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Diffstat (limited to 'include/my_tracker.h')
| -rw-r--r-- | include/my_tracker.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/my_tracker.h b/include/my_tracker.h new file mode 100644 index 00000000000..88cefe5ef5d --- /dev/null +++ b/include/my_tracker.h @@ -0,0 +1,41 @@ +/* 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 |