setjmp.h revision 266692 
1/*
2 * Copyright (c) 2000-2001 Proofpoint, Inc. and its suppliers.
3 *	All rights reserved.
4 *
5 * By using this file, you agree to the terms and conditions set
6 * forth in the LICENSE file which can be found at the top level of
7 * the sendmail distribution.
8 *
9 *	$Id: setjmp.h,v 1.4 2013-11-22 20:51:31 ca Exp $
10 */
11
12#ifndef SM_SETJMP_H
13# define SM_SETJMP_H
14
15# include <sm/config.h>
16# include <setjmp.h>
17
18/*
19**  sm_setjmp_sig is a setjmp that saves the signal mask.
20**  sm_setjmp_nosig is a setjmp that does *not* save the signal mask.
21**  SM_JMPBUF_T is used with both of the above macros.
22**
23**  On most systems, these can be implemented using sigsetjmp.
24**  Some old BSD systems do not have sigsetjmp, but they do have
25**  setjmp and _setjmp, which are just as good.
26*/
27
28# if SM_CONF_SIGSETJMP
29
30typedef sigjmp_buf SM_JMPBUF_T;
31#  define sm_setjmp_sig(buf)		sigsetjmp(buf, 1)
32#  define sm_setjmp_nosig(buf)		sigsetjmp(buf, 0)
33#  define sm_longjmp_sig(buf, val)	siglongjmp(buf, val)
34#  define sm_longjmp_nosig(buf, val)	siglongjmp(buf, val)
35
36# else /* SM_CONF_SIGSETJMP */
37
38typedef jmp_buf SM_JMPBUF_T;
39#  define sm_setjmp_sig(buf)		setjmp(buf)
40#  define sm_longjmp_sig(buf, val)	longjmp(buf, val)
41#   define sm_setjmp_nosig(buf)		_setjmp(buf)
42#   define sm_longjmp_nosig(buf, val)	_longjmp(buf, val)
43
44# endif /* SM_CONF_SIGSETJMP */
45
46#endif /* ! SM_SETJMP_H */
47