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;;;; -*- indent-tabs-mode: nil -*-
;;;
;;; swank-clasp.lisp --- SLIME backend for CLASP.
;;;
;;; This code has been placed in the Public Domain. All warranties
;;; are disclaimed.
;;;
;;; Administrivia
(defpackage swank/clasp
(:use cl swank/backend))
(in-package swank/clasp)
#+(or)
(eval-when (:compile-toplevel :load-toplevel :execute)
(setq swank::*log-output* (open "/tmp/slime.log" :direction :output))
(setq swank:*log-events* t))
(defmacro slime-dbg (fmt &rest args)
`(swank::log-event "slime-dbg ~a ~a~%" mp:*current-process* (apply #'format nil ,fmt ,args)))
;; Hard dependencies.
(eval-when (:compile-toplevel :load-toplevel :execute)
(require 'sockets))
;; Soft dependencies.
(eval-when (:compile-toplevel :load-toplevel :execute)
(when (probe-file "sys:profile.fas")
(require :profile)
(pushnew :profile *features*))
(when (probe-file "sys:serve-event")
(require :serve-event)
(pushnew :serve-event *features*)))
(declaim (optimize (debug 3)))
;;; Swank-mop
(eval-when (:compile-toplevel :load-toplevel :execute)
(import-swank-mop-symbols :clos nil))
(defimplementation gray-package-name ()
"GRAY")
;;;; TCP Server
(defimplementation preferred-communication-style ()
:spawn
#| #+threads :spawn
#-threads nil
|#
)
(defun resolve-hostname (name)
(car (sb-bsd-sockets:host-ent-addresses
(sb-bsd-sockets:get-host-by-name name))))
(defimplementation create-socket (host port &key backlog)
(let ((socket (make-instance 'sb-bsd-sockets:inet-socket
:type :stream
:protocol :tcp)))
(setf (sb-bsd-sockets:sockopt-reuse-address socket) t)
(sb-bsd-sockets:socket-bind socket (resolve-hostname host) port)
(sb-bsd-sockets:socket-listen socket (or backlog 5))
socket))
(defimplementation local-port (socket)
(nth-value 1 (sb-bsd-sockets:socket-name socket)))
(defimplementation close-socket (socket)
(sb-bsd-sockets:socket-close socket))
(defimplementation accept-connection (socket
&key external-format
buffering timeout)
(declare (ignore timeout))
(sb-bsd-sockets:socket-make-stream (accept socket)
:output t
:input t
:buffering (ecase buffering
((t) :full)
((nil) :none)
(:line :line))
:element-type (if external-format
'character
'(unsigned-byte 8))
:external-format external-format))
(defun accept (socket)
"Like socket-accept, but retry on EAGAIN."
(loop (handler-case
(return (sb-bsd-sockets:socket-accept socket))
(sb-bsd-sockets:interrupted-error ()))))
(defimplementation socket-fd (socket)
(etypecase socket
(fixnum socket)
(two-way-stream (socket-fd (two-way-stream-input-stream socket)))
(sb-bsd-sockets:socket (sb-bsd-sockets:socket-file-descriptor socket))
(file-stream (si:file-stream-fd socket))))
(defvar *external-format-to-coding-system*
'((:latin-1
"latin-1" "latin-1-unix" "iso-latin-1-unix"
"iso-8859-1" "iso-8859-1-unix")
(:utf-8 "utf-8" "utf-8-unix")))
(defun external-format (coding-system)
(or (car (rassoc-if (lambda (x) (member coding-system x :test #'equal))
*external-format-to-coding-system*))
(find coding-system (ext:all-encodings) :test #'string-equal)))
(defimplementation find-external-format (coding-system)
#+unicode (external-format coding-system)
;; Without unicode support, CLASP uses the one-byte encoding of the
;; underlying OS, and will barf on anything except :DEFAULT. We
;; return NIL here for known multibyte encodings, so
;; SWANK:CREATE-SERVER will barf.
#-unicode (let ((xf (external-format coding-system)))
(if (member xf '(:utf-8))
nil
:default)))
;;;; Unix Integration
;;; If CLASP is built with thread support, it'll spawn a helper thread
;;; executing the SIGINT handler. We do not want to BREAK into that
;;; helper but into the main thread, though. This is coupled with the
;;; current choice of NIL as communication-style in so far as CLASP's
;;; main-thread is also the Slime's REPL thread.
#+clasp-working
(defimplementation call-with-user-break-handler (real-handler function)
(let ((old-handler #'si:terminal-interrupt))
(setf (symbol-function 'si:terminal-interrupt)
(make-interrupt-handler real-handler))
(unwind-protect (funcall function)
(setf (symbol-function 'si:terminal-interrupt) old-handler))))
#+threads
(defun make-interrupt-handler (real-handler)
(let ((main-thread (find 'si:top-level (mp:all-processes)
:key #'mp:process-name)))
#'(lambda (&rest args)
(declare (ignore args))
(mp:interrupt-process main-thread real-handler))))
#-threads
(defun make-interrupt-handler (real-handler)
#'(lambda (&rest args)
(declare (ignore args))
(funcall real-handler)))
(defimplementation getpid ()
(si:getpid))
(defimplementation set-default-directory (directory)
(ext:chdir (namestring directory)) ; adapts *DEFAULT-PATHNAME-DEFAULTS*.
(default-directory))
(defimplementation default-directory ()
(namestring (ext:getcwd)))
(defimplementation quit-lisp ()
(core:quit))
;;; Instead of busy waiting with communication-style NIL, use select()
;;; on the sockets' streams.
#+serve-event
(progn
(defun poll-streams (streams timeout)
(let* ((serve-event::*descriptor-handlers*
(copy-list serve-event::*descriptor-handlers*))
(active-fds '())
(fd-stream-alist
(loop for s in streams
for fd = (socket-fd s)
collect (cons fd s)
do (serve-event:add-fd-handler fd :input
#'(lambda (fd)
(push fd active-fds))))))
(serve-event:serve-event timeout)
(loop for fd in active-fds collect (cdr (assoc fd fd-stream-alist)))))
(defimplementation wait-for-input (streams &optional timeout)
(assert (member timeout '(nil t)))
(loop
(cond ((check-slime-interrupts) (return :interrupt))
(timeout (return (poll-streams streams 0)))
(t
(when-let (ready (poll-streams streams 0.2))
(return ready))))))
) ; #+serve-event (progn ...
#-serve-event
(defimplementation wait-for-input (streams &optional timeout)
(assert (member timeout '(nil t)))
(loop
(cond ((check-slime-interrupts) (return :interrupt))
(timeout (return (remove-if-not #'listen streams)))
(t
(let ((ready (remove-if-not #'listen streams)))
(if ready (return ready))
(sleep 0.1))))))
;;;; Compilation
(defvar *buffer-name* nil)
(defvar *buffer-start-position*)
(defun condition-severity (condition)
(etypecase condition
(cmp:redefined-function-warning :redefinition)
(style-warning :style-warning)
(warning :warning)
(reader-error :read-error)
(error :error)))
(defun condition-location (origin)
(if (null origin)
(make-error-location "No error location available")
(let ((location (core:source-pos-info-filepos origin)))
(if *buffer-name*
(make-buffer-location *buffer-name*
*buffer-start-position*
location)
(make-file-location
(core:file-scope-pathname
(core:file-scope origin))
location)))))
(defun signal-compiler-condition (condition origin)
(signal 'compiler-condition
:original-condition condition
:severity (condition-severity condition)
:message (princ-to-string condition)
:location (condition-location origin)))
(defun handle-compiler-condition (condition)
;; First resignal warnings, so that outer handlers - which may choose to
;; muffle this - get a chance to run.
(when (typep condition 'warning)
(signal condition))
(signal-compiler-condition (cmp:deencapsulate-compiler-condition condition)
(cmp:compiler-condition-origin condition)))
(defimplementation call-with-compilation-hooks (function)
(handler-bind
(((or error warning) #'handle-compiler-condition))
(funcall function)))
(defimplementation swank-compile-file (input-file output-file
load-p external-format
&key policy)
(declare (ignore policy))
(format t "Compiling file input-file = ~a output-file = ~a~%" input-file output-file)
;; Ignore the output-file and generate our own
(let ((tmp-output-file (compile-file-pathname (si:mkstemp "TMP:clasp-swank-compile-file-"))))
(format t "Using tmp-output-file: ~a~%" tmp-output-file)
(multiple-value-bind (fasl warnings-p failure-p)
(with-compilation-hooks ()
(compile-file input-file :output-file tmp-output-file
:external-format external-format))
(values fasl warnings-p
(or failure-p
(when load-p
(not (load fasl))))))))
(defvar *tmpfile-map* (make-hash-table :test #'equal))
(defun note-buffer-tmpfile (tmp-file buffer-name)
;; EXT:COMPILED-FUNCTION-FILE below will return a namestring.
(let ((tmp-namestring (namestring (truename tmp-file))))
(setf (gethash tmp-namestring *tmpfile-map*) buffer-name)
tmp-namestring))
(defun tmpfile-to-buffer (tmp-file)
(gethash tmp-file *tmpfile-map*))
(defimplementation swank-compile-string (string &key buffer position filename policy)
(declare (ignore policy))
(with-compilation-hooks ()
(let ((*buffer-name* buffer) ; for compilation hooks
(*buffer-start-position* position))
(let ((tmp-file (si:mkstemp "TMP:clasp-swank-tmpfile-"))
(fasl-file)
(warnings-p)
(failure-p))
(unwind-protect
(with-open-file (tmp-stream tmp-file :direction :output
:if-exists :supersede)
(write-string string tmp-stream)
(finish-output tmp-stream)
(multiple-value-setq (fasl-file warnings-p failure-p)
(let ((truename (or filename (note-buffer-tmpfile tmp-file buffer))))
(compile-file tmp-file
:source-debug-pathname (pathname truename)
:source-debug-offset (1- position)))))
(when fasl-file (load fasl-file))
(when (probe-file tmp-file)
(delete-file tmp-file))
(when fasl-file
(delete-file fasl-file)))
(not failure-p)))))
;;;; Documentation
(defimplementation arglist (name)
(multiple-value-bind (arglist foundp)
(core:function-lambda-list name) ;; Uses bc-split
(if foundp arglist :not-available)))
(defimplementation function-name (f)
(typecase f
(generic-function (clos::generic-function-name f))
(function (ext:compiled-function-name f))))
;; FIXME
(defimplementation macroexpand-all (form &optional env)
(declare (ignore env))
(macroexpand form))
;;; modified from sbcl.lisp
(defimplementation collect-macro-forms (form &optional environment)
(let ((macro-forms '())
(compiler-macro-forms '())
(function-quoted-forms '()))
(format t "In collect-macro-forms~%")
(cmp:code-walk
form environment
:code-walker-function
(lambda (form environment)
(when (and (consp form)
(symbolp (car form)))
(cond ((eq (car form) 'function)
(push (cadr form) function-quoted-forms))
((member form function-quoted-forms)
nil)
((macro-function (car form) environment)
(push form macro-forms))
((not (eq form (core:compiler-macroexpand-1 form environment)))
(push form compiler-macro-forms))))
form))
(values macro-forms compiler-macro-forms)))
(defimplementation describe-symbol-for-emacs (symbol)
(let ((result '()))
(flet ((frob (type boundp)
(when (funcall boundp symbol)
(let ((doc (describe-definition symbol type)))
(setf result (list* type doc result))))))
(frob :VARIABLE #'boundp)
(frob :FUNCTION #'fboundp)
(frob :CLASS (lambda (x) (find-class x nil))))
result))
(defimplementation describe-definition (name type)
(case type
(:variable (documentation name 'variable))
(:function (documentation name 'function))
(:class (documentation name 'class))
(t nil)))
(defimplementation type-specifier-p (symbol)
(or (subtypep nil symbol)
(not (eq (type-specifier-arglist symbol) :not-available))))
;;; Debugging
(eval-when (:compile-toplevel :load-toplevel :execute)
(import
'(si::*break-env*
si::*ihs-top*
si::*ihs-current*
si::*ihs-base*
#+frs si::*frs-base*
#+frs si::*frs-top*
si::*tpl-commands*
si::*tpl-level*
#+frs si::frs-top
si::ihs-top
si::ihs-fun
si::ihs-env
#+frs si::sch-frs-base
si::set-break-env
si::set-current-ihs
si::tpl-commands)))
(defun make-invoke-debugger-hook (hook)
(when hook
#'(lambda (condition old-hook)
;; Regard *debugger-hook* if set by user.
(if *debugger-hook*
nil ; decline, *DEBUGGER-HOOK* will be tried next.
(funcall hook condition old-hook)))))
(defimplementation install-debugger-globally (function)
(setq *debugger-hook* function)
(setq ext:*invoke-debugger-hook* (make-invoke-debugger-hook function))
)
(defimplementation call-with-debugger-hook (hook fun)
(let ((*debugger-hook* hook)
(ext:*invoke-debugger-hook* (make-invoke-debugger-hook hook)))
(funcall fun))
)
(defvar *backtrace* '())
;;; Commented out; it's not clear this is a good way of doing it. In
;;; particular because it makes errors stemming from this file harder
;;; to debug, and given the "young" age of CLASP's swank backend, that's
;;; a bad idea.
;; (defun in-swank-package-p (x)
;; (and
;; (symbolp x)
;; (member (symbol-package x)
;; (list #.(find-package :swank)
;; #.(find-package :swank/backend)
;; #.(ignore-errors (find-package :swank-mop))
;; #.(ignore-errors (find-package :swank-loader))))
;; t))
;; (defun is-swank-source-p (name)
;; (setf name (pathname name))
;; (pathname-match-p
;; name
;; (make-pathname :defaults swank-loader::*source-directory*
;; :name (pathname-name name)
;; :type (pathname-type name)
;; :version (pathname-version name))))
;; (defun is-ignorable-fun-p (x)
;; (or
;; (in-swank-package-p (frame-name x))
;; (multiple-value-bind (file position)
;; (ignore-errors (si::bc-file (car x)))
;; (declare (ignore position))
;; (if file (is-swank-source-p file)))))
(defimplementation call-with-debugging-environment (debugger-loop-fn)
(declare (type function debugger-loop-fn))
(let* ((*ihs-top* 0)
(*ihs-current* *ihs-top*)
#+frs (*frs-base* (or (sch-frs-base *frs-top* *ihs-base*) (1+ (frs-top))))
#+frs (*frs-top* (frs-top))
(*tpl-level* (1+ *tpl-level*)))
(core:call-with-backtrace
(lambda (raw-backtrace)
(let ((*backtrace*
(let ((backtrace (core::common-lisp-backtrace-frames
raw-backtrace
:gather-start-trigger
(lambda (frame)
(let ((function-name (core::backtrace-frame-function-name frame)))
(and (symbolp function-name)
(eq function-name 'core::universal-error-handler))))
:gather-all-frames nil)))
(unless backtrace
(setq backtrace (core::common-lisp-backtrace-frames
:gather-all-frames nil)))
backtrace)))
(declare (special *ihs-current*))
(set-break-env)
(set-current-ihs)
(let ((*ihs-base* *ihs-top*))
(funcall debugger-loop-fn)))))))
(defimplementation compute-backtrace (start end)
(subseq *backtrace* start
(and (numberp end)
(min end (length *backtrace*)))))
(defun frame-name (frame)
(let ((x (core::backtrace-frame-function-name frame)))
(if (symbolp x)
x
(function-name x))))
(defun frame-function (frame-number)
(let ((x (core::backtrace-frame-function-name (elt *backtrace* frame-number))))
(etypecase x
(symbol
(and (fboundp x)
(fdefinition x)))
(cons
(if (eq (car x) 'cl:setf)
(fdefinition x)
nil))
(function
x))))
(defimplementation print-frame (frame stream)
(if (core::backtrace-frame-arguments frame)
(format stream "(~a~{ ~s~})" (core::backtrace-frame-print-name frame)
(coerce (core::backtrace-frame-arguments frame) 'list))
(format stream "~a" (core::backtrace-frame-print-name frame))))
(defimplementation frame-source-location (frame-number)
(let* ((address (core::backtrace-frame-return-address (elt *backtrace* frame-number)))
(code-source-location (ext::code-source-position address)))
(format t "code-source-location ~s~%" code-source-location)
;; (core::source-info-backtrace *backtrace*)
(make-location (list :file (namestring (ext::code-source-line-source-pathname code-source-location)))
(list :line (ext::code-source-line-line-number code-source-location))
'(:align t))))
#+clasp-working
(defimplementation frame-catch-tags (frame-number)
(third (elt *backtrace* frame-number)))
(defun ihs-frame-id (frame-number)
(- (core:ihs-top) frame-number))
(defimplementation frame-locals (frame-number)
(let* ((frame (elt *backtrace* frame-number))
(env nil) ; no env yet
(locals (loop for x = env then (core:get-parent-environment x)
while x
nconc (loop for name across (core:environment-debug-names x)
for value across (core:environment-debug-values x)
collect (list :name name :id 0 :value value)))))
(nconc
(loop for arg across (core::backtrace-frame-arguments frame)
for i from 0
collect (list :name (intern (format nil "ARG~d" i) :cl-user)
:id 0
:value arg))
locals)))
(defimplementation frame-var-value (frame-number var-number)
(let* ((frame (elt *backtrace* frame-number))
(env nil)
(args (core::backtrace-frame-arguments frame)))
(if (< var-number (length args))
(svref args var-number)
(elt (frame-locals frame-number) var-number))))
(defimplementation disassemble-frame (frame-number)
(let ((fun (frame-function frame-number)))
(disassemble fun)))
(defimplementation eval-in-frame (form frame-number)
(let* ((frame (elt *backtrace* frame-number))
(raw-arg-values (coerce (core::backtrace-frame-arguments frame) 'list)))
(if (and (= (length raw-arg-values) 2) (core:vaslistp (car raw-arg-values)))
(let* ((arg-values (core:list-from-va-list (car raw-arg-values)))
(bindings (append (loop for i from 0 for value in arg-values collect `(,(intern (core:bformat nil "ARG%d" i) :cl-user) ',value))
(list (list (intern "NEXT-METHODS" :cl-user) (cadr raw-arg-values))))))
(eval
`(let (,@bindings) ,form)))
(let* ((arg-values raw-arg-values)
(bindings (loop for i from 0 for value in arg-values collect `(,(intern (core:bformat nil "ARG%d" i) :cl-user) ',value))))
(eval
`(let (,@bindings) ,form))))))
#+clasp-working
(defimplementation gdb-initial-commands ()
;; These signals are used by the GC.
#+linux '("handle SIGPWR noprint nostop"
"handle SIGXCPU noprint nostop"))
#+clasp-working
(defimplementation command-line-args ()
(loop for n from 0 below (si:argc) collect (si:argv n)))
;;;; Inspector
;;; FIXME: Would be nice if it was possible to inspect objects
;;; implemented in C.
;;;; Definitions
(defun make-file-location (file file-position)
;; File positions in CL start at 0, but Emacs' buffer positions
;; start at 1. We specify (:ALIGN T) because the positions comming
;; from CLASP point at right after the toplevel form appearing before
;; the actual target toplevel form; (:ALIGN T) will DTRT in that case.
(make-location `(:file ,(namestring (translate-logical-pathname file)))
`(:position ,(1+ file-position))
`(:align t)))
(defun make-buffer-location (buffer-name start-position &optional (offset 0))
(make-location `(:buffer ,buffer-name)
`(:offset ,start-position ,offset)
`(:align t)))
(defun translate-location (location)
(make-location (list :file (namestring (ext:source-location-pathname location)))
(list :position (ext:source-location-offset location))
'(:align t)))
(defimplementation find-definitions (name)
(loop for kind in ext:*source-location-kinds*
for locations = (ext:source-location name kind)
when locations
nconc (loop for location in locations
collect (list kind (translate-location location)))))
(defun source-location (object)
(let ((location (ext:source-location object t)))
(when location
(translate-location (car location)))))
(defimplementation find-source-location (object)
(or (source-location object)
(make-error-location "Source definition of ~S not found." object)))
;;;; Profiling
#+profile
(progn
(defimplementation profile (fname)
(when fname (eval `(profile:profile ,fname))))
(defimplementation unprofile (fname)
(when fname (eval `(profile:unprofile ,fname))))
(defimplementation unprofile-all ()
(profile:unprofile-all)
"All functions unprofiled.")
(defimplementation profile-report ()
(profile:report))
(defimplementation profile-reset ()
(profile:reset)
"Reset profiling counters.")
(defimplementation profiled-functions ()
(profile:profile))
(defimplementation profile-package (package callers methods)
(declare (ignore callers methods))
(eval `(profile:profile ,(package-name (find-package package)))))
) ; #+profile (progn ...
;;;; Threads
#+threads
(progn
(defvar *thread-id-counter* 0)
(defparameter *thread-id-map* (make-hash-table))
(defvar *thread-id-map-lock*
(mp:make-lock :name "thread id map lock"))
(defimplementation spawn (fn &key name)
(mp:process-run-function name fn))
(defimplementation thread-id (target-thread)
(block thread-id
(mp:with-lock (*thread-id-map-lock*)
;; Does TARGET-THREAD have an id already?
(maphash (lambda (id thread-pointer)
(let ((thread (si:weak-pointer-value thread-pointer)))
(cond ((not thread)
(remhash id *thread-id-map*))
((eq thread target-thread)
(return-from thread-id id)))))
*thread-id-map*)
;; TARGET-THREAD not found in *THREAD-ID-MAP*
(let ((id (incf *thread-id-counter*))
(thread-pointer (si:make-weak-pointer target-thread)))
(setf (gethash id *thread-id-map*) thread-pointer)
id))))
(defimplementation find-thread (id)
(mp:with-lock (*thread-id-map-lock*)
(let* ((thread-ptr (gethash id *thread-id-map*))
(thread (and thread-ptr (si:weak-pointer-value thread-ptr))))
(unless thread
(remhash id *thread-id-map*))
thread)))
(defimplementation thread-name (thread)
(mp:process-name thread))
(defimplementation thread-status (thread)
(if (mp:process-active-p thread)
"RUNNING"
"STOPPED"))
(defimplementation make-lock (&key name)
(mp:make-lock :name name :recursive t))
(defimplementation call-with-lock-held (lock function)
(declare (type function function))
(mp:with-lock (lock) (funcall function)))
(defimplementation current-thread ()
mp:*current-process*)
(defimplementation all-threads ()
(mp:all-processes))
(defimplementation interrupt-thread (thread fn)
(mp:interrupt-process thread fn))
(defimplementation kill-thread (thread)
(mp:process-kill thread))
(defimplementation thread-alive-p (thread)
(mp:process-active-p thread))
(defvar *mailbox-lock* (mp:make-lock :name "mailbox lock"))
(defvar *mailboxes* (list))
(declaim (type list *mailboxes*))
(defstruct (mailbox (:conc-name mailbox.))
thread
(mutex (mp:make-lock :name "SLIMELCK"))
(cvar (mp:make-condition-variable))
(queue '() :type list))
(defun mailbox (thread)
"Return THREAD's mailbox."
(mp:with-lock (*mailbox-lock*)
(or (find thread *mailboxes* :key #'mailbox.thread)
(let ((mb (make-mailbox :thread thread)))
(push mb *mailboxes*)
mb))))
(defimplementation wake-thread (thread)
(let* ((mbox (mailbox thread))
(mutex (mailbox.mutex mbox)))
(format t "About to with-lock in wake-thread~%")
(mp:with-lock (mutex)
(format t "In wake-thread~%")
(mp:condition-variable-broadcast (mailbox.cvar mbox)))))
(defimplementation send (thread message)
(let* ((mbox (mailbox thread))
(mutex (mailbox.mutex mbox)))
(swank::log-event "clasp.lisp: send message ~a mutex: ~a~%" message mutex)
(swank::log-event "clasp.lisp: (lock-owner mutex) -> ~a~%" (mp:lock-owner mutex))
(swank::log-event "clasp.lisp: (lock-count mutex) -> ~a~%" (mp:lock-count mutex))
(mp:with-lock (mutex)
(swank::log-event "clasp.lisp: in with-lock (lock-owner mutex) -> ~a~%" (mp:lock-owner mutex))
(swank::log-event "clasp.lisp: in with-lock (lock-count mutex) -> ~a~%" (mp:lock-count mutex))
(setf (mailbox.queue mbox)
(nconc (mailbox.queue mbox) (list message)))
(swank::log-event "clasp.lisp: send about to broadcast~%")
(mp:condition-variable-broadcast (mailbox.cvar mbox)))))
(defimplementation receive-if (test &optional timeout)
(slime-dbg "Entered receive-if")
(let* ((mbox (mailbox (current-thread)))
(mutex (mailbox.mutex mbox)))
(slime-dbg "receive-if assert")
(assert (or (not timeout) (eq timeout t)))
(loop
(slime-dbg "receive-if check-slime-interrupts")
(check-slime-interrupts)
(slime-dbg "receive-if with-lock")
(mp:with-lock (mutex)
(let* ((q (mailbox.queue mbox))
(tail (member-if test q)))
(when tail
(setf (mailbox.queue mbox) (nconc (ldiff q tail) (cdr tail)))
(return (car tail))))
(slime-dbg "receive-if when (eq")
(when (eq timeout t) (return (values nil t)))
(slime-dbg "receive-if condition-variable-timedwait")
(mp:condition-variable-wait (mailbox.cvar mbox) mutex) ; timedwait 0.2
(slime-dbg "came out of condition-variable-timedwait")
(core:check-pending-interrupts)))))
) ; #+threads (progn ...
(defmethod emacs-inspect ((object core:cxx-object))
(let ((encoded (core:encode object)))
(loop for (key . value) in encoded
append (list (string key) ": " (list :value value) (list :newline)))))