EVOLUTION-MANAGER

Edit File: ut0timer.h

/***************************************************************************** Copyright (c) 2013, 2014, Facebook, Inc. All Rights Reserved. Copyright (c) 2014, 2018, MariaDB Corporation. 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 routines 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" /* 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); /**************************************************************//** 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 */ #include "ut0timer.ic" #endif