FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/sys/dsl_prop.h

     /*
      * CDDL HEADER START
      *
      * The contents of this file are subject to the terms of the
      * Common Development and Distribution License (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 https://opensource.org/licenses/CDDL-1.0.
     * 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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
     * Copyright (c) 2012 by Delphix. All rights reserved.
     * Copyright 2019 Joyent, Inc.
     */
    
    #ifndef _SYS_DSL_PROP_H
    #define _SYS_DSL_PROP_H
    
    #include <sys/dmu.h>
    #include <sys/dsl_pool.h>
    #include <sys/zfs_context.h>
    #include <sys/dsl_synctask.h>
    
    #ifdef  __cplusplus
    extern "C" {
    #endif
    
    struct dsl_dataset;
    struct dsl_dir;
    
    /* The callback func may not call into the DMU or DSL! */
    typedef void (dsl_prop_changed_cb_t)(void *arg, uint64_t newval);
    
    typedef struct dsl_prop_record {
            list_node_t pr_node; /* link on dd_props */
            const char *pr_propname;
            list_t pr_cbs;
    } dsl_prop_record_t;
    
    typedef struct dsl_prop_cb_record {
            list_node_t cbr_pr_node; /* link on pr_cbs */
            list_node_t cbr_ds_node; /* link on ds_prop_cbs */
            dsl_prop_record_t *cbr_pr;
            struct dsl_dataset *cbr_ds;
            dsl_prop_changed_cb_t *cbr_func;
            void *cbr_arg;
    } dsl_prop_cb_record_t;
    
    typedef struct dsl_props_arg {
            nvlist_t *pa_props;
            zprop_source_t pa_source;
    } dsl_props_arg_t;
    
    typedef struct dsl_props_set_arg {
            const char *dpsa_dsname;
            zprop_source_t dpsa_source;
            nvlist_t *dpsa_props;
    } dsl_props_set_arg_t;
    
    void dsl_prop_init(dsl_dir_t *dd);
    void dsl_prop_fini(dsl_dir_t *dd);
    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);
    void dsl_prop_unregister_all(struct dsl_dataset *ds, void *cbarg);
    void dsl_prop_notify_all(struct dsl_dir *dd);
    boolean_t dsl_prop_hascb(struct dsl_dataset *ds);
    
    int dsl_prop_get(const char *ddname, const char *propname,
        int intsz, int numints, void *buf, char *setpoint);
    int dsl_prop_get_integer(const char *ddname, const char *propname,
        uint64_t *valuep, char *setpoint);
    int dsl_prop_get_all(objset_t *os, nvlist_t **nvp);
    int dsl_prop_get_received(const char *dsname, nvlist_t **nvp);
    int dsl_prop_get_ds(struct dsl_dataset *ds, const char *propname,
        int intsz, int numints, void *buf, char *setpoint);
    int dsl_prop_get_int_ds(struct dsl_dataset *ds, const char *propname,
        uint64_t *valuep);
    int dsl_prop_get_dd(struct dsl_dir *dd, const char *propname,
        int intsz, int numints, void *buf, char *setpoint,
        boolean_t snapshot);
    
    int dsl_props_set_check(void *arg, dmu_tx_t *tx);
    void dsl_props_set_sync(void *arg, dmu_tx_t *tx);
    void dsl_props_set_sync_impl(struct dsl_dataset *ds, zprop_source_t source,
        nvlist_t *props, dmu_tx_t *tx);
    void dsl_prop_set_sync_impl(struct dsl_dataset *ds, const char *propname,
       zprop_source_t source, int intsz, int numints, const void *value,
       dmu_tx_t *tx);
   int dsl_props_set(const char *dsname, zprop_source_t source, nvlist_t *nvl);
   int dsl_prop_set_int(const char *dsname, const char *propname,
       zprop_source_t source, uint64_t value);
   int dsl_prop_set_string(const char *dsname, const char *propname,
       zprop_source_t source, const char *value);
   int dsl_prop_inherit(const char *dsname, const char *propname,
       zprop_source_t source);
   
   int dsl_prop_predict(dsl_dir_t *dd, const char *propname,
       zprop_source_t source, uint64_t value, uint64_t *newvalp);
   
   /* flag first receive on or after SPA_VERSION_RECVD_PROPS */
   boolean_t dsl_prop_get_hasrecvd(const char *dsname);
   int dsl_prop_set_hasrecvd(const char *dsname);
   void dsl_prop_unset_hasrecvd(const char *dsname);
   
   void dsl_prop_nvlist_add_uint64(nvlist_t *nv, zfs_prop_t prop, uint64_t value);
   void dsl_prop_nvlist_add_string(nvlist_t *nv,
       zfs_prop_t prop, const char *value);
   
   #ifdef  __cplusplus
   }
   #endif
   
   #endif  /* _SYS_DSL_PROP_H */

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