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ffa8c4cfcc
support ha_innodb.so as a dynamic plugin. * remove obsolete *,innodb_plugin.rdiff files * s/--plugin-load=/--plugin-load-add=/ * MYSQL_PLUGIN_IMPORT glob_hostname[] * use my_error instead of push_warning_printf(ER_DEFAULT) * don't use tdc_size and tc_size in a module update test cases (XtraDB is 5.6.14, InnoDB is 5.6.10) * copy new tests over * disable some tests for (old) InnoDB * delete XtraDB tests that no longer apply small compatibility changes: * s/HTON_EXTENDED_KEYS/HTON_SUPPORTS_EXTENDED_KEYS/ * revert unnecessary InnoDB changes to make it a bit closer to the upstream fix XtraDB to compile on Windows (both as a static and a dynamic plugin) disable XtraDB on Windows (deadlocks) and where no atomic ops are available (e.g. CentOS 5) storage/innobase/handler/ha_innodb.cc: revert few unnecessary changes to make it a bit closer to the original InnoDB storage/innobase/include/univ.i: correct the version to match what it was merged from
92 lines
2.7 KiB
Text
92 lines
2.7 KiB
Text
/*****************************************************************************
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Copyright (c) 1996, 2009, Oracle and/or its affiliates. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
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*****************************************************************************/
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/**************************************************//**
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@file include/lock0lock.ic
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The transaction lock system
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Created 5/7/1996 Heikki Tuuri
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*******************************************************/
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#include "sync0sync.h"
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#include "srv0srv.h"
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#include "dict0dict.h"
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#include "row0row.h"
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#include "trx0sys.h"
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#include "trx0trx.h"
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#include "buf0buf.h"
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#include "page0page.h"
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#include "page0cur.h"
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#include "row0vers.h"
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#include "que0que.h"
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#include "btr0cur.h"
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#include "read0read.h"
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#include "log0recv.h"
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/*********************************************************************//**
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Calculates the fold value of a page file address: used in inserting or
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searching for a lock in the hash table.
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@return folded value */
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UNIV_INLINE
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ulint
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lock_rec_fold(
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/*==========*/
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ulint space, /*!< in: space */
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ulint page_no)/*!< in: page number */
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{
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return(ut_fold_ulint_pair(space, page_no));
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}
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/*********************************************************************//**
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Calculates the hash value of a page file address: used in inserting or
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searching for a lock in the hash table.
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@return hashed value */
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UNIV_INLINE
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ulint
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lock_rec_hash(
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/*==========*/
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ulint space, /*!< in: space */
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ulint page_no)/*!< in: page number */
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{
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return(hash_calc_hash(lock_rec_fold(space, page_no),
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lock_sys->rec_hash));
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}
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/*********************************************************************//**
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Gets the heap_no of the smallest user record on a page.
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@return heap_no of smallest user record, or PAGE_HEAP_NO_SUPREMUM */
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UNIV_INLINE
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ulint
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lock_get_min_heap_no(
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/*=================*/
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const buf_block_t* block) /*!< in: buffer block */
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{
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const page_t* page = block->frame;
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if (page_is_comp(page)) {
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return(rec_get_heap_no_new(
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page
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+ rec_get_next_offs(page + PAGE_NEW_INFIMUM,
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TRUE)));
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} else {
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return(rec_get_heap_no_old(
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page
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+ rec_get_next_offs(page + PAGE_OLD_INFIMUM,
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FALSE)));
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}
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}
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