1/*
2 * CDDL HEADER START
3 *
4 * This file and its contents are supplied under the terms of the
5 * Common Development and Distribution License ("CDDL"), version 1.0.
6 * You may only use this file in accordance with the terms of version
7 * 1.0 of the CDDL.
8 *
9 * A full copy of the text of the CDDL should have accompanied this
10 * source.  A copy of the CDDL is also available via the Internet at
11 * http://www.illumos.org/license/CDDL.
12 *
13 * CDDL HEADER END
14 */
15
16/*
17 * Copyright (c) 2015 by Delphix. All rights reserved.
18 */
19
20#ifndef	_SYS_VDEV_INDIRECT_BIRTHS_H
21#define	_SYS_VDEV_INDIRECT_BIRTHS_H
22
23#include <sys/dmu.h>
24#include <sys/spa.h>
25
26#ifdef	__cplusplus
27extern "C" {
28#endif
29
30typedef struct vdev_indirect_birth_entry_phys {
31	uint64_t vibe_offset;
32	uint64_t vibe_phys_birth_txg;
33} vdev_indirect_birth_entry_phys_t;
34
35typedef struct vdev_indirect_birth_phys {
36	uint64_t	vib_count; /* count of v_i_b_entry_phys_t's */
37} vdev_indirect_birth_phys_t;
38
39typedef struct vdev_indirect_births {
40	uint64_t	vib_object;
41
42	/*
43	 * Each entry indicates that everything up to but not including
44	 * vibe_offset was copied in vibe_phys_birth_txg. Entries are sorted
45	 * by increasing phys_birth, and also by increasing offset. See
46	 * vdev_indirect_births_physbirth for usage.
47	 */
48	vdev_indirect_birth_entry_phys_t *vib_entries;
49
50	objset_t	*vib_objset;
51
52	dmu_buf_t	*vib_dbuf;
53	vdev_indirect_birth_phys_t	*vib_phys;
54} vdev_indirect_births_t;
55
56extern vdev_indirect_births_t *vdev_indirect_births_open(objset_t *os,
57    uint64_t object);
58extern void vdev_indirect_births_close(vdev_indirect_births_t *vib);
59extern boolean_t vdev_indirect_births_is_open(vdev_indirect_births_t *vib);
60extern uint64_t vdev_indirect_births_alloc(objset_t *os, dmu_tx_t *tx);
61extern void vdev_indirect_births_free(objset_t *os, uint64_t object,
62    dmu_tx_t *tx);
63
64extern uint64_t vdev_indirect_births_count(vdev_indirect_births_t *vib);
65extern uint64_t vdev_indirect_births_object(vdev_indirect_births_t *vib);
66
67extern void vdev_indirect_births_add_entry(vdev_indirect_births_t *vib,
68    uint64_t offset, uint64_t txg, dmu_tx_t *tx);
69
70extern uint64_t vdev_indirect_births_physbirth(vdev_indirect_births_t *vib,
71    uint64_t offset, uint64_t asize);
72
73extern uint64_t vdev_indirect_births_last_entry_txg(
74    vdev_indirect_births_t *vib);
75
76#ifdef	__cplusplus
77}
78#endif
79
80#endif	/* _SYS_VDEV_INDIRECT_BIRTHS_H */
81