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  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 
25 #ifndef	_SYS_DSL_SYNCTASK_H
26 #define	_SYS_DSL_SYNCTASK_H
27 
28 #include <sys/txg.h>
29 #include <sys/zfs_context.h>
30 
31 #ifdef	__cplusplus
32 extern "C" {
33 #endif
34 
35 struct dsl_pool;
36 
37 typedef int (dsl_checkfunc_t)(void *, void *, dmu_tx_t *);
38 typedef void (dsl_syncfunc_t)(void *, void *, dmu_tx_t *);
39 
40 typedef struct dsl_sync_task {
41 	list_node_t dst_node;
42 	dsl_checkfunc_t *dst_checkfunc;
43 	dsl_syncfunc_t *dst_syncfunc;
44 	void *dst_arg1;
45 	void *dst_arg2;
46 	int dst_err;
47 } dsl_sync_task_t;
48 
49 typedef struct dsl_sync_task_group {
50 	txg_node_t dstg_node;
51 	list_t dstg_tasks;
52 	struct dsl_pool *dstg_pool;
53 	uint64_t dstg_txg;
54 	int dstg_err;
55 	int dstg_space;
56 	boolean_t dstg_nowaiter;
57 } dsl_sync_task_group_t;
58 
59 dsl_sync_task_group_t *dsl_sync_task_group_create(struct dsl_pool *dp);
60 void dsl_sync_task_create(dsl_sync_task_group_t *dstg,
61     dsl_checkfunc_t *, dsl_syncfunc_t *,
62     void *arg1, void *arg2, int blocks_modified);
63 int dsl_sync_task_group_wait(dsl_sync_task_group_t *dstg);
64 void dsl_sync_task_group_nowait(dsl_sync_task_group_t *dstg, dmu_tx_t *tx);
65 void dsl_sync_task_group_destroy(dsl_sync_task_group_t *dstg);
66 void dsl_sync_task_group_sync(dsl_sync_task_group_t *dstg, dmu_tx_t *tx);
67 
68 int dsl_sync_task_do(struct dsl_pool *dp,
69     dsl_checkfunc_t *checkfunc, dsl_syncfunc_t *syncfunc,
70     void *arg1, void *arg2, int blocks_modified);
71 void dsl_sync_task_do_nowait(struct dsl_pool *dp,
72     dsl_checkfunc_t *checkfunc, dsl_syncfunc_t *syncfunc,
73     void *arg1, void *arg2, int blocks_modified, dmu_tx_t *tx);
74 
75 #ifdef	__cplusplus
76 }
77 #endif
78 
79 #endif /* _SYS_DSL_SYNCTASK_H */
80