-/**
-Returns the current timestamp.
-*/
-TimeStamp now()
-{
-#ifndef WIN32
- timeval tv;
- gettimeofday(&tv, 0);
- return TimeStamp(tv.tv_sec*1000000LL+tv.tv_usec);
-#else
- static int64_t epoch=0;
- if(!epoch)
- {
- SYSTEMTIME st;
- st.wYear=1970;
- st.wMonth=1;
- st.wDay=1;
- st.wHour=0;
- st.wMinute=0;
- st.wSecond=0;
- st.wMilliseconds=0;
-
- FILETIME ft;
- SystemTimeToFileTime(&st, &ft);
- epoch=(ft.dwLowDateTime+(int64_t)ft.dwHighDateTime<<32)/10;
- }
-
- FILETIME ft;
- GetSystemTimeAsFileTime(&ft);
- return TimeStamp((ft.dwLowDateTime+(int64_t)ft.dwHighDateTime<<32)/10-epoch);
-#endif
-}
-
-/**
-Returns the CPU time used by the program so far.
-*/
-TimeDelta get_cpu_time()
-{
-#ifndef WIN32
- rusage ru;
- getrusage(RUSAGE_SELF, &ru);
- return (ru.ru_utime.tv_sec+ru.ru_stime.tv_sec)*sec + (ru.ru_utime.tv_usec+ru.ru_stime.tv_usec)*usec;
-#else
- //XXX Figure out the function to use on Win32
- return TimeDelta();
-#endif
-}
-
-/**
-Sleeps for the given time.
-*/
-int sleep(const TimeDelta &d)