;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-;; $Id: ffi.lisp,v 1.27 2006-02-26 15:50:32 espen Exp $
+;; $Id: ffi.lisp,v 1.30 2006-03-03 20:31:24 espen Exp $
(in-package "GLIB")
(find (first lambda-list) '(&optional &key &rest &allow-other-keys)))
(error "A type generic needs at least one required argument")
`(progn
- (setf (get ',name 'type-methods) (make-hash-table))
- (setf (get ',name 'built-in-type-hierarchy) ())
+ (unless (get ',name 'type-methods)
+ (setf (get ',name 'type-methods) (make-hash-table))
+ (setf (get ',name 'built-in-type-hierarchy) ()))
(defun ,name ,lambda-list
,documentation
(funcall
"Returns a value which should be intepreted as unbound for slots with virtual allocation")
+#+sbcl
+(eval-when (:compile-toplevel :load-toplevel :execute)
+ (defun sb-sizeof-bits (type)
+ (sb-alien-internals:alien-type-bits
+ (sb-alien-internals:parse-alien-type type nil)))
+
+ (defun sb-sizeof (type)
+ (/ (sb-sizeof-bits type) 8)))
+
+
;; Sizes of fundamental C types in bytes (8 bits)
-(defconstant +size-of-short+ 2)
-(defconstant +size-of-int+ 4)
-(defconstant +size-of-long+ 4)
-(defconstant +size-of-pointer+ 4)
-(defconstant +size-of-float+ 4)
-(defconstant +size-of-double+ 8)
+(defconstant +size-of-short+
+ #+sbcl (sb-sizeof 'sb-alien:short)
+ #-sbcl 2)
+(defconstant +size-of-int+
+ #+sbcl (sb-sizeof 'sb-alien:int)
+ #-sbcl 4)
+(defconstant +size-of-long+
+ #+sbcl (sb-sizeof 'sb-alien:long)
+ #-sbcl 4)
+(defconstant +size-of-pointer+
+ #+sbcl (sb-sizeof 'sb-alien:system-area-pointer)
+ #-sbcl 4)
+(defconstant +size-of-float+
+ #+sbcl (sb-sizeof 'sb-alien:float)
+ #-sbcl 4)
+(defconstant +size-of-double+
+ #+sbcl (sb-sizeof 'sb-alien:double)
+ #-sbcl 8)
+
;; Sizes of fundamental C types in bits
(defconstant +bits-of-byte+ 8)
-(defconstant +bits-of-short+ 16)
-(defconstant +bits-of-int+ 32)
-(defconstant +bits-of-long+ 32)
+(defconstant +bits-of-short+
+ #+sbcl (sb-sizeof-bits 'sb-alien:short)
+ #-sbcl 16)
+(defconstant +bits-of-int+
+ #+sbcl (sb-sizeof-bits 'sb-alien:int)
+ #-sbcl 32)
+(defconstant +bits-of-long+
+ #+sbcl (sb-sizeof-bits 'sb-alien:long)
+ #-sbcl 32)
(deftype int () '(signed-byte #.+bits-of-int+))
(define-type-method from-alien-function ((type copy-of))
(copy-from-alien-function (second (type-expand-to 'copy-of type))))
+(define-type-method cleanup-function ((type copy-of))
+ (declare (ignore type))
+ #'identity)
+
+(define-type-method destroy-function ((type copy-of))
+ (declare (ignore type))
+ #'(lambda (location &optional offset)
+ (declare (ignore location offset))))
+
(define-type-method alien-type ((type callback))
(declare (ignore type))