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#ifndef _KVI_IRCLINK_H_
#define _KVI_IRCLINK_H_
//=============================================================================
//
// File : kvi_irclink.h
// Created on Mon 03 May 2004 01:45:42 by Szymon Stefanek
//
// This file is part of the KVIrc IRC client distribution
// Copyright (C) 2004 Szymon Stefanek <pragma at kvirc dot net>
//
// 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 opinion) 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.
//
//=============================================================================
#include "kvi_settings.h"
#include "kvi_qstring.h"
#include <tqobject.h>
class KviConsole;
class KviIrcServer;
class KviProxy;
class KviIrcSocket;
class KviDns;
class KviIrcConnection;
class KviIrcConnectionTarget;
class KviIrcConnectionTargetResolver;
class KviDataBuffer;
class KviMexLinkFilter;
class KVIRC_API KviIrcLink : public TQObject
{
friend class KviIrcConnection; // upper protocol in the stack
friend class KviIrcSocket; // lower protocol in the stack
Q_OBJECT
TQ_OBJECT
public:
enum State { Idle, Connecting, Connected };
protected:
// only KviConsole can create this
// pConsole must NOT be null
// pServer is a shallow pointer: Connection makes a copy of it internally, must NOT be null
// pProxy may be null if a proxy is not desicred. Connection makes a copy of it internally
KviIrcLink(KviIrcConnection * pConnection);
~KviIrcLink();
private:
KviIrcConnection * m_pConnection; // shallow, never null
KviIrcConnectionTarget * m_pTarget; // shallow, never null
KviConsole * m_pConsole; // shallow, never null
KviIrcSocket * m_pSocket; // owned, may be null!
KviMexLinkFilter * m_pLinkFilter; // owned, may be null!
State m_eState;
char * m_pReadBuffer;
unsigned int m_uReadBufferLen;
unsigned int m_uReadPackets;
KviIrcConnectionTargetResolver * m_pResolver; // owned
public:
// da socket(): may be null!
KviIrcSocket * socket(){ return m_pSocket; };
// da connection: never null
KviIrcConnection * connection(){ return m_pConnection; };
// da console: never null
KviConsole * console(){ return m_pConsole; };
State state(){ return m_eState; };
protected:
//
// interface for KviIrcConnection (up)
//
// This is used by KviIrcConnection::send*()
// This should be used to intercept the outgoing packets
// when implementing a new protocol
virtual bool sendPacket(KviDataBuffer * pData);
// this aborts any connection or attempt
void abort();
protected:
//
// local overridables (called internally)
//
// This is the function used to start a connection attempt.
// It starts the server or proxy DNS lookup
// The function MUST be asynchronous: it must return succesfully
// and report any error by using m_pConnection->linkAttemptFailed()
void start();
protected:
//
// interface for KviIrcSocket (down)
//
// This is called by KviIrcSocket to process a packet
// of raw data from the server. The buffer is iLength+1
// bytes long and contains a null terminator
void processData(char * buffer,int iLength);
// this is called at each state change
void socketStateChange();
protected slots:
void linkFilterDestroyed();
private:
void destroySocket();
void createSocket(const TQString &szLinkFilterName);
signals:
void connectionFailed(); // the connection attempt has failed
private slots:
void resolverTerminated();
};
#endif //!_KVI_IRCLINK_H_
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