mirror of
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17b4f99928
This commit is based on the work of Michal Schorm, rebased on the
earliest MariaDB version.
Th command line used to generate this diff was:
find ./ -type f \
-exec sed -i -e 's/Foundation, Inc., 59 Temple Place, Suite 330, Boston, /Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, /g' {} \; \
-exec sed -i -e 's/Foundation, Inc. 59 Temple Place.* Suite 330, Boston, /Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, /g' {} \; \
-exec sed -i -e 's/MA.*.....-1307.*USA/MA 02110-1335 USA/g' {} \; \
-exec sed -i -e 's/Foundation, Inc., 59 Temple/Foundation, Inc., 51 Franklin/g' {} \; \
-exec sed -i -e 's/Place, Suite 330, Boston, MA.*02111-1307.*USA/Street, Fifth Floor, Boston, MA 02110-1335 USA/g' {} \; \
-exec sed -i -e 's/MA.*.....-1307/MA 02110-1335/g' {} \;
71 lines
2.2 KiB
C
71 lines
2.2 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; /**< Tables 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 ULL(0x8000000000000000)
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#define MAX_TRID (~(TrID)0)
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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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