X-Git-Url: https://git.distorted.org.uk/~mdw/clg/blobdiff_plain/e5a69a73d1af1ba5625b4707ec578243a675d6ad..3330adc9c1f467dceb8ef362e63aee00bd105e46:/glib/glib.lisp diff --git a/glib/glib.lisp b/glib/glib.lisp index 6fcfb5a..afc7a83 100644 --- a/glib/glib.lisp +++ b/glib/glib.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: glib.lisp,v 1.19 2004/11/12 13:27:41 espen Exp $ +;; $Id: glib.lisp,v 1.23 2005/01/03 16:38:57 espen Exp $ (in-package "GLIB") @@ -64,6 +64,16 @@ (multiple-value-bind (user-data p) (gethash id *user-data*) (values (car user-data) p))) +(defun update-user-data (id object) + (check-type id fixnum) + (multiple-value-bind (user-data exists-p) (gethash id *user-data*) + (cond + ((not exists-p) (error "User data id ~A does not exist" id)) + (t + (when (cdr user-data) + (funcall (cdr user-data) (car user-data))) + (setf (car user-data) object))))) + (defun destroy-user-data (id) (check-type id fixnum) (let ((user-data (gethash id *user-data*))) @@ -121,36 +131,20 @@ ;;;; Linked list (GList) -(deftype glist (type &key copy) - (declare (ignore copy)) +(deftype glist (type) `(or (null (cons ,type list)))) -(defbinding (%glist-append-unsigned "g_list_append") () pointer - (glist pointer) - (data unsigned)) - -(defbinding (%glist-append-signed "g_list_append") () pointer - (glist pointer) - (data signed)) - -(defbinding (%glist-append-sap "g_list_append") () pointer +(defbinding (%glist-append "g_list_append") () pointer (glist pointer) - (data pointer)) + (nil null)) (defun make-glist (type list) - (let ((new-element (ecase (alien-type type) - (system-area-pointer #'%glist-append-sap) - ((signed-byte c-call:short c-call:int c-call:long) - #'%glist-append-signed) - ((unsigned-byte c-call:unsigned-short - c-call:unsigned-int c-call:unsigned-long) - #'%glist-append-unsigned))) - (to-alien (to-alien-function type))) - (loop - for element in list - as glist = (funcall new-element (or glist (make-pointer 0)) - (funcall to-alien element)) - finally (return glist)))) + (loop + with writer = (writer-function type) + for element in list + as glist = (%glist-append (or glist (make-pointer 0))) + do (funcall writer element glist) + finally (return glist))) (defun glist-next (glist) (unless (null-pointer-p glist) @@ -181,6 +175,13 @@ (defbinding (glist-free "g_list_free") () nil (glist pointer)) +(defun destroy-glist (glist element-type) + (loop + with destroy = (destroy-function element-type) + as tmp = glist then (glist-next tmp) + until (null-pointer-p tmp) + do (funcall destroy tmp 0)) + (glist-free glist)) (defmethod alien-type ((type (eql 'glist)) &rest args) (declare (ignore type args)) @@ -207,7 +208,7 @@ `(let ((glist ,glist)) (unwind-protect (map-glist 'list #'identity glist ',element-type) - (glist-free glist))))) + (destroy-glist glist ',element-type))))) (defmethod from-alien-function ((type (eql 'glist)) &rest args) (declare (ignore type)) @@ -215,52 +216,81 @@ #'(lambda (glist) (unwind-protect (map-glist 'list #'identity glist element-type) - (glist-free glist))))) + (destroy-glist glist element-type))))) + +(defmethod copy-from-alien-form (glist (type (eql 'glist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + `(map-glist 'list #'identity ,glist ',element-type))) + +(defmethod copy-from-alien-function ((type (eql 'glist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + #'(lambda (glist) + (map-glist 'list #'identity glist element-type)))) (defmethod cleanup-form (glist (type (eql 'glist)) &rest args) - (declare (ignore type args)) - `(glist-free ,glist)) + (declare (ignore type)) + (destructuring-bind (element-type) args + `(destroy-glist ,glist ',element-type))) (defmethod cleanup-function ((type (eql 'glist)) &rest args) - (declare (ignore type args)) - #'glist-free) + (declare (ignore type)) + (destructuring-bind (element-type) args + #'(lambda (glist) + (destroy-glist glist element-type)))) +(defmethod writer-function ((type (eql 'glist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + #'(lambda (list location &optional (offset 0)) + (setf + (sap-ref-sap location offset) + (make-glist element-type list))))) +(defmethod reader-function ((type (eql 'glist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + #'(lambda (location &optional (offset 0)) + (unless (null-pointer-p (sap-ref-sap location offset)) + (map-glist 'list #'identity (sap-ref-sap location offset) element-type))))) -;;;; Single linked list (GSList) +(defmethod destroy-function ((type (eql 'glist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + #'(lambda (location &optional (offset 0)) + (unless (null-pointer-p (sap-ref-sap location offset)) + (destroy-glist (sap-ref-sap location offset) element-type) + (setf (sap-ref-sap location offset) (make-pointer 0)))))) -(deftype gslist (type) `(or (null (cons ,type list)))) -(defbinding (%gslist-prepend-unsigned "g_slist_prepend") () pointer - (gslist pointer) - (data unsigned)) -(defbinding (%gslist-prepend-signed "g_slist_prepend") () pointer - (gslist pointer) - (data signed)) +;;;; Single linked list (GSList) + +(deftype gslist (type) `(or (null (cons ,type list)))) -(defbinding (%gslist-prepend-sap "g_slist_prepend") () pointer +(defbinding (%gslist-prepend "g_slist_prepend") () pointer (gslist pointer) - (data pointer)) + (nil null)) (defun make-gslist (type list) - (let ((new-element (ecase (alien-type type) - (system-area-pointer #'%gslist-prepend-sap) - ((signed-byte c-call:short c-call:int c-call:long) - #'%gslist-prepend-signed) - ((unsigned-byte c-call:unsigned-short - c-call:unsigned-int c-call:unsigned-long) - #'%gslist-prepend-unsigned))) - (to-alien (to-alien-function type))) - (loop - for element in (reverse list) - as gslist = (funcall new-element (or gslist (make-pointer 0)) - (funcall to-alien element)) - finally (return gslist)))) + (loop + with writer = (writer-function type) + for element in (reverse list) + as gslist = (%gslist-prepend (or gslist (make-pointer 0))) + do (funcall writer element gslist) + finally (return gslist))) (defbinding (gslist-free "g_slist_free") () nil (gslist pointer)) +(defun destroy-gslist (gslist element-type) + (loop + with destroy = (destroy-function element-type) + as tmp = gslist then (glist-next tmp) + until (null-pointer-p tmp) + do (funcall destroy tmp 0)) + (gslist-free gslist)) (defmethod alien-type ((type (eql 'gslist)) &rest args) (declare (ignore type args)) @@ -287,7 +317,7 @@ `(let ((gslist ,gslist)) (unwind-protect (map-glist 'list #'identity gslist ',element-type) - (gslist-free gslist))))) + (destroy-gslist gslist ',element-type))))) (defmethod from-alien-function ((type (eql 'gslist)) &rest args) (declare (ignore type)) @@ -295,16 +325,52 @@ #'(lambda (gslist) (unwind-protect (map-glist 'list #'identity gslist element-type) - (gslist-free gslist))))) + (destroy-gslist gslist element-type))))) -(defmethod cleanup-form (list (type (eql 'gslist)) &rest args) - (declare (ignore type args)) - `(gslist-free ,list)) +(defmethod copy-from-alien-form (gslist (type (eql 'gslist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + `(map-glist 'list #'identity ,gslist ',element-type))) + +(defmethod from-alien-function ((type (eql 'gslist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + #'(lambda (gslist) + (map-glist 'list #'identity gslist element-type)))) + +(defmethod cleanup-form (gslist (type (eql 'gslist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + `(destroy-gslist ,gslist ',element-type))) (defmethod cleanup-function ((type (eql 'gslist)) &rest args) - (declare (ignore type args)) - #'gslist-free) + (declare (ignore type)) + (destructuring-bind (element-type) args + #'(lambda (gslist) + (destroy-gslist gslist element-type)))) +(defmethod writer-function ((type (eql 'gslist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + #'(lambda (list location &optional (offset 0)) + (setf + (sap-ref-sap location offset) + (make-gslist element-type list))))) + +(defmethod reader-function ((type (eql 'gslist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + #'(lambda (location &optional (offset 0)) + (unless (null-pointer-p (sap-ref-sap location offset)) + (map-glist 'list #'identity (sap-ref-sap location offset) element-type))))) + +(defmethod destroy-function ((type (eql 'gslist)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type) args + #'(lambda (location &optional (offset 0)) + (unless (null-pointer-p (sap-ref-sap location offset)) + (destroy-gslist (sap-ref-sap location offset) element-type) + (setf (sap-ref-sap location offset) (make-pointer 0)))))) ;;; Vector @@ -354,6 +420,16 @@ finally (return sequence)))))) +(defun destroy-c-vector (location element-type length) + (loop + with destroy = (destroy-function element-type) + with element-size = (size-of element-type) + for i from 0 below length + as offset = 0 then (+ offset element-size) + do (funcall destroy location offset)) + (deallocate-memory location)) + + (defmethod alien-type ((type (eql 'vector)) &rest args) (declare (ignore type args)) (alien-type 'pointer)) @@ -377,12 +453,22 @@ location) `(make-c-vector ',element-type ,length ,vector)))) -(defmethod from-alien-form (location (type (eql 'vector)) &rest args) +(defmethod from-alien-form (c-vector (type (eql 'vector)) &rest args) (declare (ignore type)) (destructuring-bind (element-type &optional (length '*)) args (if (eq length '*) (error "Can't use vector of variable size as return type") - `(map-c-vector 'vector #'identity ',element-type ',length ,location)))) + `(let ((c-vector ,c-vector)) + (prog1 + (map-c-vector 'vector #'identity c-vector ',element-type ,length) + (destroy-c-vector c-vector ',element-type ,length)))))) + +(defmethod copy-from-alien-form (c-vector (type (eql 'vector)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type &optional (length '*)) args + (if (eq length '*) + (error "Can't use vector of variable size as return type") + `(map-c-vector 'vector #'identity ,c-vector ',element-type ',length)))) (defmethod cleanup-form (location (type (eql 'vector)) &rest args) (declare (ignore type)) @@ -399,3 +485,32 @@ (deallocate-memory ,(if (eq length '*) `(sap+ location ,(- +size-of-int+)) 'location))))) + +(defmethod writer-function ((type (eql 'vector)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type &optional (length '*)) args + #'(lambda (vector location &optional (offset 0)) + (setf + (sap-ref-sap location offset) + (make-c-vector element-type length vector))))) + +(defmethod reader-function ((type (eql 'vector)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type &optional (length '*)) args + (if (eq length '*) + (error "Can't create reader function for vector of variable size") + #'(lambda (location &optional (offset 0)) + (unless (null-pointer-p (sap-ref-sap location offset)) + (map-c-vector 'vector #'identity (sap-ref-sap location offset) + element-type length)))))) + +(defmethod destroy-function ((type (eql 'vector)) &rest args) + (declare (ignore type)) + (destructuring-bind (element-type &optional (length '*)) args + (if (eq length '*) + (error "Can't create destroy function for vector of variable size") + #'(lambda (location &optional (offset 0)) + (unless (null-pointer-p (sap-ref-sap location offset)) + (destroy-c-vector + (sap-ref-sap location offset) element-type length) + (setf (sap-ref-sap location offset) (make-pointer 0)))))))