1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2011 NetApp, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef	_MEVENT_H_
30#define	_MEVENT_H_
31
32enum ev_type {
33	EVF_READ,
34	EVF_WRITE,
35	EVF_TIMER,
36	EVF_SIGNAL,
37	EVF_VNODE,
38};
39
40/* Filter flags for EVF_VNODE */
41#define	EVFF_ATTRIB	0x0001
42
43struct mevent;
44
45struct mevent *mevent_add(int fd, enum ev_type type,
46			  void (*func)(int, enum ev_type, void *),
47			  void *param);
48struct mevent *mevent_add_flags(int fd, enum ev_type type, int fflags,
49			  void (*func)(int, enum ev_type, void *),
50			  void *param);
51struct mevent *mevent_add_disabled(int fd, enum ev_type type,
52			  void (*func)(int, enum ev_type, void *),
53			  void *param);
54int	mevent_enable(struct mevent *evp);
55int	mevent_disable(struct mevent *evp);
56int	mevent_delete(struct mevent *evp);
57int	mevent_delete_close(struct mevent *evp);
58int	mevent_timer_update(struct mevent *evp, int msecs);
59
60void	mevent_dispatch(void);
61
62#endif	/* _MEVENT_H_ */
63