scsh-0.5/scsh/bsd/signals.scm

73 lines
1.8 KiB
Scheme

;;; Signal constant definitions for BSD4.4-Lite
;;; Copyright (c) 1994 by Olin Shivers.
;;; Copyright (c) 1994 by Brian D. Carlstrom.
(define-enum-constants signal
;; POSIX
(hup 1) ; hangup
(int 2) ; interrupt
(quit 3) ; quit
(ill 4) ; illegal instruction (not reset when caught)
;; BSD4.4-Lite
(trap 5) ; trace trap (not reset when caught)
;; POSIX
(iot 6) ; IOT instruction
(abrt 6) ; used by abort, replace SIGIOT in the future
;; BSD4.4-Lite
(emt 7) ; EMT instruction
;; POSIX
(fpe 8) ; floating point exception
(kill 9) ; kill (cannot be caught or ignored)
;; BSD4.4-Lite
(bus 10) ; bus error
;; POSIX
(segv 11) ; segmentation violation
;; BSD4.4-Lite
(sys 12) ; bad argument to system call
;; POSIX
(pipe 13) ; write on a pipe with no one to read it
(alrm 14) ; alarm clock
(term 15) ; software termination signal from kill
;; BSD4.4-Lite
(urg 16) ; urgent condition on IO channel
;; POSIX
(stop 17) ; sendable stop signal not from tty
(tstp 18) ; stop signal from tty
(cont 19) ; continue a stopped process
(chld 20) ; to parent on child stop or exit
;; BSD4.4-Lite
(cld 20) ; System V name for SIGCHLD
;; POSIX
(ttin 21) ; to readers pgrp upon background tty read
(ttou 22) ; like TTIN for output if (tp->t_local&LTOSTOP)
;; BSD4.4-Lite
(io 23) ; input/output possible signal
(xcpu 24) ; exceeded CPU time limit
(xfsz 25) ; exceeded file size limit
(vtalrm 26) ; virtual time alarm
(prof 27) ; profiling time alarm
(winch 28) ; window changed
(info 29) ; information request
;; User defined
(usr1 30) ; user defined signal 1
(usr2 31) ; user defined signal 2
)
(define signals-ignored-by-default
(list signal/chld signal/cont ; These are Posix.
signal/info signal/io signal/urg signal/winch)) ; These are BSD.