/*
* Created on 12-Jul-2004
* Created by Paul Gardner
* Copyright (C) 2004, 2005, 2006 Aelitis, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* 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 General Public License for more details.
* You should have received a copy of the GNU 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.
*
* AELITIS, SAS au capital de 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package org.gudy.azureus2.core3.util;
import com.aelitis.azureus.core.util.CopyOnWriteList;
/**
* @author parg
*
*/
public class
SimpleTimer
{
/**
* A simple timer class for use by application components that want to schedule
* low-overhead events (i.e. when fired the event shouldn't take significant processing
* time as there is a limited thread pool to service it
*/
protected static final Timer timer;
private static CopyOnWriteList<TimerTickReceiver> tick_receivers = new CopyOnWriteList<TimerTickReceiver>( true );
static{
timer = new Timer("Simple Timer",32);
timer.setIndestructable();
timer.setWarnWhenFull();
// timer.setLogCPU();
// timer.setLogging(true);
addPeriodicEvent(
"SimpleTimer:ticker",
1000,
new TimerEventPerformer()
{
private int tick_count;
public void
perform(
TimerEvent event )
{
tick_count++;
for ( TimerTickReceiver ttr: tick_receivers ){
try{
ttr.tick( tick_count );
}catch( Throwable e ){
Debug.out( e );
}
}
}
});
}
public static TimerEvent
addEvent(
String name,
long when,
TimerEventPerformer performer )
{
TimerEvent res = timer.addEvent( name, when, performer );
return( res );
}
public static TimerEvent
addEvent(
String name,
long when,
boolean absolute,
TimerEventPerformer performer )
{
TimerEvent res = timer.addEvent( name, when, absolute, performer );
return( res );
}
public static TimerEventPeriodic
addPeriodicEvent(
String name,
long frequency,
TimerEventPerformer performer )
{
TimerEventPeriodic res = timer.addPeriodicEvent( name, frequency, performer );
return( res );
}
public static TimerEventPeriodic
addPeriodicEvent(
String name,
long frequency,
boolean absolute,
TimerEventPerformer performer )
{
TimerEventPeriodic res = timer.addPeriodicEvent( name, frequency, absolute, performer );
return( res );
}
public static void
addTickReceiver(
TimerTickReceiver receiver )
{
tick_receivers.add( receiver );
}
public static void
removeTickReceiver(
TimerTickReceiver receiver )
{
tick_receivers.remove( receiver );
}
public interface
TimerTickReceiver
{
public void
tick(
int tick_ount );
}
}