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42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
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/* Copyright (c) 2022, MariaDB Corporation.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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/*
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Trivial framework to add a tracker to a C function
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*/
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#include "my_rdtsc.h"
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struct my_time_tracker
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{
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ulonglong counter;
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ulonglong cycles;
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};
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#ifdef HAVE_TIME_TRACKING
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#define START_TRACKING ulonglong my_start_time= my_timer_cycles()
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#define END_TRACKING(var) \
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{ \
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ulonglong my_end_time= my_timer_cycles(); \
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(var)->counter++; \
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(var)->cycles+= (unlikely(my_end_time < my_start_time) ? \
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my_end_time - my_start_time + ULONGLONG_MAX : \
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my_end_time - my_start_time); \
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}
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#else
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#define START_TRACKING
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#define END_TRACKING(var) do { } while(0)
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#endif
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