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proc
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thread-self
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proc
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root
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proc
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usr
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include
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mysql
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maria.h
/* 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
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