mirror of
https://github.com/MariaDB/server.git
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6da8ac5f71
This makes it possible to do safe multi volume snapshots as long as one snapshots the volume with the transaction logs last. include/mysql_com.h: Added REFRESH_CHECKPOINT mysql-test/r/flush.result: Added test of new FLUSH TABLES syntax + calls to checkpoint_status handler calls mysql-test/t/flush.test: Added test of new FLUSH TABLES syntax + calls to checkpoint_status handler calls sql/handler.cc: Added code to call checkpoint_state for all handlertons that supports it sql/handler.h: Added new checkpoint_state() handlerton call to temporarly disable checkpoints. sql/lex.h: Added CHECKPOINT keyword sql/sql_yacc.yy: Added support for FLUSH TABLES WITH READ LOCK AND DISABLE CHECKPOINT storage/maria/ha_maria.cc: Added handlerton call to disable checkpoints. storage/maria/ma_checkpoint.c: Don't do checkpoint if checkpoints are disabled. storage/maria/ma_static.c: Added maria_checkpoint_disabled storage/maria/maria_def.h: Added maria_checkpoint_disabled storage/xtradb/handler/ha_innodb.cc: Added handlerton call to disable checkpoints. storage/xtradb/include/log0log.h: Added option to log_checkpoint() to allow one to ignore not critical checkpoints during the time checkpoints are disabled. storage/xtradb/log/log0log.c: Added code to allow one to disable checkpoints during a FLUSH TABLES ... DISABLE CHECKPOINT This was done by adding a new argument to log_checkpoint() which tells us when the checkpoint is called by srv_master_thread (which are safe to ignore) storage/xtradb/srv/srv0srv.c: Tell log_checkpoint() that checkpoints from srv_master_thread() are safe to ignore (will just delay recovery time a bit).
115 lines
4.1 KiB
C
115 lines
4.1 KiB
C
/* Copyright (C) 2006 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/*
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Static variables for MARIA library. All definied here for easy making of
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a shared library
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*/
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#ifndef _global_h
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#include "maria_def.h"
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#include "trnman.h"
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#endif
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LIST *maria_open_list=0;
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uchar maria_file_magic[]=
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{ (uchar) 254, (uchar) 254, (uchar) 9, '\003', };
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uchar maria_pack_file_magic[]=
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{ (uchar) 254, (uchar) 254, (uchar) 10, '\001', };
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/* Unique number for this maria instance */
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uchar maria_uuid[MY_UUID_SIZE];
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uint maria_quick_table_bits=9;
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ulong maria_block_size= MARIA_KEY_BLOCK_LENGTH;
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my_bool maria_flush= 0, maria_single_user= 0;
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my_bool maria_delay_key_write= 0, maria_page_checksums= 1;
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my_bool maria_inited= FALSE;
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my_bool maria_in_ha_maria= FALSE; /* If used from ha_maria or not */
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my_bool maria_recovery_changed_data= 0, maria_recovery_verbose= 0;
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my_bool maria_assert_if_crashed_table= 0;
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my_bool maria_checkpoint_disabled= 0;
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pthread_mutex_t THR_LOCK_maria;
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#if defined(THREAD) && !defined(DONT_USE_RW_LOCKS)
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ulong maria_concurrent_insert= 2;
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#else
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ulong maria_concurrent_insert= 0;
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#endif
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my_off_t maria_max_temp_length= MAX_FILE_SIZE;
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ulong maria_bulk_insert_tree_size=8192*1024;
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ulong maria_data_pointer_size= 4;
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PAGECACHE maria_pagecache_var;
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PAGECACHE *maria_pagecache= &maria_pagecache_var;
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PAGECACHE maria_log_pagecache_var;
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PAGECACHE *maria_log_pagecache= &maria_log_pagecache_var;
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MY_TMPDIR *maria_tmpdir; /* Tempdir for redo */
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char *maria_data_root;
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HASH maria_stored_state;
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int (*maria_create_trn_hook)(MARIA_HA *);
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/**
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@brief when transactionality does not matter we can use this transaction
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Used in external programs like ma_test*, and also internally inside
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libmaria when there is no transaction around and the operation isn't
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transactional (CREATE/DROP/RENAME/OPTIMIZE/REPAIR).
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*/
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TRN dummy_transaction_object;
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/* a WT_RESOURCE_TYPE for transactions waiting on a unique key conflict */
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WT_RESOURCE_TYPE ma_rc_dup_unique={ wt_resource_id_memcmp, 0};
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/* Enough for comparing if number is zero */
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uchar maria_zero_string[]= {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
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/*
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read_vec[] is used for converting between P_READ_KEY.. and SEARCH_
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Position is , == , >= , <= , > , <
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*/
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uint32 maria_read_vec[]=
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{
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SEARCH_FIND, /* HA_READ_KEY_EXACT */
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SEARCH_FIND | SEARCH_BIGGER, /* HA_READ_KEY_OR_NEXT */
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SEARCH_FIND | SEARCH_SMALLER, /* HA_READ_KEY_OR_PREV */
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SEARCH_NO_FIND | SEARCH_BIGGER, /* HA_READ_AFTER_KEY */
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SEARCH_NO_FIND | SEARCH_SMALLER, /* HA_READ_BEFORE_KEY */
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SEARCH_FIND | SEARCH_PART_KEY, /* HA_READ_PREFIX */
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SEARCH_LAST, /* HA_READ_PREFIX_LAST */
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SEARCH_LAST | SEARCH_SMALLER, /* HA_READ_PREFIX_LAST_OR_PREV */
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MBR_CONTAIN, /* HA_READ_MBR_CONTAIN */
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MBR_INTERSECT, /* HA_READ_MBR_INTERSECT */
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MBR_WITHIN, /* HA_READ_MBR_WITHIN */
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MBR_DISJOINT, /* HA_READ_MBR_DISJOINT */
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MBR_EQUAL /* HA_READ_MBR_EQUAL */
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};
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uint32 maria_readnext_vec[]=
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{
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SEARCH_BIGGER, SEARCH_BIGGER, SEARCH_SMALLER, SEARCH_BIGGER, SEARCH_SMALLER,
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SEARCH_BIGGER, SEARCH_SMALLER, SEARCH_SMALLER
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};
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static int always_valid(const char *filename __attribute__((unused)))
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{
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return 0;
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}
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int (*maria_test_invalid_symlink)(const char *filename)= always_valid;
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my_bool (*ma_killed)(MARIA_HA *)= ma_killed_standalone;
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