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77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/* classes: h_files */
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#ifndef SCM_STACKCHK_H
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#define SCM_STACKCHK_H
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/* Copyright (C) 1995,1996,1998,2000 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "libguile/__scm.h"
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#include "libguile/continuations.h"
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#ifdef DEBUG_EXTENSIONS
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#include "libguile/debug.h"
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#endif
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/* With debug extensions we have the possibility to use the debug options
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* to disable stack checking.
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*/
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#ifdef DEBUG_EXTENSIONS
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#define SCM_STACK_CHECKING_P SCM_STACK_LIMIT
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#else
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/* *fixme* This option should be settable also without debug extensions. */
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#define SCM_STACK_LIMIT 100000
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#define SCM_STACK_CHECKING_P 1
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#endif
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#ifdef STACK_CHECKING
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# if SCM_STACK_GROWS_UP
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# define SCM_STACK_OVERFLOW_P(s)\
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(s > ((SCM_STACKITEM *) SCM_BASE (scm_rootcont) + SCM_STACK_LIMIT))
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# else
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# define SCM_STACK_OVERFLOW_P(s)\
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(s < ((SCM_STACKITEM *) SCM_BASE (scm_rootcont) - SCM_STACK_LIMIT))
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# endif
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# define SCM_CHECK_STACK\
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{\
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SCM_STACKITEM stack;\
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if (SCM_STACK_OVERFLOW_P (&stack) && scm_stack_checking_enabled_p)\
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scm_report_stack_overflow ();\
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}
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#else
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# define SCM_CHECK_STACK /**/
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#endif /* STACK_CHECKING */
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SCM_API int scm_stack_checking_enabled_p;
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SCM_API void scm_report_stack_overflow (void);
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SCM_API long scm_stack_size (SCM_STACKITEM *start);
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SCM_API void scm_stack_report (void);
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SCM_API void scm_init_stackchk (void);
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#endif /* SCM_STACKCHK_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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