1 /* Copyright (C) 2008 Sun AB & Michael Widenius 2 3 This program is free software; you can redistribute it and/or modify 4 it under the terms of the GNU General Public License as published by 5 the Free Software Foundation; version 2 of the License. 6 7 This program is distributed in the hope that it will be useful, 8 but WITHOUT ANY WARRANTY; without even the implied warranty of 9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 GNU General Public License for more details. 11 12 You should have received a copy of the GNU General Public License 13 along with this program; if not, write to the Free Software 14 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */ 15 16 #ifndef MA_STATE_INCLUDED 17 #define MA_STATE_INCLUDED 18 C_MODE_START 19 20 /* Struct to store tables in use by one transaction */ 21 22 typedef struct st_maria_status_info 23 { 24 ha_rows records; /* Rows in table */ 25 ha_rows del; /* Removed rows */ 26 my_off_t empty; /* lost space in datafile */ 27 my_off_t key_empty; /* lost space in indexfile */ 28 my_off_t key_file_length; 29 my_off_t data_file_length; 30 ha_checksum checksum; 31 uint32 changed:1, /* Set if table was changed */ 32 no_transid:1; /* Set if no transid was set on rows */ 33 } MARIA_STATUS_INFO; 34 35 36 typedef struct st_used_tables { 37 struct st_used_tables *next; 38 struct st_maria_share *share; 39 MARIA_STATUS_INFO state_current; 40 MARIA_STATUS_INFO state_start; 41 uint use_count; 42 } MARIA_USED_TABLES; 43 44 45 /* Struct to store commit state at different times */ 46 47 typedef struct st_state_history { 48 struct st_state_history *next; 49 TrID trid; 50 MARIA_STATUS_INFO state; 51 } MARIA_STATE_HISTORY; 52 53 54 /* struct to remember history for closed tables */ 55 56 typedef struct st_state_history_closed { 57 LSN create_rename_lsn; 58 MARIA_STATE_HISTORY *state_history; 59 } MARIA_STATE_HISTORY_CLOSED; 60 61 62 my_bool _ma_setup_live_state(MARIA_HA *info); 63 MARIA_STATE_HISTORY *_ma_remove_not_visible_states(MARIA_STATE_HISTORY 64 *org_history, 65 my_bool all, 66 my_bool trman_is_locked); 67 void _ma_reset_state(MARIA_HA *info); 68 my_bool _ma_get_status(void* param, my_bool concurrent_insert); 69 void _ma_update_status(void* param); 70 void _ma_update_status_with_lock(MARIA_HA *info); 71 void _ma_restore_status(void *param); 72 void _ma_copy_status(void* to, void *from); 73 my_bool _ma_reset_update_flag(void *param, my_bool concurrent_insert); 74 my_bool _ma_start_trans(void* param); 75 my_bool _ma_check_status(void *param); 76 void maria_versioning(MARIA_HA *info, my_bool versioning); 77 void _ma_set_share_data_file_length(struct st_maria_share *share, 78 ulonglong new_length); 79 void _ma_copy_nontrans_state_information(MARIA_HA *info); 80 my_bool _ma_trnman_end_trans_hook(TRN *trn, my_bool commit, 81 my_bool active_transactions); 82 my_bool _ma_row_visible_always(MARIA_HA *info); 83 my_bool _ma_row_visible_non_transactional_table(MARIA_HA *info); 84 my_bool _ma_row_visible_transactional_table(MARIA_HA *info); 85 void _ma_remove_not_visible_states_with_lock(struct st_maria_share *share, 86 my_bool all); 87 void _ma_remove_table_from_trnman(MARIA_HA *info); 88 void _ma_reset_history(struct st_maria_share *share); 89 90 C_MODE_END 91 #endif 92