1 /* Definitions for Linux/ia64 sigaction.
2 Copyright (C) 1996, 1997, 2000, 2003 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
20 # error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
23 /* Structure describing the action to be taken when a signal arrives. */
25 #ifdef __USE_POSIX199309
27 __sighandler_t sa_handler;
28 void (*sa_sigaction)(int, siginfo_t *, void *);
29 } __sigaction_handler;
30 # define sa_handler __sigaction_handler.sa_handler
31 # define sa_sigaction __sigaction_handler.sa_sigaction
33 __sighandler_t sa_handler;
35 unsigned long sa_flags;
37 /* IA64 has no sa_restorer field. */
40 /* Bits in `sa_flags'. */
41 #define SA_NOCLDSTOP 0x00000001 /* Don't send SIGCHLD when children stop. */
42 #define SA_NOCLDWAIT 0x00000002 /* Don't create zombie on child death. */
43 #define SA_SIGINFO 0x00000004
44 #if defined __USE_UNIX98 || defined __USE_MISC
45 # define SA_ONSTACK 0x08000000 /* Use signal stack by using `sa_restorer'. */
46 # define SA_RESTART 0x10000000 /* Restart syscall on signal return. */
47 # define SA_NODEFER 0x40000000 /* Don't automatically block the signal
48 when its handler is being executed. */
49 # define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler. */
52 # define SA_INTERRUPT 0x20000000 /* Historic no-op. */
54 /* Some aliases for the SA_ constants. */
55 # define SA_NOMASK SA_NODEFER
56 # define SA_ONESHOT SA_RESETHAND
57 # define SA_STACK SA_ONSTACK
60 /* Values for the HOW argument to `sigprocmask'. */
61 #define SIG_BLOCK 0 /* for blocking signals */
62 #define SIG_UNBLOCK 1 /* for unblocking signals */
63 #define SIG_SETMASK 2 /* for setting the signal mask */