sigev_thread.h revision 331722 
1/*
2 * Copyright (c) 2005 David Xu <davidxu@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice unmodified, this list of conditions, and the following
10 *    disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/11/lib/librt/sigev_thread.h 331722 2018-03-29 02:50:57Z eadler $
27 *
28 */
29
30#ifndef _SIGEV_THREAD_H_
31#define _SIGEV_THREAD_H_
32
33#include <sys/types.h>
34#include <sys/queue.h>
35
36struct sigev_thread;
37struct sigev_node;
38
39typedef uintptr_t	sigev_id_t;
40typedef void		(*sigev_dispatch_t)(struct sigev_node *);
41
42struct sigev_node {
43	LIST_ENTRY(sigev_node)		sn_link;
44	int				sn_type;
45	sigev_id_t			sn_id;
46	sigev_dispatch_t		sn_dispatch;
47	union sigval			sn_value;
48	void 				*sn_func;
49	int				sn_flags;
50	int				sn_gen;
51	siginfo_t			sn_info;
52	pthread_attr_t			sn_attr;
53	struct sigev_thread		*sn_tn;
54};
55
56
57struct sigev_thread {
58	LIST_ENTRY(sigev_thread)	tn_link;
59	pthread_t			tn_thread;
60	struct sigev_node		*tn_cur;
61	int				tn_refcount;
62	long				tn_lwpid;
63	pthread_cond_t			tn_cv;
64};
65
66#define	SNF_WORKING		0x01
67#define	SNF_REMOVED		0x02
68#define	SNF_SYNC		0x04
69
70int	__sigev_check_init();
71struct sigev_node *__sigev_alloc(int, const struct sigevent *,
72	struct sigev_node *, int);
73struct sigev_node *__sigev_find(int, sigev_id_t);
74void	__sigev_get_sigevent(struct sigev_node *, struct sigevent *,
75		sigev_id_t);
76int	__sigev_register(struct sigev_node *);
77int	__sigev_delete(int, sigev_id_t);
78int	__sigev_delete_node(struct sigev_node *);
79void	__sigev_list_lock(void);
80void	__sigev_list_unlock(void);
81void	__sigev_free(struct sigev_node *);
82
83#endif
84