Attached is a patch against SLIME CVS HEAD to implement multi-threading (aka the :spawn *COMMUNICATION-STYLE*) as a default in ABCL. In addition this patch muffles various STYLE-WARNING compilation messages via DECLARE forms.

Among other things, this seems to fix the fugliness around where *STANDARD-OUTPUT* ends up and the missing CR (or LF) in the NIL *COMMUNICATION-STYLE*.

This patch has been tested against ABCL 0.16.0-dev as of [svn r12022] with Emacs 22.3 under OS X.

I didn't need to do much to the existing code except fix a typo while comparing against the current 'swank-sbcl.lisp' version, making me somewhat suspicious of why that code was not used in the first place (did someone just cut and paste the SBCL implementation without trying to get it to work? But thanks to whoever got it that far!)

--

"A screaming comes across the sky. It has happened before, but there is nothing to compare to it now."

diff -r 2225a8f2d322 -r 3c562ce589df swank-abcl.lisp --- a/swank-abcl.lisp Wed Jul 01 05:38:54 2009 +0200 +++ b/swank-abcl.lisp Wed Jul 01 11:06:42 2009 +0200 @@ -17,6 +17,7 @@ (defun sys::break (&optional (format-control "BREAK called") &rest format-arguments) (let ((*saved-backtrace* (backtrace-as-list-ignoring-swank-calls))) + (declare (ignore *saved-backtrace*)) (with-simple-restart (continue "Return from BREAK.") (invoke-debugger (sys::%make-condition 'simple-condition @@ -42,10 +43,16 @@

;(defun class-finalized-p (class) t)

-(defun slot-definition-documentation (slot) #+nil (documentation slot 't)) -(defun slot-definition-type (slot) t) -(defun class-prototype (class)) -(defun generic-function-declarations (gf)) +(defun slot-definition-documentation (slot) + (declare (ignore slot)) + #+nil (documentation slot 't)) +(defun slot-definition-type (slot) + (declare (ignore slot)) + t) +(defun class-prototype (class) + (declare (ignore class))) +(defun generic-function-declarations (gf) + (declare (ignore gf))) (defun specializer-direct-methods (spec) (mop::class-direct-methods spec))

(defun slot-definition-name (slot) @@ -61,9 +68,11 @@ (mop::%method-function method))

(defun slot-boundp-using-class (class object slotdef) + (declare (ignore class)) ; FIXME (system::slot-boundp object (slot-definition-name slotdef)))

(defun slot-value-using-class (class object slotdef) + (declare (ignore class)) ; FIXME (system::slot-value object (slot-definition-name slotdef)))

(import-to-swank-mop @@ -119,7 +128,7 @@

(defimplementation preferred-communication-style () - nil) + :spawn)

(defimplementation create-socket (host port) (ext:make-server-socket port)) @@ -483,8 +492,8 @@

;;;; Multithreading

-(defimplementation startup-multiprocessing () - #+nil(mp:start-scheduler)) +#+nil ; Already started +(defimplementation startup-multiprocessing (continuation))

(defimplementation spawn (fn &key name) (ext:make-thread (lambda () (funcall fn)) :name name)) @@ -513,7 +522,23 @@ (defimplementation thread-status (thread) (format nil "Thread is ~:[dead~;alive~]" (ext:thread-alive-p thread)))

+;; XXX should be a weak hash table +(defparameter *thread-description-map* (make-hash-table)) + +(defvar *thread-description-map-lock* + (ext:make-mutex)) + +(defimplementation thread-description (thread) + (ext:with-mutex (*thread-description-map-lock*) + (or (gethash thread *thread-description-map*) + "No description available."))) + +(defimplementation set-thread-description (thread description) + (ext:with-mutex (*thread-description-map-lock*) + (setf (gethash thread *thread-description-map*) description))) + (defimplementation make-lock (&key name) + (declare (ignore name)) (ext:make-thread-lock))

(defimplementation call-with-lock-held (lock function) @@ -525,8 +550,11 @@ (defimplementation all-threads () (copy-list (ext:mapcar-threads #'identity)))

+(defimplementation thread-alive-p (thread) + (member thread (all-threads))) + (defimplementation interrupt-thread (thread fn) - (ext:interrupt-thread thread fn)) + (ext:interrupt-thread thread fn))

(defimplementation kill-thread (thread) (ext:destroy-thread thread)) @@ -542,14 +570,13 @@ (setf (getf (gethash thread *thread-props*) 'mailbox) (make-mailbox)))))

-(defimplementation send (thread object) +(defimplementation send (thread message) (let ((mbox (mailbox thread))) (ext:with-mutex ((mailbox-mutex mbox)) (setf (mailbox-queue mbox) (nconc (mailbox-queue mbox) (list message))))))

-#+(or) -(defimplementation receive-if (thread &optional timeout) +(defimplementation receive-if (test &optional timeout) (let* ((mbox (mailbox (current-thread)))) (assert (or (not timeout) (eq timeout t))) (loop @@ -561,9 +588,7 @@ (setf (mailbox-queue mbox) (nconc (ldiff q tail) (cdr tail))) (return (car tail)))) (when (eq timeout t) (return (values nil t))) - ;;(java:jcall (java:jmethod "java.lang.Object" "wait") - ;; (mailbox-mutex mbox) 1000) - )))) + (sleep .05)))))

(defimplementation quit-lisp () (ext:exit))