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- /*
- * 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".
- */
- /* $Header$ */
- #if !defined(_SIGNAL_H)
- #define _SIGNAL_H
- typedef int sig_atomic_t;
- #if defined(_POSIX_SOURCE)
- #if defined(_MINIX)
- typedef unsigned short sigset_t;
- #define SIG_BLOCK 0 /* for blocking signals */
- #define SIG_UNBLOCK 1 /* for unblocking signals */
- #define SIG_SETMASK 2 /* for setting the signal mask */
- struct sigaction {
- void (*sa_handler)(int);/* SIG_DFL, SIG_IGN or pointer to function */
- sigset_t sa_mask; /* signals blocked during handling */
- int sa_flags; /* special flags */
- };
- #endif
- #endif
- #define SIG_ERR ((void (*)(int))-1)
- #if defined(__em22) || defined(__em24) || defined(__em44)
- #define SIG_DFL ((void (*)(int))-2)
- #define SIG_IGN ((void (*)(int))-3)
- #else
- #define SIG_DFL ((void (*)(int))0)
- #define SIG_IGN ((void (*)(int))1)
- #endif /* no interpretation */
- #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 */
- #if defined(__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
- #elif defined(_MINIX)
- /* The following signals are defined but not supported */
- #define SIGCHLD 17 /* child process terminated or stopped */
- #define SIGCONT 18 /* continue if stopped */
- #define SIGSTOP 19 /* stop signal */
- #define SIGTSTP 20 /* interactive stop signal */
- #define SIGTTIN 21 /* background process wants to read */
- #define SIGTTOU 22 /* background process wants to write */
- #define _NSIG 16
- #else
- #define _NSIG 16
- #endif /* __USG or __BSD4_2 */
- void (*signal(int _sig, void (*_func)(int)))(int);
- int raise(int _sig);
- #endif /* _SIGNAL_H */
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