diff options
Diffstat (limited to 'sql/ha_innodb.h')
| -rw-r--r-- | sql/ha_innodb.h | 215 |
1 files changed, 114 insertions, 101 deletions
diff --git a/sql/ha_innodb.h b/sql/ha_innodb.h index 5dd6a92c4b0..4f0c9eb151b 100644 --- a/sql/ha_innodb.h +++ b/sql/ha_innodb.h @@ -7,12 +7,12 @@ 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 + 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 */ + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* This file is based on ha_berkeley.h of MySQL distribution @@ -34,8 +34,8 @@ typedef struct st_innobase_share { my_bool innobase_query_caching_of_table_permitted(THD* thd, char* full_name, - uint full_name_len, - ulonglong *unused); + uint full_name_len, + ulonglong *unused); /* The class defining a handle to an Innodb table */ class ha_innobase: public handler @@ -47,20 +47,20 @@ class ha_innobase: public handler THD* user_thd; /* the thread handle of the user currently using the handle; this is set in external_lock function */ - query_id_t last_query_id; /* the latest query id where the + query_id_t last_query_id; /* the latest query id where the handle was used */ - THR_LOCK_DATA lock; - INNOBASE_SHARE *share; + THR_LOCK_DATA lock; + INNOBASE_SHARE *share; - byte* upd_buff; /* buffer used in updates */ - byte* key_val_buff; /* buffer used in converting - search key values from MySQL format - to Innodb format */ + byte* upd_buff; /* buffer used in updates */ + byte* key_val_buff; /* buffer used in converting + search key values from MySQL format + to Innodb format */ ulong upd_and_key_val_buff_len; /* the length of each of the previous two buffers */ - ulong int_table_flags; - uint primary_key; + ulong int_table_flags; + uint primary_key; ulong start_of_scan; /* this is set to 1 when we are starting a table scan but have not yet fetched any row, else 0 */ @@ -70,7 +70,7 @@ class ha_innobase: public handler uint num_write_row; /* number of write_row() calls */ uint store_key_val_for_row(uint keynr, char* buff, uint buff_len, - const byte* record); + const byte* record); int update_thd(THD* thd); int change_active_index(uint keynr); int general_fetch(byte* buf, uint direction, uint match_mode); @@ -78,27 +78,27 @@ class ha_innobase: public handler /* Init values for the class: */ public: - ha_innobase(TABLE *table_arg); - ~ha_innobase() {} + ha_innobase(TABLE_SHARE *table_arg); + ~ha_innobase() {} /* Get the row type from the storage engine. If this method returns ROW_TYPE_NOT_USED, the information in HA_CREATE_INFO should be used. */ enum row_type get_row_type() const; - const char* table_type() const { return("InnoDB");} + const char* table_type() const { return("InnoDB");} const char *index_type(uint key_number) { return "BTREE"; } - const char** bas_ext() const; - ulong table_flags() const { return int_table_flags; } + const char** bas_ext() const; + ulong table_flags() const { return int_table_flags; } ulong index_flags(uint idx, uint part, bool all_parts) const { return (HA_READ_NEXT | HA_READ_PREV | HA_READ_ORDER | HA_READ_RANGE | - HA_KEYREAD_ONLY); + HA_KEYREAD_ONLY); } - uint max_supported_keys() const { return MAX_KEY; } + uint max_supported_keys() const { return MAX_KEY; } /* An InnoDB page must store >= 2 keys; a secondary key record must also contain the primary key value: @@ -106,96 +106,111 @@ class ha_innobase: public handler less than 1 / 4 of page size which is 16 kB; but currently MySQL does not work with keys whose size is > MAX_KEY_LENGTH */ - uint max_supported_key_length() const { return 3500; } - uint max_supported_key_part_length() const; + uint max_supported_key_length() const { return 3500; } + uint max_supported_key_part_length() const; const key_map *keys_to_use_for_scanning() { return &key_map_full; } - bool has_transactions() { return 1;} + bool has_transactions() { return 1;} - int open(const char *name, int mode, uint test_if_locked); - int close(void); - double scan_time(); + int open(const char *name, int mode, uint test_if_locked); + int close(void); + double scan_time(); double read_time(uint index, uint ranges, ha_rows rows); - int write_row(byte * buf); - int update_row(const byte * old_data, byte * new_data); - int delete_row(const byte * buf); + int write_row(byte * buf); + int update_row(const byte * old_data, byte * new_data); + int delete_row(const byte * buf); + bool was_semi_consistent_read(); + void try_semi_consistent_read(bool yes); void unlock_row(); - int index_init(uint index); - int index_end(); - int index_read(byte * buf, const byte * key, - uint key_len, enum ha_rkey_function find_flag); - int index_read_idx(byte * buf, uint index, const byte * key, + int index_init(uint index, bool sorted); + int index_end(); + int index_read(byte * buf, const byte * key, + uint key_len, enum ha_rkey_function find_flag); + int index_read_idx(byte * buf, uint index, const byte * key, uint key_len, enum ha_rkey_function find_flag); int index_read_last(byte * buf, const byte * key, uint key_len); - int index_next(byte * buf); - int index_next_same(byte * buf, const byte *key, uint keylen); - int index_prev(byte * buf); - int index_first(byte * buf); - int index_last(byte * buf); - - int rnd_init(bool scan); - int rnd_end(); - int rnd_next(byte *buf); - int rnd_pos(byte * buf, byte *pos); - - void position(const byte *record); - void info(uint); - int analyze(THD* thd,HA_CHECK_OPT* check_opt); - int optimize(THD* thd,HA_CHECK_OPT* check_opt); + int index_next(byte * buf); + int index_next_same(byte * buf, const byte *key, uint keylen); + int index_prev(byte * buf); + int index_first(byte * buf); + int index_last(byte * buf); + + int rnd_init(bool scan); + int rnd_end(); + int rnd_next(byte *buf); + int rnd_pos(byte * buf, byte *pos); + + void position(const byte *record); + void info(uint); + int analyze(THD* thd,HA_CHECK_OPT* check_opt); + int optimize(THD* thd,HA_CHECK_OPT* check_opt); int discard_or_import_tablespace(my_bool discard); - int extra(enum ha_extra_function operation); - int external_lock(THD *thd, int lock_type); + int extra(enum ha_extra_function operation); + int external_lock(THD *thd, int lock_type); int transactional_table_lock(THD *thd, int lock_type); - int start_stmt(THD *thd, thr_lock_type lock_type); + int start_stmt(THD *thd, thr_lock_type lock_type); - void position(byte *record); - ha_rows records_in_range(uint inx, key_range *min_key, key_range + int ha_retrieve_all_cols() + { + ha_set_all_bits_in_read_set(); + return extra(HA_EXTRA_RETRIEVE_ALL_COLS); + } + int ha_retrieve_all_pk() + { + ha_set_primary_key_in_read_set(); + return extra(HA_EXTRA_RETRIEVE_PRIMARY_KEY); + } + void position(byte *record); + ha_rows records_in_range(uint inx, key_range *min_key, key_range *max_key); ha_rows estimate_rows_upper_bound(); - int create(const char *name, register TABLE *form, + int create(const char *name, register TABLE *form, HA_CREATE_INFO *create_info); int delete_all_rows(); - int delete_table(const char *name); + int delete_table(const char *name); int rename_table(const char* from, const char* to); int check(THD* thd, HA_CHECK_OPT* check_opt); - char* update_table_comment(const char* comment); + char* update_table_comment(const char* comment); char* get_foreign_key_create_info(); - int get_foreign_key_list(THD *thd, List<FOREIGN_KEY_INFO> *f_key_list); + int get_foreign_key_list(THD *thd, List<FOREIGN_KEY_INFO> *f_key_list); bool can_switch_engines(); - uint referenced_by_foreign_key(); + uint referenced_by_foreign_key(); void free_foreign_key_create_info(char* str); - THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to, - enum thr_lock_type lock_type); + THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to, + enum thr_lock_type lock_type); void init_table_handle_for_HANDLER(); ulonglong get_auto_increment(); int reset_auto_increment(ulonglong value); virtual bool get_error_message(int error, String *buf); - uint8 table_cache_type() { return HA_CACHE_TBL_ASKTRANSACT; } - /* - ask handler about permission to cache table during query registration - */ - my_bool register_query_cache_table(THD *thd, char *table_key, + uint8 table_cache_type() { return HA_CACHE_TBL_ASKTRANSACT; } + /* + ask handler about permission to cache table during query registration + */ + my_bool register_query_cache_table(THD *thd, char *table_key, uint key_length, qc_engine_callback *call_back, ulonglong *engine_data) - { - *call_back= innobase_query_caching_of_table_permitted; - *engine_data= 0; - return innobase_query_caching_of_table_permitted(thd, table_key, - key_length, - engine_data); - } - static char *get_mysql_bin_log_name(); - static ulonglong get_mysql_bin_log_pos(); - bool primary_key_is_clustered() { return true; } - int cmp_ref(const byte *ref1, const byte *ref2); + { + *call_back= innobase_query_caching_of_table_permitted; + *engine_data= 0; + return innobase_query_caching_of_table_permitted(thd, table_key, + key_length, + engine_data); + } + static char *get_mysql_bin_log_name(); + static ulonglong get_mysql_bin_log_pos(); + bool primary_key_is_clustered() { return true; } + int cmp_ref(const byte *ref1, const byte *ref2); + bool check_if_incompatible_data(HA_CREATE_INFO *info, + uint table_changes); }; -extern struct show_var_st innodb_status_variables[]; +extern SHOW_VAR innodb_status_variables[]; +extern uint innobase_flush_log_at_trx_commit; extern ulong innobase_fast_shutdown; extern ulong innobase_large_page_size; extern long innobase_mirrored_log_groups, innobase_log_files_in_group; @@ -211,17 +226,18 @@ extern char *innobase_log_group_home_dir, *innobase_log_arch_dir; extern char *innobase_unix_file_flush_method; /* The following variables have to be my_bool for SHOW VARIABLES to work */ extern my_bool innobase_log_archive, - innobase_use_doublewrite, - innobase_use_checksums, - innobase_use_large_pages, - innobase_use_native_aio, - innobase_file_per_table, innobase_locks_unsafe_for_binlog, - innobase_create_status_file; -extern my_bool innobase_very_fast_shutdown; /* set this to 1 just before - calling innobase_end() if you want - InnoDB to shut down without - flushing the buffer pool: this - is equivalent to a 'crash' */ + innobase_use_doublewrite, + innobase_use_checksums, + innobase_use_large_pages, + innobase_use_native_aio, + innobase_file_per_table, innobase_locks_unsafe_for_binlog, + innobase_create_status_file; +extern my_bool innobase_very_fast_shutdown; /* set this to 1 just before + calling innobase_end() if + you want InnoDB to shut down + without flushing the buffer + pool: this is equivalent to + a 'crash' */ extern "C" { extern ulong srv_max_buf_pool_modified_pct; extern ulong srv_max_purge_lag; @@ -231,11 +247,10 @@ extern ulong srv_n_free_tickets_to_enter; extern ulong srv_thread_sleep_delay; extern ulong srv_thread_concurrency; extern ulong srv_commit_concurrency; -extern ulong srv_flush_log_at_trx_commit; } bool innobase_init(void); -bool innobase_end(void); +int innobase_end(ha_panic_function type); bool innobase_flush_logs(void); uint innobase_get_free_space(void); @@ -245,20 +260,18 @@ uint innobase_get_free_space(void); */ #if 0 int innobase_report_binlog_offset_and_commit( - THD* thd, + THD* thd, void* trx_handle, - char* log_file_name, - my_off_t end_offset); + char* log_file_name, + my_off_t end_offset); int innobase_commit_complete(void* trx_handle); void innobase_store_binlog_offset_and_flush_log(char *binlog_name,longlong offset); #endif -int innobase_drop_database(char *path); -bool innodb_show_status(THD* thd); -bool innodb_mutex_show_status(THD* thd); -void innodb_export_status(void); +void innobase_drop_database(char *path); +bool innobase_show_status(THD* thd, stat_print_fn*, enum ha_stat_type); -void innobase_release_temporary_latches(THD *thd); +int innobase_release_temporary_latches(THD *thd); void innobase_store_binlog_offset_and_flush_log(char *binlog_name,longlong offset); @@ -282,7 +295,7 @@ int innobase_xa_recover( /*====================*/ /* out: number of prepared transactions stored in xid_list */ - XID* xid_list, /* in/out: prepared transactions */ + XID* xid_list, /* in/out: prepared transactions */ uint len); /* in: number of slots in xid_list */ /*********************************************************************** |