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101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/* Copyright (C) 1995,1996 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*/
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#include <stdio.h>
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#include "_scm.h"
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SCM scm_sys_protects[SCM_NUM_PROTECTS];
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struct scm_root_state the_scm_root;
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struct scm_root_state * scm_root = &the_scm_root;
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/* Call thunk(closure) underneath a top-level error handler.
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* If an error occurs, pass the exitval through err_filter and return it.
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* If no error occurs, return the value of thunk.
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*/
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#ifdef _UNICOS
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typedef int setjmp_type;
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#else
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typedef long setjmp_type;
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#endif
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#ifdef __STDC__
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SCM
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scm_call_catching_errors (SCM (*thunk)(), SCM (*err_filter)(), void * closure)
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#else
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SCM
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scm_call_catching_errors (thunk, err_filter, closure)
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SCM (*thunk)();
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SCM (*err_filter)();
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void * closure;
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#endif
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{
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SCM answer;
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setjmp_type i;
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i = setjmp (SCM_JMPBUF (scm_rootcont));
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if (!i)
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{
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scm_gc_heap_lock = 0;
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answer = thunk (closure);
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}
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else
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{
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scm_gc_heap_lock = 1;
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answer = err_filter (scm_exitval, closure);
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}
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return answer;
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}
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