#ifndef _SIGNAL_H

# include <signal/signal.h>

# ifndef _ISOMAC

libc_hidden_proto (sigemptyset)

libc_hidden_proto (sigfillset)

libc_hidden_proto (sigaddset)

libc_hidden_proto (sigdelset)

libc_hidden_proto (sigismember)

extern int __sigpause (int sig_or_mask, int is_sig);

libc_hidden_proto (__sigpause)

libc_hidden_proto (raise)

libc_hidden_proto (__libc_current_sigrtmin)

libc_hidden_proto (__libc_current_sigrtmax)

libc_hidden_proto (_sys_siglist)

/* Now define the internal interfaces.  */

extern __sighandler_t __bsd_signal (int __sig, __sighandler_t __handler);

extern int __kill (__pid_t __pid, int __sig);

libc_hidden_proto (__kill)

extern int __sigaction (int __sig, const struct sigaction *__restrict __act,

			struct sigaction *__restrict __oact);

libc_hidden_proto (__sigaction)

extern int __sigblock (int __mask);

libc_hidden_proto (__sigblock)

extern int __sigsetmask (int __mask);

extern int __sigprocmask (int __how,

			  const sigset_t *__set, sigset_t *__oset);

libc_hidden_proto (__sigprocmask)

extern int __sigsuspend (const sigset_t *__set);

libc_hidden_proto (__sigsuspend)

extern int __sigwait (const sigset_t *__set, int *__sig);

libc_hidden_proto (__sigwait)

extern int __sigwaitinfo (const sigset_t *__set, siginfo_t *__info);

libc_hidden_proto (__sigwaitinfo)

extern int __sigtimedwait (const sigset_t *__set, siginfo_t *__info,

			   const struct timespec *__timeout);

libc_hidden_proto (__sigtimedwait)

extern int __sigqueue (__pid_t __pid, int __sig,

		       const union sigval __val);

#ifdef __USE_MISC

extern int __sigreturn (struct sigcontext *__scp);

#endif

extern int __sigaltstack (const stack_t *__ss,

			  stack_t *__oss);

libc_hidden_proto (__sigaltstack)

extern int __libc_sigaction (int sig, const struct sigaction *act,

			     struct sigaction *oact);

libc_hidden_proto (__libc_sigaction)

extern int __default_sigpause (int mask);

extern int __xpg_sigpause (int sig);

/* Allocate real-time signal with highest/lowest available priority.  */

extern int __libc_allocate_rtsig (int __high);

#  if IS_IN (rtld) && !defined NO_RTLD_HIDDEN

extern __typeof (__sigaction) __sigaction attribute_hidden;

extern __typeof (__libc_sigaction) __libc_sigaction attribute_hidden;

#  endif

# endif /* _ISOMAC */

#endif /* signal.h */