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try harder to avoid crashing when debug-printing -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-01-18 Ben Wing <ben@xemacs.org> * lisp.h: * print.c: New variable `in_debug_print'. * alloc.c: * alloc.c (free_managed_lcrecord): If gc_in_progress and in_debug_print, just return instead of crashing. This only happens when the programmer calls debug_print() or a variation inside of a debugger, and is probably already diagnosing a crash. * print.c (struct debug_bindings): * print.c (debug_prin1_exit): * print.c (debug_prin1): At entrance, record the old value of in_debug_print in the debug_bindings, set up an unwind-protect to restore the old value, and set in_debug_print to 1. In the unwind-protect, restore the old value.
author Ben Wing <ben@xemacs.org>
date Mon, 18 Jan 2010 06:05:21 -0600
parents 141c2920ea48
children e0db3c197671
line wrap: on
line source

/* 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_ */