mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-22 02:40:08 +00:00
ad0e8eb0a5
2003-03-02 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_MONOTONIC_CLOCK. * linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.
52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/* Get file-specific information about a file. Linux version.
|
|
Copyright (C) 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <sysdep.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
static long int posix_sysconf (int name);
|
|
|
|
/* Define this first, so it can be inlined. */
|
|
#define __sysconf static posix_sysconf
|
|
#include <sysdeps/posix/sysconf.c>
|
|
|
|
|
|
/* Get the value of the system variable NAME. */
|
|
long int
|
|
__sysconf (int name)
|
|
{
|
|
switch (name)
|
|
{
|
|
#ifdef __NR_clock_getres
|
|
case _SC_MONOTONIC_CLOCK:
|
|
/* Check using the clock_getres system call. */
|
|
{
|
|
struct timespec ts;
|
|
INTERNAL_SYSCALL_DECL (err);
|
|
int r = INTERNAL_SYSCALL (clock_getres, err, 2, CLOCK_MONOTONIC, &ts);
|
|
return INTERNAL_SYSCALL_ERROR_P (r, err) ? 0 : 1;
|
|
}
|
|
#endif
|
|
|
|
default:
|
|
return posix_sysconf (name);
|
|
}
|
|
}
|