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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 0bcc1e4dfd91
children 19a72041c5ed
line wrap: on
line source

/* sysdll.h --- system dependent support for dynamic linked libraries
   Copyright (C) 1998 Free Software Foundation, Inc.
   Author:  William Perry <wmperry@aventail.com>

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.  */

#ifndef INCLUDED_sysdll_h_
#define INCLUDED_sysdll_h_

BEGIN_C_DECLS

typedef void * dll_handle;
typedef void * dll_func;
typedef void * dll_var;

extern dll_handle dll_open (Lisp_Object);
extern int dll_close (dll_handle);
extern dll_func dll_function (dll_handle, const CIbyte *);
extern dll_var dll_variable (dll_handle, const CIbyte *);
extern Lisp_Object dll_error (void);

/* More stand-ins ... */

#define Qdll_filename_encoding Qfile_name
#define Qdll_function_name_encoding Qnative

END_C_DECLS

#endif /* INCLUDED_sysdll_h_ */