/*-
* Copyright (c) 1982, 1986, 1989, 1991, 1993
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* 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.
* 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 8.4 (Berkeley) 5/4/95
* $FreeBSD: src/sys/sys/signal.h,v 1.45 2004/06/11 11:43:46 phk Exp $
*/
#ifndef _SYS_SIGNAL_H_
#define _SYS_SIGNAL_H_
#include <sys/cdefs.h>
#include <sys/_types.h>
#include <sys/_sigset.h>
#include <stdapis/machine/signal.h> /* sig_atomic_t; trap codes; sigcontext */
/*
* System defined signals.
*/
#define SIGHUP 1 /* hangup */
#define SIGINT 2 /* interrupt */
#define SIGQUIT 3 /* quit */
#define SIGILL 4 /* illegal instr. (not reset when caught) */
#define SIGTRAP 5 /* trace trap (not reset when caught) */
#define SIGABRT 6 /* abort() */
#define SIGIOT SIGABRT /* compatibility */
#define SIGEMT 7 /* EMT instruction */
#define SIGFPE 8 /* floating point exception */
#define SIGKILL 9 /* kill (cannot be caught or ignored) */
#define SIGBUS 10 /* bus error */
#define SIGSEGV 11 /* segmentation violation */
#define SIGSYS 12 /* non-existent system call invoked */
#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 */
#define SIGURG 16 /* urgent condition on IO channel */
#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 if (tp->t_local<OSTOP) */
#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 */
#define SIGUSR1 30 /* user defined signal 1 */
#define SIGUSR2 31 /* user defined signal 2 */
#define SIGTHR 32 /* Thread interrupt. */
#define SIGRTMIN 33
#define SIGRTMAX 64
/*
* XXX missing SIGRTMIN, SIGRTMAX.
*/
#define SIG_DFL ((__sighandler_t *)0)
#define SIG_IGN ((__sighandler_t *)1)
#define SIG_ERR ((__sighandler_t *)-1)
#define SIG_HOLD ((__sighandler_t *)3)
/*
* XXX missing SIG_HOLD.
*/
/*-
* Type of a signal handling function.
*
* Language spec sez signal handlers take exactly one arg, even though we
* actually supply three. Ugh!
*
* We don't try to hide the difference by leaving out the args because
* that would cause warnings about conformant programs. Nonconformant
* programs can avoid the warnings by casting to (__sighandler_t *) or
* sig_t before calling signal() or assigning to sa_handler or sv_handler.
*
* The kernel should reverse the cast before calling the function. It
* has no way to do this, but on most machines 1-arg and 3-arg functions
* have the same calling protocol so there is no problem in practice.
* A bit in sa_flags could be used to specify the number of args.
*/
typedef void __sighandler_t(int);
#ifndef _SIGSET_T_DECLARED
#define _SIGSET_T_DECLARED
typedef __uint64_t sigset_t;
#endif
#if __POSIX_VISIBLE || __XSI_VISIBLE
struct __siginfo_t;
/*
* Signal vector "template" used in sigaction call.
*/
struct sigaction {
union {
void (*_sa_handler)(int);
void (*_sa_sigaction)(int, struct __siginfo_t*, void *);
} _sa_u; /* signal handler */
int sa_flags; /* see signal options below */
sigset_t sa_mask; /* signal mask to apply */
};
#define sa_handler _sa_u._sa_handler
#define sa_sigaction _sa_u._sa_sigaction
#endif
#if __POSIX_VISIBLE || __XSI_VISIBLE
#define SA_NOCLDSTOP 0x0008 /* do not generate SIGCHLD on child stop */
#endif /* __POSIX_VISIBLE || __XSI_VISIBLE */
#if __XSI_VISIBLE
#define SA_ONSTACK 0x0001 /* take signal on signal stack */
#define SA_RESTART 0x0002 /* restart system call on signal return */
#define SA_RESETHAND 0x0004 /* reset to SIG_DFL when taking signal */
#define SA_NODEFER 0x0010 /* don't mask the signal we're delivering */
#define SA_NOCLDWAIT 0x0020 /* don't keep zombies around */
#define SA_SIGINFO 0x0040 /* signal handler with SA_SIGINFO args */
#endif
#if __BSD_VISIBLE
#define NSIG 32 /* number of old signals (counting 0) */
#endif
#endif /* !_SYS_SIGNAL_H_ */