1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or https://opensource.org/licenses/CDDL-1.0.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2020 by Delphix. All rights reserved.
25 */
26
27#ifndef	_SYS_ZFS_ONEXIT_H
28#define	_SYS_ZFS_ONEXIT_H
29
30#include <sys/zfs_context.h>
31
32#ifdef	__cplusplus
33extern "C" {
34#endif
35
36#ifdef _KERNEL
37
38typedef struct zfs_onexit {
39	kmutex_t	zo_lock;
40	list_t		zo_actions;
41} zfs_onexit_t;
42
43typedef struct zfs_onexit_action_node {
44	list_node_t	za_link;
45	void		(*za_func)(void *);
46	void		*za_data;
47} zfs_onexit_action_node_t;
48
49extern void zfs_onexit_init(zfs_onexit_t **zo);
50extern void zfs_onexit_destroy(zfs_onexit_t *zo);
51
52#endif
53
54extern zfs_file_t *zfs_onexit_fd_hold(int fd, minor_t *minorp);
55extern void zfs_onexit_fd_rele(zfs_file_t *);
56extern int zfs_onexit_add_cb(minor_t minor, void (*func)(void *), void *data,
57    uintptr_t *action_handle);
58
59#ifdef	__cplusplus
60}
61#endif
62
63#endif	/* _SYS_ZFS_ONEXIT_H */
64