[clg] / glib / glib.lisp

;; Common Lisp bindings for GTK+ 2.x
;; Copyright 1999-2005 Espen S. Johnsen <espen@users.sf.net>
;;
;; Permission is hereby granted, free of charge, to any person obtaining
;; a copy of this software and associated documentation files (the
;; "Software"), to deal in the Software without restriction, including
;; without limitation the rights to use, copy, modify, merge, publish,
;; distribute, sublicense, and/or sell copies of the Software, and to
;; permit persons to whom the Software is furnished to do so, subject to
;; the following conditions:
;;
;; The above copyright notice and this permission notice shall be
;; included in all copies or substantial portions of the Software.
;;
;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

;; $Id: glib.lisp,v 1.39 2006-12-21 16:38:19 espen Exp $


(in-package "GLIB")

(use-prefix "g")


;;;; Memory management

(defbinding (%allocate-memory "g_malloc0") () pointer
  (size unsigned-long))

(defbinding (%deallocate-memory "g_free") () nil
  (address pointer))

;; (setf
;;  (symbol-function 'allocate-memory) #'%allocate-memory
;;  (symbol-function 'deallocate-memory) #'%deallocate-memory)

(setf *memory-allocator* #'%allocate-memory)
(setf *memory-deallocator* #'%deallocate-memory)

;;;; User data mechanism

(defvar *user-data* (make-hash-table))
(defvar *user-data-count* 0)

(defun register-user-data (object &optional destroy-function)
  (check-type destroy-function (or null symbol function))
  (incf *user-data-count*)
  (setf
   (gethash *user-data-count* *user-data*)
   (cons object destroy-function))
  *user-data-count*)

(defun find-user-data (id)
  (check-type id fixnum)
  (multiple-value-bind (user-data p) (gethash id *user-data*)
    (values (car user-data) p)))

(defun user-data-exists-p (id)
  (nth-value 1 (find-user-data id)))

(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*)))
    (when (cdr user-data)
      (funcall (cdr user-data) (car user-data))))
  (remhash id *user-data*))


;;;; Quarks

(deftype quark () 'unsigned)

(defbinding %quark-from-string () quark
  (string string))

(defun quark-intern (object)
  (etypecase object
    (quark object)
    (string (%quark-from-string object))
    (symbol (%quark-from-string (format nil "clg-~A:~A" 
				 (package-name (symbol-package object)) 
				 object)))))

(defbinding quark-to-string () (static string)
  (quark quark))


;;;; Linked list (GList)

(deftype glist (type) 
  `(or null (cons ,type list)))

(defbinding (%glist-append "g_list_append") () pointer
  (glist (or null pointer))
  (nil null))

(defun make-glist (element-type list &optional temp-p)
  (let ((writer (if (functionp element-type)
		    element-type
		  (writer-function element-type :temp temp-p))))
    (loop
     for element in list
     as glist = (%glist-append nil) then (%glist-append glist)
     do (funcall writer element glist)
     finally (return glist))))

(defun glist-next (glist)
  (unless (null-pointer-p glist)
    (ref-pointer glist #.(size-of 'pointer))))
  
;; Also used for gslists
(defun map-glist (seqtype function glist element-type &optional (ref :read))
  (let ((reader (if (functionp element-type)
		    element-type
		  (reader-function element-type :ref ref))))
    (case seqtype 
     ((nil)
      (loop
       as element = glist then (glist-next element)
       until (null-pointer-p element)
       do (funcall function (funcall reader element))))
     (list
      (loop
       as element = glist then (glist-next element)
       until (null-pointer-p element)
       collect (funcall function (funcall reader element))))
     (t
      (coerce 
       (loop
	as element = glist then (glist-next element)
	until (null-pointer-p element)
	collect (funcall function (funcall reader element)))
       seqtype)))))

(defbinding (glist-free "g_list_free") () nil
  (glist pointer))

(defun destroy-glist (glist element-type &optional temp-p)
  (let ((destroy (if (functionp element-type)
		     element-type
		   (destroy-function element-type :temp temp-p))))
    (loop
     as element = glist then (glist-next element)
     until (null-pointer-p element)
     do (funcall destroy element)))
  (glist-free glist))

(define-type-method alien-type ((type glist))
  (declare (ignore type))
  (alien-type 'pointer))

(define-type-method size-of ((type glist) &key inlined)
  (assert-not-inlined type inlined)
  (size-of 'pointer))

(define-type-method type-alignment ((type glist) &key inlined)
  (assert-not-inlined type inlined)
  (type-alignment 'pointer))

(define-type-method alien-arg-wrapper ((type glist) var list style form &optional copy-in-p)
  (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
    (cond
      ((and (in-arg-p style) (not (out-arg-p style)))
       `(with-pointer (,var (make-glist ',element-type ,list ,(not copy-in-p)))
	  (unwind-protect
	      ,form
	    ,(unless copy-in-p
	       `(destroy-glist ,var ',element-type t)))))
      ((and (in-arg-p style) (out-arg-p style))
       (let ((glist (make-symbol "GLIST")))
	 `(with-pointer (,glist (make-glist ',element-type ,list ,(not copy-in-p)))
            (with-pointer (,var ,glist)		      
	      (unwind-protect
		  ,form
		,(unless copy-in-p
		   `(destroy-glist ,glist ',element-type t)))))))
      ((and (out-arg-p style) (not (in-arg-p style)))
       `(with-pointer (,var)
	  ,form)))))

(define-type-method to-alien-form ((type glist) list &optional copy-p)
  (declare (ignore copy-p))
  (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
    `(make-glist ',element-type ,list)))

(define-type-method to-alien-function ((type glist) &optional copy-p)
  (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
    (values
     #'(lambda (list)
	 (make-glist element-type list (not copy-p)))
     (unless copy-p
       #'(lambda (list glist)
	   (declare (ignore list))
	   (destroy-glist glist element-type t))))))

(define-type-method from-alien-form ((type glist) form &key (ref :free))
  (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
    `(let ((glist ,form))
       (unwind-protect
	   (map-glist 'list #'identity glist ',element-type 
	    ,(ecase ref (:free :get) ((:static :temp) :peek) (:copy :read)))
	 ,(when (eq ref :free)
	    `(destroy-glist glist ',element-type))))))

(define-type-method from-alien-function ((type glist) &key (ref :free))
  (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
    (ecase ref
      (:free 
       #'(lambda (glist)
	   (prog1
	       (map-glist 'list #'identity glist element-type :get)
	     (glist-free glist))))
      (:copy
       #'(lambda (glist)
	   (map-glist 'list #'identity glist element-type :read)))
      ((:static :temp)
       #'(lambda (glist)
	   (map-glist 'list #'identity glist element-type :peek))))))

(define-type-method writer-function ((type glist) &key temp inlined)
  (assert-not-inlined type inlined)
  (let ((element-type (second (type-expand-to 'glist type))))
    #'(lambda (list location &optional (offset 0))
	(setf 
	 (ref-pointer location offset)
	 (make-glist element-type list temp)))))

(define-type-method reader-function ((type glist) &key (ref :read) inlined)
  (assert-not-inlined type inlined)
  (let ((element-type (second (type-expand-to 'glist type))))
    (ecase ref
      ((:read :peek)
       #'(lambda (location &optional (offset 0))
	   (unless (null-pointer-p (ref-pointer location offset))
	     (map-glist 'list #'identity (ref-pointer location offset) element-type ref))))
      (:get
       #'(lambda (location &optional (offset 0))
	   (unless (null-pointer-p (ref-pointer location offset))
	     (prog1
		 (map-glist 'list #'identity (ref-pointer location offset) element-type :get)
	       (glist-free (ref-pointer location offset))
	       (setf (ref-pointer location offset) (make-pointer 0)))))))))

(define-type-method destroy-function ((type glist) &key temp inlined)
  (assert-not-inlined type inlined)
  (let ((element-type (second (type-expand-to 'glist type))))
    #'(lambda (location &optional (offset 0))
	(unless (null-pointer-p (ref-pointer location offset))
	  (destroy-glist (ref-pointer location offset) element-type temp)
	  (setf (ref-pointer location offset) (make-pointer 0))))))

(define-type-method copy-function ((type glist) &key inlined)
  (assert-not-inlined type inlined)
  (destructuring-bind (element-type) (rest (type-expand-to 'glist type))
    (let ((copy-element (copy-function element-type)))
      #'(lambda (from to &optional (offset 0))
	  (unless (null-pointer-p (ref-pointer from offset))
	    (loop
	     as from-list = (ref-pointer from offset) 
	                    then (glist-next from-list)
	     as to-list = (setf (ref-pointer to offset) (%glist-append nil)) 
	                  then (%glist-append to-list)
	     do (funcall copy-element from-list to-list)
	     while (glist-next from-lisT)))))))


;;;; Single linked list (GSList)

(deftype gslist (type) `(or null (cons ,type list)))

(defbinding (%gslist-prepend "g_slist_prepend") () pointer
  (gslist pointer)
  (nil null))

(defbinding (%gslist-append "g_slist_append") () pointer
  (glist (or null pointer))
  (nil null))


(defun make-gslist (element-type list &optional temp-p)
  (let ((writer (if (functionp element-type)
		    element-type
		  (writer-function element-type :temp temp-p))))
    (loop
     for element in (reverse list)
     as gslist = (%gslist-prepend (make-pointer 0)) then (%gslist-prepend gslist)
     do (funcall writer element gslist)
     finally (return gslist))))

(defbinding (gslist-free "g_slist_free") () nil
  (gslist pointer))

(defun destroy-gslist (gslist element-type &optional temp-p)
  (loop
   with destroy = (destroy-function element-type :temp temp-p)
   as element = gslist then (glist-next element)
   until (null-pointer-p element)
   do (funcall destroy element 0))
  (gslist-free gslist))

(define-type-method alien-type ((type gslist))
  (declare (ignore type))
  (alien-type 'pointer))

(define-type-method size-of ((type gslist) &key inlined)
  (assert-not-inlined type inlined)
  (size-of 'pointer))

(define-type-method type-alignment ((type gslist) &key inlined)
  (assert-not-inlined type inlined)
  (type-alignment 'pointer))

(define-type-method alien-arg-wrapper ((type gslist) var list style form &optional copy-in-p)
  (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
    (cond
      ((and (in-arg-p style) (not (out-arg-p style)))
       `(with-pointer (,var (make-gslist ',element-type ,list ,(not copy-in-p)))
	  (unwind-protect
	      ,form
	    ,(unless copy-in-p
	       `(destroy-gslist ,var ',element-type t)))))
      ((and (in-arg-p style) (out-arg-p style))
       (let ((gslist (make-symbol "GSLIST")))
	 `(with-pointer (,gslist (make-gslist ',element-type ,list ,(not copy-in-p)))
            (with-pointer (,var ,gslist)		      
	      (unwind-protect
		  ,form
		,(unless copy-in-p
		   `(destroy-gslist ,gslist ',element-type t)))))))
      ((and (out-arg-p style) (not (in-arg-p style)))
       `(with-pointer (,var)
	  ,form)))))

(define-type-method to-alien-form ((type gslist) list &optional copy-p)
  (declare (ignore copy-p))
  (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
    `(make-gslist ',element-type ,list)))

(define-type-method to-alien-function ((type gslist) &optional copy-p)
  (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
    (values
     #'(lambda (list)
	 (make-gslist element-type list (not copy-p)))
     (unless copy-p
       #'(lambda (list gslist)
	   (declare (ignore list))
	   (destroy-gslist gslist element-type t))))))

(define-type-method from-alien-form ((type gslist) form &key (ref :free))
  (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
    `(let ((gslist ,form))
       (unwind-protect
	   (map-glist 'list #'identity gslist ',element-type
	    ,(ecase ref (:free :get) ((:static :temp) :peek) (:copy :read)))
	 ,(when (eq ref :free)
	    `(destroy-gslist gslist ',element-type))))))

(define-type-method from-alien-function ((type gslist)  &key (ref :free))
  (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
    (ecase ref
      (:free 
       #'(lambda (glist)
	   (prog1
	       (map-glist 'list #'identity glist element-type :get)
	     (gslist-free glist))))
      (:copy
       #'(lambda (glist)
	   (map-glist 'list #'identity glist element-type :read)))
      ((:static :temp)
       #'(lambda (glist)
	   (map-glist 'list #'identity glist element-type :peek))))))

(define-type-method writer-function ((type gslist) &key temp inlined)
  (assert-not-inlined type inlined)
  (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
    (let ((element-writer (writer-function element-type :temp temp)))
      #'(lambda (list location &optional (offset 0))
	  (setf 
	   (ref-pointer location offset)
	   (make-gslist element-writer list))))))

(define-type-method reader-function ((type gslist) &key (ref :read) inlined)
  (assert-not-inlined type inlined)
  (let ((element-type (second (type-expand-to 'gslist type))))
    (ecase ref
      ((:read :peek)
       #'(lambda (location &optional (offset 0))
	   (unless (null-pointer-p (ref-pointer location offset))
	     (map-glist 'list #'identity (ref-pointer location offset) element-type ref))))
      (:get
       #'(lambda (location &optional (offset 0))
	   (unless (null-pointer-p (ref-pointer location offset))
	     (prog1
		 (map-glist 'list #'identity (ref-pointer location offset) element-type :get)
	       (gslist-free (ref-pointer location offset))
	       (setf (ref-pointer location offset) (make-pointer 0)))))))))

(define-type-method destroy-function ((type gslist) &key temp inlined)
  (assert-not-inlined type inlined)
  (let ((element-type (second (type-expand-to 'gslist type))))
    #'(lambda (location &optional (offset 0))
	(unless (null-pointer-p (ref-pointer location offset))
	  (destroy-gslist (ref-pointer location offset) element-type temp)
	  (setf (ref-pointer location offset) (make-pointer 0))))))

(define-type-method copy-function ((type gslist) &key inlined)
  (assert-not-inlined type inlined)
  (destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
    (let ((copy-element (copy-function element-type)))
      #'(lambda (from to &optional (offset 0))
	  (unless (null-pointer-p (ref-pointer from offset))
	    (loop
	     as from-list = (ref-pointer from offset) 
	                    then (glist-next from-list)
	     as to-list = (setf (ref-pointer to offset) (%gslist-append nil)) 
	                  then (%gslist-append to-list)
	     do (funcall copy-element from-list to-list)
	     while (glist-next from-list)))))))
Commit	Line	Data
112ac1d3	1	;; Common Lisp bindings for GTK+ 2.x
112ac1d3	2	;; Copyright 1999-2005 Espen S. Johnsen <espen@users.sf.net>
560af5c5	3	;;
112ac1d3	4	;; Permission is hereby granted, free of charge, to any person obtaining
	5	;; a copy of this software and associated documentation files (the
	6	;; "Software"), to deal in the Software without restriction, including
	7	;; without limitation the rights to use, copy, modify, merge, publish,
	8	;; distribute, sublicense, and/or sell copies of the Software, and to
	9	;; permit persons to whom the Software is furnished to do so, subject to
	10	;; the following conditions:
560af5c5	11	;;
112ac1d3	12	;; The above copyright notice and this permission notice shall be
112ac1d3	13	;; included in all copies or substantial portions of the Software.
560af5c5	14	;;
112ac1d3	15	;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	16	;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	17	;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	18	;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
	19	;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	20	;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	21	;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	22
bf54963e	23	;; $Id: glib.lisp,v 1.39 2006-12-21 16:38:19 espen Exp $
560af5c5	24
	25
	26	(in-package "GLIB")
c4e9d221	27
560af5c5	28	(use-prefix "g")
	29
	30
	31	;;;; Memory management
	32
8e0e01e4	33	(defbinding (%allocate-memory "g_malloc0") () pointer
560af5c5	34	(size unsigned-long))
560af5c5	35
8e0e01e4	36	(defbinding (%deallocate-memory "g_free") () nil
3c657c71	37	(address pointer))
7cda9325	38
bf54963e	39	;; (setf
	40	;; (symbol-function 'allocate-memory) #'%allocate-memory
	41	;; (symbol-function 'deallocate-memory) #'%deallocate-memory)
560af5c5	42
bf54963e	43	(setf memory-allocator #'%allocate-memory)
bf54963e	44	(setf memory-deallocator #'%deallocate-memory)
c4e9d221	45
8e0e01e4	46	;;;; User data mechanism
c4e9d221	47
c4e9d221	48	(defvar user-data (make-hash-table))
	49	(defvar user-data-count 0)
	50
	51	(defun register-user-data (object &optional destroy-function)
	52	(check-type destroy-function (or null symbol function))
	53	(incf user-data-count)
	54	(setf
	55	(gethash user-data-count user-data)
	56	(cons object destroy-function))
	57	user-data-count)
	58
	59	(defun find-user-data (id)
	60	(check-type id fixnum)
	61	(multiple-value-bind (user-data p) (gethash id user-data)
	62	(values (car user-data) p)))
	63
7e531ed5	64	(defun user-data-exists-p (id)
	65	(nth-value 1 (find-user-data id)))
	66
c9219df2	67	(defun update-user-data (id object)
	68	(check-type id fixnum)
	69	(multiple-value-bind (user-data exists-p) (gethash id user-data)
	70	(cond
	71	((not exists-p) (error "User data id ~A does not exist" id))
	72	(t
	73	(when (cdr user-data)
	74	(funcall (cdr user-data) (car user-data)))
	75	(setf (car user-data) object)))))
	76
c4e9d221	77	(defun destroy-user-data (id)
	78	(check-type id fixnum)
	79	(let ((user-data (gethash id user-data)))
	80	(when (cdr user-data)
	81	(funcall (cdr user-data) (car user-data))))
	82	(remhash id user-data))
	83
560af5c5	84
0aef1da8	85	;;;; Quarks
	86
	87	(deftype quark () 'unsigned)
	88
5cae32e1	89	(defbinding %quark-from-string () quark
415444ae	90	(string string))
415444ae	91
7e531ed5	92	(defun quark-intern (object)
	93	(etypecase object
	94	(quark object)
	95	(string (%quark-from-string object))
	96	(symbol (%quark-from-string (format nil "clg-~A:~A"
	97	(package-name (symbol-package object))
	98	object)))))
0aef1da8	99
8e0e01e4	100	(defbinding quark-to-string () (static string)
7e531ed5	101	(quark quark))
0aef1da8	102
0aef1da8	103
3846c0b6	104	;;;; Linked list (GList)
560af5c5	105
72e5ffec	106	(deftype glist (type)
75689fea	107	`(or null (cons ,type list)))
560af5c5	108
72e5ffec	109	(defbinding (%glist-append "g_list_append") () pointer
8e0e01e4	110	(glist (or null pointer))
72e5ffec	111	(nil null))
3846c0b6	112
8e0e01e4	113	(defun make-glist (element-type list &optional temp-p)
	114	(let ((writer (if (functionp element-type)
	115	element-type
	116	(writer-function element-type :temp temp-p))))
	117	(loop
	118	for element in list
	119	as glist = (%glist-append nil) then (%glist-append glist)
	120	do (funcall writer element glist)
	121	finally (return glist))))
560af5c5	122
560af5c5	123	(defun glist-next (glist)
560af5c5	124	(unless (null-pointer-p glist)
8e0e01e4	125	(ref-pointer glist #.(size-of 'pointer))))
560af5c5	126
9adccb27	127	;; Also used for gslists
8e0e01e4	128	(defun map-glist (seqtype function glist element-type &optional (ref :read))
	129	(let ((reader (if (functionp element-type)
	130	element-type
	131	(reader-function element-type :ref ref))))
9adccb27	132	(case seqtype
	133	((nil)
	134	(loop
8e0e01e4	135	as element = glist then (glist-next element)
	136	until (null-pointer-p element)
	137	do (funcall function (funcall reader element))))
9adccb27	138	(list
9adccb27	139	(loop
8e0e01e4	140	as element = glist then (glist-next element)
	141	until (null-pointer-p element)
	142	collect (funcall function (funcall reader element))))
9adccb27	143	(t
	144	(coerce
	145	(loop
8e0e01e4	146	as element = glist then (glist-next element)
	147	until (null-pointer-p element)
	148	collect (funcall function (funcall reader element)))
9adccb27	149	seqtype)))))
9adccb27	150
dba0c446	151	(defbinding (glist-free "g_list_free") () nil
560af5c5	152	(glist pointer))
560af5c5	153
8e0e01e4	154	(defun destroy-glist (glist element-type &optional temp-p)
	155	(let ((destroy (if (functionp element-type)
	156	element-type
	157	(destroy-function element-type :temp temp-p))))
	158	(loop
	159	as element = glist then (glist-next element)
	160	until (null-pointer-p element)
	161	do (funcall destroy element)))
72e5ffec	162	(glist-free glist))
415444ae	163
75689fea	164	(define-type-method alien-type ((type glist))
75689fea	165	(declare (ignore type))
9adccb27	166	(alien-type 'pointer))
9adccb27	167
8e0e01e4	168	(define-type-method size-of ((type glist) &key inlined)
8e0e01e4	169	(assert-not-inlined type inlined)
415444ae	170	(size-of 'pointer))
560af5c5	171
90e8bbf6	172	(define-type-method type-alignment ((type glist) &key inlined)
	173	(assert-not-inlined type inlined)
	174	(type-alignment 'pointer))
72e5ffec	175
8e0e01e4	176	(define-type-method alien-arg-wrapper ((type glist) var list style form &optional copy-in-p)
	177	(destructuring-bind (element-type) (rest (type-expand-to 'glist type))
	178	(cond
	179	((and (in-arg-p style) (not (out-arg-p style)))
	180	`(with-pointer (,var (make-glist ',element-type ,list ,(not copy-in-p)))
	181	(unwind-protect
	182	,form
	183	,(unless copy-in-p
	184	`(destroy-glist ,var ',element-type t)))))
	185	((and (in-arg-p style) (out-arg-p style))
	186	(let ((glist (make-symbol "GLIST")))
	187	`(with-pointer (,glist (make-glist ',element-type ,list ,(not copy-in-p)))
	188	(with-pointer (,var ,glist)
	189	(unwind-protect
	190	,form
	191	,(unless copy-in-p
	192	`(destroy-glist ,glist ',element-type t)))))))
	193	((and (out-arg-p style) (not (in-arg-p style)))
	194	`(with-pointer (,var)
	195	,form)))))
	196
	197	(define-type-method to-alien-form ((type glist) list &optional copy-p)
	198	(declare (ignore copy-p))
	199	(destructuring-bind (element-type) (rest (type-expand-to 'glist type))
	200	`(make-glist ',element-type ,list)))
560af5c5	201
8e0e01e4	202	(define-type-method to-alien-function ((type glist) &optional copy-p)
	203	(destructuring-bind (element-type) (rest (type-expand-to 'glist type))
	204	(values
	205	#'(lambda (list)
	206	(make-glist element-type list (not copy-p)))
	207	(unless copy-p
	208	#'(lambda (list glist)
	209	(declare (ignore list))
	210	(destroy-glist glist element-type t))))))
	211
	212	(define-type-method from-alien-form ((type glist) form &key (ref :free))
	213	(destructuring-bind (element-type) (rest (type-expand-to 'glist type))
	214	`(let ((glist ,form))
	215	(unwind-protect
	216	(map-glist 'list #'identity glist ',element-type
	217	,(ecase ref (:free :get) ((:static :temp) :peek) (:copy :read)))
	218	,(when (eq ref :free)
	219	`(destroy-glist glist ',element-type))))))
	220
	221	(define-type-method from-alien-function ((type glist) &key (ref :free))
	222	(destructuring-bind (element-type) (rest (type-expand-to 'glist type))
	223	(ecase ref
	224	(:free
	225	#'(lambda (glist)
	226	(prog1
	227	(map-glist 'list #'identity glist element-type :get)
	228	(glist-free glist))))
	229	(:copy
	230	#'(lambda (glist)
	231	(map-glist 'list #'identity glist element-type :read)))
	232	((:static :temp)
	233	#'(lambda (glist)
	234	(map-glist 'list #'identity glist element-type :peek))))))
	235
	236	(define-type-method writer-function ((type glist) &key temp inlined)
	237	(assert-not-inlined type inlined)
75689fea	238	(let ((element-type (second (type-expand-to 'glist type))))
e8caa25a	239	#'(lambda (list location &optional (offset 0))
e8caa25a	240	(setf
8e0e01e4	241	(ref-pointer location offset)
8e0e01e4	242	(make-glist element-type list temp)))))
e8caa25a	243
8e0e01e4	244	(define-type-method reader-function ((type glist) &key (ref :read) inlined)
8e0e01e4	245	(assert-not-inlined type inlined)
75689fea	246	(let ((element-type (second (type-expand-to 'glist type))))
8e0e01e4	247	(ecase ref
	248	((:read :peek)
	249	#'(lambda (location &optional (offset 0))
	250	(unless (null-pointer-p (ref-pointer location offset))
	251	(map-glist 'list #'identity (ref-pointer location offset) element-type ref))))
	252	(:get
	253	#'(lambda (location &optional (offset 0))
	254	(unless (null-pointer-p (ref-pointer location offset))
	255	(prog1
	256	(map-glist 'list #'identity (ref-pointer location offset) element-type :get)
	257	(glist-free (ref-pointer location offset))
	258	(setf (ref-pointer location offset) (make-pointer 0)))))))))
	259
	260	(define-type-method destroy-function ((type glist) &key temp inlined)
	261	(assert-not-inlined type inlined)
75689fea	262	(let ((element-type (second (type-expand-to 'glist type))))
e8caa25a	263	#'(lambda (location &optional (offset 0))
8e0e01e4	264	(unless (null-pointer-p (ref-pointer location offset))
	265	(destroy-glist (ref-pointer location offset) element-type temp)
	266	(setf (ref-pointer location offset) (make-pointer 0))))))
	267
	268	(define-type-method copy-function ((type glist) &key inlined)
	269	(assert-not-inlined type inlined)
	270	(destructuring-bind (element-type) (rest (type-expand-to 'glist type))
	271	(let ((copy-element (copy-function element-type)))
	272	#'(lambda (from to &optional (offset 0))
	273	(unless (null-pointer-p (ref-pointer from offset))
	274	(loop
	275	as from-list = (ref-pointer from offset)
	276	then (glist-next from-list)
	277	as to-list = (setf (ref-pointer to offset) (%glist-append nil))
	278	then (%glist-append to-list)
	279	do (funcall copy-element from-list to-list)
	280	while (glist-next from-lisT)))))))
e8caa25a	281
560af5c5	282
3846c0b6	283	;;;; Single linked list (GSList)
3846c0b6	284
75689fea	285	(deftype gslist (type) `(or null (cons ,type list)))
3846c0b6	286
72e5ffec	287	(defbinding (%gslist-prepend "g_slist_prepend") () pointer
3846c0b6	288	(gslist pointer)
72e5ffec	289	(nil null))
3846c0b6	290
8e0e01e4	291	(defbinding (%gslist-append "g_slist_append") () pointer
	292	(glist (or null pointer))
	293	(nil null))
	294
	295
	296	(defun make-gslist (element-type list &optional temp-p)
	297	(let ((writer (if (functionp element-type)
	298	element-type
	299	(writer-function element-type :temp temp-p))))
	300	(loop
	301	for element in (reverse list)
	302	as gslist = (%gslist-prepend (make-pointer 0)) then (%gslist-prepend gslist)
	303	do (funcall writer element gslist)
	304	finally (return gslist))))
9adccb27	305
dba0c446	306	(defbinding (gslist-free "g_slist_free") () nil
3846c0b6	307	(gslist pointer))
3846c0b6	308
8e0e01e4	309	(defun destroy-gslist (gslist element-type &optional temp-p)
72e5ffec	310	(loop
8e0e01e4	311	with destroy = (destroy-function element-type :temp temp-p)
	312	as element = gslist then (glist-next element)
	313	until (null-pointer-p element)
	314	do (funcall destroy element 0))
72e5ffec	315	(gslist-free gslist))
3846c0b6	316
75689fea	317	(define-type-method alien-type ((type gslist))
75689fea	318	(declare (ignore type))
9adccb27	319	(alien-type 'pointer))
9adccb27	320
8e0e01e4	321	(define-type-method size-of ((type gslist) &key inlined)
8e0e01e4	322	(assert-not-inlined type inlined)
3846c0b6	323	(size-of 'pointer))
3846c0b6	324
90e8bbf6	325	(define-type-method type-alignment ((type gslist) &key inlined)
	326	(assert-not-inlined type inlined)
	327	(type-alignment 'pointer))
	328
8e0e01e4	329	(define-type-method alien-arg-wrapper ((type gslist) var list style form &optional copy-in-p)
	330	(destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
	331	(cond
	332	((and (in-arg-p style) (not (out-arg-p style)))
	333	`(with-pointer (,var (make-gslist ',element-type ,list ,(not copy-in-p)))
	334	(unwind-protect
	335	,form
	336	,(unless copy-in-p
	337	`(destroy-gslist ,var ',element-type t)))))
	338	((and (in-arg-p style) (out-arg-p style))
	339	(let ((gslist (make-symbol "GSLIST")))
	340	`(with-pointer (,gslist (make-gslist ',element-type ,list ,(not copy-in-p)))
	341	(with-pointer (,var ,gslist)
	342	(unwind-protect
	343	,form
	344	,(unless copy-in-p
	345	`(destroy-gslist ,gslist ',element-type t)))))))
	346	((and (out-arg-p style) (not (in-arg-p style)))
	347	`(with-pointer (,var)
	348	,form)))))
	349
	350	(define-type-method to-alien-form ((type gslist) list &optional copy-p)
	351	(declare (ignore copy-p))
	352	(destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
	353	`(make-gslist ',element-type ,list)))
	354
	355	(define-type-method to-alien-function ((type gslist) &optional copy-p)
	356	(destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
	357	(values
	358	#'(lambda (list)
	359	(make-gslist element-type list (not copy-p)))
	360	(unless copy-p
	361	#'(lambda (list gslist)
	362	(declare (ignore list))
	363	(destroy-gslist gslist element-type t))))))
	364
	365	(define-type-method from-alien-form ((type gslist) form &key (ref :free))
	366	(destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
	367	`(let ((gslist ,form))
	368	(unwind-protect
	369	(map-glist 'list #'identity gslist ',element-type
	370	,(ecase ref (:free :get) ((:static :temp) :peek) (:copy :read)))
	371	,(when (eq ref :free)
	372	`(destroy-gslist gslist ',element-type))))))
	373
	374	(define-type-method from-alien-function ((type gslist) &key (ref :free))
	375	(destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
	376	(ecase ref
	377	(:free
	378	#'(lambda (glist)
	379	(prog1
	380	(map-glist 'list #'identity glist element-type :get)
	381	(gslist-free glist))))
	382	(:copy
	383	#'(lambda (glist)
	384	(map-glist 'list #'identity glist element-type :read)))
	385	((:static :temp)
	386	#'(lambda (glist)
	387	(map-glist 'list #'identity glist element-type :peek))))))
	388
	389	(define-type-method writer-function ((type gslist) &key temp inlined)
	390	(assert-not-inlined type inlined)
	391	(destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
	392	(let ((element-writer (writer-function element-type :temp temp)))
393	#'(lambda (list location &optional (offset 0))
394	(setf
395	(ref-pointer location offset)
396	(make-gslist element-writer list))))))
397
398	(define-type-method reader-function ((type gslist) &key (ref :read) inlined)
399	(assert-not-inlined type inlined)
75689fea	400	(let ((element-type (second (type-expand-to 'gslist type))))
8e0e01e4	401	(ecase ref
	402	((:read :peek)
	403	#'(lambda (location &optional (offset 0))
	404	(unless (null-pointer-p (ref-pointer location offset))
	405	(map-glist 'list #'identity (ref-pointer location offset) element-type ref))))
	406	(:get
	407	#'(lambda (location &optional (offset 0))
	408	(unless (null-pointer-p (ref-pointer location offset))
	409	(prog1
	410	(map-glist 'list #'identity (ref-pointer location offset) element-type :get)
	411	(gslist-free (ref-pointer location offset))
	412	(setf (ref-pointer location offset) (make-pointer 0)))))))))
	413
	414	(define-type-method destroy-function ((type gslist) &key temp inlined)
	415	(assert-not-inlined type inlined)
75689fea	416	(let ((element-type (second (type-expand-to 'gslist type))))
e8caa25a	417	#'(lambda (location &optional (offset 0))
8e0e01e4	418	(unless (null-pointer-p (ref-pointer location offset))
	419	(destroy-gslist (ref-pointer location offset) element-type temp)
	420	(setf (ref-pointer location offset) (make-pointer 0))))))
	421
	422	(define-type-method copy-function ((type gslist) &key inlined)
	423	(assert-not-inlined type inlined)
	424	(destructuring-bind (element-type) (rest (type-expand-to 'gslist type))
	425	(let ((copy-element (copy-function element-type)))
	426	#'(lambda (from to &optional (offset 0))
	427	(unless (null-pointer-p (ref-pointer from offset))
	428	(loop
	429	as from-list = (ref-pointer from offset)
	430	then (glist-next from-list)
	431	as to-list = (setf (ref-pointer to offset) (%gslist-append nil))
	432	then (%gslist-append to-list)
	433	do (funcall copy-element from-list to-list)
	434	while (glist-next from-list)))))))