/*
* Created on Feb 25, 2005
* Created by Alon Rohter
* Copyright (C) 2004-2005 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.peer;
import com.aelitis.azureus.core.peermanager.piecepicker.util.BitFlags;
/**
* Listener for peer events.
*/
public interface PEPeerListener {
/**
* The peer has changed to the given state.
* @param peer the peer the message is about
* @param new_state of peer
*/
public void stateChanged(PEPeer peer, int new_state );
/**
* The peer has sent us a bad piece data chunk.
* @param peer the peer the message is about
* @param piece_num piece that failed hash check
* @param total_bad_chunks total number of bad chunks sent by this peer so far
*/
public void sentBadChunk(PEPeer peer, int piece_num, int total_bad_chunks );
/** The peer asserts that their availability should be added to the torrent-global availability pool
* The peer must send when, and only when, their availability is known
* but not after going to CLOSING state. Upon sending this message, the peer must remember it was
* sent, and then later send a corresponding removeAvailability message
* @param peer the message is about
* @param peerHavePieces BitFlags of pieces availabile
*/
public void addAvailability(final PEPeer peer, final BitFlags peerHavePieces);
/** The peer asserts that their availability must now be taken from the torrent-global availability pool
* The peer must send this only after having sent a corresponding addAvailability message,
* and must not send it in a state prior to CLOSING state. The BitFlags must be complete, with all
* pieces from any Bitfield message as well as those from any Have messages.
* @param peer the message is about
* @param peerHavePieces BitFlags of pieces no longer available
*/
public void removeAvailability(final PEPeer peer, final BitFlags peerHavePieces);
}