times.c (58f0484fa251c266ede97b591b499fe3dd4f578e) times.c (22626efa0f96cbca4edae882e46cb56b1879706b)
1/*-
2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if defined(LIBC_SCCS) && !defined(lint)
35static char sccsid[] = "@(#)times.c 8.1 (Berkeley) 6/4/93";
36#endif /* LIBC_SCCS and not lint */
1/*-
2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 20 unchanged lines hidden (view full) ---

29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if defined(LIBC_SCCS) && !defined(lint)
35static char sccsid[] = "@(#)times.c 8.1 (Berkeley) 6/4/93";
36#endif /* LIBC_SCCS and not lint */
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD$");
37
38#include <sys/param.h>
39#include <sys/time.h>
40#include <sys/times.h>
41#include <sys/resource.h>
42
43/*
44 * Convert usec to clock ticks; could do (usec * CLK_TCK) / 1000000,
45 * but this would overflow if we switch to nanosec.
46 */
47#define CONVTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK))
48
49clock_t
50times(tp)
39
40#include <sys/param.h>
41#include <sys/time.h>
42#include <sys/times.h>
43#include <sys/resource.h>
44
45/*
46 * Convert usec to clock ticks; could do (usec * CLK_TCK) / 1000000,
47 * but this would overflow if we switch to nanosec.
48 */
49#define CONVTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK))
50
51clock_t
52times(tp)
51 register struct tms *tp;
53 struct tms *tp;
52{
53 struct rusage ru;
54 struct timeval t;
55
56 if (getrusage(RUSAGE_SELF, &ru) < 0)
57 return ((clock_t)-1);
58 tp->tms_utime = CONVTCK(ru.ru_utime);
59 tp->tms_stime = CONVTCK(ru.ru_stime);
60 if (getrusage(RUSAGE_CHILDREN, &ru) < 0)
61 return ((clock_t)-1);
62 tp->tms_cutime = CONVTCK(ru.ru_utime);
63 tp->tms_cstime = CONVTCK(ru.ru_stime);
64 if (gettimeofday(&t, (struct timezone *)0))
65 return ((clock_t)-1);
66 return ((clock_t)(CONVTCK(t)));
67}
54{
55 struct rusage ru;
56 struct timeval t;
57
58 if (getrusage(RUSAGE_SELF, &ru) < 0)
59 return ((clock_t)-1);
60 tp->tms_utime = CONVTCK(ru.ru_utime);
61 tp->tms_stime = CONVTCK(ru.ru_stime);
62 if (getrusage(RUSAGE_CHILDREN, &ru) < 0)
63 return ((clock_t)-1);
64 tp->tms_cutime = CONVTCK(ru.ru_utime);
65 tp->tms_cstime = CONVTCK(ru.ru_stime);
66 if (gettimeofday(&t, (struct timezone *)0))
67 return ((clock_t)-1);
68 return ((clock_t)(CONVTCK(t)));
69}