You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
105 lines
3.3 KiB
105 lines
3.3 KiB
/***************************************************************************
|
|
* Copyright (C) 2005 by Joris Guisson *
|
|
* joris.guisson@gmail.com *
|
|
* *
|
|
* 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., *
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
|
|
***************************************************************************/
|
|
#ifndef DHTNODE_H
|
|
#define DHTNODE_H
|
|
|
|
#include <tqobject.h>
|
|
#include "key.h"
|
|
#include "kbucket.h"
|
|
|
|
|
|
using bt::Uint8;
|
|
|
|
namespace dht
|
|
{
|
|
class DHT;
|
|
class MsgBase;
|
|
class RPCServer;
|
|
class KClosestNodesSearch;
|
|
|
|
/**
|
|
* @author Joris Guisson
|
|
*
|
|
* A Node represents us in the kademlia network. It contains
|
|
* our id and 160 KBucket's.
|
|
* A KBucketEntry is in node i, when the difference between our id and
|
|
* the KBucketEntry's id is between 2 to the power i and 2 to the power i+1.
|
|
*/
|
|
class Node : public TQObject
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
Node(RPCServer* srv,const TQString & key_file);
|
|
virtual ~Node();
|
|
|
|
/**
|
|
* An RPC message was received, the node must now update
|
|
* the right bucket.
|
|
* @param dh_table The DHT
|
|
* @param msg The message
|
|
* @param srv The RPCServer to send a ping if necessary
|
|
*/
|
|
void recieved(DHT* dh_table,const MsgBase* msg);
|
|
|
|
/// Get our own ID
|
|
const dht::Key & getOurID() const {return our_id;}
|
|
|
|
/**
|
|
* Find the K closest entries to a key and store them in the KClosestNodesSearch
|
|
* object.
|
|
* @param kns The object to storre the search results
|
|
*/
|
|
void findKClosestNodes(KClosestNodesSearch & kns);
|
|
|
|
/**
|
|
* Increase the failed queries count of the bucket entry we sent the message to
|
|
*/
|
|
void onTimeout(const MsgBase* msg);
|
|
|
|
/// Check if a buckets needs to be refreshed, and refresh if necesarry
|
|
void refreshBuckets(DHT* dh_table);
|
|
|
|
/// Save the routing table to a file
|
|
void saveTable(const TQString & file);
|
|
|
|
/// Load the routing table from a file
|
|
void loadTable(const TQString & file);
|
|
|
|
/// Get the number of entries in the routing table
|
|
Uint32 getNumEntriesInRoutingTable() const {return num_entries;}
|
|
private:
|
|
Uint8 findBucket(const dht::Key & id);
|
|
|
|
|
|
|
|
private:
|
|
dht::Key our_id;
|
|
KBucket* bucket[160];
|
|
RPCServer* srv;
|
|
Uint32 num_receives;
|
|
Uint32 num_entries;
|
|
bool delete_table;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|