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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 http://www.opensolaris.org/os/licensing. | |
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 | */ | |
25 | ||
26 | #ifndef _SYS_ZFS_ONEXIT_H | |
27 | #define _SYS_ZFS_ONEXIT_H | |
28 | ||
29 | #include <sys/zfs_context.h> | |
30 | ||
31 | #ifdef __cplusplus | |
32 | extern "C" { | |
33 | #endif | |
34 | ||
35 | #ifdef _KERNEL | |
36 | ||
37 | typedef struct zfs_onexit { | |
38 | kmutex_t zo_lock; | |
39 | list_t zo_actions; | |
40 | } zfs_onexit_t; | |
41 | ||
42 | typedef struct zfs_onexit_action_node { | |
43 | list_node_t za_link; | |
44 | void (*za_func)(void *); | |
45 | void *za_data; | |
46 | } zfs_onexit_action_node_t; | |
47 | ||
48 | extern void zfs_onexit_init(zfs_onexit_t **zo); | |
49 | extern void zfs_onexit_destroy(zfs_onexit_t *zo); | |
50 | ||
51 | #endif | |
52 | ||
53 | extern int zfs_onexit_fd_hold(int fd, minor_t *minorp); | |
54 | extern void zfs_onexit_fd_rele(int fd); | |
55 | extern int zfs_onexit_add_cb(minor_t minor, void (*func)(void *), void *data, | |
56 | uint64_t *action_handle); | |
57 | extern int zfs_onexit_del_cb(minor_t minor, uint64_t action_handle, | |
58 | boolean_t fire); | |
59 | extern int zfs_onexit_cb_data(minor_t minor, uint64_t action_handle, | |
60 | void **data); | |
61 | ||
62 | #ifdef __cplusplus | |
63 | } | |
64 | #endif | |
65 | ||
66 | #endif /* _SYS_ZFS_ONEXIT_H */ |