/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef	_SYS_DSL_PROP_H
#define	_SYS_DSL_PROP_H

#pragma ident	"%Z%%M%	%I%	%E% SMI"

#include <sys/dmu.h>
#include <sys/dsl_pool.h>
#include <sys/zfs_context.h>

#ifdef	__cplusplus
extern "C" {
#endif

struct dsl_dataset;

/* The callback func may not call into the DMU or DSL! */
typedef void (dsl_prop_changed_cb_t)(void *arg, uint64_t newval);

#define	DSL_PROP_VALUE_UNDEFINED (-1ULL)

typedef struct dsl_prop_cb_record {
	list_node_t cbr_node; /* link on dd_prop_cbs */
	const char *cbr_propname;
	dsl_prop_changed_cb_t *cbr_func;
	void *cbr_arg;
} dsl_prop_cb_record_t;

int dsl_prop_register(struct dsl_dataset *ds, const char *propname,
    dsl_prop_changed_cb_t *callback, void *cbarg);
int dsl_prop_unregister(struct dsl_dataset *ds, const char *propname,
    dsl_prop_changed_cb_t *callback, void *cbarg);

int dsl_prop_get(const char *ddname, const char *propname,
    int intsz, int numints, void *buf, char *setpoint);
int dsl_prop_get_string(const char *ddname, const char *propname,
    char *value, int valuelen, char *setpoint);
int dsl_prop_get_integer(const char *ddname, const char *propname,
    uint64_t *valuep, char *setpoint);
int dsl_prop_get_ds_integer(dsl_dir_t *dd, const char *propname,
    uint64_t *valuep, char *setpoint);
int dsl_prop_get_all(objset_t *os, nvlist_t **nvp);

int dsl_prop_set(const char *ddname, const char *propname,
    int intsz, int numints, const void *buf);

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_DSL_PROP_H */