1 /* Copyright (C) 2001 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
20 #include <libc-internal.h>
21 #include "internals.h"
26 __pthread_clock_gettime (hp_timing_t freq
, struct timespec
*tp
)
29 pthread_descr self
= thread_self ();
31 /* Get the current counter. */
34 /* Compute the offset since the start time of the process. */
35 tsc
-= THREAD_GETMEM (self
, p_cpuclock_offset
);
37 /* Compute the seconds. */
38 tp
->tv_sec
= tsc
/ freq
;
40 /* And the nanoseconds. This computation should be stable until
41 we get machines with about 16GHz frequency. */
42 tp
->tv_nsec
= ((tsc
% freq
) * 1000000000ull) / freq
;