datasocket.cpp

1)用户界面模块负责响应用户的键盘鼠标输入设置服务器的各个参数

// DataSocket.cpp : implementation file
//

#include "stdafx.h"
#include "DataSocket.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDataSocket

CDataSocket::CDataSocket(CControlSocket* pControlSocket)
{
	m_isConnected=false;
	m_pClientDlg=0;
	m_pControlSocket=pControlSocket;
}

CDataSocket::~CDataSocket()
{
}


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

/////////////////////////////////////////////////////////////////////////////
// CDataSocket member functions

void CDataSocket::OnAccept(int nErrorCode) 
{
	CSocket tmpSocket;
	Accept(tmpSocket);

	SOCKET s=tmpSocket.Detach();
	Close();
	Attach(s);
	m_isConnected=true;
	CSocket::OnAccept(nErrorCode);
}

void CDataSocket::OnReceive(int nErrorCode) 
{
	if(m_pClientDlg==0)	
		m_pClientDlg=(CFTPClientDlg *)(AfxGetApp()->m_pMainWnd);

	if(m_pClientDlg->m_state==STATE_DOWNLOAD)
	{
		int nRead=m_pClientDlg->SaveToFile(this);
		if(nRead==0)
		{
			m_pClientDlg->m_state=STATE_LIST;
		}
		return;
	}
	TCHAR buf[4096];
	int nRead=CSocket::Receive(buf,4096);
	switch(nRead)
	{
	case 0:	//receive finished;
		Close();
		m_pClientDlg->AddActivity("Data Socket Receive finished.");
		break;
	case SOCKET_ERROR:
		if(GetLastError()==WSAEWOULDBLOCK)
		{
			Sleep(0);
		}else
		{
			Close();
			m_pClientDlg->AddActivity("Data Socket Receive Errored.");
		}
		break;
	default:
		buf[nRead]=0;
		receiveBuf+=CString(buf);
		int index;
		while((index=receiveBuf.Find("\r\n"))!=-1)
		{
			m_pControlSocket->AddServerReply(receiveBuf.Left(index));
			receiveBuf=receiveBuf.Mid(index+2);
		}

//		m_pClientDlg->ProcessCommand();
		break;
	}
	
	CSocket::OnReceive(nErrorCode);
}