/* Copyright (C) 2000-2006 MySQL 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 STORAGE_MYISAM_HA_MYISAM_H #define STORAGE_MYISAM_HA_MYISAM_H #include #include /* class for the the myisam handler */ #include #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 */ extern TYPELIB myisam_recover_typelib; extern ulong myisam_recover_options; #ifdef __cplusplus extern "C" { #endif bool index_cond_func_myisam(void *arg); #ifdef __cplusplus } #endif class ha_myisam: public handler { MI_INFO *file; uint64_t int_table_flags; char *data_file_name, *index_file_name; bool can_enable_indexes; int repair(Session *session, MI_CHECK ¶m, bool optimize); public: ha_myisam(handlerton *hton, TABLE_SHARE *table_arg); ~ha_myisam() {} handler *clone(MEM_ROOT *mem_root); const char *table_type() const { return "MyISAM"; } const char *index_type(uint32_t key_number); const char **bas_ext() const; uint64_t table_flags() const { return int_table_flags; } int index_init(uint32_t idx, bool sorted); int index_end(); uint32_t index_flags(uint32_t inx, uint32_t part, bool all_parts) const; uint32_t max_supported_keys() const { return MI_MAX_KEY; } uint32_t max_supported_key_length() const { return MI_MAX_KEY_LENGTH; } uint32_t max_supported_key_part_length() const { return MI_MAX_KEY_LENGTH; } uint32_t checksum() const; int open(const char *name, int mode, uint32_t test_if_locked); int close(void); int write_row(unsigned char * buf); int update_row(const unsigned char * old_data, unsigned char * new_data); int delete_row(const unsigned char * buf); int index_read_map(unsigned char *buf, const unsigned char *key, key_part_map keypart_map, enum ha_rkey_function find_flag); int index_read_idx_map(unsigned char *buf, uint32_t index, const unsigned char *key, key_part_map keypart_map, enum ha_rkey_function find_flag); int index_read_last_map(unsigned char *buf, const unsigned char *key, key_part_map keypart_map); int index_next(unsigned char * buf); int index_prev(unsigned char * buf); int index_first(unsigned char * buf); int index_last(unsigned char * buf); int index_next_same(unsigned char *buf, const unsigned char *key, uint32_t keylen); int rnd_init(bool scan); int rnd_next(unsigned char *buf); int rnd_pos(unsigned char * buf, unsigned char *pos); int restart_rnd_next(unsigned char *buf, unsigned char *pos); void position(const unsigned char *record); int info(uint); int extra(enum ha_extra_function operation); int extra_opt(enum ha_extra_function operation, uint32_t cache_size); int reset(void); int external_lock(Session *session, int lock_type); int delete_all_rows(void); int disable_indexes(uint32_t mode); int enable_indexes(uint32_t mode); int indexes_are_disabled(void); void start_bulk_insert(ha_rows rows); int end_bulk_insert(); ha_rows records_in_range(uint32_t 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(Session *session, THR_LOCK_DATA **to, enum thr_lock_type lock_type); virtual void get_auto_increment(uint64_t offset, uint64_t increment, uint64_t nb_desired_values, uint64_t *first_value, uint64_t *nb_reserved_values); int rename_table(const char * from, const char * to); int delete_table(const char *name); int check(Session* session, HA_CHECK_OPT* check_opt); int analyze(Session* session,HA_CHECK_OPT* check_opt); int repair(Session* session, HA_CHECK_OPT* check_opt); bool check_and_repair(Session *session); bool is_crashed() const; bool auto_repair() const { return myisam_recover_options != 0; } int optimize(Session* session, HA_CHECK_OPT* check_opt); int assign_to_keycache(Session* session, HA_CHECK_OPT* check_opt); bool check_if_incompatible_data(HA_CREATE_INFO *info, uint32_t table_changes); #ifdef HAVE_QUERY_CACHE bool register_query_cache_table(Session *session, char *table_key, uint32_t key_length, qc_engine_callback *engine_callback, uint64_t *engine_data); #endif MI_INFO *file_ptr(void) { return file; } int read_range_first(const key_range *start_key, const key_range *end_key, bool eq_range_arg, bool sorted); int read_range_next(); public: /** * Multi Range Read interface */ int multi_range_read_init(RANGE_SEQ_IF *seq, void *seq_init_param, uint32_t n_ranges, uint32_t mode, HANDLER_BUFFER *buf); int multi_range_read_next(char **range_info); ha_rows multi_range_read_info_const(uint32_t keyno, RANGE_SEQ_IF *seq, void *seq_init_param, uint32_t n_ranges, uint32_t *bufsz, uint32_t *flags, COST_VECT *cost); int multi_range_read_info(uint32_t keyno, uint32_t n_ranges, uint32_t keys, uint32_t *bufsz, uint32_t *flags, COST_VECT *cost); /* Index condition pushdown implementation */ Item *idx_cond_push(uint32_t keyno, Item* idx_cond); bool check_if_supported_virtual_columns(void) { return true; } private: DsMrr_impl ds_mrr; key_map keys_with_parts; friend bool index_cond_func_myisam(void *arg); }; #endif /* STORAGE_MYISAM_HA_MYISAM_H */