code.delx.au - pulseaudio/blob - src/tests/runtime-test-util.h

   1 /***
   2   This file is part of PulseAudio.
   3
   4   PulseAudio is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU Lesser General Public License as published
   6   by the Free Software Foundation; either version 2.1 of the License,
   7   or (at your option) any later version.
   8
   9   PulseAudio is distributed in the hope that it will be useful, but
  10   WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12   General Public License for more details.
  13 ***/
  14
  15 #ifndef fooruntimetestutilhfoo
  16 #define fooruntimetestutilhfoo
  17
  18 #ifdef HAVE_CONFIG_H
  19 #include <config.h>
  20 #endif
  21
  22 #include <math.h>
  23
  24 #include <pulsecore/macro.h>
  25 #include <pulse/rtclock.h>
  26
  27 #define PA_RUNTIME_TEST_RUN_START(l, t1, t2)                    \
  28 {                                                               \
  29     int _j, _k;                                                 \
  30     int _times = (t1), _times2 = (t2);                          \
  31     pa_usec_t _start, _stop;                                    \
  32     pa_usec_t _min = INT_MAX, _max = 0;                         \
  33     double _s1 = 0, _s2 = 0;                                    \
  34     const char *_label = (l);                                   \
  35                                                                 \
  36     for (_k = 0; _k < _times2; _k++) {                          \
  37         _start = pa_rtclock_now();                              \
  38         for (_j = 0; _j < _times; _j++)
  39
  40 #define PA_RUNTIME_TEST_RUN_STOP                                \
  41         _stop = pa_rtclock_now();                               \
  42                                                                 \
  43         if (_min > (_stop - _start)) _min = _stop - _start;     \
  44         if (_max < (_stop - _start)) _max = _stop - _start;     \
  45         _s1 += _stop - _start;                                  \
  46         _s2 += (_stop - _start) * (_stop - _start);             \
  47     }                                                           \
  48     pa_log_debug("%s: %llu usec (avg: %g, min = %llu, max = %llu, stddev = %g).", _label, \
  49             (long long unsigned int)_s1,                        \
  50             ((double)_s1 / _times2),                            \
  51             (long long unsigned int)_min,                       \
  52             (long long unsigned int)_max,                       \
  53             sqrt(_times2 * _s2 - _s1 * _s1) / _times2);         \
  54 }
  55
  56 #endif