From ad0e8eb0a565a44fe9616354d4e7556c3df9ae76 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Mon, 3 Mar 2003 04:57:09 +0000 Subject: Update. 2003-03-02 Ulrich Drepper * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_MONOTONIC_CLOCK. * linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. --- sysdeps/unix/sysv/linux/sysconf.c | 51 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/sysconf.c (limited to 'sysdeps/unix/sysv/linux/sysconf.c') diff --git a/sysdeps/unix/sysv/linux/sysconf.c b/sysdeps/unix/sysv/linux/sysconf.c new file mode 100644 index 0000000..92b1e66 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sysconf.c @@ -0,0 +1,51 @@ +/* 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 +#include +#include + +static long int posix_sysconf (int name); + +/* Define this first, so it can be inlined. */ +#define __sysconf static posix_sysconf +#include + + +/* 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); + } +} -- cgit v1.1