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47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
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* Copyright (c) 2000-2001 Proofpoint, Inc. and its suppliers.
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* All rights reserved.
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the sendmail distribution.
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*
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* $Id: setjmp.h,v 1.4 2013-11-22 20:51:31 ca Exp $
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*/
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#ifndef SM_SETJMP_H
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# define SM_SETJMP_H
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# include <sm/config.h>
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# include <setjmp.h>
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/*
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** sm_setjmp_sig is a setjmp that saves the signal mask.
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** sm_setjmp_nosig is a setjmp that does *not* save the signal mask.
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** SM_JMPBUF_T is used with both of the above macros.
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**
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** On most systems, these can be implemented using sigsetjmp.
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** Some old BSD systems do not have sigsetjmp, but they do have
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** setjmp and _setjmp, which are just as good.
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*/
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# if SM_CONF_SIGSETJMP
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typedef sigjmp_buf SM_JMPBUF_T;
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# define sm_setjmp_sig(buf) sigsetjmp(buf, 1)
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# define sm_setjmp_nosig(buf) sigsetjmp(buf, 0)
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# define sm_longjmp_sig(buf, val) siglongjmp(buf, val)
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# define sm_longjmp_nosig(buf, val) siglongjmp(buf, val)
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# else /* SM_CONF_SIGSETJMP */
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typedef jmp_buf SM_JMPBUF_T;
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# define sm_setjmp_sig(buf) setjmp(buf)
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# define sm_longjmp_sig(buf, val) longjmp(buf, val)
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# define sm_setjmp_nosig(buf) _setjmp(buf)
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# define sm_longjmp_nosig(buf, val) _longjmp(buf, val)
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# endif /* SM_CONF_SIGSETJMP */
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#endif /* ! SM_SETJMP_H */
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