2 * This file has been modified for the cdrkit suite.
4 * The behaviour and appearence of the program code below can differ to a major
5 * extent from the version distributed by the original author(s).
7 * For details, see Changelog file distributed with the cdrkit package. If you
8 * received this file from another source then ask the distributing person for
9 * a log of modifications.
13 /* @(#)sigdefs.h 1.5 02/01/19 Copyright 1997 J. Schilling */
15 * Signal abstraction for BSD/SVR4 signals
17 * Copyright (c) 1997 J. Schilling
20 * This program is free software; you can redistribute it and/or modify
21 * it under the terms of the GNU General Public License version 2
22 * as published by the Free Software Foundation.
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
29 * You should have received a copy of the GNU General Public License along with
30 * this program; see the file COPYING. If not, write to the Free Software
31 * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
43 * Try to by default use the function that sets up signal handlers in a way
44 * that does not reset the handler after it has been called.
49 #ifdef HAVE_SIGPROCMASK
50 #define block_sigs(a) { \
54 sigprocmask(SIG_BLOCK, &__new, &a);\
56 #define unblock_sig(s) { \
59 sigemptyset(&__new); \
60 sigaddset(&__new, (s)); \
61 sigprocmask(SIG_UNBLOCK, &__new, NULL);\
63 #define restore_sigs(a) sigprocmask(SIG_SETMASK, &a, 0);
65 #else /* !HAVE_SIGPROCMASK */
68 #define block_sigs(a) a = sigblock(0xFFFFFFFF)
69 #define restore_sigs(a) sigsetmask(a);
70 #define unblock_sig(s) { \
75 __new = __old & ~__new; \
79 #endif /* HAVE_SIGPROCMASK */
81 #endif /* _SIGDEFS_H */