(defvar *sysinit-pathname-function* #'sysinit-pathname
#!+sb-doc
- "Designator for a function of zero arguments called to obtain a pathname
-designator for the default sysinit file, or NIL. If the function returns NIL,
-no sysinit file is used unless one has been specified on the command-line.")
+ "Designator for a function of zero arguments called to obtain a
+pathname designator for the default sysinit file, or NIL. If the
+function returns NIL, no sysinit file is used unless one has been
+specified on the command-line.")
(defvar *userinit-pathname-function* #'userinit-pathname
#!+sb-doc
- "Designator for a function of zero arguments called to obtain a pathname
-designator or a stream for the default userinit file, or NIL. If the function
-returns NIL, no userinit file is used unless one has been specified on the
-command-line.")
+ "Designator for a function of zero arguments called to obtain a
+pathname designator or a stream for the default userinit file, or NIL.
+If the function returns NIL, no userinit file is used unless one has
+been specified on the command-line.")
\f
;;;; miscellaneous utilities for working with with TOPLEVEL
;;; by QUIT) is caught and any final processing and return codes are
;;; handled appropriately.
(defmacro handling-end-of-the-world (&body body)
- (with-unique-names (caught)
- `(without-interrupts
- (let ((,caught
- (catch '%end-of-the-world
- (unwind-protect
- (with-local-interrupts ,@body (quit))
- (handler-case
- (with-local-interrupts
- (call-hooks "exit" *exit-hooks* :on-error :warn))
- (serious-condition ()
- 1))))))
- ;; If user called QUIT and exit hooks were OK, the status is what it
- ;; is -- even eg. streams cannot be flushed anymore. Even if
- ;; something goes wrong now, we still report what was asked. We still
- ;; want to have %END-OF-THE-WORLD visible, though.
- (catch '%end-of-the-world
- (handler-case
- (unwind-protect
- (progn
- (flush-standard-output-streams)
- (sb!thread::terminate-session))
- (sb!unix:unix-exit ,caught))
- (serious-condition ())))))))
+ `(without-interrupts
+ (catch '%end-of-the-world
+ (unwind-protect
+ (with-local-interrupts
+ (unwind-protect
+ (progn ,@body)
+ (call-exit-hooks)))
+ (%exit)))))
+
+(defvar *exit-lock*)
+(defvar *exit-in-process* nil)
+(declaim (type (or null real) *exit-timeout*))
+(defvar *exit-timeout* 60
+ "Default amount of seconds, if any, EXIT should wait for other
+threads to finish after terminating them. Default value is 60. NIL
+means to wait indefinitely.")
+
+(defun os-exit-handler (condition)
+ (declare (ignore condition))
+ (os-exit *exit-in-process* :abort t))
+
+(defvar *exit-error-handler* #'os-exit-handler)
+
+(defun call-exit-hooks ()
+ (unless *exit-in-process*
+ (setf *exit-in-process* 0))
+ (handler-bind ((serious-condition *exit-error-handler*))
+ (call-hooks "exit" *exit-hooks* :on-error :warn)))
+
+(defun %exit ()
+ ;; If anything goes wrong, we will exit immediately and forcibly.
+ (handler-bind ((serious-condition *exit-error-handler*))
+ (let ((ok nil)
+ (code *exit-in-process*))
+ (if (consp code)
+ ;; Another thread called EXIT, and passed the buck to us -- only
+ ;; final call left to do.
+ (os-exit (car code) :abort nil)
+ (unwind-protect
+ (progn
+ (flush-standard-output-streams)
+ (sb!thread::%exit-other-threads)
+ (setf ok t))
+ (os-exit code :abort (not ok)))))))
\f
;;;; working with *CURRENT-ERROR-DEPTH* and *MAXIMUM-ERROR-DEPTH*
;;; Flush anything waiting on one of the ANSI Common Lisp standard
;;; output streams before proceeding.
(defun flush-standard-output-streams ()
- (dolist (name '(*debug-io*
- *error-output*
- *query-io*
- *standard-output*
- *trace-output*
- *terminal-io*))
- ;; FINISH-OUTPUT may block more easily than FORCE-OUTPUT
- (force-output (symbol-value name)))
+ (let ((null (make-broadcast-stream)))
+ (dolist (name '(*debug-io*
+ *error-output*
+ *query-io*
+ *standard-output*
+ *trace-output*
+ *terminal-io*))
+ ;; 0. Pull out the underlying stream, so we know what it is.
+ ;; 1. Handle errors on it. We're doing this on entry to
+ ;; debugger, so we don't want recursive errors here.
+ ;; 2. Rebind the stream symbol in case some poor sod sees
+ ;; a broken stream here while running with *BREAK-ON-ERRORS*.
+ (let ((stream (stream-output-stream (symbol-value name))))
+ (progv (list name) (list null)
+ (handler-bind ((stream-error
+ (lambda (c)
+ (when (eq stream (stream-error-stream c))
+ (go :next)))))
+ (force-output stream))))
+ :next))
(values))
+(defun stream-output-stream (stream)
+ (typecase stream
+ (fd-stream
+ stream)
+ (synonym-stream
+ (stream-output-stream
+ (symbol-value (synonym-stream-symbol stream))))
+ (two-way-stream
+ (stream-output-stream
+ (two-way-stream-output-stream stream)))
+ (t
+ stream)))
+
(defun process-init-file (specified-pathname kind)
(multiple-value-bind (context default-function)
(ecase kind
(:load
(with-simple-restart (continue "Ignore runtime option --load ~S."
value)
- (load (native-pathname value))))))
+ (load (native-pathname value))))
+ (:quit
+ (exit))))
(flush-standard-output-streams)))
(with-simple-restart (abort "Skip rest of --eval and --load options.")
(dolist (option options)
(process-1 option)))))
(defun process-script (script)
- (let ((pathname (native-pathname script)))
+ (flet ((load-script (stream)
+ ;; Scripts don't need to be stylish or fast, but silence is usually a
+ ;; desirable quality...
+ (handler-bind (((or style-warning compiler-note) #'muffle-warning)
+ (stream-error (lambda (e)
+ ;; Shell-style.
+ (when (member (stream-error-stream e)
+ (list *stdout* *stdin* *stderr*))
+ (exit)))))
+ ;; Let's not use the *TTY* for scripts, ok? Also, normally we use
+ ;; synonym streams, but in order to have the broken pipe/eof error
+ ;; handling right we want to bind them for scripts.
+ (let ((*terminal-io* (make-two-way-stream *stdin* *stdout*))
+ (*debug-io* (make-two-way-stream *stdin* *stderr*))
+ (*standard-input* *stdin*)
+ (*standard-output* *stdout*)
+ (*error-output* *stderr*))
+ (load stream :verbose nil :print nil)))))
(handling-end-of-the-world
- (with-open-file (f pathname :element-type :default)
- (sb!fasl::maybe-skip-shebang-line f)
- ;; Scripts don't need to be stylish or fast, but silence is usually a
- ;; desirable quality...
- (handler-bind (((or style-warning compiler-note) #'muffle-warning))
- (load f :verbose nil :print nil))))))
-
-;; Errors while processing the command line cause the system to QUIT,
+ (if (eq t script)
+ (load-script *stdin*)
+ (with-open-file (f (native-pathname script) :element-type :default)
+ (sb!fasl::maybe-skip-shebang-line f)
+ (load-script f))))))
+
+;; Errors while processing the command line cause the system to EXIT,
;; instead of trying to go into the Lisp debugger, because trying to
;; go into the Lisp debugger would get into various annoying issues of
;; where we should go after the user tries to return from the
"fatal error before reaching READ-EVAL-PRINT loop: ~% ~?~%"
control-string
args)
- (quit :unix-status 1))
+ (exit :code 1))
;;; the default system top level function
(defun toplevel-init ()
(noprint nil)
;; Has a --script option been seen?
(script nil)
+ ;; Quit after processing other options?
+ (finally-quit nil)
;; everything in *POSIX-ARGV* except for argv[0]=programname
(options (rest *posix-argv*)))
(setf disable-debugger t
no-userinit t
no-sysinit t
- script (pop-option))
+ script (if options (pop-option) t))
(return))
((string= option "--sysinit")
(pop-option)
((string= option "--disable-debugger")
(pop-option)
(setf disable-debugger t))
+ ((string= option "--quit")
+ (pop-option)
+ (setf finally-quit t))
+ ((string= option "--non-interactive")
+ ;; This option is short for --quit and --disable-debugger,
+ ;; which are needed in combination for reliable non-
+ ;; interactive startup.
+ (pop-option)
+ (setf finally-quit t)
+ (setf disable-debugger t))
((string= option "--end-toplevel-options")
(pop-option)
(return))
(process-init-file sysinit :system))
(unless no-userinit
(process-init-file userinit :user))
+ (when finally-quit
+ (push (list :quit) reversed-options))
(process-eval/load-options (nreverse reversed-options))
(when script
(process-script script)
s))
(/show0 "CONTINUEing from pre-REPL RESTART-CASE")
(values)) ; (no-op, just fall through)
- (quit ()
- :report "Quit SBCL (calling #'QUIT, killing the process)."
+ (exit ()
+ :report "Exit SBCL (calling #'EXIT, killing the process)."
:test (lambda (c) (declare (ignore c)) (not script))
- (/show0 "falling through to QUIT from pre-REPL RESTART-CASE")
- (quit :unix-status 1))))
+ (/show0 "falling through to EXIT from pre-REPL RESTART-CASE")
+ (exit :code 1))))
;; one more time for good measure, in case we fell out of the
;; RESTART-CASE above before one of the flushes in the ordinary
(let* ((eof-marker (cons nil nil))
(form (read in nil eof-marker)))
(if (eq form eof-marker)
- (quit)
+ (exit)
form)))
(defun repl-fun (noprint)
projects / sbcl.git / blobdiff