50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
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/* Declarations for handling faults in the signal thread.
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Copyright (C) 1994 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C 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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#ifndef _HURD_FAULT_H
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#define _HURD_FAULT_H
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#include <setjmp.h>
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/* Call this before code that might fault in the signal thread; SIGNO is
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the signal expected to possibly arrive. This behaves like setjmp: it
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returns zero the first time, and returns again nonzero if the signal
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does arrive. */
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#define _hurdsig_catch_fault(signo) \
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(_hurdsig_fault_expect_signo = (signo), setjmp (_hurdsig_fault_env))
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/* Call this at the end of a section protected by _hurdsig_catch_fault. */
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#define _hurdsig_end_catch_fault() \
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(_hurdsig_fault_expect_signo = 0)
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extern jmp_buf _hurdsig_fault_env;
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extern int _hurdsig_fault_expect_signo;
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/* If _hurdsig_catch_fault returns nonzero, these variables
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contain information about the signal that arrived. */
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extern long int _hurdsig_fault_sigcode;
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extern int _hurdsig_fault_sigerror;
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#endif /* hurd/fault.h */
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