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130 lines
3.7 KiB
130 lines
3.7 KiB
15 years ago
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/***************************************************************************
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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 DHTDHTBASE_H
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#define DHTDHTBASE_H
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#include <qobject.h>
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#include <util/constants.h>
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class QString;
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namespace bt
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{
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class SHA1Hash;
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}
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namespace dht
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{
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class AnnounceTask;
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struct Stats
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{
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/// number of peers in the routing table
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bt::Uint32 num_peers;
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/// Number of running tasks
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bt::Uint32 num_tasks;
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};
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/**
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* @author Joris Guisson <joris.guisson@gmail.com>
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*
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* Interface for DHT class, this is to keep other things separate from the inner workings
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* of the DHT.
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*/
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class DHTBase : public QObject
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{
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Q_OBJECT
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public:
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DHTBase();
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virtual ~DHTBase();
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/**
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* Start the DHT
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* @param table File where the save table is located
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* @param key_file The file where the key is stored
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* @param port The port to use
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*/
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virtual void start(const QString & table,const QString & key_file,bt::Uint16 port) = 0;
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/**
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* Stop the DHT
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*/
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virtual void stop() = 0;
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/**
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* Update the DHT
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*/
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virtual void update() = 0;
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/**
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* A Peer has received a PORT message, and uses this function to alert the DHT of it.
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* @param ip The IP of the peer
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* @param port The port in the PORT message
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*/
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virtual void portRecieved(const QString & ip,bt::Uint16 port) = 0;
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/**
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* Do an announce on the DHT network
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* @param info_hash The info_hash
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* @param port The port
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* @return The task which handles this
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*/
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virtual AnnounceTask* announce(const bt::SHA1Hash & info_hash,bt::Uint16 port) = 0;
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/**
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* See if the DHT is running.
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*/
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bool isRunning() const {return running;}
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/// Get the DHT port
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bt::Uint16 getPort() const {return port;}
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/// Get statistics about the DHT
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const dht::Stats & getStats() const {return stats;}
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/**
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* Add a DHT node. This node shall be pinged immediately.
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* @param host The hostname or ip
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* @param hport The port of the host
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*/
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virtual void addDHTNode(const QString & host,bt::Uint16 hport) = 0;
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/**
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* Returns maxNodes number of <IP address, port> nodes
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* that are closest to ourselves and are good.
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* @param maxNodes maximum nr of nodes in QMap to return.
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*/
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virtual QMap<QString, int> getClosestGoodNodes(int maxNodes) = 0;
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signals:
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void started();
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void stopped();
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protected:
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bool running;
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bt::Uint16 port;
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dht::Stats stats;
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};
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}
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#endif
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