X-Git-Url: https://git.distorted.org.uk/~mdw/clg/blobdiff_plain/5cae32e1183e91a8a248c1ea76e5152105ddc595..5d46268894c9c8386aebcf9aeddd5f625845ce66:/glib/gforeign.lisp

diff --git a/glib/gforeign.lisp b/glib/gforeign.lisp
index 5612b54..8e37658 100644
--- a/glib/gforeign.lisp
+++ b/glib/gforeign.lisp
@@ -15,7 +15,7 @@
 ;; License along with this library; if not, write to the Free Software
 ;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
-;; $Id: gforeign.lisp,v 1.6 2001-04-29 20:05:22 espen Exp $
+;; $Id: gforeign.lisp,v 1.9 2001-05-11 15:57:57 espen Exp $
 
 (in-package "GLIB")
 
@@ -287,10 +287,11 @@
     
 	 
 (defmacro defbinding (name lambda-list return-type-spec &rest docs/args)
-  (multiple-value-bind (c-name lisp-name)
+  (multiple-value-bind (lisp-name c-name)
       (if (atom name)
-	  (values (default-alien-fname name) name)
-	(values-list name))
+ 	  (values name (default-alien-fname name))
+ 	(values-list name))
+		       
     (let ((supplied-lambda-list lambda-list)
 	  (docs nil)
 	  (args nil))
@@ -312,11 +313,6 @@
        c-name lisp-name (or supplied-lambda-list (nreverse lambda-list))
        return-type-spec (reverse docs) (reverse args)))))
 
-;; For backward compatibility
-(defmacro define-foreign (&rest args)
-  `(defbinding ,@args))
-  
-
 #+cmu
 (defun %defbinding (foreign-name lisp-name lambda-list
 		    return-type-spec docs args)
@@ -364,7 +360,26 @@
 		 ,@(alien-deallocators)
 		 (values ,@(alien-values)))))))))
 
-  
+
+(defun mkbinding (name rettype &rest types)
+  (declare (optimize (ext:inhibit-warnings 3)))
+  (let* ((ftype
+	  `(function ,@(mapcar #'translate-type-spec (cons rettype types))))
+	 (alien
+	  (alien::%heap-alien
+	   (alien::make-heap-alien-info
+	    :type (alien::parse-alien-type ftype)
+	    :sap-form (system:foreign-symbol-address name))))
+	 (translate-arguments (mapcar #'intern-return-value-translator types))
+	 (translate-return-value (intern-return-value-translator rettype))
+	 (cleanup-arguments (mapcar #'intern-cleanup-function types)))
+	 
+    #'(lambda (&rest args)
+	(map-into args #'funcall translate-arguments args)
+	(prog1
+	    (funcall
+	     translate-return-value (apply #'alien:alien-funcall alien args))
+	  (mapc #'funcall cleanup-arguments args)))))
 
 
 ;;;; Definitons and translations of fundamental types
@@ -382,7 +397,6 @@
 (deftype boolean (&optional (size '*))
   (declare (ignore size))
   `(member t nil))
-(deftype static (type) type)
 (deftype invalid () nil)
 
 (defun atomic-type-p (type-spec)
@@ -607,6 +621,7 @@
     (unreference-alien type-spec c-string)))
 
 (deftype-method unreference-alien string (type-spec c-string)
+  (declare (ignore type-spec))
   `(let ((c-string ,c-string))
      (unless (null-pointer-p c-string)
        (deallocate-memory c-string))))
@@ -683,3 +698,9 @@
 (deftype-method translate-type-spec nil (type-spec)
   (declare (ignore type-spec))
   'void)
+
+(deftype-method translate-from-alien nil (type-spec expr &optional weak-ref)
+  (declare (ignore type-spec weak-ref))
+  `(progn
+     ,expr
+     (values)))