/* Copyright (C) 2006-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
This program is free software ; you can redistribute it and / or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation ; version 2 of the License .
This program is distributed in the hope that it will be useful ,
but WITHOUT ANY WARRANTY ; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the
GNU General Public License for more details .
You should have received a copy of the GNU General Public License
along with this program ; if not , write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
/*
External definitions for trnman . h
We need to split this into two files as gcc 4 . 1 . 2 gives error if it tries
to include my_atomic . h in C + + code .
*/
#ifndef _trnman_public_h
#define _trnman_public_h
#include "ma_loghandler_lsn.h"
#include <waiting_threads.h>
C_MODE_START
typedef uint64 TrID; /* our TrID is 6 bytes */
typedef struct st_ma_transaction TRN;
#define SHORT_TRID_MAX 65535
extern uint trnman_active_transactions, trnman_allocated_transactions;
extern TRN dummy_transaction_object;
extern my_bool (*trnman_end_trans_hook)(TRN *trn, my_bool commit,
my_bool active_transactions);
int trnman_init(TrID);
void trnman_destroy(void );
TRN *trnman_new_trn(WT_THD *wt);
my_bool trnman_end_trn(TRN *trn, my_bool commit);
#define trnman_commit_trn(T) trnman_end_trn(T, TRUE )
#define trnman_abort_trn(T) trnman_end_trn(T, FALSE )
#define trnman_rollback_trn(T) trnman_end_trn(T, FALSE )
int trnman_can_read_from(TRN *trn, TrID trid);
TRN *trnman_trid_to_trn(TRN *trn, TrID trid);
void trnman_new_statement(TRN *trn);
void trnman_rollback_statement(TRN *trn);
my_bool trnman_collect_transactions(LEX_STRING *str_act, LEX_STRING *str_com,
LSN *min_rec_lsn,
LSN *min_first_undo_lsn);
uint trnman_increment_locked_tables(TRN *trn);
uint trnman_decrement_locked_tables(TRN *trn);
uint trnman_has_locked_tables(TRN *trn);
void trnman_reset_locked_tables(TRN *trn, uint locked_tables);
TRN *trnman_recreate_trn_from_recovery(uint16 shortid, TrID longid);
TRN *trnman_get_any_trn(void );
void trnman_init_tmp_trn_for_logging_trid(TRN *trn);
TrID trnman_get_min_trid(void );
TrID trnman_get_max_trid(void );
TrID trnman_get_min_safe_trid();
my_bool trnman_exists_active_transactions(TrID min_id, TrID max_id,
my_bool trnman_is_locked);
#define TRANSID_SIZE 6
#define transid_store(dst, id) int6store(dst,id)
#define transid_korr(P) uint6korr(P)
void trnman_lock();
void trnman_unlock();
my_bool trman_is_inited();
#ifdef EXTRA_DEBUG
uint16 trnman_get_flags(TRN *);
void trnman_set_flags(TRN *, uint16 flags);
#else
#define trnman_get_flags(A) 0
#define trnman_set_flags(A, B) do { } while (0 )
#endif
/* Flag bits */
#define TRN_STATE_INFO_LOGGED 1 /* Query is logged */
#define TRN_STATE_TABLES_CAN_CHANGE 2 /* Things can change during trans. */
C_MODE_END
#endif
Messung V0.5 in Prozent C=94 H=84 G=88
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-10-08)
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