X-Git-Url: https://git.distorted.org.uk/~mdw/clg/blobdiff_plain/8e0e01e42b1c846d06a0a38f5cfb38cf897e2f96..17349b4d1ae3139ef495047cbadd532dc4e94f97:/glib/glib.lisp

diff --git a/glib/glib.lisp b/glib/glib.lisp
index 6d01049..a94b0fd 100644
--- a/glib/glib.lisp
+++ b/glib/glib.lisp
@@ -20,64 +20,113 @@
 ;; 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 1.37 2006-04-25 21:51:32 espen Exp $
+;; $Id: glib.lisp,v 1.45 2008-12-14 21:37:25 espen Exp $
 
 
 (in-package "GLIB")
 
 (use-prefix "g")
 
+#-sb-thread
+(progn
+  (defun make-mutex ()
+    nil)
+  
+  (defmacro with-mutex ((mutex) &body body)
+    (declare (ignore mutex))
+    `(progn ,@body)))
+
 
 ;;;; Memory management
 
-(defbinding (%allocate-memory "g_malloc0") () pointer
-  (size unsigned-long))
+(deftype gsize () 'unsigned-int)
+(deftype gssize () 'int)
+(deftype goffset () '(unsigned-int 64))
+
 
-(defbinding (%deallocate-memory "g_free") () nil
+(defbinding malloc0 () pointer
+  (size gsize))
+
+(defbinding free () nil
   (address pointer))
 
-(setf
- (symbol-function 'allocate-memory) #'%allocate-memory
- (symbol-function 'deallocate-memory) #'%deallocate-memory)
+(setf *memory-allocator* #'malloc0)
+(setf *memory-deallocator* #'free)
+
+(defbinding (reallocate-memory "g_realloc") () pointer
+  (address pointer)
+  (size gsize))
+
+(defbinding (slice-alloc "g_slice_alloc0") () pointer
+  (block-size gsize))
 
+;;;; User data is a mechanism to store references to lisp objects in
+;;;; foreign code
 
-;;;; User data mechanism
+;; TODO: move to gffi
 
+(defvar *user-data-lock* (make-mutex))
 (defvar *user-data* (make-hash-table))
-(defvar *user-data-count* 0)
+(defvar *user-data-next-id* 1)
 
 (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*)
+  (with-mutex (*user-data-lock*)
+    (setf
+     (gethash *user-data-next-id* *user-data*)
+     (cons object destroy-function))
+    (1- (incf *user-data-next-id*))))
 
 (defun find-user-data (id)
   (check-type id fixnum)
-  (multiple-value-bind (user-data p) (gethash id *user-data*)
-    (values (car user-data) p)))
+  (with-mutex (*user-data-lock*)
+    (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)))))
+  (with-mutex (*user-data-lock*)
+    (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*))
+  (with-mutex (*user-data-lock*)
+    (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)))
+	(remhash id *user-data*))))))
+
+(defun take-user-data (id)
+  (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)))
+	(remhash id *user-data*)
+	(car user-data)))))
+
+(defmacro with-user-data ((var object) &body body)
+  `(let ((,var (register-user-data ,object)))
+     (unwind-protect
+	  ,@body
+       (destroy-user-data ,var))))
+
+
+(deftype user-data-id () 'pointer-data)
 
 
 ;;;; Quarks
@@ -104,19 +153,22 @@
 (deftype glist (type) 
   `(or null (cons ,type list)))
 
-(defbinding (%glist-append "g_list_append") () pointer
+(defbinding (%glist-prepend "g_list_prepend") () pointer
   (glist (or null pointer))
   (nil null))
 
+(defbinding (%glist-reverse "g_list_reverse") () pointer
+  (glist (or null pointer)))
+
 (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)
+     as glist = (%glist-prepend nil) then (%glist-prepend glist)
      do (funcall writer element glist)
-     finally (return glist))))
+     finally (return (%glist-reverse glist)))))
 
 (defun glist-next (glist)
   (unless (null-pointer-p glist)
@@ -163,10 +215,19 @@
   (declare (ignore type))
   (alien-type 'pointer))
 
+(define-type-method argument-type ((type glist))
+  'list)
+
+(define-type-method return-type ((type glist))
+  'list)
+
 (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))
@@ -267,12 +328,11 @@
       #'(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)
+	     as from-list = (ref-pointer from offset) then (glist-next from-list)
+	     as to-list = (%glist-prepend nil) then (%glist-prepend to-list)
 	     do (funcall copy-element from-list to-list)
-	     while (glist-next from-lisT)))))))
+	     while (glist-next from-list)
+	     finally (setf (ref-pointer to offset) (%glist-reverse to-list))))))))
 
 
 ;;;; Single linked list (GSList)
@@ -313,10 +373,20 @@
   (declare (ignore type))
   (alien-type 'pointer))
 
+(define-type-method argument-type ((type gslist))
+  'list)
+
+(define-type-method return-type ((type gslist))
+  'list)
+
 (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