1 /* 2 * Copyright (c) 2000-2001 Sendmail, 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 1.3 2001/03/08 03:23:08 ca Exp $ 10 */ 11 12 #pragma ident "%Z%%M% %I% %E% SMI" 13 14 #ifndef SM_SETJMP_H 15 # define SM_SETJMP_H 16 17 # include <sm/config.h> 18 # include <setjmp.h> 19 20 /* 21 ** sm_setjmp_sig is a setjmp that saves the signal mask. 22 ** sm_setjmp_nosig is a setjmp that does *not* save the signal mask. 23 ** SM_JMPBUF_T is used with both of the above macros. 24 ** 25 ** On most systems, these can be implemented using sigsetjmp. 26 ** Some old BSD systems do not have sigsetjmp, but they do have 27 ** setjmp and _setjmp, which are just as good. 28 */ 29 30 # if SM_CONF_SIGSETJMP 31 32 typedef sigjmp_buf SM_JMPBUF_T; 33 # define sm_setjmp_sig(buf) sigsetjmp(buf, 1) 34 # define sm_setjmp_nosig(buf) sigsetjmp(buf, 0) 35 # define sm_longjmp_sig(buf, val) siglongjmp(buf, val) 36 # define sm_longjmp_nosig(buf, val) siglongjmp(buf, val) 37 38 # else /* SM_CONF_SIGSETJMP */ 39 40 typedef jmp_buf SM_JMPBUF_T; 41 # define sm_setjmp_sig(buf) setjmp(buf) 42 # define sm_longjmp_sig(buf, val) longjmp(buf, val) 43 # define sm_setjmp_nosig(buf) _setjmp(buf) 44 # define sm_longjmp_nosig(buf, val) _longjmp(buf, val) 45 46 # endif /* SM_CONF_SIGSETJMP */ 47 48 #endif /* ! SM_SETJMP_H */ 49