/*
* Created on Dec 4, 2004
* Created by Alon Rohter
* 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 com.aelitis.azureus.core.networkmanager.impl.tcp;
import java.io.IOException;
import java.nio.channels.*;
import org.gudy.azureus2.core3.logging.*;
import org.gudy.azureus2.core3.util.*;
import com.aelitis.azureus.core.networkmanager.VirtualChannelSelector;
/**
* Virtual server socket channel for listening and accepting incoming connections.
*/
public class
VirtualAcceptSelector
{
private static final VirtualAcceptSelector singleton = new VirtualAcceptSelector();
public static VirtualAcceptSelector
getSingleton()
{
return( singleton );
}
private static final LogIDs LOGID = LogIDs.NWMAN;
private final VirtualChannelSelector accept_selector =
new VirtualChannelSelector( "Accepter", VirtualChannelSelector.OP_ACCEPT, false );
protected
VirtualAcceptSelector()
{
AEThread select_thread = new AEThread( "Accept Selector" ) {
public void
runSupport()
{
while( true ) {
try{
accept_selector.select( 50 );
}catch( Throwable e ){
Debug.printStackTrace(e);
}
}
}
};
select_thread.setDaemon( true );
select_thread.start();
}
public void
register(
ServerSocketChannel channel,
final AcceptListener listener )
{
accept_selector.register(
channel,
new VirtualChannelSelector.VirtualAcceptSelectorListener()
{
public boolean
selectSuccess(
VirtualChannelSelector selector,
ServerSocketChannel sc,
Object attachment)
{
try{
SocketChannel new_channel = sc.accept();
if ( new_channel == null ){
return( false );
}
new_channel.configureBlocking( false );
listener.newConnectionAccepted( new_channel );
return( true );
}catch( IOException e ){
Debug.printStackTrace(e);
return( true );
}
}
public void
selectFailure(
VirtualChannelSelector selector,
ServerSocketChannel sc,
Object attachment,
Throwable msg )
{
Debug.printStackTrace(msg);
}
},
null );
}
public void
cancel(
ServerSocketChannel channel )
{
accept_selector.cancel( channel );
}
/**
* Listener notified when a new incoming connection is accepted.
*/
public interface
AcceptListener
{
/**
* The given connection has just been accepted.
* @param channel new connection
*/
public void
newConnectionAccepted(
SocketChannel channel );
}
}
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