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 */ 67