98 lines
3.3 KiB
C
98 lines
3.3 KiB
C
/*
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* signal.h - signal handling
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*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* $Id$ */
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#if !defined(_SIGNAL_H)
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#define _SIGNAL_H
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typedef int sig_atomic_t;
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#if defined(_POSIX_SOURCE)
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#if defined(_MINIX)
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typedef unsigned short sigset_t;
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#define SIG_BLOCK 0 /* for blocking signals */
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#define SIG_UNBLOCK 1 /* for unblocking signals */
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#define SIG_SETMASK 2 /* for setting the signal mask */
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struct sigaction {
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void (*sa_handler)(int);/* SIG_DFL, SIG_IGN or pointer to function */
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sigset_t sa_mask; /* signals blocked during handling */
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int sa_flags; /* special flags */
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};
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#endif
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#endif
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#define SIG_ERR ((void (*)(int))-1)
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#if defined(__em22) || defined(__em24) || defined(__em44)
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#define SIG_DFL ((void (*)(int))-2)
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#define SIG_IGN ((void (*)(int))-3)
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#else
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#define SIG_DFL ((void (*)(int))0)
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#define SIG_IGN ((void (*)(int))1)
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#endif /* no interpretation */
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#define SIGHUP 1 /* hangup */
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#define SIGINT 2 /* interrupt */
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#define SIGQUIT 3 /* quit */
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#define SIGILL 4 /* illegal instruction (not reset when caught) */
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#define SIGTRAP 5 /* trace trap (not reset when caught) */
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#define SIGIOT 6 /* IOT instruction */
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#define SIGABRT 6 /* ANSI abort trap */
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#define SIGEMT 7 /* EMT instruction */
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#define SIGFPE 8 /* floating point exception */
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#define SIGKILL 9 /* kill (cannot be caught or ignored) */
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#define SIGBUS 10 /* bus error */
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#define SIGSEGV 11 /* segmentation violation */
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#define SIGSYS 12 /* bad argument to system call */
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#define SIGPIPE 13 /* write on a pipe with no one to read it */
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#define SIGALRM 14 /* alarm clock */
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#define SIGTERM 15 /* software termination signal from kill */
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#if defined(__USG)
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#define SIGUSR1 16 /* user defined signal 1 */
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#define SIGUSR2 17 /* user defined signal 2 */
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#define SIGCLD 18 /* death of a child */
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#define SIGPWR 19 /* power-fail signal */
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#define _NSIG 20
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#elif defined(__BSD4_2)
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#define SIGURG 16 /* urgent condition */
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#define SIGSTOP 17 /* stop signal not from tty */
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#define SIGTSTP 18 /* stop signal from tty */
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#define SIGCONT 19 /* continue a stopped process */
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#define SIGCHLD 20 /* death of a child */
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#define SIGCLD 20 /* System V compat. */
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#define SIGTTIN 21 /* background tty read */
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#define SIGTTOU 22 /* background tty write */
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#define SIGIO 23 /* I/O possible signal */
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#define SIGPOLL SIGIO /* System V compat. */
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#define SIGXCPU 24 /* exceeded CPU time limit */
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#define SIGXFSZ 25 /* exceeded file size limit */
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#define SIGVTALRM 26 /* virtual time alarm */
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#define SIGPROF 27 /* profiling time alarm */
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#define SIGWINCH 28 /* window has changed */
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#define SIGLOST 29 /* resource lost */
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#define SIGUSR1 30 /* user defined signal 1 */
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#define SIGUSR2 31 /* user defined signal 2 */
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#define _NSIG 32
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#elif defined(_MINIX)
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/* The following signals are defined but not supported */
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#define SIGCHLD 17 /* child process terminated or stopped */
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#define SIGCONT 18 /* continue if stopped */
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#define SIGSTOP 19 /* stop signal */
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#define SIGTSTP 20 /* interactive stop signal */
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#define SIGTTIN 21 /* background process wants to read */
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#define SIGTTOU 22 /* background process wants to write */
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#define _NSIG 16
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#else
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#define _NSIG 16
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#endif /* __USG or __BSD4_2 */
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void (*signal(int _sig, void (*_func)(int)))(int);
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int raise(int _sig);
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#endif /* _SIGNAL_H */
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