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/* Internal sigsuspend system call for LinuxThreads. Generic 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 <errno.h>
#include <signal.h>
#include <unistd.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <linuxthreads/internals.h>
#include "kernel-features.h"
void
__pthread_sigsuspend (const sigset_t *set)
{
INTERNAL_SYSCALL_DECL (err);
#if !__ASSUME_REALTIME_SIGNALS
static int __pthread_missing_rt_sigs;
# ifdef __NR_rt_sigsuspend
/* First try the RT signals. */
if (!__pthread_missing_rt_sigs)
{
/* XXX The size argument hopefully will have to be changed to the
real size of the user-level sigset_t. */
int r;
r = INTERNAL_SYSCALL (rt_sigsuspend, err, 2, set, _NSIG / 8);
if (INTERNAL_SYSCALL_ERRNO (r, err) != ENOSYS)
return;
__pthread_missing_rt_sigs = 1;
}
# endif
INTERNAL_SYSCALL (sigsuspend, err, 3, 0, 0, set->__val[0]);
#else
INTERNAL_SYSCALL (rt_sigsuspend, err, 2, set, _NSIG / 8);
#endif
}
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