277 lines
13 KiB
C++
Executable File
277 lines
13 KiB
C++
Executable File
/******************************************************************************\
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* Copyright (c) 2004-2011
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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 ( PROTOCOL_H__3B123453_4344_BB2392354455IUHF1912__INCLUDED_ )
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#define PROTOCOL_H__3B123453_4344_BB2392354455IUHF1912__INCLUDED_
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#include <QMutex>
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#include <QTimer>
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#include <QDateTime>
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#include <list>
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#include "global.h"
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#include "util.h"
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/* Definitions ****************************************************************/
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// protocol message IDs
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#define PROTMESSID_ILLEGAL 0 // illegal ID
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#define PROTMESSID_ACKN 1 // acknowledge
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#define PROTMESSID_JITT_BUF_SIZE 10 // jitter buffer size
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#define PROTMESSID_REQ_JITT_BUF_SIZE 11 // request jitter buffer size
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#define PROTMESSID_NET_BLSI_FACTOR 12 // OLD (not used anymore)
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#define PROTMESSID_CHANNEL_GAIN 13 // set channel gain for mix
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#define PROTMESSID_CONN_CLIENTS_LIST 14 // connected client list
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#define PROTMESSID_SERVER_FULL 15 // OLD (not used anymore)
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#define PROTMESSID_REQ_CONN_CLIENTS_LIST 16 // request connected client list
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#define PROTMESSID_CHANNEL_NAME 17 // set channel name for fader tag
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#define PROTMESSID_CHAT_TEXT 18 // contains a chat text
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#define PROTMESSID_PING_MS 19 // for measuring ping time
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#define PROTMESSID_NETW_TRANSPORT_PROPS 20 // properties for network transport
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#define PROTMESSID_REQ_NETW_TRANSPORT_PROPS 21 // request properties for network transport
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#define PROTMESSID_DISCONNECTION 22 // OLD (not used anymore)
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#define PROTMESSID_REQ_CHANNEL_NAME 23 // request channel name for fader tag
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// message IDs of connection less messages (CLM)
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// DEFINITION -> start at 1000, end at 1999, see IsConnectionLessMessageID
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#define PROTMESSID_CLM_PING_MS 1001 // for measuring ping time
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#define PROTMESSID_CLM_PING_MS_WITHNUMCLIENTS 1002 // for ping time and num. of clients info
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#define PROTMESSID_CLM_SERVER_FULL 1003 // server full message
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#define PROTMESSID_CLM_REGISTER_SERVER 1004 // register server
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#define PROTMESSID_CLM_UNREGISTER_SERVER 1005 // unregister server
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#define PROTMESSID_CLM_SERVER_LIST 1006 // server list
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#define PROTMESSID_CLM_REQ_SERVER_LIST 1007 // request server list
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#define PROTMESSID_CLM_SEND_EMPTY_MESSAGE 1008 // an empty message shall be send
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#define PROTMESSID_CLM_EMPTY_MESSAGE 1009 // empty message
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#define PROTMESSID_CLM_DISCONNECTION 1010 // disconnection
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// lengths of message as defined in protocol.cpp file
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#define MESS_HEADER_LENGTH_BYTE 7 // TAG (2), ID (2), cnt (1), length (2)
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#define MESS_LEN_WITHOUT_DATA_BYTE ( MESS_HEADER_LENGTH_BYTE + 2 /* CRC (2) */ )
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// time out for message re-send if no acknowledgement was received
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#define SEND_MESS_TIMEOUT_MS 400 // ms
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/* Classes ********************************************************************/
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class CProtocol : public QObject
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{
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Q_OBJECT
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public:
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CProtocol();
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void Reset();
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void CreateJitBufMes ( const int iJitBufSize );
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void CreateReqJitBufMes();
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void CreateChanGainMes ( const int iChanID, const double dGain );
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void CreateConClientListMes ( const CVector<CChannelShortInfo>& vecChanInfo );
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void CreateReqConnClientsList();
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void CreateChanNameMes ( const QString strName );
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void CreateReqChanNameMes();
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void CreateChatTextMes ( const QString strChatText );
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void CreatePingMes ( const int iMs );
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void CreateNetwTranspPropsMes ( const CNetworkTransportProps& NetTrProps );
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void CreateReqNetwTranspPropsMes();
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void CreateCLPingMes ( const CHostAddress& InetAddr, const int iMs );
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void CreateCLPingWithNumClientsMes ( const CHostAddress& InetAddr,
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const int iMs,
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const int iNumClients );
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void CreateCLServerFullMes ( const CHostAddress& InetAddr );
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void CreateCLRegisterServerMes ( const CHostAddress& InetAddr,
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const CServerCoreInfo& ServerInfo );
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void CreateCLUnregisterServerMes ( const CHostAddress& InetAddr );
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void CreateCLServerListMes ( const CHostAddress& InetAddr,
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const CVector<CServerInfo> vecServerInfo );
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void CreateCLReqServerListMes ( const CHostAddress& InetAddr );
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void CreateCLSendEmptyMesMes ( const CHostAddress& InetAddr,
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const CHostAddress& TargetInetAddr );
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void CreateCLEmptyMes ( const CHostAddress& InetAddr );
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void CreateCLDisconnection ( const CHostAddress& InetAddr );
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bool ParseMessage ( const CVector<uint8_t>& vecbyData,
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const int iNumBytes );
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bool ParseConnectionLessMessage ( const CVector<uint8_t>& vecbyData,
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const int iNumBytes,
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const CHostAddress& InetAddr );
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bool IsProtocolMessage ( const CVector<uint8_t>& vecbyData,
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const int iNumBytes );
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// this function is public because we need it in the test bench
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void CreateAndImmSendAcknMess ( const int& iID,
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const int& iCnt );
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protected:
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class CSendMessage
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{
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public:
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CSendMessage() : vecMessage ( 0 ), iID ( PROTMESSID_ILLEGAL ),
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iCnt ( 0 ) {}
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CSendMessage ( const CVector<uint8_t>& nMess, const int iNCnt,
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const int iNID ) : vecMessage ( nMess ), iID ( iNID ),
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iCnt ( iNCnt ) {}
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CSendMessage& operator= ( const CSendMessage& NewSendMess )
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{
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vecMessage.Init ( NewSendMess.vecMessage.Size() );
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vecMessage = NewSendMess.vecMessage;
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iID = NewSendMess.iID;
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iCnt = NewSendMess.iCnt;
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return *this;
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}
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CVector<uint8_t> vecMessage;
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int iID, iCnt;
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};
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void EnqueueMessage ( CVector<uint8_t>& vecMessage,
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const int iCnt,
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const int iID );
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bool ParseMessageFrame ( const CVector<uint8_t>& vecIn,
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const int iNumBytesIn,
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int& iCnt,
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int& iID,
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CVector<uint8_t>& vecData );
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void GenMessageFrame ( CVector<uint8_t>& vecOut,
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const int iCnt,
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const int iID,
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const CVector<uint8_t>& vecData );
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void PutValOnStream ( CVector<uint8_t>& vecIn,
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int& iPos,
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const uint32_t iVal,
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const int iNumOfBytes );
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void PutStringOnStream ( CVector<uint8_t>& vecIn,
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int& iPos,
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const QString& sString );
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uint32_t GetValFromStream ( const CVector<uint8_t>& vecIn,
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int& iPos,
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const int iNumOfBytes );
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bool GetStringFromStream ( const CVector<uint8_t>& vecIn,
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int& iPos,
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const int iMaxStringLen,
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QString& strOut );
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bool IsConnectionLessMessageID ( const int iID ) const
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{ return (iID >= 1000) & (iID < 2000); }
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void SendMessage();
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void CreateAndSendMessage ( const int iID,
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const CVector<uint8_t>& vecData );
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void CreateAndImmSendConLessMessage ( const int iID,
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const CVector<uint8_t>& vecData,
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const CHostAddress& InetAddr );
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bool EvaluateJitBufMes ( const CVector<uint8_t>& vecData );
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bool EvaluateReqJitBufMes();
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bool EvaluateChanGainMes ( const CVector<uint8_t>& vecData );
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bool EvaluateConClientListMes ( const CVector<uint8_t>& vecData );
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bool EvaluateReqConnClientsList();
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bool EvaluateChanNameMes ( const CVector<uint8_t>& vecData );
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bool EvaluateReqChanNameMes();
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bool EvaluateChatTextMes ( const CVector<uint8_t>& vecData );
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bool EvaluatePingMes ( const CVector<uint8_t>& vecData );
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bool EvaluateNetwTranspPropsMes ( const CVector<uint8_t>& vecData );
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bool EvaluateReqNetwTranspPropsMes();
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bool EvaluateCLPingMes ( const CHostAddress& InetAddr,
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const CVector<uint8_t>& vecData );
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bool EvaluateCLPingWithNumClientsMes ( const CHostAddress& InetAddr,
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const CVector<uint8_t>& vecData );
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bool EvaluateCLServerFullMes();
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bool EvaluateCLRegisterServerMes ( const CHostAddress& InetAddr,
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const CVector<uint8_t>& vecData );
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bool EvaluateCLUnregisterServerMes ( const CHostAddress& InetAddr );
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bool EvaluateCLServerListMes ( const CHostAddress& InetAddr,
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const CVector<uint8_t>& vecData );
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bool EvaluateCLReqServerListMes ( const CHostAddress& InetAddr );
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bool EvaluateCLSendEmptyMesMes ( const CVector<uint8_t>& vecData );
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bool EvaluateCLDisconnectionMes ( const CHostAddress& InetAddr );
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int iOldRecID;
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int iOldRecCnt;
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// these two objects must be sequred by a mutex
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uint8_t iCounter;
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std::list<CSendMessage> SendMessQueue;
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QTimer TimerSendMess;
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QMutex Mutex;
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public slots:
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void OnTimerSendMess() { SendMessage(); }
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signals:
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// transmitting
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void MessReadyForSending ( CVector<uint8_t> vecMessage );
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void CLMessReadyForSending ( CHostAddress InetAddr,
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CVector<uint8_t> vecMessage );
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// receiving
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void ChangeJittBufSize ( int iNewJitBufSize );
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void ReqJittBufSize();
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void ChangeNetwBlSiFact ( int iNewNetwBlSiFact );
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void ChangeChanGain ( int iChanID, double dNewGain );
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void ConClientListMesReceived ( CVector<CChannelShortInfo> vecChanInfo );
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void ServerFullMesReceived();
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void ReqConnClientsList();
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void ChangeChanName ( QString strName );
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void ReqChanName();
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void ChatTextReceived ( QString strChatText );
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void PingReceived ( int iMs );
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void NetTranspPropsReceived ( CNetworkTransportProps NetworkTransportProps );
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void ReqNetTranspProps();
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void CLPingReceived ( CHostAddress InetAddr,
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int iMs );
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void CLPingWithNumClientsReceived ( CHostAddress InetAddr,
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int iMs,
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int iNumClients );
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void CLRegisterServerReceived ( CHostAddress InetAddr,
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CServerCoreInfo ServerInfo );
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void CLUnregisterServerReceived ( CHostAddress InetAddr );
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void CLServerListReceived ( CHostAddress InetAddr,
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CVector<CServerInfo> vecServerInfo );
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void CLReqServerList ( CHostAddress InetAddr );
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void CLSendEmptyMes ( CHostAddress TargetInetAddr );
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void CLDisconnection ( CHostAddress InetAddr );
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void DetectedCLMessage ( CVector<uint8_t> vecbyData,
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int iNumBytes );
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};
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#endif /* !defined ( PROTOCOL_H__3B123453_4344_BB2392354455IUHF1912__INCLUDED_ ) */
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