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mariadb/storage/maria/ha_maria.h
Michael Widenius f34be18938 Merge with MariaDB 5.2
2011-05-10 18:17:43 +03:00

198 lines
7.5 KiB
C++
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/* Copyright (C) 2006,2004 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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; version 2 of the License.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef HA_MARIA_INCLUDED
#define HA_MARIA_INCLUDED
#ifdef USE_PRAGMA_INTERFACE
#pragma interface /* gcc class implementation */
#endif
/* class for the maria handler */
#include <maria.h>
#define HA_RECOVER_NONE 0 /* No automatic recover */
#define HA_RECOVER_DEFAULT 1 /* Automatic recover active */
#define HA_RECOVER_BACKUP 2 /* Make a backupfile on recover */
#define HA_RECOVER_FORCE 4 /* Recover even if we loose rows */
#define HA_RECOVER_QUICK 8 /* Don't check rows in data file */
C_MODE_START
ICP_RESULT index_cond_func_maria(void *arg);
C_MODE_END
extern ulong maria_sort_buffer_size;
extern TYPELIB maria_recover_typelib;
extern ulong maria_recover_options;
class ha_maria :public handler
{
MARIA_HA *file;
ulonglong int_table_flags;
MARIA_RECORD_POS remember_pos;
char *data_file_name, *index_file_name;
enum data_file_type data_file_type;
bool can_enable_indexes;
/**
If a transactional table is doing bulk insert with a single
UNDO_BULK_INSERT with/without repair.
*/
uint8 bulk_insert_single_undo;
int repair(THD * thd, HA_CHECK *param, bool optimize);
int zerofill(THD * thd, HA_CHECK_OPT *check_opt);
public:
ha_maria(handlerton *hton, TABLE_SHARE * table_arg);
~ha_maria() {}
handler *clone(const char *name, MEM_ROOT *mem_root);
const char *table_type() const
{ return "Aria"; }
const char *index_type(uint key_number);
const char **bas_ext() const;
ulonglong table_flags() const
{ return int_table_flags; }
ulong index_flags(uint inx, uint part, bool all_parts) const
{
return ((table_share->key_info[inx].algorithm == HA_KEY_ALG_FULLTEXT) ?
0 : HA_READ_NEXT | HA_READ_PREV | HA_READ_RANGE |
HA_READ_ORDER | HA_KEYREAD_ONLY | HA_DO_INDEX_COND_PUSHDOWN);
}
uint max_supported_keys() const
{ return MARIA_MAX_KEY; }
uint max_supported_key_length() const;
uint max_supported_key_part_length() const
{ return max_supported_key_length(); }
enum row_type get_row_type() const;
uint checksum() const;
virtual double scan_time();
int open(const char *name, int mode, uint test_if_locked);
int close(void);
int write_row(uchar * buf);
int update_row(const uchar * old_data, uchar * new_data);
int delete_row(const uchar * buf);
int index_read_map(uchar * buf, const uchar * key, key_part_map keypart_map,
enum ha_rkey_function find_flag);
int index_read_idx_map(uchar * buf, uint idx, const uchar * key,
key_part_map keypart_map,
enum ha_rkey_function find_flag);
int index_read_last_map(uchar * buf, const uchar * key,
key_part_map keypart_map);
int index_next(uchar * buf);
int index_prev(uchar * buf);
int index_first(uchar * buf);
int index_last(uchar * buf);
int index_next_same(uchar * buf, const uchar * key, uint keylen);
int ft_init()
{
if (!ft_handler)
return 1;
ft_handler->please->reinit_search(ft_handler);
return 0;
}
FT_INFO *ft_init_ext(uint flags, uint inx, String * key)
{
return maria_ft_init_search(flags, file, inx,
(uchar *) key->ptr(), key->length(),
key->charset(), table->record[0]);
}
int ft_read(uchar * buf);
int index_init(uint idx, bool sorted);
int index_end();
int rnd_init(bool scan);
int rnd_end(void);
int rnd_next(uchar * buf);
int rnd_pos(uchar * buf, uchar * pos);
int remember_rnd_pos();
int restart_rnd_next(uchar * buf);
void position(const uchar * record);
int info(uint);
int info(uint, my_bool);
int extra(enum ha_extra_function operation);
int extra_opt(enum ha_extra_function operation, ulong cache_size);
int reset(void);
int external_lock(THD * thd, int lock_type);
int start_stmt(THD *thd, thr_lock_type lock_type);
int delete_all_rows(void);
int disable_indexes(uint mode);
int enable_indexes(uint mode);
int indexes_are_disabled(void);
void start_bulk_insert(ha_rows rows);
int end_bulk_insert();
ha_rows records_in_range(uint inx, key_range * min_key, key_range * max_key);
void update_create_info(HA_CREATE_INFO * create_info);
int create(const char *name, TABLE * form, HA_CREATE_INFO * create_info);
THR_LOCK_DATA **store_lock(THD * thd, THR_LOCK_DATA ** to,
enum thr_lock_type lock_type);
virtual void get_auto_increment(ulonglong offset, ulonglong increment,
ulonglong nb_desired_values,
ulonglong *first_value,
ulonglong *nb_reserved_values);
int rename_table(const char *from, const char *to);
int delete_table(const char *name);
void drop_table(const char *name);
int check(THD * thd, HA_CHECK_OPT * check_opt);
int analyze(THD * thd, HA_CHECK_OPT * check_opt);
int repair(THD * thd, HA_CHECK_OPT * check_opt);
bool check_and_repair(THD * thd);
bool is_crashed() const;
bool is_changed() const;
bool auto_repair() const { return maria_recover_options != HA_RECOVER_NONE; }
int optimize(THD * thd, HA_CHECK_OPT * check_opt);
int restore(THD * thd, HA_CHECK_OPT * check_opt);
int backup(THD * thd, HA_CHECK_OPT * check_opt);
int assign_to_keycache(THD * thd, HA_CHECK_OPT * check_opt);
int preload_keys(THD * thd, HA_CHECK_OPT * check_opt);
bool check_if_incompatible_data(HA_CREATE_INFO * info, uint table_changes);
#ifdef HAVE_REPLICATION
int dump(THD * thd, int fd);
int net_read_dump(NET * net);
#endif
#ifdef HAVE_QUERY_CACHE
my_bool register_query_cache_table(THD *thd, char *table_key,
uint key_length,
qc_engine_callback
*engine_callback,
ulonglong *engine_data);
#endif
MARIA_HA *file_ptr(void)
{
return file;
}
static int implicit_commit(THD *thd, bool new_trn);
/**
* Multi Range Read interface
*/
int multi_range_read_init(RANGE_SEQ_IF *seq, void *seq_init_param,
uint n_ranges, uint mode, HANDLER_BUFFER *buf);
int multi_range_read_next(range_id_t *range_info);
ha_rows multi_range_read_info_const(uint keyno, RANGE_SEQ_IF *seq,
void *seq_init_param,
uint n_ranges, uint *bufsz,
uint *flags, COST_VECT *cost);
ha_rows multi_range_read_info(uint keyno, uint n_ranges, uint keys,
uint key_parts, uint *bufsz,
uint *flags, COST_VECT *cost);
int multi_range_read_explain_info(uint mrr_mode, char *str, size_t size);
/* Index condition pushdown implementation */
Item *idx_cond_push(uint keyno, Item* idx_cond);
private:
DsMrr_impl ds_mrr;
friend ICP_RESULT index_cond_func_maria(void *arg);
};
#endif /* HA_MARIA_INCLUDED */
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