}