src/tests/runtime-test-util.h

/***
  This file is part of PulseAudio.

  PulseAudio is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published
  by the Free Software Foundation; either version 2.1 of the License,
  or (at your option) any later version.

  PulseAudio 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.
***/

#ifndef fooruntimetestutilhfoo
#define fooruntimetestutilhfoo

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <math.h>

#include <pulsecore/macro.h>
#include <pulse/rtclock.h>

#define PA_RUNTIME_TEST_RUN_START(l, t1, t2)                    \
{                                                               \
    int _j, _k;                                                 \
    int _times = (t1), _times2 = (t2);                          \
    pa_usec_t _start, _stop;                                    \
    pa_usec_t _min = INT_MAX, _max = 0;                         \
    double _s1 = 0, _s2 = 0;                                    \
    const char *_label = (l);                                   \
                                                                \
    for (_k = 0; _k < _times2; _k++) {                          \
        _start = pa_rtclock_now();                              \
        for (_j = 0; _j < _times; _j++)

#define PA_RUNTIME_TEST_RUN_STOP                                \
        _stop = pa_rtclock_now();                               \
                                                                \
        if (_min > (_stop - _start)) _min = _stop - _start;     \
        if (_max < (_stop - _start)) _max = _stop - _start;     \
        _s1 += _stop - _start;                                  \
        _s2 += (_stop - _start) * (_stop - _start);             \
    }                                                           \
    pa_log_debug("%s: %llu usec (avg: %g, min = %llu, max = %llu, stddev = %g).", _label, \
            (long long unsigned int)_s1,                        \
            ((double)_s1 / _times2),                            \
            (long long unsigned int)_min,                       \
            (long long unsigned int)_max,                       \
            sqrt(_times2 * _s2 - _s1 * _s1) / _times2);         \
}

#endif