Current File : //usr/include/mysql/server/private/myisamchk.h
/* Copyright (C) 2006 MySQL AB
Copyright (c) 2017, 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 */
/* Definitions needed for myisamchk/mariachk.c */
#ifndef _myisamchk_h
#define _myisamchk_h
#include <my_stack_alloc.h>
/*
Flags used by xxxxchk.c or/and ha_xxxx.cc that are NOT passed
to xxxcheck.c follows:
*/
#define TT_USEFRM 1U
#define TT_FOR_UPGRADE 2U
#define TT_FROM_MYSQL 4U
/* Bits set in out_flag */
#define O_NEW_DATA 2U
#define O_DATA_LOST 4U
/*
MARIA/MYISAM supports several statistics collection
methods. Currently statistics collection method is not stored in
MARIA file and has to be specified for each table analyze/repair
operation in MI_CHECK::stats_method.
*/
typedef enum
{
/* Treat NULLs as inequal when collecting statistics (default for 4.1/5.0) */
MI_STATS_METHOD_NULLS_NOT_EQUAL,
/* Treat NULLs as equal when collecting statistics (like 4.0 did) */
MI_STATS_METHOD_NULLS_EQUAL,
/* Ignore NULLs - count only tuples without NULLs in the index components */
MI_STATS_METHOD_IGNORE_NULLS
} enum_handler_stats_method;
struct st_myisam_info;
typedef struct st_handler_check_param
{
char *isam_file_name;
MY_TMPDIR *tmpdir;
void *thd;
const char *db_name, *table_name, *op_name;
ulonglong auto_increment_value;
ulonglong max_data_file_length;
ulonglong keys_in_use;
ulonglong max_record_length;
/*
The next two are used to collect statistics, see update_key_parts for
description.
*/
ulonglong unique_count[HA_MAX_KEY_SEG + 1];
ulonglong notnull_count[HA_MAX_KEY_SEG + 1];
ulonglong max_allowed_lsn;
my_off_t search_after_block;
my_off_t new_file_pos, key_file_blocks;
my_off_t keydata, totaldata, key_blocks, start_check_pos;
my_off_t used, empty, splits, del_length, link_used, lost;
ha_rows total_records, total_deleted, records,del_blocks;
ha_rows full_page_count, tail_count;
ha_checksum record_checksum, glob_crc;
ha_checksum key_crc[HA_MAX_POSSIBLE_KEY];
ha_checksum tmp_key_crc[HA_MAX_POSSIBLE_KEY];
ha_checksum tmp_record_checksum;
ulonglong org_key_map;
ulonglong testflag;
/* Following is used to check if rows are visible */
ulonglong max_trid, max_found_trid;
ulonglong not_visible_rows_found;
ulonglong sort_buffer_length, orig_sort_buffer_length;
ulonglong use_buffers; /* Used as param to getopt() */
size_t read_buffer_length, write_buffer_length, sort_key_blocks;
time_t backup_time; /* To sign backup files */
ulong rec_per_key_part[HA_MAX_KEY_SEG * HA_MAX_POSSIBLE_KEY];
double new_rec_per_key_part[HA_MAX_KEY_SEG * HA_MAX_POSSIBLE_KEY];
uint out_flag, error_printed, verbose;
uint opt_sort_key, total_files, max_level;
uint key_cache_block_size, pagecache_block_size;
uint skip_lsn_error_count;
int tmpfile_createflag, err_count;
myf myf_rw;
uint16 language;
my_bool warning_printed, note_printed, wrong_trd_printed;
my_bool using_global_keycache, opt_lock_memory, opt_follow_links;
my_bool retry_repair, force_sort, calc_checksum, static_row_size;
char temp_filename[FN_REFLEN];
IO_CACHE read_cache;
void **stack_end_ptr;
enum_handler_stats_method stats_method;
/* For reporting progress */
uint stage, max_stage;
uint progress_counter; /* How often to call _report_progress() */
ulonglong progress, max_progress;
void (*init_fix_record)(void *);
int (*fix_record)(struct st_myisam_info *info, uchar *record, int keynum);
mysql_mutex_t print_msg_mutex;
my_bool need_print_msg_lock;
myf malloc_flags;
} HA_CHECK;
typedef struct st_buffpek {
my_off_t file_pos; /* Where we are in the sort file */
uchar *base, *key; /* Key pointers */
ha_rows count; /* Number of rows in table */
ha_rows mem_count; /* Numbers of keys in memory */
ha_rows max_keys; /* Max keys in buffert */
} BUFFPEK;
#endif /* _myisamchk_h */
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