?? timer_settime.c
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/* Copyright (C) 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. 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; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */#include <errno.h>#include <stdlib.h>#include <time.h>#include <sysdep.h>#include <kernel-features.h>#include "kernel-posix-timers.h"#ifdef __NR_timer_settime# ifndef __ASSUME_POSIX_TIMERSstatic int compat_timer_settime (timer_t timerid, int flags, const struct itimerspec *value, struct itimerspec *ovalue);# define timer_settime static compat_timer_settime# include <nptl/sysdeps/pthread/timer_settime.c># undef timer_settime# endif# ifdef timer_settime_alias# define timer_settime timer_settime_alias# endifinttimer_settime (timerid, flags, value, ovalue) timer_t timerid; int flags; const struct itimerspec *value; struct itimerspec *ovalue;{# undef timer_settime# ifndef __ASSUME_POSIX_TIMERS if (__no_posix_timers >= 0)# endif { struct timer *kt = (struct timer *) timerid; /* Delete the kernel timer object. */ int res = INLINE_SYSCALL (timer_settime, 4, kt->ktimerid, flags, value, ovalue);# ifndef __ASSUME_POSIX_TIMERS if (res != -1 || errno != ENOSYS) { /* We know the syscall support is available. */ __no_posix_timers = 1;# endif return res;# ifndef __ASSUME_POSIX_TIMERS }# endif# ifndef __ASSUME_POSIX_TIMERS __no_posix_timers = -1;# endif }# ifndef __ASSUME_POSIX_TIMERS return compat_timer_settime (timerid, flags, value, ovalue);# endif}#else# ifdef timer_settime_alias# define timer_settime timer_settime_alias# endif/* The new system calls are not available. Use the userlevel implementation. */# include <nptl/sysdeps/pthread/timer_settime.c>#endif
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