1/*-
2 * Copyright (c) 2005 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Frank van der Linden.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#ifndef _LINUX_SIGEVENT_H
31#define _LINUX_SIGEVENT_H
32
33#define LINUX_SIGEV_SIGNAL    0       /* notify via signal */
34#define LINUX_SIGEV_NONE      1       /* other notification: meaningless */
35#define LINUX_SIGEV_THREAD    2       /* deliver via thread creation */
36#define LINUX_SIGEV_THREAD_ID 4       /* deliver to thread */
37
38#define LINUX_SIGEV_MAX  64
39#ifndef LINUX_SIGEV_PAD
40#define LINUX_SIGEV_PAD  ((LINUX_SIGEV_MAX -				\
41			   (sizeof(sigval_t) + (sizeof(int) * 2))) /	\
42			  sizeof(int))
43#endif
44
45typedef struct linux_sigevent {
46	sigval_t sigev_value;		/* sizeof(pointer) */
47	int sigev_signo;
48	int sigev_notify;
49	/* guaranteed to have natural pointer alignment */
50	union {
51		int pad[LINUX_SIGEV_PAD];
52		int tid;
53		struct {
54			void (*func)(sigval_t);
55			void *attr;
56		} _sigev_thread;
57	} _sigev_un;
58} linux_sigevent_t;
59
60int	linux_to_native_sigevent(struct sigevent *,
61	    const struct linux_sigevent *);
62int	linux_sigevent_copyin(const void *, void *, size_t);
63
64#endif /* _LINUX_SIGEVENT_H */
65