1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/* Copyright (C) 2006-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
Copyright (c) 2009, 2019, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
/* This file should be included when using maria functions */
#ifndef _maria_h
#define _maria_h
#include <my_base.h>
#include <m_ctype.h>
#include "my_compare.h"
#include "ft_global.h"
#include <myisamchk.h>
#ifdef __cplusplus
extern "C" {
#endif
#define MARIA_UNIQUE_HASH_LENGTH 4
extern my_bool maria_delay_key_write;
uint maria_max_key_length(void);
#define maria_max_key_segments() HA_MAX_KEY_SEG
struct st_maria_bit_buff;
struct st_maria_page;
struct st_maria_s_param;
struct st_maria_share;
typedef struct st_maria_decode_tree MARIA_DECODE_TREE;
typedef struct st_maria_handler MARIA_HA;
typedef struct st_maria_key MARIA_KEY;
typedef ulonglong MARIA_RECORD_POS;
typedef struct st_maria_keydef /* Key definition with open & info */
{
struct st_maria_share *share; /* Pointer to base (set in open) */
mysql_rwlock_t root_lock; /* locking of tree */
uint16 keysegs; /* Number of key-segment */
uint16 flag; /* NOSAME, PACK_USED */
uint8 key_alg; /* BTREE, RTREE */
uint8 key_nr; /* key number (auto) */
uint16 block_length; /* Length of keyblock (auto) */
uint16 underflow_block_length; /* When to execute underflow */
uint16 keylength; /* Tot length of keyparts (auto) */
uint16 minlength; /* min length of (packed) key (auto) */
uint16 maxlength; /* max length of (packed) key (auto) */
uint16 max_store_length; /* Size to store key + overhead */
uint32 write_comp_flag; /* compare flag for write key (auto) */
uint32 version; /* For concurrent read/write */
uint32 ftkey_nr; /* full-text index number */
HA_KEYSEG *seg, *end;
struct st_mysql_ftparser *parser; /* Fulltext [pre]parser */
int (*bin_search)(const MARIA_KEY *key, const struct st_maria_page *page,
uint32 comp_flag, uchar **ret_pos, uchar *buff,
my_bool *was_last_key);
uint (*get_key)(MARIA_KEY *key, uint page_flag, uint nod_flag,
uchar **page);
uchar *(*skip_key)(MARIA_KEY *key, uint page_flag, uint nod_flag,
uchar *page);
int (*pack_key)(const MARIA_KEY *key, uint nod_flag,
uchar *next_key, uchar *org_key, uchar *prev_key,
struct st_maria_s_param *s_temp);
void (*store_key)(struct st_maria_keydef *keyinfo, uchar *key_pos,
struct st_maria_s_param *s_temp);
my_bool (*ck_insert)(MARIA_HA *inf, MARIA_KEY *key);
my_bool (*ck_delete)(MARIA_HA *inf, MARIA_KEY *klen);
MARIA_KEY *(*make_key)(MARIA_HA *info, MARIA_KEY *int_key, uint keynr,
uchar *key, const uchar *record,
MARIA_RECORD_POS filepos, ulonglong trid);
} MARIA_KEYDEF;
typedef struct st_maria_unique_def /* Segment definition of unique */
{
uint16 keysegs; /* Number of key-segment */
uint8 key; /* Mapped to which key */
uint8 null_are_equal;
HA_KEYSEG *seg, *end;
} MARIA_UNIQUEDEF;
/*
Note that null markers should always be first in a row !
When creating a column, one should only specify:
type, length, null_bit and null_pos
*/
typedef struct st_maria_columndef /* column information */
{
enum en_fieldtype type;
uint32 offset; /* Offset to position in row */
uint16 length; /* length of field */
uint16 column_nr;
/* Intern variable (size of total storage area for the row) */
uint16 fill_length;
uint16 null_pos; /* Position for null marker */
uint16 empty_pos; /* Position for empty marker */
uint8 null_bit; /* If column may be NULL */
/* Intern. Set if column should be zero packed (part of empty_bits) */
uint8 empty_bit;
#ifndef NOT_PACKED_DATABASES
void(*unpack)(struct st_maria_columndef *rec,
struct st_maria_bit_buff *buff,
uchar *start, uchar *end);
enum en_fieldtype base_type;
uint space_length_bits, pack_type;
MARIA_DECODE_TREE *huff_tree;
#endif
} MARIA_COLUMNDEF;
typedef struct st_maria_create_info
{
const char *index_file_name, *data_file_name; /* If using symlinks */
ha_rows max_rows;
ha_rows reloc_rows;
ulonglong auto_increment;
ulonglong data_file_length;
ulonglong key_file_length;
ulong s3_block_size;
/* Size of null bitmap at start of row */
uint null_bytes;
uint old_options;
uint compression_algorithm;
enum data_file_type org_data_file_type;
uint16 language;
my_bool with_auto_increment, transactional, encrypted;
} MARIA_CREATE_INFO;
extern int maria_create(const char *name, enum data_file_type record_type,
uint keys, MARIA_KEYDEF *keydef,
uint columns, MARIA_COLUMNDEF *columndef,
uint uniques, MARIA_UNIQUEDEF *uniquedef,
MARIA_CREATE_INFO *create_info, uint flags);
#ifdef __cplusplus
}
#endif
#endif
|
