| 352 | */ |
| 353 | |
| 354 | TABLE_SHARE *alloc_table_share(const char *db, const char *table_name, |
| 355 | const char *key, uint key_length) |
| 356 | { |
| 357 | MEM_ROOT mem_root; |
| 358 | TABLE_SHARE *share; |
| 359 | char *key_buff, *path_buff; |
| 360 | char path[FN_REFLEN]; |
| 361 | uint path_length; |
| 362 | DBUG_ENTER("alloc_table_share"); |
| 363 | DBUG_PRINT("enter", ("table: '%s'.'%s'", db, table_name)); |
| 364 | |
| 365 | path_length= build_table_filename(path, sizeof(path) - 1, |
| 366 | db, table_name, "", 0); |
| 367 | init_sql_alloc(key_memory_table_share, &mem_root, TABLE_ALLOC_BLOCK_SIZE, |
| 368 | TABLE_PREALLOC_BLOCK_SIZE, MYF(0)); |
| 369 | if (multi_alloc_root(&mem_root, |
| 370 | &share, sizeof(*share), |
| 371 | &key_buff, key_length, |
| 372 | &path_buff, path_length + 1, |
| 373 | NULL)) |
| 374 | { |
| 375 | bzero((char*) share, sizeof(*share)); |
| 376 | |
| 377 | share->set_table_cache_key(key_buff, key, key_length); |
| 378 | |
| 379 | share->path.str= path_buff; |
| 380 | share->path.length= path_length; |
| 381 | strmov(path_buff, path); |
| 382 | share->normalized_path.str= share->path.str; |
| 383 | share->normalized_path.length= path_length; |
| 384 | share->table_category= get_table_category(share->db, share->table_name); |
| 385 | share->open_errno= ENOENT; |
| 386 | /* The following will be updated in open_table_from_share */ |
| 387 | share->can_do_row_logging= 1; |
| 388 | if (share->table_category == TABLE_CATEGORY_LOG) |
| 389 | share->no_replicate= 1; |
| 390 | if (key_length > 6 && |
| 391 | table_alias_charset->strnncoll(key, 6, "mysql", 6) == 0) |
| 392 | share->not_usable_by_query_cache= 1; |
| 393 | |
| 394 | memcpy((char*) &share->mem_root, (char*) &mem_root, sizeof(mem_root)); |
| 395 | mysql_mutex_init(key_TABLE_SHARE_LOCK_share, |
| 396 | &share->LOCK_share, MY_MUTEX_INIT_SLOW); |
| 397 | mysql_mutex_init(key_TABLE_SHARE_LOCK_ha_data, |
| 398 | &share->LOCK_ha_data, MY_MUTEX_INIT_FAST); |
| 399 | mysql_mutex_init(key_TABLE_SHARE_LOCK_statistics, |
| 400 | &share->LOCK_statistics, MY_MUTEX_INIT_SLOW); |
| 401 | |
| 402 | DBUG_EXECUTE_IF("simulate_big_table_id", |
| 403 | if (last_table_id < UINT_MAX32) |
| 404 | last_table_id= UINT_MAX32-1;); |
| 405 | /* |
| 406 | Replication is using 6 bytes as table_map_id. Ensure that |
| 407 | the 6 lowest bytes are not 0. |
| 408 | We also have to ensure that we do not use the special value |
| 409 | UINT_MAX32 as this is used to mark a dummy event row event. See |
| 410 | comments in Rows_log_event::Rows_log_event(). |
| 411 | */ |
no test coverage detected