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82d7938905
Fixed several (but not all) issues found by the test program: - ASSERT on row_length in ma_blockrec.c::_ma_compact_block_page() - Fixed bug when splitting node pages - Fixed hang in 'closeing tables' (conflicting mutex order) by ensuring we first take trnman lock and then share->intern_lock storage/maria/ma_blockrec.c: When compacting a row page when allocating space for a new row, the min length of a the new block may be temporarly smaller than 'min_block_length'. storage/maria/ma_check.c: More DBUG output storage/maria/ma_checkpoint.c: Call new function _ma_remove_not_visible_states_with_lock() to ensure we first take lock on trnman and then on share->intern_lock + storage/maria/ma_close.c: Added comment storage/maria/ma_open.c: Added comment storage/maria/ma_search.c: Copy also node data; Caused bug when splitting node pages storage/maria/ma_state.c: Added _ma_remove_not_visible_states_with_lock() to ensure we take locks in right order storage/maria/ma_state.h: Added new prototype storage/maria/trnman.c: Added trnman_lock() and trnman_unlock(). Needed by _ma_remove_not_visible_states_with_lock() to get mutex in right order storage/maria/trnman_public.h: Added new prototypes
71 lines
2.6 KiB
C
71 lines
2.6 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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C_MODE_START
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typedef uint64 TrID; /* our TrID is 6 bytes */
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typedef struct st_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(pthread_mutex_t *, pthread_cond_t *, void *);
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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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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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