[Source] Timep.c

1. 운영체제 종류 확인

2. Argument 패스용 함수 _SkipArg

3. 실행시간 측정 (GetSystemTime)

#include 	
#include 

LPTSTR _SkipArg(LPCTSTR targv)
{
	LPTSTR p = (LPTSTR)targv;
	while( *p != '\0' && *p != '\t' && *p != 0x20 ) p++;
	while( *p != '\0' && ( *p == '\t' || *p == 0x20 ) ) p++;
	return p;
}


int _tmain(int argc, LPTSTR argv[]){

	STARTUPINFO StartUp;
	PROCESS_INFORMATION ProcInfo;
	union{
		LONGLONG li;
		FILETIME ft;
	} CreateTime, ExitTime, ElapsedTime;
	FILETIME KernelTime, UserTime;
	SYSTEMTIME ElTiSys, KeTiSys, UsTiSys, StartTimeSys, ExitTimeSys;
	LPTSTR targv = _SkipArg(GetCommandLine());

	OSVERSIONINFO OSVer;
	BOOL IsNT;
	HANDLE hProc;

	OSVer.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
	GetVersionEx(&OSVer);
	
	IsNT = (OSVer.dwPlatformId == VER_PLATFORM_WIN32_NT);

	GetStartupInfo(&StartUp);
	GetSystemTime(&StartTimeSys);

	CreateProcess(NULL, targv, NULL, NULL, TRUE, 
		NORMAL_PRIORITY_CLASS, NULL, NULL, &StartUp, &ProcInfo);

	DuplicateHandle(GetCurrentProcess(), ProcInfo.hProcess,
		GetCurrentProcess(), &hProc, PROCESS_QUERY_INFORMATION | SYNCHRONIZE, FALSE, 0);

	WaitForSingleObject(hProc, INFINITE);

	GetSystemTime(&ExitTimeSys);

	if(IsNT){
	
		GetProcessTimes(hProc, &CreateTime.ft, &ExitTime.ft, &KernelTime, &UserTime);
		ElapsedTime.li = ExitTime.li - CreateTime.li;

		FileTimeToSystemTime(&ElapsedTime.ft, &ElTiSys);
		FileTimeToSystemTime(&CreateTime.ft, &KeTiSys);
		FileTimeToSystemTime(&UserTime, &UsTiSys);

		_tprintf( _T("Real Time : %02d:%02d:%02d:%03d\n"),
			ElTiSys.wHour, ElTiSys.wMinute, ElTiSys.wSecond,
			ElTiSys.wMilliseconds);

		_tprintf( _T("User Time : %02d:%02d:%02d:%03d\n"),
			UsTiSys.wHour, UsTiSys.wMinute, UsTiSys.wSecond,
			UsTiSys.wMilliseconds);

		_tprintf( _T("Sys Time : %02d:%02d:%02d:%03d\n"),
			KeTiSys.wHour, KeTiSys.wMinute, KeTiSys.wSecond,
			KeTiSys.wMilliseconds);
	}
	else
	{
		_tprintf( _T("not NT\n") );
	}

	CloseHandle(ProcInfo.hThread); CloseHandle(ProcInfo.hProcess);
	CloseHandle(hProc);

	return 0;
}