154 lines
5.1 KiB
C++
Executable File
154 lines
5.1 KiB
C++
Executable File
/******************************************************************************\
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* Copyright (c) 2004-2014
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*
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* Author(s):
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* Volker Fischer
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*
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******************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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\******************************************************************************/
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#if !defined ( SOCKET_HOIHGE76GEKJH98_3_4344_BB23945IUHF1912__INCLUDED_ )
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#define SOCKET_HOIHGE76GEKJH98_3_4344_BB23945IUHF1912__INCLUDED_
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#include <QObject>
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#include <QMessageBox>
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#include <QUdpSocket>
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#include <QSocketNotifier>
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#include <QThread>
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#include <QMutex>
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#include <vector>
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#include "global.h"
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#include "channel.h"
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#include "protocol.h"
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#include "util.h"
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// The header file server.h requires to include this header file so we get a
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// cyclic dependency. To solve this issue, a prototype of the server class is
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// defined here.
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class CServer; // forward declaration of CServer
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/* Definitions ****************************************************************/
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// number of ports we try to bind until we give up
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#define NUM_SOCKET_PORTS_TO_TRY 50
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/* Classes ********************************************************************/
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/* Base socket class ---------------------------------------------------------*/
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class CSocket : public QObject
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{
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Q_OBJECT
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public:
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CSocket ( CChannel* pNewChannel,
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const quint16 iPortNumber )
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: pChannel ( pNewChannel ),
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bIsClient ( true ),
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bJitterBufferOK ( true ) { Init ( iPortNumber ); }
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CSocket ( CServer* pNServP,
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const quint16 iPortNumber )
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: pServer ( pNServP ),
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bIsClient ( false ),
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bJitterBufferOK ( true ) { Init ( iPortNumber ); }
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void SendPacket ( const CVector<uint8_t>& vecbySendBuf,
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const CHostAddress& HostAddr );
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bool GetAndResetbJitterBufferOKFlag();
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protected:
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void Init ( const quint16 iPortNumber = LLCON_DEFAULT_PORT_NUMBER );
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QUdpSocket SocketDevice;
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QMutex Mutex;
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CVector<uint8_t> vecbyRecBuf;
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CHostAddress RecHostAddr;
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CChannel* pChannel; // for client
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CServer* pServer; // for server
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bool bIsClient;
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bool bJitterBufferOK;
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public slots:
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void OnDataReceived();
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signals:
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void InvalidPacketReceived ( CVector<uint8_t> vecbyRecBuf,
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int iNumBytesRead,
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CHostAddress RecHostAddr );
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};
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#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
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/* Socket which runs in a separate high priority thread ----------------------*/
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class CHighPrioSocket : public QObject
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{
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Q_OBJECT
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public:
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CHighPrioSocket ( CChannel* pNewChannel,
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const quint16 iPortNumber )
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{
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// we have to register some classes to the Qt signal/slot mechanism
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// since we have thread crossings with the threaded code
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qRegisterMetaType<CVector<uint8_t> > ( "CVector<uint8_t>" );
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qRegisterMetaType<CHostAddress> ( "CHostAddress" );
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// Creation of the new socket thread which has to have the highest
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// possible thread priority to make sure the jitter buffer is reliably
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// filled with the network audio packets and does not get interrupted
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// by other GUI threads. The following code is based on:
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// http://qt-project.org/wiki/Threads_Events_QObjects
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pSocket = new CSocket ( pNewChannel, iPortNumber );
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pSocket->moveToThread ( &NetworkWorkerThread );
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NetworkWorkerThread.start ( QThread::TimeCriticalPriority );
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// connect the "InvalidPacketReceived" signal
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QObject::connect ( pSocket,
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SIGNAL ( InvalidPacketReceived ( CVector<uint8_t>, int, CHostAddress ) ),
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SIGNAL ( InvalidPacketReceived ( CVector<uint8_t>, int, CHostAddress ) ) );
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}
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virtual ~CHighPrioSocket()
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{
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NetworkWorkerThread.exit();
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}
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void SendPacket ( const CVector<uint8_t>& vecbySendBuf,
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const CHostAddress& HostAddr )
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{
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pSocket->SendPacket ( vecbySendBuf, HostAddr );
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}
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protected:
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QThread NetworkWorkerThread;
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CSocket* pSocket;
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signals:
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void InvalidPacketReceived ( CVector<uint8_t> vecbyRecBuf,
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int iNumBytesRead,
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CHostAddress RecHostAddr );
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};
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#endif
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#endif /* !defined ( SOCKET_HOIHGE76GEKJH98_3_4344_BB23945IUHF1912__INCLUDED_ ) */
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