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/* Copyright (C) 2006 MySQL AB
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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"
C_MODE_START
typedef uint64 TrID; /* our TrID is 6 bytes */
typedef struct st_transaction TRN;
#define SHORT_TRID_MAX 65535
extern uint trnman_active_transactions, trnman_allocated_transactions;
extern TRN dummy_transaction_object;
int trnman_init(TrID);
void trnman_destroy(void);
TRN *trnman_new_trn(pthread_mutex_t *, pthread_cond_t *, void *);
int 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)
void trnman_free_trn(TRN *trn);
int trnman_can_read_from(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);
my_bool trnman_has_locked_tables(TRN *trn);
void trnman_reset_locked_tables(TRN *trn);
TRN *trnman_recreate_trn_from_recovery(uint16 shortid, TrID longid);
TRN *trnman_get_any_trn();
C_MODE_END
#endif
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