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/* vi: set sw=4 ts=4: */
/*
* sigsuspend() for uClibc
*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <sys/syscall.h>
#if defined __USE_POSIX
#include <signal.h>
#undef sigsuspend
libc_hidden_proto(sigsuspend)
#ifdef __NR_rt_sigsuspend
# define __NR___rt_sigsuspend __NR_rt_sigsuspend
# ifdef __UCLIBC_HAS_THREADS_NATIVE__
# include <errno.h>
# include <sysdep-cancel.h>
/* Change the set of blocked signals to SET,
wait until a signal arrives, and restore the set of blocked signals. */
int sigsuspend (const sigset_t *set)
{
if (SINGLE_THREAD_P)
return INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8);
int oldtype = LIBC_CANCEL_ASYNC ();
int result = INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8);
LIBC_CANCEL_RESET (oldtype);
return result;
}
# else
static inline _syscall2(int, __rt_sigsuspend, const sigset_t *, mask, size_t, size);
int sigsuspend(const sigset_t * mask)
{
return __rt_sigsuspend(mask, _NSIG / 8);
}
# endif
#else
# define __NR___syscall_sigsuspend __NR_sigsuspend
static __inline__ _syscall3(int, __syscall_sigsuspend, int, a, unsigned long int, b,
unsigned long int, c)
int sigsuspend(const sigset_t * set)
{
return __syscall_sigsuspend(0, 0, set->__val[0]);
}
#endif
libc_hidden_def(sigsuspend)
#endif
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