ack/lang/cem/libcc.ansi/headers/signal.h

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1989-05-16 13:13:53 +00:00
/*
* signal.h - signal handling
*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
/* $Header$ */
#ifndef _SIGNAL_HEADER_
#define _SIGNAL_HEADER_
typedef int sig_atomic_t;
#define SIG_ERR (void (*)())-1
#if defined(em22) || defined(em24) || defined(em44)
#define SIG_DFL ((void (*)())-2)
#define SIG_IGN ((void (*)())-3)
#else
#define SIG_DFL ((void (*)())0)
#define SIG_IGN ((void (*)())1)
#endif /* SIG_ERR */
#define SIGHUP 1 /* hangup */
#define SIGINT 2 /* interrupt */
#define SIGQUIT 3 /* quit */
#define SIGILL 4 /* illegal instruction (not reset when caught) */
#define SIGTRAP 5 /* trace trap (not reset when caught) */
#define SIGIOT 6 /* IOT instruction */
#define SIGABRT 6 /* ANSI abort trap */
#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 /* bad argument to system call */
#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 */
#ifdef __USG
#define SIGUSR1 16 /* user defined signal 1 */
#define SIGUSR2 17 /* user defined signal 2 */
#define SIGCLD 18 /* death of a child */
#define SIGPWR 19 /* power-fail signal */
#define _NSIG 20
#elif defined(__BSD4_2)
#define SIGURG 16 /* urgent condition */
#define SIGSTOP 17 /* stop signal not from tty */
#define SIGTSTP 18 /* stop signal from tty */
#define SIGCONT 19 /* continue a stopped process */
#define SIGCHLD 20 /* death of a child */
#define SIGCLD 20 /* System V compat. */
#define SIGTTIN 21 /* background tty read */
#define SIGTTOU 22 /* background tty write */
#define SIGIO 23 /* I/O possible signal */
#define SIGPOLL SIGIO /* System V compat. */
#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 has changed */
#define SIGLOST 29 /* resource lost */
#define SIGUSR1 30 /* user defined signal 1 */
#define SIGUSR2 31 /* user defined signal 2 */
#define _NSIG 32
#else
#define _NSIG 16
#endif /* __USG or __BSD4_2 */
#ifdef __BSD4_2
struct sigvec {
int (*sv_handler)(); /* handler */
int sv_mask; /* mask to apply */
int sv_flags;
};
#define SV_ONSTACK 0x0001 /* take signal on signal stack */
#define SV_INTERRUPT 0x0002 /* do not restart system on signal return */
#define SV_RESETHAND 0x0004 /* reset signal handler to SIG_DFL when signal taken */
#define sv_onstack sv_flags /* compat. */
struct sigstack {
char *ss_sp; /* signal stack pointer */
int ss_onstack; /* current status */
};
struct sigcontext {
int sc_onstack; /* sigstack state to restore */
int sc_mask; /* signal mask to restore */
int sc_sp; /* sp to restore */
#ifdef vax
int sc_fp; /* fp to restore */
int sc_ap; /* ap to restore */
#endif /* vax */
int sc_pc; /* pc to retore */
int sc_ps; /* psl to restore */
};
#define BADSIG SIG_ERR /* compat. */
#define sigmask(m) (1 << ((m)-1))
/*
* These are only defined for shutting up the compiler.
*/
#ifdef __STDC__
int sigvec(int sig, struct sigvec *vec, struct sigvec *ovec);
int sigstack(struct sigstack *ss, struct sigstack *oss);
int sigblock(int mask);
int sigsetmask(int mask);
int sigpause(int sigmask);
#endif /* __STDC__ */
#endif /* __BSD4_2 */
#ifdef __STDC__
void (*signal(int sig, void (*func)(int)))(int);
int raise(int sig);
#endif /* __STDC__ */
#endif /* _SIGNAL_HEADER_ */