1 /* The proper definitions for Linux/MIPS's sigaction.
2 Copyright (C) 1993, 1994, 1995, 1997, 1998 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 Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 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 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
21 # error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
24 /* Structure describing the action to be taken when a signal arrives. */
28 unsigned int sa_flags
;
31 #ifdef __USE_POSIX199309
34 /* Used if SA_SIGINFO is not set. */
35 __sighandler_t sa_handler
;
36 /* Used if SA_SIGINFO is set. */
37 void (*sa_sigaction
) __PMT ((int, siginfo_t
*, void *));
40 # define sa_handler __sigaction_handler.sa_handler
41 # define sa_sigaction __sigaction_handler.sa_sigaction
43 __sighandler_t sa_handler
;
45 /* Additional set of signals to be blocked. */
48 /* The ABI says here are two unused ints following. */
49 /* Restore handler. */
50 void (*sa_restorer
) __PMT ((void));
52 #if _MIPS_ISA == _MIPS_ISA_MIPS1 || _MIPS_ISA == _MIPS_ISA_MIPS2
57 /* Bits in `sa_flags'. */
58 #define SA_NOCLDSTOP 0x00020000 /* Don't send SIGCHLD when children stop. */
59 #define SA_SIGINFO 0x00000008 /* Invoke signal-catching function with
60 three arguments instead of one. */
61 #if defined __USE_UNIX98 || defined __USE_MISC
62 # define SA_ONSTACK 0x00000001 /* Use signal stack by using `sa_restorer'. */
63 # define SA_RESTART 0x00000004 /* Restart syscall on signal return. */
64 # define SA_NODEFER 0x00000010 /* Don't automatically block the signal when
65 its handler is being executed. */
68 # define SA_INTERRUPT 0x01000000 /* Historical no-op. */
70 /* Some aliases for the SA_ constants. */
71 # define SA_NOMASK SA_NODEFER
72 # define SA_ONESHOT SA_RESETHAND
73 # define SA_STACK SA_ONSTACK
76 /* Values for the HOW argument to `sigprocmask'. */
77 #define SIG_NOP 0 /* 0 is unused to catch errors */
78 #define SIG_BLOCK 1 /* Block signals. */
79 #define SIG_UNBLOCK 2 /* Unblock signals. */
80 #define SIG_SETMASK 3 /* Set the set of blocked signals. */
82 # define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility:
83 set only the low 32 bit of the sigset. */