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MDEV-5834: Merge Kakao Defragmentation implementation to MariaDB 10.1

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Merge https://github.com/kakao/mariadb-10.0 that contains Facebook's
    implementation for defragmentation

    facebook/mysql-5.6@a2d3a74
    facebook/mysql-5.6@def96c8
    facebook/mysql-5.6@9c67c5d
    facebook/mysql-5.6@921a81b
    facebook/mysql-5.6@aa519bd
    facebook/mysql-5.6@fea7d13
    facebook/mysql-5.6@09b29d3
    facebook/mysql-5.6@9284abb
    facebook/mysql-5.6@dbd623d
    facebook/mysql-5.6@aed55dc
    facebook/mysql-5.6@aad5c82

    This version does not add new SQL-syntax and new handler API function.
    Instead optimize table is mapped to defragment table if
    innodb_defragment=ON, by default the feature is off.

    Contains changes authored by Sunguck Lee (Kakao).
This commit is contained in:
Jan Lindström 2014-08-06 15:28:58 +03:00
commit 6dad23f04a
91 changed files with 5772 additions and 168 deletions
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104
storage/innobase/include/ut0timer.h Normal file
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/*****************************************************************************
Copyright (c) 2013, 2014, Facebook, Inc. All Rights Reserved.
Copyright (c) 2014, SkySQL Ab. All Rights Reserved.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
*****************************************************************************/
/********************************************************************//**
@file include/ut0timer.h
Timer rountines
Created 30/07/2014 Jan Lindström jan.lindstrom@skysql.com
modified from https://github.com/facebook/mysql-5.6/commit/c75a413edeb96eb99bf11d7269bdfea06f96d6b6
*************************************************************************/
#ifndef ut0timer_h
#define ut0timer_h
#include "univ.i"
#include "data0type.h"
#include <my_rdtsc.h>
/* Current timer stats */
extern struct my_timer_unit_info ut_timer;
/**************************************************************//**
Function pointer to point selected timer function.
@return timer current value */
extern ulonglong (*ut_timer_now)(void);
/**************************************************************//**
Sets up the data required for use of my_timer_* functions.
Selects the best timer by high frequency, and tight resolution.
Points my_timer_now() to the selected timer function.
Initializes my_timer struct to contain the info for selected timer.*/
UNIV_INTERN
void ut_init_timer(void);
/**************************************************************//**
Return time passed since time then, automatically adjusted
for the estimated timer overhead.
@return time passed since "then" */
UNIV_INLINE
ulonglong
ut_timer_since(
/*===========*/
ulonglong then); /*!< in: time where to calculate */
/**************************************************************//**
Get time passed since "then", and update then to now
@return time passed sinche "then" */
UNIV_INLINE
ulonglong
ut_timer_since_and_update(
/*======================*/
ulonglong *then); /*!< in: time where to calculate */
/**************************************************************//**
Convert native timer units in a ulonglong into seconds in a double
@return time in a seconds */
UNIV_INLINE
double
ut_timer_to_seconds(
/*=================*/
ulonglong when); /*!< in: time where to calculate */
/**************************************************************//**
Convert native timer units in a ulonglong into milliseconds in a double
@return time in milliseconds */
UNIV_INLINE
double
ut_timer_to_milliseconds(
/*=====================*/
ulonglong when); /*!< in: time where to calculate */
/**************************************************************//**
Convert native timer units in a ulonglong into microseconds in a double
@return time in microseconds */
UNIV_INLINE
double
ut_timer_to_microseconds(
/*=====================*/
ulonglong when); /*!< in: time where to calculate */
/**************************************************************//**
Convert microseconds in a double to native timer units in a ulonglong
@return time in microseconds */
UNIV_INLINE
ulonglong
ut_microseconds_to_timer(
/*=====================*/
ulonglong when); /*!< in: time where to calculate */
#ifndef UNIV_NONINL
#include "ut0timer.ic"
#endif
#endif