/*
 * |-----------------------------------------------------------|
 * | Copyright (c) 1991, 1990 MIPS Computer Systems, Inc.      |
 * | All Rights Reserved                                       |
 * |-----------------------------------------------------------|
 * |          Restricted Rights Legend                         |
 * | Use, duplication, or disclosure by the Government is      |
 * | subject to restrictions as set forth in                   |
 * | subparagraph (c)(1)(ii) of the Rights in Technical        |
 * | Data and Computer Software Clause of DFARS 252.227-7013.  |
 * |         MIPS Computer Systems, Inc.                       |
 * |         950 DeGuigne Avenue                               |
 * |         Sunnyvale, California 94088-3650, USA             |
 * |-----------------------------------------------------------|
 */
#ident	"$Header: clock.c,v 1.9.2.1 92/06/24 13:59:48 marker Exp $"

/*	Copyright (c) 1984 AT&T	*/
/*	  All Rights Reserved  	*/

/*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T	*/
/*	The copyright notice above does not evidence any   	*/
/*	actual or intended publication of such source code.	*/

/*LINTLIBRARY*/

#include <sys/types.h>
#include <sys/times.h>
#include <sys/param.h>	/* for HZ (clock frequency in Hz) */
#define TIMES(B)	(B.tms_utime+B.tms_stime+B.tms_cutime+B.tms_cstime)

extern long times();
static long first = 0L;

#if defined(__STDC__)

#include <time.h>
clock_t clock(void)

#else

long
clock()

#endif
{
	struct tms buffer;

	if (times(&buffer) != -1L && first == 0L)
		first = TIMES(buffer);
	return ((TIMES(buffer) - first) * (1000000L/HZ));
}
