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81258f1432
This was because of a wrong test in encryption code that wrote random numbers over the LSN for pages for transactional Aria tables during repair. The effect was that after an ALTER TABLE ENABLE KEYS of a encrypted recovery of the tables would not work. Fixed by changing testing of !share->now_transactional to !share->base.born_transactional. Other things: - Extended Aria check_table() to check for wrong (= too big) LSN numbers. - If check_table() failed just because of wrong LSN or TRN numbers, a following repair table will just do a zerofill which is much faster. - Limit number of LSN errors in one check table to MAX_LSN_ERROR (10). - Removed old obsolete test of 'if (error_count & 2)'. Changed error_count and warning_count from bits to numbers of errors/warnings as this is more useful.
115 lines
3.6 KiB
C
115 lines
3.6 KiB
C
/* Copyright (C) 2007 MySQL AB & Sanja Belkin
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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 _ma_loghandler_lsn_h
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#define _ma_loghandler_lsn_h
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/*
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Transaction log record address:
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file_no << 32 | offset
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file_no is only 3 bytes so we can use signed integer to make
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comparison simpler.
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*/
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typedef int64 TRANSLOG_ADDRESS;
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/*
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Compare addresses
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A1 > A2 -> result > 0
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A1 == A2 -> 0
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A1 < A2 -> result < 0
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*/
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#define cmp_translog_addr(A1,A2) ((A1) - (A2))
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/*
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TRANSLOG_ADDRESS is just address of some byte in the log (usually some
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chunk)
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LSN used where address of some record in the log needed (not just any
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address)
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*/
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typedef TRANSLOG_ADDRESS LSN;
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/* Gets file number part of a LSN/log address */
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#define LSN_FILE_NO(L) (uint32) ((L) >> 32)
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/* Gets raw file number part of a LSN/log address */
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#define LSN_FILE_NO_PART(L) ((L) & ((int64)0xFFFFFF00000000LL))
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/* Parts of LSN for printing */
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#define LSN_IN_PARTS(L) (uint)LSN_FILE_NO(L),(uint)LSN_OFFSET(L)
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#define LSN_FMT "(%u,0x%x)"
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/* Gets record offset of a LSN/log address */
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#define LSN_OFFSET(L) (ulong) ((L) & 0xFFFFFFFFL)
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/* Makes lsn/log address from file number and record offset */
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#define MAKE_LSN(F,S) ((LSN) ((((uint64)(F)) << 32) | (S)))
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/* checks LSN */
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#define LSN_VALID(L) \
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((LSN_FILE_NO_PART(L) != FILENO_IMPOSSIBLE) && \
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(LSN_OFFSET(L) != LOG_OFFSET_IMPOSSIBLE))
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/* size of stored LSN on a disk, don't change it! */
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#define LSN_STORE_SIZE 7
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/* Puts LSN into buffer (dst) */
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#define lsn_store(dst, lsn) \
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do { \
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int3store((dst), LSN_FILE_NO(lsn)); \
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int4store((char*)(dst) + 3, LSN_OFFSET(lsn)); \
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} while (0)
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/* Unpacks LSN from the buffer (P) */
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#define lsn_korr(P) MAKE_LSN(uint3korr(P), uint4korr((const char*)(P) + 3))
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/* what we need to add to LSN to increase it on one file */
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#define LSN_ONE_FILE ((int64)0x100000000LL)
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#define LSN_REPLACE_OFFSET(L, S) (LSN_FILE_NO_PART(L) | (S))
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/*
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an 8-byte type whose most significant uchar is used for "flags"; 7
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other bytes are a LSN.
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*/
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typedef LSN LSN_WITH_FLAGS;
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#define LSN_WITH_FLAGS_TO_LSN(x) (x & 0x00FFFFFFFFFFFFFFULL)
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#define LSN_WITH_FLAGS_TO_FLAGS(x) (x & 0xFF00000000000000ULL)
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#define FILENO_IMPOSSIBLE 0 /**< log file's numbering starts at 1 */
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#define LOG_OFFSET_IMPOSSIBLE 0 /**< log always has a header */
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#define LSN_IMPOSSIBLE ((LSN)0)
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/* following LSN also is impossible */
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#define LSN_ERROR ((LSN)1)
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/** @brief some impossible LSN serve as markers */
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/**
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When table is modified by maria_chk, or auto-zerofilled, old REDOs don't
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apply, table is freshly born again somehow: its state's LSNs need to be
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updated to the new instance which receives this table.
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*/
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#define LSN_NEEDS_NEW_STATE_LSNS ((LSN)2)
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/**
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@brief the maximum valid LSN.
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Unlike ULONGLONG_MAX, it can be safely used in comparison with valid LSNs
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(ULONGLONG_MAX is too big for correctness of cmp_translog_addr()).
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*/
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#define LSN_MAX (LSN)0x00FFFFFFFFFFFFFFULL
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/* Max LSN error to print on check or recovery */
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#define MAX_LSN_ERRORS 10
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#endif
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