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/*
* 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) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2016 by Delphix. All rights reserved.
* Copyright (c) 2023, Klara Inc.
*/
#ifndef _SYS_DDT_IMPL_H
#define _SYS_DDT_IMPL_H
#include <sys/ddt.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Ops vector to access a specific DDT object type.
*/
typedef struct {
char ddt_op_name[32];
int (*ddt_op_create)(objset_t *os, uint64_t *object, dmu_tx_t *tx,
boolean_t prehash);
int (*ddt_op_destroy)(objset_t *os, uint64_t object, dmu_tx_t *tx);
int (*ddt_op_lookup)(objset_t *os, uint64_t object,
const ddt_key_t *ddk, ddt_phys_t *phys, size_t psize);
int (*ddt_op_contains)(objset_t *os, uint64_t object,
const ddt_key_t *ddk);
void (*ddt_op_prefetch)(objset_t *os, uint64_t object,
const ddt_key_t *ddk);
int (*ddt_op_update)(objset_t *os, uint64_t object,
const ddt_key_t *ddk, const ddt_phys_t *phys, size_t psize,
dmu_tx_t *tx);
int (*ddt_op_remove)(objset_t *os, uint64_t object,
const ddt_key_t *ddk, dmu_tx_t *tx);
int (*ddt_op_walk)(objset_t *os, uint64_t object, uint64_t *walk,
ddt_key_t *ddk, ddt_phys_t *phys, size_t psize);
int (*ddt_op_count)(objset_t *os, uint64_t object, uint64_t *count);
} ddt_ops_t;
extern const ddt_ops_t ddt_zap_ops;
extern void ddt_stat_update(ddt_t *ddt, ddt_entry_t *dde, uint64_t neg);
/*
* These are only exposed so that zdb can access them. Try not to use them
* outside of the DDT implementation proper, and if you do, consider moving
* them up.
*/
/*
* Enough room to expand DMU_POOL_DDT format for all possible DDT
* checksum/class/type combinations.
*/
#define DDT_NAMELEN 32
extern uint64_t ddt_phys_total_refcnt(const ddt_entry_t *dde);
extern void ddt_key_fill(ddt_key_t *ddk, const blkptr_t *bp);
extern void ddt_stat_add(ddt_stat_t *dst, const ddt_stat_t *src, uint64_t neg);
extern void ddt_object_name(ddt_t *ddt, ddt_type_t type, ddt_class_t clazz,
char *name);
extern int ddt_object_walk(ddt_t *ddt, ddt_type_t type, ddt_class_t clazz,
uint64_t *walk, ddt_entry_t *dde);
extern int ddt_object_count(ddt_t *ddt, ddt_type_t type, ddt_class_t clazz,
uint64_t *count);
extern int ddt_object_info(ddt_t *ddt, ddt_type_t type, ddt_class_t clazz,
dmu_object_info_t *);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_DDT_H */
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