view lisp/gtk-ffi.el @ 5013:ae48681c47fa

changes to VOID_TO_LISP et al. -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-02-08 Ben Wing <ben@xemacs.org> * casetab.c (compute_canon_mapper): * casetab.c (initialize_identity_mapper): * casetab.c (compute_up_or_eqv_mapper): * casetab.c (recompute_case_table): * casetab.c (set_case_table): * chartab.c (copy_mapper): * chartab.c (copy_char_table_range): * chartab.c (get_range_char_table_1): * console.c (find_nonminibuffer_frame_not_on_console_predicate): * console.c (find_nonminibuffer_frame_not_on_console): * console.c (nuke_all_console_slots): * device.c: * device.c (find_nonminibuffer_frame_not_on_device_predicate): * device.c (find_nonminibuffer_frame_not_on_device): * dialog-msw.c (dialog_proc): * dialog-msw.c (handle_question_dialog_box): * dialog-x.c (maybe_run_dbox_text_callback): * eval.c: * eval.c (safe_run_hook_trapping_problems_1): * eval.c (safe_run_hook_trapping_problems): * event-msw.c: * event-msw.c (mswindows_wnd_proc): * event-msw.c (mswindows_find_frame): * faces.c (update_face_inheritance_mapper): * frame-msw.c (mswindows_init_frame_1): * frame-msw.c (mswindows_get_mouse_position): * frame-msw.c (mswindows_get_frame_parent): * glade.c (connector): * glade.c (Fglade_xml_signal_connect): * glade.c (Fglade_xml_signal_autoconnect): * glade.c (Fglade_xml_textdomain): * glyphs-msw.c (mswindows_subwindow_instantiate): * glyphs-msw.c (mswindows_widget_instantiate): * glyphs.c (check_instance_cache_mapper): * glyphs.c (check_window_subwindow_cache): * glyphs.c (check_image_instance_structure): * gui-x.c (snarf_widget_value_mapper): * gui-x.c (popup_selection_callback): * gui-x.c (button_item_to_widget_value): * keymap.c (map_keymap_mapper): * keymap.c (Fmap_keymap): * menubar-gtk.c (__torn_off_sir): * menubar-gtk.c (__activate_menu): * menubar-gtk.c (menu_convert): * menubar-gtk.c (__generic_button_callback): * menubar-gtk.c (menu_descriptor_to_widget_1): * menubar-msw.c: * menubar-msw.c (EMPTY_ITEM_ID): * menubar-x.c (menu_item_descriptor_to_widget_value_1): * menubar-x.c (pre_activate_callback): * menubar-x.c (command_builder_operate_menu_accelerator): * menubar-x.c (command_builder_find_menu_accelerator): * print.c (print_internal): * process-unix.c (close_process_descs_mapfun): * process.c (get_process_from_usid): * process.c (init_process_io_handles): * profile.c (sigprof_handler): * profile.c (get_profiling_info_timing_maphash): * profile.c (Fget_profiling_info): * profile.c (set_profiling_info_timing_maphash): * profile.c (mark_profiling_info_maphash): * scrollbar-msw.c (mswindows_create_scrollbar_instance): * scrollbar-msw.c (mswindows_free_scrollbar_instance): * scrollbar-msw.c (mswindows_handle_scrollbar_event): * specifier.c (recompute_cached_specifier_everywhere_mapfun): * specifier.c (recompute_cached_specifier_everywhere): * syntax.c (copy_to_mirrortab): * syntax.c (copy_if_not_already_present): * syntax.c (update_just_this_syntax_table): * text.c (new_dfc_convert_now_damn_it): * text.h (LISP_STRING_TO_EXTERNAL): * tooltalk.c: * tooltalk.c (tooltalk_message_callback): * tooltalk.c (tooltalk_pattern_callback): * tooltalk.c (Fcreate_tooltalk_message): * tooltalk.c (Fcreate_tooltalk_pattern): * ui-byhand.c (__generic_toolbar_callback): * ui-byhand.c (generic_toolbar_insert_item): * ui-byhand.c (__emacs_gtk_ctree_recurse_internal): * ui-byhand.c (Fgtk_ctree_recurse): * ui-gtk.c (__internal_callback_destroy): * ui-gtk.c (__internal_callback_marshal): * ui-gtk.c (Fgtk_signal_connect): * ui-gtk.c (gtk_type_to_lisp): * ui-gtk.c (lisp_to_gtk_type): * ui-gtk.c (lisp_to_gtk_ret_type): * lisp-disunion.h: * lisp-disunion.h (NON_LVALUE): * lisp-union.h: * lisp.h (LISP_HASH): Rename: LISP_TO_VOID -> STORE_LISP_IN_VOID VOID_TO_LISP -> GET_LISP_FROM_VOID These new names are meant to clearly identify that the Lisp object is the source and void the sink, and that they can't be used the other way around -- they aren't exact opposites despite the old names. The names are also important given the new functions created just below. Also, clarify comments in lisp-union.h and lisp-disunion.h about the use of the functions. * lisp.h: New functions STORE_VOID_IN_LISP and GET_VOID_FROM_LISP. These are different from the above in that the source is a void * (previously, you had to use make_opaque_ptr()). * eval.c (restore_lisp_object): * eval.c (record_unwind_protect_restoring_lisp_object): * eval.c (struct restore_int): * eval.c (restore_int): * eval.c (record_unwind_protect_restoring_int): * eval.c (free_pointer): * eval.c (record_unwind_protect_freeing): * eval.c (free_dynarr): * eval.c (record_unwind_protect_freeing_dynarr): * eval.c (unbind_to_1): Use STORE_VOID_IN_LISP and GET_VOID_FROM_LISP to eliminate the use of make_opaque_ptr() and mostly eliminate Lisp consing entirely in the use of these various record_unwind_protect_* functions as well as internal_bind_* (e.g. internal_bind_int). * tests.c: * tests.c (Ftest_store_void_in_lisp): * tests.c (syms_of_tests): * tests.c (vars_of_tests): Add an C-assert-style test to test STORE_VOID_IN_LISP and GET_VOID_FROM_LISP to make sure the same value comes back that was put in.
author Ben Wing <ben@xemacs.org>
date Mon, 08 Feb 2010 06:42:16 -0600
parents 0784d089fdc9
children 3889ef128488 308d34e9f07d
line wrap: on
line source

;;; gtk-ffi.el --- Foreign function interface for the GTK object system

;; Copyright (C) 2000 Free Software Foundation

;; Maintainer: William Perry <wmperry@gnu.org>
;; Keywords: extensions, dumped

;; This file is part of XEmacs.

;; XEmacs is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; XEmacs is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;; General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with XEmacs; see the file COPYING.  If not, write to the Free
;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
;; 02111-1307, USA.

;;; Synched up with: Not in FSF

;;; Commentary:

;; This file is dumped with XEmacs.

(defvar gtk-type-aliases '((GtkType . guint)
			   (GdkAtom . gulong)
			   (GdkBitmap . GdkWindow)
			   (time_t    . guint)
			   (none      . void)
			   (GdkDrawable . GdkWindow)
			   (GdkBitmap . GdkWindow)
			   (GdkPixmap . GdkWindow))
  "An assoc list of aliases for commonly used GTK types that are not
really part of the object system.")

(defvar gtk-ffi-debug nil
  "If non-nil, all functions defined wiht `gtk-import-function' will be checked
for missing marshallers.")

(defun gtk-ffi-check-function (func)
  ;; We don't call gtk-main or gtk-main-quit because it thoroughly
  ;; hoses us (locks up xemacs handling events, but no lisp).
  (if (not (memq func '(gtk-main gtk-main-quit)))
      (condition-case err
	  (funcall func)
	(error
	 (case (car err)
	   (wrong-number-of-arguments nil)
	   (error
	    (if (string= "Could not locate marshaller function" (nth 1 err))
		(progn
		  (set-buffer (get-buffer-create "needed marshallers"))
		  (display-buffer (current-buffer))
		  (goto-char (point-max))
		  (insert
		   (format "%S\n"
			   (split-string
			    (substring (nth 2 err) (length "emacs_gtk_marshal_")) "_+")))))))))))

(defmacro gtk-import-function (retval name &rest args)
  (if (symbolp name)
      (setq name (symbol-name name)))
  (let ((lisp-name (intern (replace-in-string name "_" "-")))
	(doc-string nil))
    (setq retval (or (cdr-safe (assoc retval gtk-type-aliases)) retval)
	  doc-string (concat "The lisp version of " name ".\n"
			     (if args
				 (concat "Prototype: " (prin1-to-string args)))))

    ;; Drop off any naming of arguments, etc.
    (if (and args (consp (car args)))
	(setq args (mapcar 'car args)))

    ;; Get rid of any type aliases.
    (setq args (mapcar (lambda (x)
			 (or (cdr-safe (assoc x gtk-type-aliases)) x)) args))

    `(progn
       (defun ,lisp-name (&rest args)
	 ,doc-string
	 (if (not (get (quote ,lisp-name) 'gtk-ffi nil))
	     (put (quote ,lisp-name) 'gtk-ffi
		  (gtk-import-function-internal (quote ,retval) ,name
						(quote ,args))))
	 (gtk-call-function (get (quote ,lisp-name) 'gtk-ffi 'ignore) args))
       (and gtk-ffi-debug (gtk-ffi-check-function (quote ,lisp-name))))))

(defmacro gtk-import-variable (type name)
  (if (symbolp name) (setq name (symbol-name name)))
  (let ((lisp-name (intern (replace-in-string name "_" "-")))
	(doc-string nil))
    (setq type (or (cdr-safe (assoc type gtk-type-aliases)) type)
	  doc-string (concat "Retrieve the variable " name " (type: " (symbol-name type) ").\n"))
    `(defun ,lisp-name ()
       ,doc-string
       (gtk-import-variable-internal (quote ,type) ,name))))

(provide 'gtk-ffi)