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/*
* Mach Operating System
* Copyright (c) 1987 Carnegie-Mellon University
* All rights reserved. The CMU software License Agreement specifies
* the terms and conditions for use and redistribution.
*/
/*
* HISTORY
* 7-Jan-93 Mac Gillon (mgillon) at NeXT
* Integrated POSIX changes
*
* 21-May-89 Avadis Tevanian, Jr. (avie) at NeXT, Inc.
* Purged all crud that had accumulated in this file. Machine specific
* definitions now go in <machine/signal.h> (including sigcontext).
*/
/*
* Copyright (c) 1982, 1986 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*
* @(#)signal.h 7.1 (Berkeley) 6/4/86
*/
#ifndef _SYS_SIGNAL_H
#define _SYS_SIGNAL_H
#if !defined(KERNEL) && defined(_POSIX_SOURCE)
#include <standards.h>
#endif
#ifdef _NEXT_SOURCE
#import <machine/signal.h>
#define NSIG 32
#endif
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#define SIGHUP 1 /* hangup */
#define SIGINT 2 /* interrupt */
#define SIGQUIT 3 /* quit */
#define SIGILL 4 /* illegal instruction (not */
/* reset when caught) */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
#ifdef _NEXT_SOURCE
/* CHME, CHMS, CHMU are not yet given back to users
* reasonably
*/
#define SIGTRAP 5 /* trace trap (not reset */
#endif /* _NEXT_SOURCE */
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#define SIGABRT 6 /* IOT instruction */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
#ifdef _NEXT_SOURCE
#define SIGIOT SIGABRT /* compatibility */
#define SIGEMT 7 /* EMT instruction */
#endif /* _NEXT_SOURCE */
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#define SIGFPE 8 /* floating point exception */
#define SIGKILL 9 /* kill (cannot be caught */
/* or ignored) */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
#ifdef _NEXT_SOURCE
#define SIGBUS 10 /* bus error */
#endif /* _NEXT_SOURCE */
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#define SIGSEGV 11 /* segmentation violation */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
#ifdef _NEXT_SOURCE
#define SIGSYS 12 /* bad argument to system */
/* call */
#endif /* _NEXT_SOURCE */
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#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 */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
#ifdef _NEXT_SOURCE
#define SIGURG 16 /* urgent condition on IO */
/* channel */
#endif /* _NEXT_SOURCE */
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#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 */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
#ifdef _NEXT_SOURCE
#define SIGCLD SIGCHLD /* compatibility */
#endif /* _NEXT_SOURCE */
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#define SIGTTIN 21 /* to readers pgrp upon */
/* background tty read */
#define SIGTTOU 22 /* like TTIN for output */
/* if (tp->t_local<OSTOP) */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
#ifdef _NEXT_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 */
/* SUN_LOCK*/
#define SIGLOST 29 /* resource lost
* (eg, record-lock lost) */
/* SUN_LOCK*/
#endif /* _NEXT_SOURCE */
#define SIGUSR1 30 /* user defined signal 1 */
#define SIGUSR2 31 /* user defined signal 2 */
#if !defined(__STDC__) && !defined(KERNEL)
int (*signal())();
#endif
#ifdef _NEXT_SOURCE
#if !defined(__STDC__) && !defined(KERNEL)
int (*signal())();
#endif
/*
* Signal vector "template" used in sigvec call.
*/
#ifndef ASSEMBLER
struct sigvec {
void (*sv_handler)(); /* signal handler */
int sv_mask; /* signal mask to apply */
int sv_flags; /* see signal options below */
};
#endif /* ASSEMBLER */
#define SV_ONSTACK 0x0001 /* take signal on signal */
/* stack */
#define SV_INTERRUPT 0x0002 /* do not restart system */
/* on signal return */
#define sv_onstack sv_flags /* isn't compatibility */
/* wonderful! */
/*
* Structure used in sigstack call.
*/
#ifndef ASSEMBLER
struct sigstack {
char *ss_sp; /* signal stack pointer */
int ss_onstack; /* current status */
};
#endif
#endif /* _NEXT_SOURCE */
#ifdef __STRICT_BSD__
#define BADSIG (int (*)(int))-1
#define SIG_DFL (int (*)(int))0
#define SIG_IGN (int (*)(int))1
#ifdef KERNEL
#define SIG_CATCH (int (*)(int))2
#define SIG_HOLD (int (*)(int))3
#endif
#else /* __STRICT_BSD__ */
#ifdef _NEXT_SOURCE
#define BADSIG (void (*)(int))-1
#endif /* _NEXT_SOURCE */
#if defined(_NEXT_SOURCE) || defined(_POSIX_SOURCE)
#define SIG_DFL (void (*)(int))0
#define SIG_IGN (void (*)(int))1
#endif /* _NEXT_SOURCE || _POSIX_SOURCE */
#ifdef KERNEL
#define SIG_CATCH (void (*)(int))2
#define SIG_HOLD (void (*)(int))3
#endif
#endif /* __STRICT_BSD__ */
#ifdef _NEXT_SOURCE
#if defined(__STDC__) && !defined(KERNEL)
/* man(2) declarations */
extern int sigblock(int);
extern int sigpause(int);
extern int sigreturn(struct sigcontext *);
extern int sigsetmask(int);
extern int sigstack(struct sigstack *, \
struct sigstack *);
extern int sigvec(int, struct sigvec *, \
struct sigvec *);
/* man(3) declarations */
extern int siginterrupt(int, int);
#ifdef __STRICT_BSD__
extern int (*signal(int, int (*)()))();
#else
extern void (*signal(int, \
void (*)(int)))(int);
#endif
#endif /* __STDC__ && KERNEL */
/*
* Macro for converting signal number to a mask suitable for
* sigblock().
*/
#define sigmask(m) (1 << ((m)-1))
#if KERNEL
/*
* signals delivered on a per-thread basis.
*/
#define threadmask (sigmask(SIGILL)|sigmask(SIGTRAP)|\
sigmask(SIGIOT)|sigmask(SIGEMT)|\
sigmask(SIGFPE)|sigmask(SIGBUS)|\
sigmask(SIGSEGV)|sigmask(SIGSYS)|\
sigmask(SIGPIPE))
#endif
#endif /* _NEXT_SOURCE */
#ifdef _POSIX_SOURCE /* Additional entries required by */
/* POSIX */
#include <sys/types.h> /* for pid_t */
typedef int sigset_t;
struct sigaction {
void (*sa_handler)();
sigset_t sa_mask;
int sa_flags;
};
#define SIG_BLOCK 00
#define SIG_UNBLOCK 01
#define SIG_SETMASK 02
#define SA_NOCLDSTOP 04
#if defined(__STDC__) && !defined(KERNEL)
extern int kill(pid_t pid, int sig);
extern int sigaction(int sig, \
const struct sigaction *act, \
struct sigaction *oact);
extern int sigaddset(sigset_t *set, int signo);
extern int sigdelset(sigset_t *set, int signo);
extern int sigemptyset(sigset_t *set);
extern int sigfillset(sigset_t *set);
extern int sigismember(const sigset_t *set, int signo);
extern int sigpending(sigset_t *set);
extern int sigprocmask(int how, const sigset_t *set, \
sigset_t *oset);
extern int sigsuspend(const sigset_t *sigmask);
#else /* __STDC__ */
extern int kill();
extern int sigaction();
extern int sigaddset();
extern int sigdelset();
extern int sigemptyset();
extern int sigfillset();
extern int sigismember();
extern int sigpending();
extern int sigprocmask();
extern int sigsuspend();
#endif /* __STDC__ */
#endif /* _POSIX_SOURCE */
#endif /* _SYS_SIGNAL_H */
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