/* ECP: FILEname=fig13_33.c */
/* 1*/   #include <sys/time.h>
/* 2*/   #include <sys/resource.h>

/* 3*/   #define Milli( X ) ( ( X.tv_sec * 1000 + X.tv_usec / 1000 ) )

/* 4*/   long int
/* 5*/   MilliElapsed( void )
/* 6*/   {
/* 7*/       struct Rusage Buf;
/* 8*/       static struct Timeval LastUtime;
/* 9*/       long int ElapsedTime;
/*10*/       
/*11*/       getrusage( RUSAGE_SELF, &Buf );
/*12*/       ElapsedTime = Milli( Buf.ru_utime ) - Milli( LastUtime );
/*13*/       LastUtime = Buf.ru_utime;

/*14*/       return ElapsedTime;
/*15*/   }