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cleanup of code related to xfree(), better KKCC backtrace capabilities, document XD_INLINE_LISP_OBJECT_BLOCK_PTR, fix some memory leaks, other code cleanup -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-03-24 Ben Wing <ben@xemacs.org> * array.h: * array.h (XD_LISP_DYNARR_DESC): * dumper.c (pdump_register_sub): * dumper.c (pdump_store_new_pointer_offsets): * dumper.c (pdump_reloc_one_mc): * elhash.c: * gc.c (lispdesc_one_description_line_size): * gc.c (kkcc_marking): * lrecord.h: * lrecord.h (IF_NEW_GC): * lrecord.h (enum memory_description_type): * lrecord.h (enum data_description_entry_flags): * lrecord.h (struct opaque_convert_functions): Rename XD_LISP_OBJECT_BLOCK_PTR to XD_INLINE_LISP_OBJECT_BLOCK_PTR and document it in lrecord.h. * data.c: * data.c (finish_marking_weak_lists): * data.c (continue_marking_ephemerons): * data.c (finish_marking_ephemerons): * elhash.c (MARK_OBJ): * gc.c: * gc.c (lispdesc_indirect_count_1): * gc.c (struct): * gc.c (kkcc_bt_push): * gc.c (kkcc_gc_stack_push): * gc.c (kkcc_gc_stack_push_lisp_object): * gc.c (kkcc_gc_stack_repush_dirty_object): * gc.c (KKCC_DO_CHECK_FREE): * gc.c (mark_object_maybe_checking_free): * gc.c (mark_struct_contents): * gc.c (mark_lisp_object_block_contents): * gc.c (register_for_finalization): * gc.c (mark_object): * gc.h: * lisp.h: * profile.c: * profile.c (mark_profiling_info_maphash): Clean up KKCC code related to DEBUG_XEMACS. Rename kkcc_backtrace() to kkcc_backtrace_1() and add two params: a `size' arg to control how many stack elements to print and a `detailed' arg to control whether Lisp objects are printed using `debug_print()'. Create front-ends to kkcc_backtrace_1() -- kkcc_detailed_backtrace(), kkcc_short_backtrace(), kkcc_detailed_backtrace_full(), kkcc_short_backtrace_full(), as well as shortened versions kbt(), kbts(), kbtf(), kbtsf() -- to call it with various parameter values. Add an `is_lisp' field to the stack and backtrace structures and use it to keep track of whether an object pushed onto the stack is a Lisp object or a non-Lisp structure; in kkcc_backtrace_1(), don't try to print a non-Lisp structure as a Lisp object. * elhash.c: * extents.c: * file-coding.c: * lrecord.h: * lrecord.h (IF_NEW_GC): * marker.c: * marker.c (Fmarker_buffer): * mule-coding.c: * number.c: * rangetab.c: * specifier.c: New macros IF_OLD_GC(), IF_NEW_GC() to simplify declaration of Lisp objects when a finalizer may exist in one but not the other. Use them appropriately. * extents.c (finalize_extent_info): Don't zero out data->soe and data->extents before trying to free, else we get memory leaks. * lrecord.h (enum lrecord_type): Make the first lrecord type have value 1 not 0 so that 0 remains without implementation and attempts to interpret zeroed memory as a Lisp object will be more obvious. * array.c (Dynarr_free): * device-msw.c (msprinter_delete_device): * device-tty.c (free_tty_device_struct): * device-tty.c (tty_delete_device): * dialog-msw.c (handle_directory_dialog_box): * dialog-x.c: * emacs.c (free_argc_argv): * emodules.c (attempt_module_delete): * file-coding.c (chain_finalize_coding_stream_1): * file-coding.c (chain_finalize_coding_stream): * glyphs-eimage.c: * glyphs-eimage.c (jpeg_instantiate_unwind): * glyphs-eimage.c (gif_instantiate_unwind): * glyphs-eimage.c (png_instantiate_unwind): * glyphs-eimage.c (tiff_instantiate_unwind): * imgproc.c: * imgproc.c (build_EImage_quantable): * insdel.c (uninit_buffer_text): * mule-coding.c (iso2022_finalize_detection_state): * objects-tty.c (tty_finalize_color_instance): * objects-tty.c (tty_finalize_font_instance): * objects-tty.c (tty_font_list): * process.c: * process.c (finalize_process): * redisplay.c (add_propagation_runes): * scrollbar-gtk.c: * scrollbar-gtk.c (gtk_free_scrollbar_instance): * scrollbar-gtk.c (gtk_release_scrollbar_instance): * scrollbar-msw.c: * scrollbar-msw.c (mswindows_free_scrollbar_instance): * scrollbar-msw.c (unshow_that_mofo): * scrollbar-x.c (x_free_scrollbar_instance): * scrollbar-x.c (x_release_scrollbar_instance): * select-x.c: * select-x.c (x_handle_selection_request): * syntax.c: * syntax.c (uninit_buffer_syntax_cache): * text.h (eifree): If possible, whenever we call xfree() on a field in a structure, set the field to 0 afterwards. A lot of code is written so that it checks the value being freed to see if it is non-zero before freeing it -- doing this and setting the value to 0 afterwards ensures (a) we won't try to free twice if the cleanup code is called twice; (b) if the object itself stays around, KKCC won't crash when attempting to mark the freed field. * rangetab.c: Add a finalization method when not NEW_GC to avoid memory leaks. (#### We still get memory leaks when NEW_GC; need to convert gap array to Lisp object).
author Ben Wing <ben@xemacs.org>
date Wed, 24 Mar 2010 01:22:51 -0500
parents db7068430402
children ba07c880114a
line wrap: on
line source

;; 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., 51 Franklin Street - Fifth Floor,
;; Boston, MA 02111-1301, USA.  */
;;
;; To regenerate ../src/emacs-marshals.c just load this file.
;;
(defconst name-to-return-type
  '(("INT" . "gint")
    ("CALLBACK" . "GtkCallback")
    ("OBJECT" . "GtkObject *")
    ("POINTER" . "void *")
    ("STRING" . "gchar *")
    ("BOOL" . "gboolean")
    ("DOUBLE" . "gdouble")
    ("FLOAT" . "gfloat")
    ("LIST"  . "void *")
    ("NONE" . nil)))

(defvar defined-marshallers nil)

(defun get-marshaller-name (rval args)
  (concat "emacs_gtk_marshal_" rval "__"
	  (mapconcat 'identity (or args '("NONE")) "_")))

(defun define-marshaller (rval &rest args)
  (let ((name nil)
	(internal-rval (assoc rval  name-to-return-type))
	(ctr 0)
	(func-proto (format "__%s_fn" rval)))
    (if (not internal-rval)
	(error "Do not know return type of `%s'" rval))
    (setq name (get-marshaller-name rval args))

    (if (member name defined-marshallers)
	(error "Attempt to define the same marshaller more than once! %s" name))

    (set-buffer (get-buffer-create "emacs-marshals.c"))
    (goto-char (point-max))

    (if (or (member "FLOAT" args) (member "DOUBLE" args))
	;; We need to special case anything with FLOAT in the argument
	;; list or the parameters get screwed up royally.
	(progn
	  (setq func-proto (concat (format "__%s__" rval)
				   (mapconcat 'identity args "_")
				   "_fn"))
	  (insert "typedef "
		  (or (cdr internal-rval) "void")
		  " (*"
		  func-proto ")("
		  (mapconcat (lambda (x)
			       (cdr (assoc x name-to-return-type))) args ", ")
		  ");\n")))

    (insert "\n"
	    "static void\n"
	    name " (ffi_actual_function func, GtkArg *args)\n"
	    "{\n"
	    (format "  %s rfunc = (%s) func;\n" func-proto func-proto))

    (if (string= "LIST" rval) (setq rval "POINTER"))

    (if (cdr internal-rval)
	;; It has a return type to worry about
	(insert "  " (cdr internal-rval) " *return_val;\n\n"
		(format "  return_val = GTK_RETLOC_%s (args[%d]);\n" rval (length args))
		"  *return_val = ")
      (insert "  "))
    (insert "(*rfunc) (")
    (while args
      (if (/= ctr 0)
	  (insert ", "))
      (insert (format "GTK_VALUE_%s (args[%d])" (car args) ctr))
      (setq args (cdr args)
	    ctr (1+ ctr)))
    (insert ");\n")
    (insert "}\n")))

(save-excursion
  (find-file "../src/emacs-marshals.c")
  (erase-buffer)
  (setq defined-marshallers nil)

  (insert "/* This file was automatically generated by ../lisp/gtk-marshal.el */\n"
	  "/* DO NOT EDIT BY HAND!!! */\n")
  (insert "#define GTK_VALUE_ARRAY(x) GTK_VALUE_POINTER(x)\n\n")
  (insert "#define GTK_VALUE_LIST(x) GTK_VALUE_POINTER(x)\n\n")

  (let ((todo '(
		("BOOL" "OBJECT" "INT")
		("BOOL" "OBJECT" "OBJECT" "OBJECT")
		("BOOL" "OBJECT" "OBJECT")
		("BOOL" "OBJECT" "POINTER")
		("BOOL" "OBJECT" "STRING")
		("BOOL" "OBJECT")
		("BOOL" "POINTER" "BOOL")
		("BOOL" "POINTER")
		("BOOL")
		("FLOAT" "OBJECT" "FLOAT")
		("FLOAT" "OBJECT")
		("INT" "BOOL")
		("INT" "OBJECT" "ARRAY")
		("INT" "OBJECT" "INT" "ARRAY")
		("INT" "OBJECT" "INT" "INT")
		("INT" "OBJECT" "INT" "STRING")
		("INT" "OBJECT" "INT")
		("INT" "OBJECT" "OBJECT")
		("INT" "OBJECT" "POINTER" "INT" "INT")
		("INT" "OBJECT" "POINTER" "INT")
		("INT" "OBJECT" "POINTER")
		("INT" "OBJECT" "STRING")
		("INT" "OBJECT")
		("INT" "POINTER" "INT")
		("INT" "POINTER" "STRING" "INT")
		("INT" "POINTER" "STRING" "STRING")
		("INT" "POINTER" "STRING")
		("INT" "POINTER")
		("INT" "STRING" "STRING" "INT" "ARRAY")
		("INT" "STRING")
		("INT")
		("LIST" "OBJECT")
		("LIST")
		("NONE" "BOOL")
		("NONE" "INT" "INT" "INT" "INT")
		("NONE" "INT" "INT")
		("NONE" "INT")
		("NONE" "OBJECT" "BOOL" "INT")
		("NONE" "OBJECT" "BOOL")
		("NONE" "OBJECT" "FLOAT" "FLOAT" "FLOAT" "BOOL")
		("NONE" "OBJECT" "FLOAT" "FLOAT" "FLOAT" "FLOAT")
		("NONE" "OBJECT" "FLOAT" "FLOAT" "FLOAT")
		("NONE" "OBJECT" "FLOAT" "FLOAT")
		("NONE" "OBJECT" "FLOAT")
		("NONE" "OBJECT" "INT" "BOOL")
		("NONE" "OBJECT" "INT" "FLOAT" "BOOL")
		("NONE" "OBJECT" "INT" "FLOAT")
		("NONE" "OBJECT" "INT" "INT" "ARRAY" "ARRAY" "ARRAY" "ARRAY" "ARRAY" "ARRAY")
		("NONE" "OBJECT" "INT" "INT" "ARRAY")
		("NONE" "OBJECT" "INT" "INT" "FLOAT" "FLOAT")
		("NONE" "OBJECT" "INT" "INT" "INT" "INT")
		("NONE" "OBJECT" "INT" "INT" "INT")
		("NONE" "OBJECT" "INT" "INT" "POINTER" "POINTER")
		("NONE" "OBJECT" "INT" "INT" "POINTER")
		("NONE" "OBJECT" "INT" "INT" "STRING" "INT" "POINTER" "POINTER")
		("NONE" "OBJECT" "INT" "INT" "STRING")
		("NONE" "OBJECT" "INT" "INT")
		("NONE" "OBJECT" "INT" "OBJECT")
		("NONE" "OBJECT" "INT" "POINTER")
		("NONE" "OBJECT" "INT" "STRING")
		("NONE" "OBJECT" "INT")
		("NONE" "OBJECT" "LIST" "INT")
		("NONE" "OBJECT" "LIST")
		("NONE" "OBJECT" "OBJECT" "BOOL" "BOOL" "INT" "INT")
		("NONE" "OBJECT" "OBJECT" "BOOL" "BOOL" "INT")
		("NONE" "OBJECT" "OBJECT" "BOOL" "BOOL")
		("NONE" "OBJECT" "OBJECT" "FLOAT" "INT")
		("NONE" "OBJECT" "OBJECT" "INT" "INT" "INT" "INT" "INT" "INT" "INT" "INT")
		("NONE" "OBJECT" "OBJECT" "INT" "INT" "INT" "INT")
		("NONE" "OBJECT" "OBJECT" "INT" "INT" "INT")
		("NONE" "OBJECT" "OBJECT" "INT" "INT")
		("NONE" "OBJECT" "OBJECT" "INT")
		("NONE" "OBJECT" "OBJECT" "OBJECT" "INT")
		("NONE" "OBJECT" "OBJECT" "OBJECT" "OBJECT" "INT")
		("NONE" "OBJECT" "OBJECT" "OBJECT" "OBJECT")
		("NONE" "OBJECT" "OBJECT" "OBJECT" "POINTER" "POINTER" "INT" "INT")
		("NONE" "OBJECT" "OBJECT" "OBJECT")
		("NONE" "OBJECT" "OBJECT" "POINTER")
		("NONE" "OBJECT" "OBJECT" "STRING" "INT" "INT" "INT" "INT" "INT")
		("NONE" "OBJECT" "OBJECT" "STRING" "STRING" "INT")
		("NONE" "OBJECT" "OBJECT" "STRING" "STRING")
		("NONE" "OBJECT" "OBJECT" "STRING")
		("NONE" "OBJECT" "OBJECT")
		("NONE" "OBJECT" "POINTER" "BOOL")
		("NONE" "OBJECT" "POINTER" "INT" "FLOAT" "FLOAT")
		("NONE" "OBJECT" "POINTER" "INT" "INT" "INT")
		("NONE" "OBJECT" "POINTER" "INT" "INT")
		("NONE" "OBJECT" "POINTER" "INT" "POINTER" "POINTER")
		("NONE" "OBJECT" "POINTER" "INT" "POINTER")
		("NONE" "OBJECT" "POINTER" "INT" "STRING" "INT" "POINTER" "POINTER")
		("NONE" "OBJECT" "POINTER" "INT" "STRING")
		("NONE" "OBJECT" "POINTER" "INT")
		("NONE" "OBJECT" "POINTER" "POINTER" "INT" "INT" "INT" "INT" "INT" "INT")
		("NONE" "OBJECT" "POINTER" "POINTER" "POINTER" "STRING" "INT")
		("NONE" "OBJECT" "POINTER" "POINTER" "POINTER")
		("NONE" "OBJECT" "POINTER" "POINTER")
		("NONE" "OBJECT" "POINTER" "STRING" "INT" "POINTER" "POINTER" "POINTER" "POINTER" "BOOL" "BOOL")
		("NONE" "OBJECT" "POINTER")
		("NONE" "OBJECT" "STRING" "BOOL")
		("NONE" "OBJECT" "STRING" "INT" "INT" "INT")
		("NONE" "OBJECT" "STRING" "POINTER" "INT" "INT" "INT")
		("NONE" "OBJECT" "STRING" "POINTER" "INT" "INT")
		("NONE" "OBJECT" "STRING" "STRING")
		("NONE" "OBJECT" "STRING")
		("NONE" "OBJECT")
		("NONE" "POINTER" "INT" "INT")
		("NONE" "POINTER" "INT")
		("NONE" "POINTER" "POINTER" "BOOL" "INT" "INT" "INT" "INT" "INT" "INT")
		("NONE" "POINTER" "POINTER" "BOOL" "INT" "INT" "INT" "INT")
		("NONE" "POINTER" "POINTER" "INT" "INT" "INT" "INT")
		("NONE" "POINTER" "POINTER" "INT" "INT")
		("NONE" "POINTER" "POINTER" "POINTER" "INT" "INT" "STRING" "INT")
		("NONE" "POINTER" "POINTER" "POINTER" "INT" "INT" "STRING")
		("NONE" "POINTER" "POINTER" "POINTER" "POINTER")
		("NONE" "POINTER" "POINTER")
		("NONE" "POINTER" "STRING" "STRING")
		("NONE" "POINTER" "STRING")
		("NONE" "POINTER")
		("NONE")
		("OBJECT" "BOOL" "BOOL" "INT")
		("OBJECT" "BOOL" "INT")
		("OBJECT" "FLOAT" "FLOAT" "FLOAT" "FLOAT" "FLOAT" "FLOAT")
		("OBJECT" "FLOAT" "FLOAT" "FLOAT" "FLOAT" "FLOAT")
		("OBJECT" "FLOAT" "FLOAT" "FLOAT" "FLOAT")
		("OBJECT" "INT" "ARRAY")
		("OBJECT" "INT" "BOOL" "BOOL")
		("OBJECT" "INT" "INT" "ARRAY")
		("OBJECT" "INT" "INT" "BOOL")
		("OBJECT" "INT" "INT" "STRING")
		("OBJECT" "INT" "INT")
		("OBJECT" "INT")
		("OBJECT" "OBJECT" "FLOAT" "INT")
		("OBJECT" "OBJECT" "INT")
		("OBJECT" "OBJECT" "OBJECT")
		("OBJECT" "OBJECT" "STRING" "INT" "INT" "INT" "INT" "INT")
		("OBJECT" "OBJECT" "STRING" "INT" "INT" "INT" "INT")
		("OBJECT" "OBJECT" "STRING" "INT" "INT")
		("OBJECT" "OBJECT" "STRING")
		("OBJECT" "OBJECT")
		("OBJECT" "POINTER" "POINTER")
		("OBJECT" "POINTER" "STRING")
		("OBJECT" "POINTER")
		("OBJECT" "STRING" "FLOAT" "FLOAT" "FLOAT" "BOOL")
		("OBJECT" "STRING" "INT" "STRING" "STRING")
		("OBJECT" "STRING" "OBJECT")
		("OBJECT" "STRING" "STRING" "STRING" "ARRAY" "STRING" "STRING")
		("OBJECT" "STRING" "STRING")
		("OBJECT" "STRING")
		("OBJECT")
		("POINTER" "INT" "INT")
		("POINTER" "INT")
		("POINTER" "OBJECT" "INT" "INT")
		("POINTER" "OBJECT" "INT")
		("POINTER" "OBJECT" "POINTER" "INT")
		("POINTER" "OBJECT" "POINTER" "POINTER" "ARRAY" "INT" "POINTER" "POINTER" "POINTER" "POINTER" "BOOL" "BOOL")
		("POINTER" "OBJECT" "POINTER")
		("POINTER" "OBJECT")
		("POINTER" "POINTER")
		("POINTER" "STRING" "INT")
		("POINTER")
		("STRING" "INT" "INT" "INT")
		("STRING" "INT")
		("STRING" "OBJECT" "BOOL")
		("STRING" "OBJECT" "FLOAT")
		("STRING" "OBJECT" "INT" "INT")
		("STRING" "OBJECT" "INT")
		("STRING" "OBJECT")
		("STRING" "POINTER" "STRING")
		("STRING" "POINTER")
		("STRING")
		)
	      )
	)
    (mapc (lambda (x) (apply 'define-marshaller x)) todo)

    (insert "\n
#include \"hash.h\"

static struct hash_table *marshaller_hashtable;

static void initialize_marshaller_storage (void)
{
	if (!marshaller_hashtable)
	{
		marshaller_hashtable = make_string_hash_table (100);
")
    
    (mapc (lambda (x)
	    (let ((name (get-marshaller-name (car x) (cdr x))))
	      (insert (format "\t\tputhash (\"%s\", (void *) %s, marshaller_hashtable);\n" name name))))
	  todo)
    (insert "\t};\n"
	    "}\n"
	    "
static void *find_marshaller (const char *func_name)
{
	void *fn = NULL;
	initialize_marshaller_storage ();

	if (gethash (func_name, marshaller_hashtable, (const void **)&fn))
	{
		return (fn);
	}

	return (NULL);
}
"))

  (save-buffer)
  (kill-buffer "emacs-marshals.c"))