mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 19:06:14 +01:00
8eba777c2b
Changes: - Initalize Aria early to allow it to load mysql.plugin table with --help - Don't print 'aborting' when doing --help - Don't write 'loose' error messages on log_warning < 2 (2 is default) - Don't write warnings about disabled plugings when doing --help - Don't write aria_log_control or aria log files when doing --help - When using --help, open all Aria tables in read only mode (safety) - If aria_init() fails, do a cleanup(). (Frees used memory) - If aria_log_control is locked with --help, then don't wait 30 seconds but instead return at once without initialzing Aria plugin.
73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/* Copyright (C) 2006-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
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#ifndef _trnman_h
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#define _trnman_h
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C_MODE_START
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#include <lf.h>
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#include "trnman_public.h"
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#include "ma_loghandler_lsn.h"
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/**
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trid - 6 uchar transaction identifier. Assigned when a transaction
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is created. Transaction can always be identified by its trid,
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even after transaction has ended.
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short_id - 2-byte transaction identifier, identifies a running
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transaction, is reassigned when transaction ends.
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when short_id is 0, TRN is not initialized, for all practical purposes
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it could be considered unused.
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when commit_trid is MAX_TRID the transaction is running, otherwise it's
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committed.
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state_lock mutex protects the state of a TRN, that is whether a TRN
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is committed/running/unused. Meaning that modifications of short_id and
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commit_trid happen under this mutex.
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*/
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struct st_ma_transaction
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{
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LF_PINS *pins;
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WT_THD *wt;
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mysql_mutex_t state_lock;
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void *used_tables; /**< Table shares used by transaction */
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void *used_instances; /* table files used by transaction */
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TRN *next, *prev;
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TrID trid, min_read_from, commit_trid;
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LSN rec_lsn, undo_lsn;
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LSN_WITH_FLAGS first_undo_lsn;
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uint locked_tables;
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uint16 short_id;
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uint16 flags; /**< Various flags */
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};
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#define TRANSACTION_LOGGED_LONG_ID 0x8000000000000000ULL
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#define MAX_TRID (~(TrID)0)
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#define MAX_INTERNAL_TRID 0xffffffffffffLL
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extern WT_RESOURCE_TYPE ma_rc_dup_unique;
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#ifdef HAVE_PSI_INTERFACE
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extern PSI_mutex_key key_LOCK_trn_list, key_TRN_state_lock;
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#endif
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C_MODE_END
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#endif
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