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1601bdc38a
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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.
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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.
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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.
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r5102 | marko | 2009-05-25 13:47:14 +0300 (Mon, 25 May 2009) | 1 line
branches/zip: Add missing file comments.
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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
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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.
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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.
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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.
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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.
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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.
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r5134 | marko | 2009-05-27 09:08:43 +0300 (Wed, 27 May 2009) | 1 line
branches/zip: Add some Doxygen @return comments.
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r5139 | marko | 2009-05-27 10:01:40 +0300 (Wed, 27 May 2009) | 1 line
branches/zip: Add Doxyfile.
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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.
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112 lines
3.3 KiB
Text
112 lines
3.3 KiB
Text
/*****************************************************************************
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Copyright (c) 1996, 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/trx0rec.ic
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Transaction undo log record
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Created 3/26/1996 Heikki Tuuri
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*******************************************************/
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#ifndef UNIV_HOTBACKUP
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/**********************************************************************//**
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Reads from an undo log record the record type.
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@return record type */
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UNIV_INLINE
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ulint
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trx_undo_rec_get_type(
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/*==================*/
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const trx_undo_rec_t* undo_rec) /*!< in: undo log record */
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{
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return(mach_read_from_1(undo_rec + 2) & (TRX_UNDO_CMPL_INFO_MULT - 1));
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}
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/**********************************************************************//**
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Reads from an undo log record the record compiler info.
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@return compiler info */
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UNIV_INLINE
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ulint
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trx_undo_rec_get_cmpl_info(
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/*=======================*/
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const trx_undo_rec_t* undo_rec) /*!< in: undo log record */
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{
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return(mach_read_from_1(undo_rec + 2) / TRX_UNDO_CMPL_INFO_MULT);
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}
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/**********************************************************************//**
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Returns TRUE if an undo log record contains an extern storage field.
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@return TRUE if extern */
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UNIV_INLINE
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ibool
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trx_undo_rec_get_extern_storage(
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/*============================*/
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const trx_undo_rec_t* undo_rec) /*!< in: undo log record */
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{
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if (mach_read_from_1(undo_rec + 2) & TRX_UNDO_UPD_EXTERN) {
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return(TRUE);
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}
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return(FALSE);
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}
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/**********************************************************************//**
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Reads the undo log record number.
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@return undo no */
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UNIV_INLINE
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undo_no_t
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trx_undo_rec_get_undo_no(
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/*=====================*/
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const trx_undo_rec_t* undo_rec) /*!< in: undo log record */
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{
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const byte* ptr;
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ptr = undo_rec + 3;
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return(mach_dulint_read_much_compressed(ptr));
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}
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/**********************************************************************//**
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Returns the start of the undo record data area.
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@return offset to the data area */
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UNIV_INLINE
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ulint
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trx_undo_rec_get_offset(
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/*====================*/
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undo_no_t undo_no) /*!< in: undo no read from node */
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{
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return (3 + mach_dulint_get_much_compressed_size(undo_no));
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}
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/***********************************************************************//**
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Copies the undo record to the heap.
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@return own: copy of undo log record */
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UNIV_INLINE
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trx_undo_rec_t*
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trx_undo_rec_copy(
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/*==============*/
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trx_undo_rec_t* undo_rec, /*!< in: undo log record */
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mem_heap_t* heap) /*!< in: heap where copied */
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{
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ulint len;
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len = mach_read_from_2(undo_rec)
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- ut_align_offset(undo_rec, UNIV_PAGE_SIZE);
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return(mem_heap_dup(heap, undo_rec, len));
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}
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#endif /* !UNIV_HOTBACKUP */
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