glibc/sysdeps/generic/hp-timing.h
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

52 lines
1.7 KiB
C

/* High precision, low overhead timing functions. Generic version.
Copyright (C) 1998-2021 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 */