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 30 typedef 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 38 typedef 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