1/* $NetBSD: sigtypes.h,v 1.11 2017/01/12 18:29:14 christos Exp $ */
2
3/*
4 * Copyright (c) 1982, 1986, 1989, 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * @(#)signal.h 8.4 (Berkeley) 5/4/95
37 */
38
39#ifndef _SYS_SIGTYPES_H_
40#define _SYS_SIGTYPES_H_
41
42/*
43 * This header file defines various signal-related types. We also keep
44 * the macros to manipulate sigset_t here, to encapsulate knowledge of
45 * its internals.
46 */
47
48#include <sys/featuretest.h>
49#include <machine/int_types.h>
50#include <machine/ansi.h>
51
52#ifdef _BSD_SIZE_T_
53typedef _BSD_SIZE_T_ size_t;
54#undef _BSD_SIZE_T_
55#endif
56
57#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
58 defined(_NETBSD_SOURCE)
59
60typedef struct {
61 __uint32_t __bits[4];
62} sigset_t;
63
64/*
65 * Macro for manipulating signal masks.
66 */
67#define __sigmask(n) (1U << (((unsigned int)(n) - 1) & 31))
68#define __sigword(n) (((unsigned int)(n) - 1) >> 5)
69#define __sigaddset(s, n) ((s)->__bits[__sigword(n)] |= __sigmask(n))
70#define __sigdelset(s, n) ((s)->__bits[__sigword(n)] &= ~__sigmask(n))
71#define __sigismember(s, n) (((s)->__bits[__sigword(n)] & __sigmask(n)) != 0)
72#define __sigemptyset(s) ((s)->__bits[0] = 0x00000000, \
73 (s)->__bits[1] = 0x00000000, \
74 (s)->__bits[2] = 0x00000000, \
75 (s)->__bits[3] = 0x00000000)
76#define __sigsetequal(s1,s2) ((s1)->__bits[0] == (s2)->__bits[0] && \
77 (s1)->__bits[1] == (s2)->__bits[1] && \
78 (s1)->__bits[2] == (s2)->__bits[2] && \
79 (s1)->__bits[3] == (s2)->__bits[3])
80#define __sigfillset(s) ((s)->__bits[0] = 0xffffffff, \
81 (s)->__bits[1] = 0xffffffff, \
82 (s)->__bits[2] = 0xffffffff, \
83 (s)->__bits[3] = 0xffffffff)
84#define __sigplusset(s, t) \
85 do { \
86 (t)->__bits[0] |= (s)->__bits[0]; \
87 (t)->__bits[1] |= (s)->__bits[1]; \
88 (t)->__bits[2] |= (s)->__bits[2]; \
89 (t)->__bits[3] |= (s)->__bits[3]; \
90 } while (/* CONSTCOND */ 0)
91#define __sigminusset(s, t) \
92 do { \
93 (t)->__bits[0] &= ~(s)->__bits[0]; \
94 (t)->__bits[1] &= ~(s)->__bits[1]; \
95 (t)->__bits[2] &= ~(s)->__bits[2]; \
96 (t)->__bits[3] &= ~(s)->__bits[3]; \
97 } while (/* CONSTCOND */ 0)
98#define __sigandset(s, t) \
99 do { \
100 (t)->__bits[0] &= (s)->__bits[0]; \
101 (t)->__bits[1] &= (s)->__bits[1]; \
102 (t)->__bits[2] &= (s)->__bits[2]; \
103 (t)->__bits[3] &= (s)->__bits[3]; \
104 } while (/* CONSTCOND */ 0)
105
106#if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
107 (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
108typedef struct
109#if defined(_NETBSD_SOURCE)
110 sigaltstack
111#endif /* _NETBSD_SOURCE */
112 {
113 void *ss_sp; /* signal stack base */
114 size_t ss_size; /* signal stack length */
115 int ss_flags; /* SS_DISABLE and/or SS_ONSTACK */
116} stack_t;
117
118#endif /* _XOPEN_SOURCE_EXTENDED || XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */
119
120#endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || ... */
121
122#endif /* !_SYS_SIGTYPES_H_ */
123