?? pingsocket.cpp
字號(hào):
// PingSocket.cpp : implementation file
//
#include "stdafx.h"
#include "resource.h"
#include "PingSocket.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CPingSocket
CPingSocket::CPingSocket()
{
}
CPingSocket::~CPingSocket()
{
Close();
}
// Do not edit the following lines, which are needed by ClassWizard.
#if 0
BEGIN_MESSAGE_MAP(CPingSocket, CSocket)
//{{AFX_MSG_MAP(CPingSocket)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
#endif // 0
/////////////////////////////////////////////////////////////////////////////
// CPingSocket member functions
void CPingSocket::OnReceive(int nErrorCode)
{
// TODO: Add your specialized code here and/or call the base class
timeval TimeOut = {0L, 0L};
SOCKET hSocket = m_hSocket;
fd_set readfds;
FD_ZERO(&readfds);
FD_SET(hSocket, &readfds);
// Test the socket for read pending
if (!select(0, &readfds, (fd_set *)0, (fd_set *)0, &TimeOut))
return ; // Time out
// Test wether it is a pending for read
if (!FD_ISSET(hSocket, &readfds))
return;
// Read the echo
char chBuf[100];
UINT uPort;
CString rSocketAddress;
ReceiveFrom(chBuf, 100, rSocketAddress, uPort, 0);
CSocket::OnReceive(nErrorCode);
}
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