(when (constantp size)
(setf alien-type (copy-alien-array-type alien-type))
(setf (alien-array-type-dimensions alien-type)
- (cons (eval size) (cdr dims)))))
+ (cons (constant-form-value size) (cdr dims)))))
(dims
(setf size (car dims)))
(t
(t
(error "~S is not an alien function." alien)))))
-(defun alien-funcall-stdcall (alien &rest args)
- #!+sb-doc
- "Call the foreign function ALIEN with the specified arguments. ALIEN's
- type specifies the argument and result types."
- (declare (type alien-value alien))
- (let ((type (alien-value-type alien)))
- (typecase type
- (alien-pointer-type
- (apply #'alien-funcall-stdcall (deref alien) args))
- (alien-fun-type
- (unless (= (length (alien-fun-type-arg-types type))
- (length args))
- (error "wrong number of arguments for ~S~%expected ~W, got ~W"
- type
- (length (alien-fun-type-arg-types type))
- (length args)))
- (let ((stub (alien-fun-type-stub type)))
- (unless stub
- (setf stub
- (let ((fun (gensym))
- (parms (make-gensym-list (length args))))
- (compile nil
- `(lambda (,fun ,@parms)
- (declare (optimize (sb!c::insert-step-conditions 0)))
- (declare (type (alien ,type) ,fun))
- (alien-funcall-stdcall ,fun ,@parms)))))
- (setf (alien-fun-type-stub type) stub))
- (apply stub alien args)))
- (t
- (error "~S is not an alien function." alien)))))
-
(defmacro define-alien-routine (name result-type
&rest args
&environment lexenv)
(sb!kernel:get-lisp-obj-address args-pointer)))
(res-sap (int-sap
(sb!kernel:get-lisp-obj-address result-pointer))))
+ (declare (ignorable args-sap res-sap))
(with-alien
,(loop
+ with offset = 0
for spec in argument-specs
- for offset = 0 ; FIXME: Should this not be AND OFFSET ...?
- then (+ offset (alien-callback-argument-bytes spec env))
collect `(,(pop argument-names) ,spec
:local ,(alien-callback-accessor-form
- spec 'args-sap offset)))
+ spec 'args-sap offset))
+ do (incf offset (alien-callback-argument-bytes spec env)))
,(flet ((store (spec)
(if spec
`(setf (deref (sap-alien res-sap (* ,spec)))
return
arguments))
+;;; To ensure that callback wrapper functions continue working even
+;;; if #'ENTER-ALIEN-CALLBACK moves in memory, access to it is indirected
+;;; through the *ENTER-ALIEN-CALLBACK* static symbol. -- JES, 2006-01-01
+(defvar *enter-alien-callback* #'enter-alien-callback)
+
;;;; interface (not public, yet) for alien callbacks
(defmacro alien-callback (specifier function &environment env)
(setf (callback-info-function info) nil)
t)))
-;;; FIXME: This calls assembles a new callback for every closure,
-;;; which suck hugely. ...not that I can think of an obvious
+;;; FIXME: This call assembles a new callback for every closure,
+;;; which sucks hugely. ...not that I can think of an obvious
;;; solution. Possibly maybe we could write a generalized closure
;;; callback analogous to closure_tramp, and share the actual wrapper?
;;;