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253 lines
6.6 KiB
253 lines
6.6 KiB
/***************************************************************************
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* Copyright (C) 2005 by Joris Guisson *
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* joris.guisson@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#ifndef BTPEERMANAGER_H
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#define BTPEERMANAGER_H
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#include <map>
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#include <tqobject.h>
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#include <tqptrlist.h>
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#include <util/ptrmap.h>
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#include "globals.h"
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#include "peerid.h"
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#include <util/bitset.h>
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#include <interfaces/peersource.h>
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namespace mse
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{
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class StreamSocket;
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}
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namespace bt
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{
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class Peer;
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class ChunkManager;
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class Torrent;
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class Authenticate;
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class ChunkCounter;
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const Uint32 MAX_SIMULTANIOUS_AUTHS = 20;
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/**
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* @author Joris Guisson
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* @brief Manages all the Peers
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*
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* This class manages all Peer objects.
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* It can also open connections to other peers.
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*/
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class PeerManager : public TQObject
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{
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Q_OBJECT
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public:
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/**
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* Constructor.
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* @param tor The Torrent
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*/
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PeerManager(Torrent & tor);
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virtual ~PeerManager();
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/**
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* Check for new connections, update down and upload speed of each Peer.
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* Initiate new connections.
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*/
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void update();
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/**
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* Remove dead peers.
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* @return The number of dead ones removed
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*/
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Uint32 clearDeadPeers();
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/**
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* Get the i'th Peer.
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* @param index
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* @return Peer or 0 if out of range
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*/
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Peer* getPeer(Uint32 index) {return peer_list.at(index);}
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/**
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* Find a Peer based on it's ID
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* @param peer_id The ID
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* @return A Peer or 0, if nothing could be found
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*/
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Peer* findPeer(Uint32 peer_id);
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/**
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* Try to connect to some peers
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*/
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void connectToPeers();
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/**
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* Close all Peer connections.
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*/
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void closeAllConnections();
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/**
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* Start listening to incoming requests.
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*/
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void start();
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/**
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* Stop listening to incoming requests.
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*/
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void stop();
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/**
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* Kill all peers who have been choked longer then @a older_then time.
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* @param older_then Time in milliseconds
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*/
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void killChokedPeers(Uint32 older_then);
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Uint32 getNumConnectedPeers() const {return peer_list.count();}
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Uint32 getNumPending() const {return num_pending;}
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static void setMaxConnections(Uint32 max);
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static Uint32 getMaxConnections() {return max_connections;}
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static void setMaxTotalConnections(Uint32 max);
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static Uint32 getMaxTotalConnections() {return max_total_connections;}
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static Uint32 getTotalConnections() {return total_connections;}
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/// Is the peer manager started
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bool isStarted() const {return started;}
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/// Get the Torrent
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Torrent & getTorrent() {return tor;}
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/**
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* A new connection is ready for this PeerManager.
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* @param sock The socket
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* @param peer_id The Peer's ID
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* @param support What extensions the peer supports
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*/
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void newConnection(mse::StreamSocket* sock,const PeerID & peer_id,Uint32 support);
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/**
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* Add a potential peer
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* @param pp The PotentialPeer
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*/
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void addPotentialPeer(const kt::PotentialPeer & pp);
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/**
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* Kills all connections to seeders.
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* This is used when torrent download gets finished
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* and we should drop all connections to seeders
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*/
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void killSeeders();
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/**
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* Kills all peers that are not interested for a long time.
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* This should be used when torrent is seeding ONLY.
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*/
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void killUninterested();
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/// Get a BitSet of all available chunks
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const BitSet & getAvailableChunksBitSet() const {return available_chunks;}
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/// Get the chunk counter.
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ChunkCounter & getChunkCounter() {return *cnt;};
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/// Are we connected to a Peer given it's PeerID ?
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bool connectedTo(const PeerID & peer_id);
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/**
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* A peer has authenticated.
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* @param auth The Authenticate object
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* @param ok Wether or not the attempt was succesfull
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*/
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void peerAuthenticated(Authenticate* auth,bool ok);
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/**
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* Save the IP's and port numbers of all peers.
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*/
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void savePeerList(const TQString & file);
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/**
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* Load the peer list again and add them to the potential peers
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*/
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void loadPeerList(const TQString & file);
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typedef TQPtrList<Peer>::const_iterator CItr;
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CItr beginPeerList() const {return peer_list.begin();}
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CItr endPeerList() const {return peer_list.end();}
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/// Is PEX eanbled
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bool isPexEnabled() const {return pex_on;}
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/// Enable or disable PEX
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void setPexEnabled(bool on);
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/// Set the group IDs of each peer
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void setGroupIDs(Uint32 up,Uint32 down);
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public slots:
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/**
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* A PeerSource, has new potential peers.
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* @param ps The PeerSource
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*/
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void peerSourceReady(kt::PeerSource* ps);
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private:
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void updateAvailableChunks();
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bool killBadPeer();
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void createPeer(mse::StreamSocket* sock,const PeerID & peer_id,Uint32 support,bool local);
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bool connectedTo(const TQString & ip,Uint16 port) const;
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private slots:
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void onHave(Peer* p,Uint32 index);
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void onBitSetRecieved(const BitSet & bs);
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void onRerunChoker();
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void pex(const TQByteArray & arr);
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signals:
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void newPeer(Peer* p);
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void peerKilled(Peer* p);
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void stopped();
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private:
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PtrMap<Uint32,Peer> peer_map;
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TQPtrList<Peer> peer_list;
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TQPtrList<Peer> killed;
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Torrent & tor;
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bool started;
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BitSet available_chunks;
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ChunkCounter* cnt;
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Uint32 num_pending;
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bool pex_on;
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static Uint32 max_connections;
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static Uint32 max_total_connections;
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static Uint32 total_connections;
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std::multimap<TQString,kt::PotentialPeer> potential_peers;
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typedef std::multimap<TQString,kt::PotentialPeer>::iterator PPItr;
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};
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}
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#endif
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