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/*
* 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__ */
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