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------------------------------------------------------------------------ r5092 | marko | 2009-05-25 09:54:17 +0300 (Mon, 25 May 2009) | 1 line branches/zip: Adjust some function comments after r5091. ------------------------------------------------------------------------ r5100 | marko | 2009-05-25 12:09:45 +0300 (Mon, 25 May 2009) | 1 line branches/zip: Split some long lines that were introduced in r5091. ------------------------------------------------------------------------ r5101 | marko | 2009-05-25 12:42:47 +0300 (Mon, 25 May 2009) | 2 lines branches/zip: Introduce the macro TEMP_INDEX_PREFIX_STR. This is to avoid triggering an error in Doxygen. ------------------------------------------------------------------------ r5102 | marko | 2009-05-25 13:47:14 +0300 (Mon, 25 May 2009) | 1 line branches/zip: Add missing file comments. ------------------------------------------------------------------------ r5103 | marko | 2009-05-25 13:52:29 +0300 (Mon, 25 May 2009) | 10 lines branches/zip: Add @file comments, and convert decorative /********************************* comments to Doxygen /** style like this: /*****************************//** This conversion was performed by the following command: perl -i -e 'while(<ARGV>){if (m|^/\*{30}\**$|) { s|\*{4}$|//**| if ++$com>1; $_ .= "\@file $ARGV\n" if $com==2} print; if(eof){$.=0;undef $com}}' */*[ch] include/univ.i ------------------------------------------------------------------------ r5104 | marko | 2009-05-25 14:39:07 +0300 (Mon, 25 May 2009) | 2 lines branches/zip: Revert ut0auxconf_* to r5102, that is, make Doxygen ignore these test programs. ------------------------------------------------------------------------ r5105 | marko | 2009-05-25 14:52:20 +0300 (Mon, 25 May 2009) | 2 lines branches/zip: Enclose some #error checks inside #ifndef DOXYGEN to prevent bogus Doxygen errors. ------------------------------------------------------------------------ r5106 | marko | 2009-05-25 16:09:24 +0300 (Mon, 25 May 2009) | 2 lines branches/zip: Add some Doxygen comments, mainly to structs, typedefs, macros and global variables. Many more to go. ------------------------------------------------------------------------ r5108 | marko | 2009-05-26 00:32:35 +0300 (Tue, 26 May 2009) | 2 lines branches/zip: lexyy.c: Remove the inadvertently added @file directive. There is nothing for Doxygen to see in this file, move along. ------------------------------------------------------------------------ r5125 | marko | 2009-05-26 16:28:49 +0300 (Tue, 26 May 2009) | 3 lines branches/zip: Add some Doxygen comments for many structs, typedefs, #defines and global variables. Many are still missing. ------------------------------------------------------------------------ r5134 | marko | 2009-05-27 09:08:43 +0300 (Wed, 27 May 2009) | 1 line branches/zip: Add some Doxygen @return comments. ------------------------------------------------------------------------ r5139 | marko | 2009-05-27 10:01:40 +0300 (Wed, 27 May 2009) | 1 line branches/zip: Add Doxyfile. ------------------------------------------------------------------------ r5143 | marko | 2009-05-27 10:57:25 +0300 (Wed, 27 May 2009) | 3 lines branches/zip: buf0buf.h, Doxyfile: Fix the Doxygen translation. @defgroup is for source code modules, not for field groups. Tell Doxygen to expand the UT_LIST declarations. ------------------------------------------------------------------------
108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
/*****************************************************************************
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Copyright (c) 2007, 2009, Innobase Oy. 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., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA
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*****************************************************************************/
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/**************************************************//**
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@file include/lock0priv.h
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Lock module internal structures and methods.
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Created July 12, 2007 Vasil Dimov
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*******************************************************/
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#ifndef lock0priv_h
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#define lock0priv_h
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#ifndef LOCK_MODULE_IMPLEMENTATION
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/* If you need to access members of the structures defined in this
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file, please write appropriate functions that retrieve them and put
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those functions in lock/ */
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#error Do not include lock0priv.h outside of the lock/ module
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#endif
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#include "univ.i"
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#include "dict0types.h"
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#include "hash0hash.h"
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#include "trx0types.h"
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#include "ut0lst.h"
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/** A table lock */
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typedef struct lock_table_struct lock_table_t;
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/** A table lock */
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struct lock_table_struct {
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dict_table_t* table; /*!< database table in dictionary
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cache */
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UT_LIST_NODE_T(lock_t)
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locks; /*!< list of locks on the same
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table */
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};
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/** Record lock for a page */
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typedef struct lock_rec_struct lock_rec_t;
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/** Record lock for a page */
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struct lock_rec_struct {
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ulint space; /*!< space id */
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ulint page_no; /*!< page number */
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ulint n_bits; /*!< number of bits in the lock
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bitmap; NOTE: the lock bitmap is
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placed immediately after the
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lock struct */
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};
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/** Lock struct */
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struct lock_struct {
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trx_t* trx; /*!< transaction owning the
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lock */
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UT_LIST_NODE_T(lock_t)
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trx_locks; /*!< list of the locks of the
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transaction */
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ulint type_mode; /*!< lock type, mode, LOCK_GAP or
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LOCK_REC_NOT_GAP,
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LOCK_INSERT_INTENTION,
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wait flag, ORed */
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hash_node_t hash; /*!< hash chain node for a record
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lock */
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dict_index_t* index; /*!< index for a record lock */
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union {
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lock_table_t tab_lock;/*!< table lock */
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lock_rec_t rec_lock;/*!< record lock */
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} un_member; /*!< lock details */
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};
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/*********************************************************************//**
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Gets the type of a lock.
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@return LOCK_TABLE or LOCK_REC */
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UNIV_INLINE
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ulint
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lock_get_type_low(
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/*==============*/
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const lock_t* lock); /*!< in: lock */
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/*********************************************************************//**
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Gets the previous record lock set on a record.
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@return previous lock on the same record, NULL if none exists */
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UNIV_INTERN
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const lock_t*
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lock_rec_get_prev(
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/*==============*/
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const lock_t* in_lock,/*!< in: record lock */
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ulint heap_no);/*!< in: heap number of the record */
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#ifndef UNIV_NONINL
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#include "lock0priv.ic"
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#endif
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#endif /* lock0priv_h */
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