projects / mirror_zfs.git / blame
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|---|---|---|
| 572e2857 BB |
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 */ |