gettime.c

Parallel programming／Lou Baker, Bradley J.Smith ．—New York：McGraw-Hill Book Co.

GetCurTime()
{
 long t;
 struct timeval tv;
 struct timezone tz;
 /* Keep start time to avoid clock rollover problems */
 static long start_t;

#ifdef OLD
 /* Old method - use clock time */
 t=clock()/(CLOCKS_PER_SEC/100L);
#endif


 /* Try using real wall clock time */
 gettimeofday(&tv, &tz);
 if(!start_t)
	start_t = tv.tv_sec;
 t = 100L * (long) (tv.tv_sec - start_t) + ((long) tv.tv_usec/ 10000L);

 return(t);
}