dsock.cpp

RS232串口与SOCKET通信转换程序

// DSock.cpp : implementation file
//

#include "stdafx.h"
#include "CtoE.h"
#include "DSock.h"
#include "comm.h"
#include "backform.h"
#include "mainfrm.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CDSock

CDSock::CDSock()
{
	char appfile[100];
	GetCurrentDirectory(100, appfile);
	strcat(appfile, "\\app.ini");

	port = GetPrivateProfileInt("LOCAL", "port", -1, appfile);
	target_port = GetPrivateProfileInt("TARGET", "port", -1, appfile);
	char temp[20];
	GetPrivateProfileString("TARGET", "ip", "", temp, 20, appfile);
	target_ip = temp;
}

CDSock::~CDSock()
{
	Close();
}


// Do not edit the following lines, which are needed by ClassWizard.
#if 0
BEGIN_MESSAGE_MAP(CDSock, CSocket)
	//{{AFX_MSG_MAP(CDSock)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
#endif	// 0

/////////////////////////////////////////////////////////////////////////////
// CDSock member functions

int CDSock::InitSocket()
{
	int err = Create(port, SOCK_DGRAM);
	if(err == FALSE)
	{
		err = GetLastError();
		return 0;
	}
	return 1;
}

void CDSock::OnReceive(int nErrorCode) 
{
	// TODO: Add your specialized code here and/or call the base class
	char buf[300];
	unsigned int pp = target_port;
	memset(buf, 0, 300);
	int err = ReceiveFrom(buf, 300, target_ip, pp);

	CMainFrame *p = (CMainFrame *)AfxGetApp()->m_pMainWnd;
	p->com->SendString(buf, err);
	TRACE("SOCK: %d %x\n", err, buf[0]);
		CBackForm *f = (CBackForm *)(p->GetActiveFrame()->GetActiveView());
		f->m_recvstr = buf;
		f->UpdateData(FALSE);

	CSocket::OnReceive(nErrorCode);
}

int CDSock::SendString(char *buf, int len)
{
	int err = SendTo(buf, len, target_port, target_ip);
	TRACE("err= %d\n",err);
	return err;
}