sigev_thread.h revision 272461 
150397Sobrien/*
250397Sobrien * Copyright (c) 2005 David Xu <davidxu@freebsd.org>
350397Sobrien * All rights reserved.
450397Sobrien *
550397Sobrien * Redistribution and use in source and binary forms, with or without
650397Sobrien * modification, are permitted provided that the following conditions
750397Sobrien * are met:
850397Sobrien * 1. Redistributions of source code must retain the above copyright
950397Sobrien *    notice unmodified, this list of conditions, and the following
1050397Sobrien *    disclaimer.
1150397Sobrien * 2. Redistributions in binary form must reproduce the above copyright
1250397Sobrien *    notice, this list of conditions and the following disclaimer in the
1350397Sobrien *    documentation and/or other materials provided with the distribution.
1450397Sobrien *
1550397Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
1650397Sobrien * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
1750397Sobrien * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
1850397Sobrien * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
1950397Sobrien * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
2050397Sobrien * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
2150397Sobrien * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
2290075Sobrien * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
2390075Sobrien * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
2490075Sobrien * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2550397Sobrien *
26117395Skan * $FreeBSD: releng/10.1/lib/librt/sigev_thread.h 233519 2012-03-26 19:12:09Z rmh $
2750397Sobrien *
2850397Sobrien */
2950397Sobrien
3050397Sobrien#ifndef _SIGEV_THREAD_H_
3150397Sobrien#define _SIGEV_THREAD_H_
3250397Sobrien
3350397Sobrien#include <sys/types.h>
3450397Sobrien#include <sys/queue.h>
3550397Sobrien
3650397Sobrienstruct sigev_thread;
3750397Sobrienstruct sigev_node;
3850397Sobrien
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