source: trunk/src/emx/include/signal.h@ 1624

/** @file
 * FreeBSD 5.1
 * @changed bird:   Added sighold(), sigignore(), sigrelse(). Added wrapper
 *                  between the two sigpause() APIs.
 */

/*-
 * Copyright (c) 1991, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)signal.h    8.3 (Berkeley) 3/30/94
 * $FreeBSD: src/include/signal.h,v 1.24 2003/03/31 23:30:41 jeff Exp $
 */

#ifndef _SIGNAL_H_
#define _SIGNAL_H_

#include <sys/cdefs.h>
#include <sys/_types.h>
#include <sys/signal.h>

#if __BSD_VISIBLE
/*
 * XXX should enlarge these, if only to give empty names instead of bounds
 * errors for large signal numbers.
 */
extern __const char *__const sys_signame[NSIG];
extern __const char *__const sys_siglist[NSIG];
extern __const int sys_nsig;
#endif

#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
#ifndef _PID_T_DECLARED
typedef __pid_t         pid_t;
#define _PID_T_DECLARED
#endif
#endif

__BEGIN_DECLS
int     raise(int);

#if __POSIX_VISIBLE || __XSI_VISIBLE
int     kill(__pid_t, int);
int     sigaction(int, const struct sigaction * __restrict,
            struct sigaction * __restrict);
int     sigaddset(sigset_t *, int);
int     sigdelset(sigset_t *, int);
int     sigemptyset(sigset_t *);
int     sigfillset(sigset_t *);
int     sigismember(const sigset_t *, int);
int     sigpending(sigset_t *);
int     sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
int     sigsuspend(const sigset_t *);
int     sigwait(const sigset_t * __restrict, int * __restrict);
#endif

#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600
#if 0
/*
 * PR: 35924
 * XXX we don't actually have these.  We set _POSIX_REALTIME_SIGNALS to
 * -1 to show that we don't have them, but this symbol is not necessarily
 * in scope (in the current implementation), so we can't use it here.
 */
#endif /* bird we do */
int     sigqueue(__pid_t, int, const union sigval);
struct timespec;
int     sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict,
            const struct timespec * __restrict);
int     sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict);
#endif

#if __XSI_VISIBLE
int     killpg(__pid_t, int);
int     sigaltstack(const stack_t * __restrict, stack_t * __restrict);
int     sigpause(int);
#endif

#if __POSIX_VISIBLE >= 200112
int     siginterrupt(int, int);
#endif

#if __BSD_VISIBLE
int     sigblock(int);
struct __ucontext;              /* XXX spec requires a complete declaration. */
int     sigreturn(const struct __ucontext *);
int     sigsetmask(int);
int     sigstack(const struct sigstack *, struct sigstack *);
int     sigvec(int, struct sigvec *, struct sigvec *);
void    psignal(unsigned int, const char *);
#endif

/* bird: standard call which BSD doesn't prototype. */
#if __XSI_VISIBLE
int     sighold(int);
int     sigignore(int);
int     sigrelse(int);
void  (*sigset(int, void (*)(int)))(int);
#endif
#if __BSD_VISIBLE && !defined(_XOPEN_SOURCE) && !defined(sigpause)
int     __sigpause_bsd(int);
#define sigpause(mask) __sigpause_bsd(mask)
#endif
/* bird: end */

__END_DECLS

#endif /* !_SIGNAL_H_ */