/usr/include/jack/statistics.h is in libjack-dev 1:0.125.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | /*
* Copyright (C) 2004 Rui Nuno Capela, Lee Revell
*
* This program 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.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
*/
#ifndef __statistics_h__
#define __statistics_h__
#ifdef __cplusplus
extern "C" {
#endif
#include <jack/types.h>
/**
* @return the maximum delay reported by the backend since
* startup or reset. When compared to the period size in usecs, this
* can be used to estimate the ideal period size for a given setup.
*/
float jack_get_max_delayed_usecs (jack_client_t *client);
/**
* @return the delay in microseconds due to the most recent XRUN
* occurrence. This probably only makes sense when called from a @ref
* JackXRunCallback defined using jack_set_xrun_callback().
*/
float jack_get_xrun_delayed_usecs (jack_client_t *client);
/**
* Reset the maximum delay counter. This would be useful
* to estimate the effect that a change to the configuration of a running
* system (e.g. toggling kernel preemption) has on the delay
* experienced by JACK, without having to restart the JACK engine.
*/
void jack_reset_max_delayed_usecs (jack_client_t *client);
#ifdef __cplusplus
}
#endif
#endif /* __statistics_h__ */
|