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/***************************************************************************
* 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 DHTRPCSERVER_H
#define DHTRPCSERVER_H
#include <tqptrlist.h>
#include <kdatagramsocket.h>
#include <util/constants.h>
#include <util/array.h>
#include <util/ptrmap.h>
using KNetwork::KDatagramSocket;
using bt::Uint32;
using bt::Uint16;
using bt::Uint8;
namespace bt
{
class BDictNode;
}
namespace dht
{
class Key;
class KBucketEntry;
class RPCCall;
class RPCMsg;
class Node;
class DHT;
class MsgBase;
/**
* @author Joris Guisson
*
* Class to handle incoming and outgoing RPC messages.
*/
class RPCServer : public TQObject
{
Q_OBJECT
TQ_OBJECT
public:
RPCServer(DHT* dh_table,Uint16 port,TQObject *tqparent = 0);
virtual ~RPCServer();
/// Start the server
void start();
/// Stop the server
void stop();
/**
* Do a RPC call.
* @param msg The message to send
* @return The call object
*/
RPCCall* doCall(MsgBase* msg);
/**
* Send a message, this only sends the message, it does not keep any call
* information. This should be used for replies.
* @param msg The message to send
*/
void sendMsg(MsgBase* msg);
/**
* A call was timed out.
* @param mtid mtid of call
*/
void timedOut(Uint8 mtid);
/**
* Ping a node, we don't care about the MTID.
* @param addr The address
*/
void ping(const dht::Key & our_id,const KNetwork::KSocketAddress & addr);
/**
* Find a RPC call, based on the mtid
* @param mtid The mtid
* @return The call
*/
const RPCCall* findCall(Uint8 mtid) const;
/// Get the number of active calls
Uint32 getNumActiveRPCCalls() const {return calls.count();}
private slots:
void readPacket();
private:
void send(const KNetwork::KSocketAddress & addr,const TQByteArray & msg);
void doQueuedCalls();
private:
KDatagramSocket* sock;
DHT* dh_table;
bt::PtrMap<bt::Uint8,RPCCall> calls;
TQPtrList<RPCCall> call_queue;
bt::Uint8 next_mtid;
bt::Uint16 port;
};
}
#endif
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