Home | History | Annotate | Line # | Download | only in sys 
      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  * Copyright (c) 2012 by Delphix. All rights reserved.
     24  */
     25 
     26 #ifndef	_SYS_DSL_PROP_H
     27 #define	_SYS_DSL_PROP_H
     28 
     29 #include <sys/dmu.h>
     30 #include <sys/dsl_pool.h>
     31 #include <sys/zfs_context.h>
     32 #include <sys/dsl_synctask.h>
     33 
     34 #ifdef	__cplusplus
     35 extern "C" {
     36 #endif
     37 
     38 struct dsl_dataset;
     39 struct dsl_dir;
     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_record {
     45 	list_node_t pr_node; /* link on dd_props */
     46 	const char *pr_propname;
     47 	list_t pr_cbs;
     48 } dsl_prop_record_t;
     49 
     50 typedef struct dsl_prop_cb_record {
     51 	list_node_t cbr_pr_node; /* link on pr_cbs */
     52 	list_node_t cbr_ds_node; /* link on ds_prop_cbs */
     53 	dsl_prop_record_t *cbr_pr;
     54 	struct dsl_dataset *cbr_ds;
     55 	dsl_prop_changed_cb_t *cbr_func;
     56 	void *cbr_arg;
     57 } dsl_prop_cb_record_t;
     58 
     59 typedef struct dsl_props_arg {
     60 	nvlist_t *pa_props;
     61 	zprop_source_t pa_source;
     62 } dsl_props_arg_t;
     63 
     64 void dsl_prop_init(dsl_dir_t *dd);
     65 void dsl_prop_fini(dsl_dir_t *dd);
     66 int dsl_prop_register(struct dsl_dataset *ds, const char *propname,
     67     dsl_prop_changed_cb_t *callback, void *cbarg);
     68 void dsl_prop_unregister_all(struct dsl_dataset *ds, void *cbarg);
     69 void dsl_prop_notify_all(struct dsl_dir *dd);
     70 boolean_t dsl_prop_hascb(struct dsl_dataset *ds);
     71 
     72 int dsl_prop_get(const char *ddname, const char *propname,
     73     int intsz, int numints, void *buf, char *setpoint);
     74 int dsl_prop_get_integer(const char *ddname, const char *propname,
     75     uint64_t *valuep, char *setpoint);
     76 int dsl_prop_get_all(objset_t *os, nvlist_t **nvp);
     77 int dsl_prop_get_received(const char *dsname, nvlist_t **nvp);
     78 int dsl_prop_get_ds(struct dsl_dataset *ds, const char *propname,
     79     int intsz, int numints, void *buf, char *setpoint);
     80 int dsl_prop_get_int_ds(struct dsl_dataset *ds, const char *propname,
     81     uint64_t *valuep);
     82 int dsl_prop_get_dd(struct dsl_dir *dd, const char *propname,
     83     int intsz, int numints, void *buf, char *setpoint,
     84     boolean_t snapshot);
     85 
     86 void dsl_props_set_sync_impl(struct dsl_dataset *ds, zprop_source_t source,
     87     nvlist_t *props, dmu_tx_t *tx);
     88 void dsl_prop_set_sync_impl(struct dsl_dataset *ds, const char *propname,
     89     zprop_source_t source, int intsz, int numints, const void *value,
     90     dmu_tx_t *tx);
     91 int dsl_props_set(const char *dsname, zprop_source_t source, nvlist_t *nvl);
     92 int dsl_prop_set_int(const char *dsname, const char *propname,
     93     zprop_source_t source, uint64_t value);
     94 int dsl_prop_set_string(const char *dsname, const char *propname,
     95     zprop_source_t source, const char *value);
     96 int dsl_prop_inherit(const char *dsname, const char *propname,
     97     zprop_source_t source);
     98 
     99 int dsl_prop_predict(dsl_dir_t *dd, const char *propname,
    100     zprop_source_t source, uint64_t value, uint64_t *newvalp);
    101 
    102 /* flag first receive on or after SPA_VERSION_RECVD_PROPS */
    103 boolean_t dsl_prop_get_hasrecvd(const char *dsname);
    104 int dsl_prop_set_hasrecvd(const char *dsname);
    105 void dsl_prop_unset_hasrecvd(const char *dsname);
    106 
    107 void dsl_prop_nvlist_add_uint64(nvlist_t *nv, zfs_prop_t prop, uint64_t value);
    108 void dsl_prop_nvlist_add_string(nvlist_t *nv,
    109     zfs_prop_t prop, const char *value);
    110 
    111 #ifdef	__cplusplus
    112 }
    113 #endif
    114 
    115 #endif	/* _SYS_DSL_PROP_H */
    116