C / C++ / MFC

<code>struct hostent *hp;



     unsigned int addr = inet_addr(m_strHost);

 hp = gethostbyaddr((char *)&addr,4,AF_INET);

 if (hp == NULL )
 {
 printf("\n Failed: %d",WSAGetLastError());
 }

 else
 {
 printf( "%s\n\n", hp->h_name );
 }</code>

struct ScheduledDevice<br />
{<br />
	CComBSTR RefID;<br />
	CComBSTR Name;<br />
	DATE StartTime;<br />
	DATE EndTime;<br />
	int Status;<br />
	long Command;<br />
};<br />
<br />
typedef map<BSTR, ScheduledDevice> SCHEDULELIST;<br />
SCHEDULELIST m_Schedule;<br />
<br />
HRESULT CMonitorDeviceThread::Add(BSTR DeviceName, DATE StartTime, DATE EndsTime, BSTR RefID)<br />
{<br />
	ScheduledDevice obj;<br />
<br />
	obj.Name = DeviceName;<br />
	obj.StartTime = StartTime;<br />
	obj.EndTime = EndsTime;<br />
	obj.RefID = RefID;<br />
	obj.Status = bookOpenStatus;<br />
<br />
	EnterCriticalSection(&cs);		<br />
		m_Schedule[obj.RefID] = obj;<br />
	LeaveCriticalSection(&cs);<br />
<br />
	return S_OK;<br />
}<br />
<br />
HRESULT CMonitorDeviceThread::Cancel(BSTR RefID)<br />
{	<br />
	SCHEDULELIST::iterator m_Iterator;<br />
<br />
	EnterCriticalSection(&cs);	<br />
		if( ( m_Iterator = m_Schedule.find( RefID ) ) != m_Schedule.end() ) {<br />
<br />
			if ( (*m_Iterator).second.Status == bookExecuteStatus )<br />
				return E_FAIL; //command already executed; cannot be remove;<br />
<br />
			m_Schedule.erase( m_Iterator ); <br />
<br />
		} else<br />
			return E_INVALIDARG; //invalid argument error<br />
	LeaveCriticalSection(&cs);<br />
<br />
	return S_OK;<br />
}

SCHEDULELIST::iterator m_Iterator;<br />
<br />
EnterCriticalSection(&cs);<br />
	<br />
	//START: loop trough al the schedule command/record<br />
	for ( m_Iterator = m_Schedule.begin(); m_Iterator != m_Schedule.end(); m_Iterator++ )<br />
	{	<br />
			<br />
			SYSTEMTIME dtStartTime, dtEndTime, stCurDate;<br />
				<br />
			VariantTimeToSystemTime( (*m_Iterator).second.StartTime, &dtStartTime );<br />
			VariantTimeToSystemTime( (*m_Iterator).second.EndTime, &dtEndTime );<br />
			GetLocalTime(&stCurDate);<br />
<br />
			CHighTime bookStartTime( dtStartTime ); <br />
			CHighTime bookEndTime( dtEndTime ); <br />
			CHighTime curTime( stCurDate ); <br />
<br />
			// start<br />
			CHighTimeSpan sDiffStartTime = bookStartTime - curTime;<br />
			//end<br />
			CHighTimeSpan sDiffEndTime = bookEndTime - curTime;<br />
			<br />
			// get difference in minute for start<br />
			long diffStart = sDiffStartTime.GetTotalMinutes(); <br />
			// get difference in minute for end<br />
			long diffEnd = sDiffEndTime.GetTotalMinutes(); <br />
<br />
			//<br />
			//START time<br />
			//<br />
			//if time = current time or we late 5 minute; status is open<br />
			if ( ( diffStart == 0 || ( diffStart >= -5 && diffStart <= -1 ) ) && <br />
<br />
(*m_Iterator).second.Status == bookOpenStatus ) {<br />
							<br />
				//mark as executed; update the status at MAP<br />
				(*m_Iterator).second.Status = bookExecuteStatus;<br />
			<br />
			}<br />
<br />
			//<br />
<br />
			//<br />
			//END time<br />
			//<br />
			//if time = current time or we late 10 minute; status is open<br />
			if ( ( diffEnd == 0 || ( diffEnd >= -10 && diffEnd <= -1 ) ) && <br />
<br />
(*m_Iterator).second.Status == bookExecuteStatus ) {<br />
						<br />
				//erase abselete records<br />
				//MARK; error occures here     <br />
				<big>m_Schedule.erase( m_Iterator );</big> <br />
<br />
			}<br />
<br />
			//<br />
			 <br />
	}//for ( m_Iterator = m_Schedule.begin(); m_Iterator != m_Schedule.end(); m_Iterator++ )<br />
	//END: loop trough al the schedule command/record<br />
<br />
	LeaveCriticalSection(&cs);