diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c')
-rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c b/libpthread/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c new file mode 100644 index 000000000..7afc5ec6f --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c @@ -0,0 +1,80 @@ +/* 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 <time.h> +#include <sysdep.h> +#include <bits/kernel-features.h> +#include "kernel-posix-timers.h" + + +#ifdef __NR_timer_getoverrun +# ifndef __ASSUME_POSIX_TIMERS +static int compat_timer_getoverrun (timer_t timerid); +# define timer_getoverrun static compat_timer_getoverrun +# include <nptl/sysdeps/pthread/timer_getoverr.c> +# undef timer_getoverrun +# endif + +# ifdef timer_getoverrun_alias +# define timer_getoverrun timer_getoverrun_alias +# endif + + +int +timer_getoverrun (timer_t timerid) +{ +# undef timer_getoverrun +# ifndef __ASSUME_POSIX_TIMERS + if (__no_posix_timers >= 0) +# endif + { + struct timer *kt = (struct timer *) timerid; + + /* Get the information from the kernel. */ + int res = INLINE_SYSCALL (timer_getoverrun, 1, kt->ktimerid); + +# 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_getoverrun (timerid); +# endif +} +#else +# ifdef timer_getoverrun_alias +# define timer_getoverrun timer_getoverrun_alias +# endif +/* The new system calls are not available. Use the userlevel + implementation. */ +# include <nptl/sysdeps/pthread/timer_getoverr.c> +#endif |