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f8c1059cbf
include/waiting_threads.h: C_MODE_START/END mysys/waiting_threads.c: relax the checks - auto init thd in will_wait_for, allow to destroy uninited thd (=noop), allow a "release" an unexistent resource (=noop), sql/sql_class.cc: move wt* maintainance from maria to the server. do THD::cleanup after ha_close_connection() and plugin_thdvar_cleanup(). storage/maria/unittest/trnman-t.c: update to new prototype
73 lines
2.7 KiB
C
73 lines
2.7 KiB
C
/* Copyright (C) 2006 MySQL 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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External definitions for trnman.h
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We need to split this into two files as gcc 4.1.2 gives error if it tries
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to include my_atomic.h in C++ code.
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*/
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#ifndef _trnman_public_h
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#define _trnman_public_h
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#include "ma_loghandler_lsn.h"
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#include <waiting_threads.h>
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C_MODE_START
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typedef uint64 TrID; /* our TrID is 6 bytes */
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typedef struct st_ma_transaction TRN;
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#define SHORT_TRID_MAX 65535
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extern uint trnman_active_transactions, trnman_allocated_transactions;
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extern TRN dummy_transaction_object;
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extern my_bool (*trnman_end_trans_hook)(TRN *trn, my_bool commit,
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my_bool active_transactions);
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int trnman_init(TrID);
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void trnman_destroy(void);
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TRN *trnman_new_trn(WT_THD *wt);
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my_bool trnman_end_trn(TRN *trn, my_bool commit);
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#define trnman_commit_trn(T) trnman_end_trn(T, TRUE)
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#define trnman_abort_trn(T) trnman_end_trn(T, FALSE)
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#define trnman_rollback_trn(T) trnman_end_trn(T, FALSE)
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void trnman_free_trn(TRN *trn);
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int trnman_can_read_from(TRN *trn, TrID trid);
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TRN *trnman_trid_to_trn(TRN *trn, TrID trid);
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void trnman_new_statement(TRN *trn);
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void trnman_rollback_statement(TRN *trn);
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my_bool trnman_collect_transactions(LEX_STRING *str_act, LEX_STRING *str_com,
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LSN *min_rec_lsn,
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LSN *min_first_undo_lsn);
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uint trnman_increment_locked_tables(TRN *trn);
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uint trnman_decrement_locked_tables(TRN *trn);
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uint trnman_has_locked_tables(TRN *trn);
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void trnman_reset_locked_tables(TRN *trn, uint locked_tables);
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TRN *trnman_recreate_trn_from_recovery(uint16 shortid, TrID longid);
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TRN *trnman_get_any_trn(void);
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TrID trnman_get_min_trid(void);
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TrID trnman_get_max_trid(void);
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TrID trnman_get_min_safe_trid();
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my_bool trnman_exists_active_transactions(TrID min_id, TrID max_id,
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my_bool trnman_is_locked);
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#define TRANSID_SIZE 6
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#define transid_store(dst, id) int6store(dst,id)
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#define transid_korr(P) uint6korr(P)
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void trnman_lock();
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void trnman_unlock();
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C_MODE_END
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#endif
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