1 /* Copyright (C) 2006 MySQL AB & MySQL Finland AB & TCX DataKonsult AB 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 17 /* 18 Static variables for MARIA library. All definied here for easy making of 19 a shared library 20 */ 21 22 #ifndef MY_GLOBAL_INCLUDED 23 #include "maria_def.h" 24 #include "trnman.h" 25 #endif 26 27 LIST *maria_open_list=0; 28 uchar maria_file_magic[]= 29 { (uchar) 254, (uchar) 254, (uchar) 9, '\003', }; 30 uchar maria_pack_file_magic[]= 31 { (uchar) 254, (uchar) 254, (uchar) 10, '\001', }; 32 /* Unique number for this maria instance */ 33 uchar maria_uuid[MY_UUID_SIZE]; 34 uint maria_quick_table_bits=9; 35 ulong maria_block_size= MARIA_KEY_BLOCK_LENGTH; 36 my_bool maria_flush= 0, maria_single_user= 0; 37 my_bool maria_delay_key_write= 0, maria_page_checksums= 1; 38 my_bool maria_inited= FALSE; 39 my_bool maria_in_ha_maria= FALSE; /* If used from ha_maria or not */ 40 my_bool maria_recovery_changed_data= 0, maria_recovery_verbose= 0; 41 my_bool maria_assert_if_crashed_table= 0; 42 my_bool maria_checkpoint_disabled= 0; 43 my_bool maria_encrypt_tables= 0; 44 45 mysql_mutex_t THR_LOCK_maria; 46 #ifdef DONT_USE_RW_LOCKS 47 ulong maria_concurrent_insert= 0; 48 #else 49 /* Do concurrent inserts at file end or in old holes */ 50 ulong maria_concurrent_insert= 2; 51 #endif 52 53 my_off_t maria_max_temp_length= MAX_FILE_SIZE; 54 ulong maria_bulk_insert_tree_size=8192*1024; 55 ulong maria_data_pointer_size= 6; 56 57 PAGECACHE maria_pagecache_var; 58 PAGECACHE *maria_pagecache= &maria_pagecache_var; 59 60 PAGECACHE maria_log_pagecache_var; 61 PAGECACHE *maria_log_pagecache= &maria_log_pagecache_var; 62 MY_TMPDIR *maria_tmpdir; /* Tempdir for redo */ 63 char *maria_data_root; 64 HASH maria_stored_state; 65 int (*maria_create_trn_hook)(MARIA_HA *); 66 67 /** 68 @brief when transactionality does not matter we can use this transaction 69 70 Used in external programs like ma_test*, and also internally inside 71 libmaria when there is no transaction around and the operation isn't 72 transactional (CREATE/DROP/RENAME/OPTIMIZE/REPAIR). 73 */ 74 TRN dummy_transaction_object; 75 76 /* a WT_RESOURCE_TYPE for transactions waiting on a unique key conflict */ 77 WT_RESOURCE_TYPE ma_rc_dup_unique={ wt_resource_id_memcmp, 0}; 78 79 /* Enough for comparing if number is zero */ 80 uchar maria_zero_string[]= {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; 81 82 /* 83 read_vec[] is used for converting between P_READ_KEY.. and SEARCH_ 84 Position is , == , >= , <= , > , < 85 */ 86 87 uint32 maria_read_vec[]= 88 { 89 SEARCH_FIND, /* HA_READ_KEY_EXACT */ 90 SEARCH_FIND | SEARCH_BIGGER, /* HA_READ_KEY_OR_NEXT */ 91 SEARCH_FIND | SEARCH_SMALLER, /* HA_READ_KEY_OR_PREV */ 92 SEARCH_NO_FIND | SEARCH_BIGGER, /* HA_READ_AFTER_KEY */ 93 SEARCH_NO_FIND | SEARCH_SMALLER, /* HA_READ_BEFORE_KEY */ 94 SEARCH_FIND | SEARCH_PART_KEY, /* HA_READ_PREFIX */ 95 SEARCH_LAST, /* HA_READ_PREFIX_LAST */ 96 SEARCH_LAST | SEARCH_SMALLER, /* HA_READ_PREFIX_LAST_OR_PREV */ 97 MBR_CONTAIN, /* HA_READ_MBR_CONTAIN */ 98 MBR_INTERSECT, /* HA_READ_MBR_INTERSECT */ 99 MBR_WITHIN, /* HA_READ_MBR_WITHIN */ 100 MBR_DISJOINT, /* HA_READ_MBR_DISJOINT */ 101 MBR_EQUAL /* HA_READ_MBR_EQUAL */ 102 }; 103 104 uint32 maria_readnext_vec[]= 105 { 106 SEARCH_BIGGER, SEARCH_BIGGER, SEARCH_SMALLER, SEARCH_BIGGER, SEARCH_SMALLER, 107 SEARCH_BIGGER, SEARCH_SMALLER, SEARCH_SMALLER 108 }; 109 110 my_bool (*ma_killed)(MARIA_HA *)= ma_killed_standalone; 111 112 #ifdef HAVE_PSI_INTERFACE 113 114 PSI_mutex_key key_SHARE_BITMAP_lock, key_SORT_INFO_mutex, 115 key_THR_LOCK_maria, key_TRANSLOG_BUFFER_mutex, 116 key_LOCK_soft_sync, 117 key_TRANSLOG_DESCRIPTOR_dirty_buffer_mask_lock, 118 key_TRANSLOG_DESCRIPTOR_sent_to_disk_lock, 119 key_TRANSLOG_DESCRIPTOR_log_flush_lock, 120 key_TRANSLOG_DESCRIPTOR_file_header_lock, 121 key_TRANSLOG_DESCRIPTOR_unfinished_files_lock, 122 key_TRANSLOG_DESCRIPTOR_purger_lock, 123 key_SHARE_intern_lock, key_SHARE_key_del_lock, 124 key_SHARE_close_lock, key_PAGECACHE_cache_lock, 125 key_SERVICE_THREAD_CONTROL_lock, 126 key_LOCK_trn_list, key_TRN_state_lock; 127 128 PSI_cond_key key_SHARE_key_del_cond, key_SERVICE_THREAD_CONTROL_cond, 129 key_SORT_INFO_cond, key_SHARE_BITMAP_cond, 130 key_COND_soft_sync, key_TRANSLOG_BUFFER_waiting_filling_buffer, 131 key_TRANSLOG_BUFFER_prev_sent_to_disk_cond, 132 key_TRANSLOG_DESCRIPTOR_log_flush_cond, 133 key_TRANSLOG_DESCRIPTOR_new_goal_cond; 134 135 PSI_rwlock_key key_KEYINFO_root_lock, key_SHARE_mmap_lock, 136 key_TRANSLOG_DESCRIPTOR_open_files_lock; 137 138 PSI_thread_key key_thread_checkpoint, key_thread_find_all_keys, 139 key_thread_soft_sync; 140 141 PSI_file_key key_file_translog, key_file_kfile, key_file_dfile, 142 key_file_control, key_file_tmp; 143 144 #endif /* HAVE_PSI_INTERFACE */ 145 146 /* Note that PSI_stage_info globals must always be declared. */ 147 PSI_stage_info stage_waiting_for_a_resource= { 0, "Waiting for a resource", 0}; 148