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/* Copyright (c) 2022, 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 St, Fifth Floor, Boston, MA 02110-1335 USA */
/*
Trivial framework to add a tracker to a C function
*/
#include "my_rdtsc.h"
struct my_time_tracker
{
ulonglong counter;
ulonglong cycles;
};
#ifdef HAVE_TIME_TRACKING
#define START_TRACKING ulonglong my_start_time= my_timer_cycles()
#define END_TRACKING(var) \
{ \
ulonglong my_end_time= my_timer_cycles(); \
(var)->counter++; \
(var)->cycles+= (unlikely(my_end_time < my_start_time) ? \
my_end_time - my_start_time + ULONGLONG_MAX : \
my_end_time - my_start_time); \
}
#else
#define START_TRACKING
#define END_TRACKING(var) do { } while(0)
#endif