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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  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #ifndef	_SYS_DSL_SYNCTASK_H
     27 #define	_SYS_DSL_SYNCTASK_H
     28 
     29 #pragma ident	"@(#)dsl_synctask.h	1.3	07/06/29 SMI"
     30 
     31 #include <sys/txg.h>
     32 #include <sys/zfs_context.h>
     33 
     34 #ifdef	__cplusplus
     35 extern "C" {
     36 #endif
     37 
     38 struct dsl_pool;
     39 
     40 typedef int (dsl_checkfunc_t)(void *, void *, dmu_tx_t *);
     41 typedef void (dsl_syncfunc_t)(void *, void *, cred_t *, dmu_tx_t *);
     42 
     43 typedef struct dsl_sync_task {
     44 	list_node_t dst_node;
     45 	dsl_checkfunc_t *dst_checkfunc;
     46 	dsl_syncfunc_t *dst_syncfunc;
     47 	void *dst_arg1;
     48 	void *dst_arg2;
     49 	int dst_err;
     50 } dsl_sync_task_t;
     51 
     52 typedef struct dsl_sync_task_group {
     53 	txg_node_t dstg_node;
     54 	list_t dstg_tasks;
     55 	struct dsl_pool *dstg_pool;
     56 	cred_t *dstg_cr;
     57 	uint64_t dstg_txg;
     58 	int dstg_err;
     59 	int dstg_space;
     60 	boolean_t dstg_nowaiter;
     61 } dsl_sync_task_group_t;
     62 
     63 dsl_sync_task_group_t *dsl_sync_task_group_create(struct dsl_pool *dp);
     64 void dsl_sync_task_create(dsl_sync_task_group_t *dstg,
     65     dsl_checkfunc_t *, dsl_syncfunc_t *,
     66     void *arg1, void *arg2, int blocks_modified);
     67 int dsl_sync_task_group_wait(dsl_sync_task_group_t *dstg);
     68 void dsl_sync_task_group_nowait(dsl_sync_task_group_t *dstg, dmu_tx_t *tx);
     69 void dsl_sync_task_group_destroy(dsl_sync_task_group_t *dstg);
     70 void dsl_sync_task_group_sync(dsl_sync_task_group_t *dstg, dmu_tx_t *tx);
     71 
     72 int dsl_sync_task_do(struct dsl_pool *dp,
     73     dsl_checkfunc_t *checkfunc, dsl_syncfunc_t *syncfunc,
     74     void *arg1, void *arg2, int blocks_modified);
     75 void dsl_sync_task_do_nowait(struct dsl_pool *dp,
     76     dsl_checkfunc_t *checkfunc, dsl_syncfunc_t *syncfunc,
     77     void *arg1, void *arg2, int blocks_modified, dmu_tx_t *tx);
     78 
     79 #ifdef	__cplusplus
     80 }
     81 #endif
     82 
     83 #endif /* _SYS_DSL_SYNCTASK_H */
     84