blob: 1960a71c622dec00c21e47dc0ea2a3bacf77227b (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/* High precision, low overhead timing functions. Generic version.
Copyright (C) 1998-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _HP_TIMING_H
#define _HP_TIMING_H 1
#include <time.h>
#include <stdint.h>
#include <hp-timing-common.h>
/* It should not be used for ld.so. */
#define HP_TIMING_INLINE (0)
typedef uint64_t hp_timing_t;
/* The clock_gettime (CLOCK_MONOTONIC) has unspecified starting time,
nano-second accuracy, and for some architectues is implemented as
vDSO symbol. */
#ifdef _ISOMAC
# define HP_TIMING_NOW(var) \
({ \
struct timespec tv; \
clock_gettime (CLOCK_MONOTONIC, &tv); \
(var) = (tv.tv_nsec + UINT64_C(1000000000) * tv.tv_sec); \
})
#else
# define HP_TIMING_NOW(var) \
({ \
struct __timespec64 tv; \
__clock_gettime64 (CLOCK_MONOTONIC, &tv); \
(var) = (tv.tv_nsec + UINT64_C(1000000000) * tv.tv_sec); \
})
#endif
#endif /* hp-timing.h */
|
