Mercurial > hg > xemacs-beta
view src/objects-tty-impl.h @ 4847:05c519de7353
be more careful when printing to check for bad objects
-------------------- ChangeLog entries follow: --------------------
src/ChangeLog addition:
2010-01-13 Ben Wing <ben@xemacs.org>
* print.c:
* print.c (internal_object_printer):
* print.c (enum printing_badness):
* print.c (printing_major_badness):
* print.c (print_internal):
Clean up the part of the code that looks for things that might
lead to crashing in the print code:
-- Make the "badness" messages more consistent.
-- Move the checks for circularities after the checks for bad
memory, since the checks for circularities involve accessing
memory (which could be bad).
-- Add an extra check to see if the object's implementation structure
is bad memory.
-- Add extra check for object itself being a null pointer or
implementation pointer being null.
-- Add some extra comments to help in maintaining the code.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Wed, 13 Jan 2010 06:02:42 -0600 |
| parents | 141c2920ea48 |
| children | e0db3c197671 |
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/* TTY-specific Lisp objects. Copyright (C) 1995 Board of Trustees, University of Illinois. Copyright (C) 1995 Ben Wing 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. */ #ifndef INCLUDED_objects_tty_impl_h_ #define INCLUDED_objects_tty_impl_h_ #include "objects-impl.h" #include "objects-tty.h" struct tty_color_instance_data { #ifdef NEW_GC struct lrecord_header header; #endif /* NEW_GC */ Lisp_Object symbol; /* so we don't have to constantly call Fintern() */ }; #ifdef NEW_GC DECLARE_LRECORD (tty_color_instance_data, struct tty_color_instance_data); #define XTTY_COLOR_INSTANCE_DATA(x) \ XRECORD (x, tty_color_instance_data, struct tty_color_instance_data) #define wrap_tty_color_instance_data(p) \ wrap_record (p, tty_color_instance_data) #define TTY_COLOR_INSTANCE_DATAP(x) RECORDP (x, tty_color_instance_data) #define CHECK_TTY_COLOR_INSTANCE_DATA(x) \ CHECK_RECORD (x, tty_color_instance_data) #define CONCHECK_TTY_COLOR_INSTANCE_DATA(x) \ CONCHECK_RECORD (x, tty_color_instance_data) #endif /* NEW_GC */ #define TTY_COLOR_INSTANCE_DATA(c) \ ((struct tty_color_instance_data *) (c)->data) #define COLOR_INSTANCE_TTY_SYMBOL(c) (TTY_COLOR_INSTANCE_DATA (c)->symbol) struct tty_font_instance_data { #ifdef NEW_GC struct lrecord_header header; #endif /* NEW_GC */ Lisp_Object charset; }; #ifdef NEW_GC DECLARE_LRECORD (tty_font_instance_data, struct tty_font_instance_data); #define XTTY_FONT_INSTANCE_DATA(x) \ XRECORD (x, tty_font_instance_data, struct tty_font_instance_data) #define wrap_tty_font_instance_data(p) \ wrap_record (p, tty_font_instance_data) #define TTY_FONT_INSTANCE_DATAP(x) RECORDP (x, tty_font_instance_data) #define CHECK_TTY_FONT_INSTANCE_DATA(x) \ CHECK_RECORD (x, tty_font_instance_data) #define CONCHECK_TTY_FONT_INSTANCE_DATA(x) \ CONCHECK_RECORD (x, tty_font_instance_data) #endif /* NEW_GC */ #define TTY_FONT_INSTANCE_DATA(c) \ ((struct tty_font_instance_data *) (c)->data) #define FONT_INSTANCE_TTY_CHARSET(c) (TTY_FONT_INSTANCE_DATA (c)->charset) #endif /* INCLUDED_objects_tty_impl_h_ */