\f
;;;; system calls that deal with signals
+;;; Send the signal SIGNAL to the process with process id PID. SIGNAL
+;;; should be a valid signal number
#!-sb-fluid (declaim (inline real-unix-kill))
-(sb!alien:define-alien-routine ("kill" real-unix-kill) sb!alien:int
+(sb!alien:define-alien-routine ("kill" unix-kill) sb!alien:int
(pid sb!alien:int)
(signal sb!alien:int))
-;;; Send the signal SIGNAL to the process with process id PID. SIGNAL
-;;; should be a valid signal number
-(defun unix-kill (pid signal)
- (real-unix-kill pid signal))
-
+;;; Send the signal SIGNAL to the all the process in process group
+;;; PGRP. SIGNAL should be a valid signal number
#!-sb-fluid (declaim (inline real-unix-killpg))
-(sb!alien:define-alien-routine ("killpg" real-unix-killpg) sb!alien:int
+(sb!alien:define-alien-routine ("killpg" unix-killpg) sb!alien:int
(pgrp sb!alien:int)
(signal sb!alien:int))
-;;; Send the signal SIGNAL to the all the process in process group
-;;; PGRP. SIGNAL should be a valid signal number
-(defun unix-killpg (pgrp signal)
- (real-unix-killpg pgrp signal))
-
-;;; Set the current set of masked signals (those being blocked from
+;;; Reset the current set of masked signals (those being blocked from
;;; delivery).
;;;
-;;; (Note: CMU CL had a SIGMASK operator to create masks, but since
-;;; SBCL only uses 0, we no longer support it. If you need it, you
-;;; can pull it out of the CMU CL sources, or the old SBCL sources;
-;;; but you might also consider doing things the SBCL way and moving
-;;; this kind of C-level work down to C wrapper functions.)
-#!-sunos
-(sb!alien:define-alien-routine ("sigsetmask" unix-sigsetmask)
- sb!alien:unsigned-long
- (mask sb!alien:unsigned-long))
+;;; (Note: CMU CL had a more general SIGSETMASK call and a SIGMASK
+;;; operator to create masks, but since we only ever reset to 0, we no
+;;; longer support it. If you need it, you can pull it out of the CMU
+;;; CL sources, or the old SBCL sources; but you might also consider
+;;; doing things the SBCL way and moving this kind of C-level work
+;;; down to C wrapper functions.)
+
+;;; When inappropriate build options are used, this also prints messages
+;;; listing the signals that were masked
+(sb!alien:define-alien-routine "reset_signal_mask" sb!alien:void)
\f
;;;; C routines that actually do all the work of establishing signal handlers
(sb!alien:define-alien-routine ("install_handler" install-handler)
sb!alien:unsigned-long
(signal sb!alien:int)
(handler sb!alien:unsigned-long))
-;;; assert (though non-fatally) that there are no signals masked
-(sb!alien:define-alien-routine "warn_when_signals_masked" sb!alien:void)
-
-\f
-
-
;;;; interface to enabling and disabling signal handlers
(defun enable-interrupt (signal handler)
(declare (type (or function fixnum (member :default :ignore)) handler))
+ (/show0 "enable-interrupt")
(without-gcing
(let ((result (install-handler signal
(case handler
`(defun ,name (signal info context)
(declare (ignore signal info))
(declare (type system-area-pointer context))
- (/show "in Lisp-level signal handler" (sap-int context))
+ (/show "in Lisp-level signal handler" ,(symbol-name name) (sap-int context))
(,function ,(concatenate 'simple-string what " at #X~X")
(with-alien ((context (* os-context-t) context))
(sap-int (sb!vm:context-pc context)))))))