jack2/macosx/JackMachTime.c

/*
Copyright (C) 2001-2003 Paul Davis
Copyright (C) 2004-2008 Grame

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.

*/

#include "JackTime.h"
#include "JackError.h"
#include "JackTypes.h"
#include <mach/mach_time.h>
#include <unistd.h>

static double __jack_time_ratio;

SERVER_EXPORT void JackSleep(long usec) 
{
	usleep(usec);
}

/* This should only be called ONCE per process. */
SERVER_EXPORT void InitTime()
{
	mach_timebase_info_data_t info;
	mach_timebase_info(&info);
	__jack_time_ratio = ((float)info.numer / info.denom) / 1000;
}

SERVER_EXPORT jack_time_t GetMicroSeconds(void) 
{
    return (jack_time_t) (mach_absolute_time () * __jack_time_ratio);
}

SERVER_EXPORT void SetClockSource(jack_timer_type_t source)
{}

SERVER_EXPORT const char* ClockSourceName(jack_timer_type_t source)
{
    return "";
}