/* $Id: signal.h,v 1.2 1996/01/16 14:22:39 chris Exp $ *//* * Copyright (c) 1982, 1986, 1989, 1991 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	7.17 (Berkeley) 9/3/91 */#ifndef	_SIGNAL_H_#define	_SIGNAL_H_#define NSIG	32		/* counting 0; could be 33 (mask is 1-32) */#ifndef _POSIX_SOURCE#include <machine/trap.h>	/* codes for SIGILL, SIGFPE */#endif#define	SIGHUP	1	/* hangup */#define	SIGINT	2	/* interrupt */#define	SIGQUIT	3	/* quit */#define	SIGILL	4	/* illegal instruction (not reset when caught) */#ifndef _POSIX_SOURCE#define	SIGTRAP	5	/* trace trap (not reset when caught) */#endif#define	SIGABRT	6	/* abort() */#ifndef _POSIX_SOURCE#define	SIGIOT	SIGABRT	/* compatibility */#define	SIGEMT	7	/* EMT instruction */#endif#define	SIGFPE	8	/* floating point exception */#define	SIGKILL	9	/* kill (cannot be caught or ignored) */#ifndef _POSIX_SOURCE#define	SIGBUS	10	/* bus error */#endif#define	SIGSEGV	11	/* segmentation violation */#ifndef _POSIX_SOURCE#define	SIGSYS	12	/* bad argument to system call */#endif#define	SIGPIPE	13	/* write on a pipe with no one to read it */#define	SIGALRM	14	/* alarm clock */#define	SIGTERM	15	/* software termination signal from kill */#ifndef _POSIX_SOURCE#define	SIGURG	16	/* urgent condition on IO channel */#endif#define	SIGSTOP	17	/* sendable stop signal not from tty */#define	SIGTSTP	18	/* stop signal from tty */#define	SIGCONT	19	/* continue a stopped process */#define	SIGCHLD	20	/* to parent on child stop or exit */#define	SIGTTIN	21	/* to readers pgrp upon background tty read */#define	SIGTTOU	22	/* like TTIN for output if (tp->t_local&LTOSTOP) */#ifndef _POSIX_SOURCE#define	SIGIO	23	/* input/output possible signal */#define	SIGXCPU	24	/* exceeded CPU time limit */#define	SIGXFSZ	25	/* exceeded file size limit */#define	SIGVTALRM 26	/* virtual time alarm */#define	SIGPROF	27	/* profiling time alarm */#define SIGWINCH 28	/* window size changes */#define SIGINFO	29	/* information request */#endif#define SIGUSR1 30	/* user defined signal 1 */#define SIGUSR2 31	/* user defined signal 2 */#include <sys/cdefs.h>#ifndef _POSIX_SOURCEtypedef	void (*sig_t) __P((int));#endiftypedef int sig_atomic_t;		/* XXX should be machine dependent. */typedef unsigned int sigset_t;__BEGIN_DECLSint	sigaddset __P((sigset_t *, int));int	sigdelset __P((sigset_t *, int));int	sigemptyset __P((sigset_t *));int	sigfillset __P((sigset_t *));int	sigismember __P((const sigset_t *, int));__END_DECLS#define sigemptyset(set)	( *(set) = 0 )#define sigfillset(set)		( *(set) = ~(sigset_t)0, 0 )#define sigaddset(set, signo)	( *(set) |= 1 << ((signo) - 1), 0)#define sigdelset(set, signo)	( *(set) &= ~(1 << ((signo) - 1)), 0)#define sigismember(set, signo)	( (*(set) & (1 << ((signo) - 1))) != 0)/* * Signal vector "template" used in sigaction call. */struct	sigaction {	void	(*sa_handler)();	/* signal handler */	sigset_t sa_mask;		/* signal mask to apply */	int	sa_flags;		/* see signal options below */};#ifndef _POSIX_SOURCE#define SA_ONSTACK	0x0001	/* take signal on signal stack */#define SA_RESTART	0x0002	/* restart system on signal return */#endif#define SA_NOCLDSTOP	0x0004	/* do not generate SIGCHLD on child stop *//* * Flags for sigprocmask: */#define	SIG_BLOCK	1	/* block specified signal set */#define	SIG_UNBLOCK	2	/* unblock specified signal set */#define	SIG_SETMASK	3	/* set specified signal set */#ifndef _POSIX_SOURCE/* * 4.3 compatibility: * Signal vector "template" used in sigvec call. */struct	sigvec {	void	(*sv_handler)();	/* signal handler */	int	sv_mask;		/* signal mask to apply */	int	sv_flags;		/* see signal options below */};#define SV_ONSTACK	SA_ONSTACK#define SV_INTERRUPT	SA_RESTART	/* same bit, opposite sense */#define sv_onstack sv_flags	/* isn't compatibility wonderful! *//* * Structure used in sigaltstack call. */struct	sigaltstack {	char	*ss_base;		/* signal stack base */	int	ss_len;			/* signal stack length */	int	ss_onstack;		/* current status */};/* * Structure used in sigstack call. */struct	sigstack {	char	*ss_sp;			/* signal stack pointer */	int	ss_onstack;		/* current status */};/* * Information pushed on stack when a signal is delivered. * This is used by the kernel to restore state following * execution of the signal handler.  It is also made available * to the handler to allow it to restore state properly if * a non-standard exit is performed. */struct	sigcontext {	int	sc_onstack;		/* sigstack state to restore */	int	sc_mask;		/* signal mask to restore */	int	sc_sp;			/* sp to restore */	int	sc_fp;			/* fp to restore */	int	sc_ap;			/* ap to restore */	int	sc_pc;			/* pc to restore */	int	sc_ps;			/* psl to restore */};/* * Macro for converting signal number to a mask suitable for * sigblock(). */#define sigmask(m)	(1 << ((m)-1))#define	BADSIG		(void (*)())-1#endif	/* _POSIX_SOURCE */#define	SIG_DFL		(void (*)())0#define	SIG_IGN		(void (*)())1#define	SIG_ERR		(void (*)())-1#ifndef KERNEL#include <sys/types.h>__BEGIN_DECLSvoid	(*signal __P((int, void (*) __P((int))))) __P((int));int	raise __P((int));#ifndef	_ANSI_SOURCEint	kill __P((pid_t, int));int	sigaction __P((int, const struct sigaction *, struct sigaction *));int	sigpending __P((sigset_t *));int	sigprocmask __P((int, const sigset_t *, sigset_t *));int	sigsuspend __P((const sigset_t *));#endif	/* !_ANSI_SOURCE */#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)int	killpg __P((pid_t, int));void	psignal __P((unsigned int, const char *));int	sigblock __P((int));int	siginterrupt __P((int, int));int	sigpause __P((int));int	sigreturn __P((struct sigcontext *));int	sigsetmask __P((int));int	sigstack __P((const struct sigstack *, struct sigstack *));int	sigvec __P((int, struct sigvec *, struct sigvec *));#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */__END_DECLS#endif	/* !KERNEL */#endif	/* !_SIGNAL_H_ */