xref: /illumos-gate/usr/src/uts/common/fs/zfs/sys/dsl_prop.h (revision 1a220b56b93ff1dc80855691548503117af4cc10)
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 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_SYS_DSL_PROP_H
27 #define	_SYS_DSL_PROP_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #include <sys/dmu.h>
32 #include <sys/dsl_pool.h>
33 #include <sys/zfs_context.h>
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 struct dsl_dataset;
40 
41 /* The callback func may not call into the DMU or DSL! */
42 typedef void (dsl_prop_changed_cb_t)(void *arg, uint64_t newval);
43 
44 typedef struct dsl_prop_cb_record {
45 	list_node_t cbr_node; /* link on dd_prop_cbs */
46 	struct dsl_dataset *cbr_ds;
47 	const char *cbr_propname;
48 	dsl_prop_changed_cb_t *cbr_func;
49 	void *cbr_arg;
50 } dsl_prop_cb_record_t;
51 
52 int dsl_prop_register(struct dsl_dataset *ds, const char *propname,
53     dsl_prop_changed_cb_t *callback, void *cbarg);
54 int dsl_prop_unregister(struct dsl_dataset *ds, const char *propname,
55     dsl_prop_changed_cb_t *callback, void *cbarg);
56 int dsl_prop_numcb(struct dsl_dataset *ds);
57 
58 int dsl_prop_get(const char *ddname, const char *propname,
59     int intsz, int numints, void *buf, char *setpoint);
60 int dsl_prop_get_string(const char *ddname, const char *propname,
61     char *value, int valuelen, char *setpoint);
62 int dsl_prop_get_integer(const char *ddname, const char *propname,
63     uint64_t *valuep, char *setpoint);
64 int dsl_prop_get_ds_integer(dsl_dir_t *dd, const char *propname,
65     uint64_t *valuep, char *setpoint);
66 int dsl_prop_get_all(objset_t *os, nvlist_t **nvp);
67 
68 int dsl_prop_set(const char *ddname, const char *propname,
69     int intsz, int numints, const void *buf);
70 
71 #ifdef	__cplusplus
72 }
73 #endif
74 
75 #endif	/* _SYS_DSL_PROP_H */
76