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finished implementation of a separate socket high priority thread

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This commit is contained in:
Volker Fischer 2014-02-16 08:12:07 +00:00
parent bde026b06b
commit 2e5f7781ce
7 changed files with 314 additions and 446 deletions
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3
ChangeLog
View file

@ -5,6 +5,9 @@
- store fader solo state
- improved stability of the audio stream by reducing audio drop outs (by
using a separate socket thread)
- bug fix: the fader level could not be changed if fader was on solo
3.3.3

3
Jamulus.pro
View file

@ -36,7 +36,8 @@ win32 {
LIBS += ole32.lib \
user32.lib \
advapi32.lib \
winmm.lib
winmm.lib \
ws2_32.lib
} else:macx {
HEADERS += mac/sound.h
SOURCES += mac/sound.cpp

200
src/channel.cpp
View file

@ -109,14 +109,6 @@ QObject::connect ( &Protocol,
QObject::connect ( &Protocol,
SIGNAL ( ReqNetTranspProps() ),
this, SLOT ( OnReqNetTranspProps() ) );
// this connection is intended for a thread transition if we have a
// separate socket thread running
#ifndef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
QObject::connect ( this,
SIGNAL ( ParseMessageBody ( CVector<uint8_t>, int, int ) ),
this, SLOT ( OnParseMessageBody ( CVector<uint8_t>, int, int ) ) );
#endif
}
bool CChannel::ProtocolIsEnabled()
@ -447,147 +439,82 @@ void CChannel::Disconnect()
}
}
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
EPutDataStat CChannel::PutData ( const CVector<uint8_t>& vecbyData,
const int iNumBytes,
CSocket* pSocket )
#else
EPutDataStat CChannel::PutData ( const CVector<uint8_t>& vecbyData,
const int iNumBytes )
#endif
void CChannel::PutProtcolData ( const int iRecCounter,
const int iRecID,
const CVector<uint8_t>& vecbyMesBodyData,
const CHostAddress& RecHostAddr )
{
/*
Note that this function might be called from a different thread (separate
Socket thread) and therefore we should not call functions which emit signals
themself directly but emit a signal here so that the thread transition is
done as early as possible.
This is the reason why "ParseMessageBody" is not called directly but through a
signal-slot mechanism.
*/
// Only process protocol message if:
// - for client only: the packet comes from the server we want to talk to
// - the channel is enabled
// - the protocol mechanism is enabled
if ( ( bIsServer || ( GetAddress() == RecHostAddr ) ) &&
IsEnabled() &&
ProtocolIsEnabled() )
{
// parse the message assuming this is a regular protocol message
Protocol.ParseMessageBody ( vecbyMesBodyData, iRecCounter, iRecID );
}
}
EPutDataStat CChannel::PutAudioData ( const CVector<uint8_t>& vecbyData,
const int iNumBytes,
CHostAddress RecHostAddr )
{
// init return state
EPutDataStat eRet = PS_GEN_ERROR;
if ( bIsEnabled )
// Only process audio data if:
// - for client only: the packet comes from the server we want to talk to
// - the channel is enabled
if ( ( bIsServer || ( GetAddress() == RecHostAddr ) ) &&
IsEnabled() )
{
int iRecCounter;
int iRecID;
CVector<uint8_t> vecbyMesBodyData;
// init flag
bool bNewConnection = false;
// check if this is a protocol message by trying to parse the message
// frame
if ( !Protocol.ParseMessageFrame ( vecbyData,
iNumBytes,
vecbyMesBodyData,
iRecCounter,
iRecID ) )
MutexSocketBuf.lock();
{
// This is a protocol message:
// only use protocol data if protocol mechanism is enabled
if ( ProtocolIsEnabled() )
// only process audio if packet has correct size
if ( iNumBytes == ( iNetwFrameSize * iNetwFrameSizeFact ) )
{
// in case this is a connection less message, we do not process it here
if ( Protocol.IsConnectionLessMessageID ( iRecID ) )
// store new packet in jitter buffer
if ( SockBuf.Put ( vecbyData, iNumBytes ) )
{
// fire a signal so that an other class can process this type of
// message
// TODO a copy of the vector is used -> avoid malloc in real-time routine
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
pSocket->EmitDetectedCLMessage ( vecbyMesBodyData, iRecID );
#else
emit DetectedCLMessage ( vecbyMesBodyData, iRecID );
#endif
// set status flag
eRet = PS_PROT_OK;
eRet = PS_AUDIO_OK;
}
else
{
// parse the message assuming this is a regular protocol message
// TODO a copy of the vector is used -> avoid malloc in real-time routine
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
pSocket->EmitParseMessageBody ( vecbyMesBodyData, iRecCounter, iRecID );
#else
emit ParseMessageBody ( vecbyMesBodyData, iRecCounter, iRecID );
#endif
// note that protocol OK is not correct here since we do not
// check if the protocol was ok since we emit just a signal
// and do not get any feedback on the protocol decoding state
eRet = PS_PROT_OK;
eRet = PS_AUDIO_ERR;
}
}
else
{
// In case we are the server and the current channel is not
// connected, we do not evaluate protocol messages but these
// messages could start the server which is not desired,
// especially not for the disconnect messages.
// We now do not start the server if a valid protocol message
// was received but only start the server on audio packets.
// set status flag
eRet = PS_PROT_OK_MESS_NOT_EVALUATED;
// the protocol parsing failed and this was no audio block,
// we treat this as protocol error (unkown packet)
eRet = PS_PROT_ERR;
}
}
else
{
// This seems to be an audio packet (only try to parse audio if it
// was not a protocol packet):
MutexSocketBuf.lock();
// All network packets except of valid protocol messages
// regardless if they are valid or invalid audio packets lead to
// a state change to a connected channel.
// This is because protocol messages can only be sent on a
// connected channel and the client has to inform the server
// about the audio packet properties via the protocol.
// check if channel was not connected, this is a new connection
if ( !IsConnected() )
{
// only process audio if packet has correct size
if ( iNumBytes == ( iNetwFrameSize * iNetwFrameSizeFact ) )
{
// store new packet in jitter buffer
if ( SockBuf.Put ( vecbyData, iNumBytes ) )
{
eRet = PS_AUDIO_OK;
}
else
{
eRet = PS_AUDIO_ERR;
}
}
else
{
// the protocol parsing failed and this was no audio block,
// we treat this as protocol error (unkown packet)
eRet = PS_PROT_ERR;
}
// All network packets except of valid protocol messages
// regardless if they are valid or invalid audio packets lead to
// a state change to a connected channel.
// This is because protocol messages can only be sent on a
// connected channel and the client has to inform the server
// about the audio packet properties via the protocol.
// check if channel was not connected, this is a new connection
// (do not fire an event directly since we are inside a mutex
// region -> to avoid a dead-lock)
bNewConnection = !IsConnected();
// reset time-out counter
ResetTimeOutCounter();
// overwrite status
eRet = PS_NEW_CONNECTION;
}
MutexSocketBuf.unlock();
}
if ( bNewConnection )
{
// inform other objects that new connection was established
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
pSocket->EmitNewConnection();
#else
emit NewConnection();
#endif
// reset time-out counter (note that this must be done after the
// "IsConnected()" query above)
ResetTimeOutCounter();
}
MutexSocketBuf.unlock();
}
else
{
eRet = PS_AUDIO_INVALID;
}
return eRet;
@ -657,24 +584,7 @@ EGetDataStat CChannel::GetData ( CVector<uint8_t>& vecbyData,
return eGetStatus;
}
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
void CChannel::PrepAndSendPacketHPS ( CHighPrioSocket* pSocket,
const CVector<uint8_t>& vecbyNPacket,
const int iNPacketLen )
{
// TODO Doubled code!!! Same code as in PrepAndSendPacket (see below)!!!
QMutexLocker locker ( &MutexConvBuf );
// use conversion buffer to convert sound card block size in network
// block size
if ( ConvBuf.Put ( vecbyNPacket, iNPacketLen ) )
{
pSocket->SendPacket ( ConvBuf.Get(), GetAddress() );
}
}
#endif
void CChannel::PrepAndSendPacket ( CSocket* pSocket,
void CChannel::PrepAndSendPacket ( CHighPrioSocket* pSocket,
const CVector<uint8_t>& vecbyNPacket,
const int iNPacketLen )
{

59
src/channel.h
View file

@ -47,9 +47,11 @@ enum EPutDataStat
PS_GEN_ERROR,
PS_AUDIO_OK,
PS_AUDIO_ERR,
PS_AUDIO_INVALID,
PS_PROT_OK,
PS_PROT_OK_MESS_NOT_EVALUATED,
PS_PROT_ERR
PS_PROT_ERR,
PS_NEW_CONNECTION
};
@ -63,28 +65,22 @@ public:
// use constructor initialization in the server for a vector of channels
CChannel ( const bool bNIsServer = true );
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
EPutDataStat PutData ( const CVector<uint8_t>& vecbyData,
const int iNumBytes,
CSocket* pSocket = 0 ); // TODO remove the "= 0"!
#else
EPutDataStat PutData ( const CVector<uint8_t>& vecbyData,
const int iNumBytes );
#endif
void PutProtcolData ( const int iRecCounter,
const int iRecID,
const CVector<uint8_t>& vecbyMesBodyData,
const CHostAddress& RecHostAddr );
EPutDataStat PutAudioData ( const CVector<uint8_t>& vecbyData,
const int iNumBytes,
CHostAddress RecHostAddr );
EGetDataStat GetData ( CVector<uint8_t>& vecbyData,
const int iNumBytes );
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
void PrepAndSendPacketHPS ( CHighPrioSocket* pSocket,
const CVector<uint8_t>& vecbyNPacket,
const int iNPacketLen );
#endif
void PrepAndSendPacket ( CSocket* pSocket,
void PrepAndSendPacket ( CHighPrioSocket* pSocket,
const CVector<uint8_t>& vecbyNPacket,
const int iNPacketLen );
void ResetTimeOutCounter() { iConTimeOut = iConTimeOutStartVal; }
bool IsConnected() const { return iConTimeOut > 0; }
void Disconnect();
@ -235,18 +231,22 @@ public slots:
Protocol.ParseMessageBody ( vecbyMesBodyData, iRecCounter, iRecID );
}
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
void OnDetectedCLMessage ( CVector<uint8_t> vecbyMesBodyData,
int iRecID )
{
emit DetectedCLMessage ( vecbyMesBodyData, iRecID );
}
void OnProtcolMessageReceived ( int iRecCounter,
int iRecID,
CVector<uint8_t> vecbyMesBodyData,
CHostAddress RecHostAddr )
{
PutProtcolData ( iRecCounter, iRecID, vecbyMesBodyData, RecHostAddr );
}
void OnNewConnection()
{
emit NewConnection();
}
#endif
void OnProtcolCLMessageReceived ( int iRecID,
CVector<uint8_t> vecbyMesBodyData,
CHostAddress RecHostAddr )
{
emit DetectedCLMessage ( vecbyMesBodyData, iRecID, RecHostAddr );
}
void OnNewConnection() { emit NewConnection(); }
signals:
void MessReadyForSending ( CVector<uint8_t> vecMessage );
@ -265,7 +265,8 @@ signals:
void Disconnected();
void DetectedCLMessage ( CVector<uint8_t> vecbyMesBodyData,
int iRecID );
int iRecID,
CHostAddress RecHostAddr );
void ParseMessageBody ( CVector<uint8_t> vecbyMesBodyData,
int iRecCounter,

76
src/server.h
View file

@ -130,9 +130,10 @@ public:
void Stop();
bool IsRunning() { return HighPrecisionTimer.isActive(); }
bool PutData ( const CVector<uint8_t>& vecbyRecBuf,
const int iNumBytesRead,
const CHostAddress& HostAdr );
bool PutAudioData ( const CVector<uint8_t>& vecbyRecBuf,
const int iNumBytesRead,
const CHostAddress& HostAdr,
int& iCurChanID );
void GetConCliParam ( CVector<CHostAddress>& vecHostAddresses,
CVector<QString>& vecsName,
@ -242,7 +243,7 @@ protected:
CVector<uint8_t> vecbyCodedData;
// actual working objects
CSocket Socket;
CHighPrioSocket Socket;
// logging
CServerLogging Logging;
@ -269,13 +270,26 @@ signals:
public slots:
void OnTimer();
void OnSendProtMessage ( int iChID, CVector<uint8_t> vecMessage );
void OnNewConnection ( int iChID );
void OnSendCLProtMessage ( CHostAddress InetAddr, CVector<uint8_t> vecMessage );
void OnDetCLMess ( const CVector<uint8_t>& vecbyMesBodyData,
const int iRecID,
const CHostAddress& InetAddr );
void OnSendProtMessage ( int iChID,
CVector<uint8_t> vecMessage );
void OnNewConnection ( int iChID,
CHostAddress RecHostAddr );
void OnServerFull ( CHostAddress RecHostAddr );
void OnSendCLProtMessage ( CHostAddress InetAddr,
CVector<uint8_t> vecMessage );
void OnProtcolCLMessageReceived ( int iRecID,
CVector<uint8_t> vecbyMesBodyData,
CHostAddress RecHostAddr );
void OnProtcolMessageReceived ( int iRecCounter,
int iRecID,
CVector<uint8_t> vecbyMesBodyData,
CHostAddress RecHostAddr );
void OnCLPingReceived ( CHostAddress InetAddr, int iMs )
{ ConnLessProtocol.CreateCLPingMes ( InetAddr, iMs ); }
@ -341,48 +355,6 @@ public slots:
void OnSendProtMessCh18 ( CVector<uint8_t> mess ) { OnSendProtMessage ( 18, mess ); }
void OnSendProtMessCh19 ( CVector<uint8_t> mess ) { OnSendProtMessage ( 19, mess ); }
void OnDetCLMessCh0 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[0].GetAddress() ); }
void OnDetCLMessCh1 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[1].GetAddress() ); }
void OnDetCLMessCh2 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[2].GetAddress() ); }
void OnDetCLMessCh3 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[3].GetAddress() ); }
void OnDetCLMessCh4 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[4].GetAddress() ); }
void OnDetCLMessCh5 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[5].GetAddress() ); }
void OnDetCLMessCh6 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[6].GetAddress() ); }
void OnDetCLMessCh7 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[7].GetAddress() ); }
void OnDetCLMessCh8 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[8].GetAddress() ); }
void OnDetCLMessCh9 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[9].GetAddress() ); }
void OnDetCLMessCh10 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[10].GetAddress() ); }
void OnDetCLMessCh11 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[11].GetAddress() ); }
void OnDetCLMessCh12 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[12].GetAddress() ); }
void OnDetCLMessCh13 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[13].GetAddress() ); }
void OnDetCLMessCh14 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[14].GetAddress() ); }
void OnDetCLMessCh15 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[15].GetAddress() ); }
void OnDetCLMessCh16 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[16].GetAddress() ); }
void OnDetCLMessCh17 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[17].GetAddress() ); }
void OnDetCLMessCh18 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[18].GetAddress() ); }
void OnDetCLMessCh19 ( CVector<uint8_t> vData, int iID ) { OnDetCLMess ( vData, iID, vecChannels[19].GetAddress() ); }
void OnNewConnectionCh0() { OnNewConnection ( 0 ); }
void OnNewConnectionCh1() { OnNewConnection ( 1 ); }
void OnNewConnectionCh2() { OnNewConnection ( 2 ); }
void OnNewConnectionCh3() { OnNewConnection ( 3 ); }
void OnNewConnectionCh4() { OnNewConnection ( 4 ); }
void OnNewConnectionCh5() { OnNewConnection ( 5 ); }
void OnNewConnectionCh6() { OnNewConnection ( 6 ); }
void OnNewConnectionCh7() { OnNewConnection ( 7 ); }
void OnNewConnectionCh8() { OnNewConnection ( 8 ); }
void OnNewConnectionCh9() { OnNewConnection ( 9 ); }
void OnNewConnectionCh10() { OnNewConnection ( 10 ); }
void OnNewConnectionCh11() { OnNewConnection ( 11 ); }
void OnNewConnectionCh12() { OnNewConnection ( 12 ); }
void OnNewConnectionCh13() { OnNewConnection ( 13 ); }
void OnNewConnectionCh14() { OnNewConnection ( 14 ); }
void OnNewConnectionCh15() { OnNewConnection ( 15 ); }
void OnNewConnectionCh16() { OnNewConnection ( 16 ); }
void OnNewConnectionCh17() { OnNewConnection ( 17 ); }
void OnNewConnectionCh18() { OnNewConnection ( 18 ); }
void OnNewConnectionCh19() { OnNewConnection ( 19 ); }
void OnReqConnClientsListCh0() { CreateAndSendChanListForThisChan ( 0 ); }
void OnReqConnClientsListCh1() { CreateAndSendChanListForThisChan ( 1 ); }
void OnReqConnClientsListCh2() { CreateAndSendChanListForThisChan ( 2 ); }

297
src/socket.cpp
View file

@ -29,20 +29,26 @@
/* Implementation *************************************************************/
void CSocket::Init ( const quint16 iPortNumber )
{
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
# ifdef _WIN32
#ifdef _WIN32
// for the Windows socket usage we have to start it up first
// TODO check for error and exit application on error
WSADATA wsa;
WSAStartup ( MAKEWORD(1, 0), &wsa ); // TODO check for error and exit application on error
# endif
WSAStartup ( MAKEWORD(1, 0), &wsa );
#endif
// create the UDP socket
UdpSocket = socket ( AF_INET, SOCK_DGRAM, 0 );
#endif
// allocate memory for network receive and send buffer in samples
vecbyRecBuf.Init ( MAX_SIZE_BYTES_NETW_BUF );
// preinitialize socket in address (only the port number is missing)
sockaddr_in UdpSocketInAddr;
UdpSocketInAddr.sin_family = AF_INET;
UdpSocketInAddr.sin_addr.s_addr = INADDR_ANY;
// initialize the listening socket
bool bSuccess;
@ -55,12 +61,6 @@ void CSocket::Init ( const quint16 iPortNumber )
quint16 iClientPortIncrement = 10; // start value: port nubmer plus ten
bSuccess = false; // initialization for while loop
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
// preinitialize socket in address (only the port number is missing)
sockaddr_in UdpSocketInAddr;
UdpSocketInAddr.sin_family = AF_INET;
UdpSocketInAddr.sin_addr.s_addr = INADDR_ANY;
while ( !bSuccess &&
( iClientPortIncrement <= NUM_SOCKET_PORTS_TO_TRY ) )
{
@ -72,25 +72,17 @@ void CSocket::Init ( const quint16 iPortNumber )
iClientPortIncrement++;
}
#else
while ( !bSuccess &&
( iClientPortIncrement <= NUM_SOCKET_PORTS_TO_TRY ) )
{
bSuccess = SocketDevice.bind (
QHostAddress ( QHostAddress::Any ),
iPortNumber + iClientPortIncrement );
iClientPortIncrement++;
}
#endif
}
else
{
// for the server, only try the given port number and do not try out
// other port numbers to bind since it is imporatant that the server
// gets the desired port number
bSuccess = SocketDevice.bind (
QHostAddress ( QHostAddress::Any ), iPortNumber );
UdpSocketInAddr.sin_port = htons ( iPortNumber );
bSuccess = ( bind ( UdpSocket ,
(sockaddr*) &UdpSocketInAddr,
sizeof ( sockaddr_in ) ) == 0 );
}
if ( !bSuccess )
@ -100,67 +92,66 @@ void CSocket::Init ( const quint16 iPortNumber )
"the software is already running).", "Network Error" );
}
// connect the "activated" signal
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
// Connections -------------------------------------------------------------
// it is important to do the following connections in this class since we
// have a thread transition
// we have different connections for client and server
if ( bIsClient )
{
// TEST We do a test where we call "waitForReadyRead" instead of even driven method.
/*
// We have to use a blocked queued connection since in case we use a
// separate socket thread, the "readyRead" signal would occur and our
// "OnDataReceived" function would be run in another thread. This could
// lead to a situation that a new "readRead" occurs while the processing
// of the previous signal was not finished -> the error: "Multiple
// socket notifiers for same socket" may occur.
QObject::connect ( &SocketDevice, SIGNAL ( readyRead() ),
this, SLOT ( OnDataReceived() ), Qt::BlockingQueuedConnection );
*/
// client connections:
QObject::connect ( this,
SIGNAL ( ProtcolMessageReceived ( int, int, CVector<uint8_t>, CHostAddress ) ),
pChannel, SLOT ( OnProtcolMessageReceived ( int, int, CVector<uint8_t>, CHostAddress ) ) );
// TEST
QObject::connect ( this,
SIGNAL ( ParseMessageBody ( CVector<uint8_t>, int, int ) ),
pChannel, SLOT ( OnParseMessageBody ( CVector<uint8_t>, int, int ) ) );
QObject::connect ( this,
SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ),
pChannel, SLOT ( OnDetectedCLMessage ( CVector<uint8_t>, int ) ) );
QObject::connect ( this,
SIGNAL ( NewConnection ( CVector<uint8_t>, int ) ),
pChannel, SLOT ( OnNewConnection ( CVector<uint8_t>, int ) ) );
QObject::connect ( this,
SIGNAL ( ProtcolCLMessageReceived ( int, CVector<uint8_t>, CHostAddress ) ),
pChannel, SLOT ( OnProtcolCLMessageReceived ( int, CVector<uint8_t>, CHostAddress ) ) );
QObject::connect ( this,
SIGNAL ( NewConnection() ),
pChannel, SLOT ( OnNewConnection() ) );
}
else
{
// the server does not use a separate socket thread right now, in that
// case we must not use the blocking queued connection, otherwise we
// would get a dead lock
QObject::connect ( &SocketDevice, SIGNAL ( readyRead() ),
this, SLOT ( OnDataReceived() ) );
// server connections:
QObject::connect ( this,
SIGNAL ( ProtcolMessageReceived ( int, int, CVector<uint8_t>, CHostAddress ) ),
pServer, SLOT ( OnProtcolMessageReceived ( int, int, CVector<uint8_t>, CHostAddress ) ) );
QObject::connect ( this,
SIGNAL ( ProtcolCLMessageReceived ( int, CVector<uint8_t>, CHostAddress ) ),
pServer, SLOT ( OnProtcolCLMessageReceived ( int, CVector<uint8_t>, CHostAddress ) ) );
QObject::connect ( this,
SIGNAL ( NewConnection ( int, CHostAddress ) ),
pServer, SLOT ( OnNewConnection ( int, CHostAddress ) ) );
QObject::connect ( this,
SIGNAL ( ServerFull ( CHostAddress ) ),
pServer, SLOT ( OnServerFull ( CHostAddress ) ) );
}
#else
QObject::connect ( &SocketDevice, SIGNAL ( readyRead() ),
this, SLOT ( OnDataReceived() ) );
#endif
}
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
void CSocket::Close()
{
// closesocket will cause recvfrom to return with an error because the
// socket is closed -> then the thread can safely be shut down
#ifdef _WIN32
closesocket ( UdpSocket );
}
#else
close ( UdpSocket );
#endif
}
CSocket::~CSocket()
{
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
# ifdef _WIN32
#ifdef _WIN32
// the Windows socket must be cleanup on shutdown
WSACleanup();
# endif
#endif
}
@ -177,34 +168,18 @@ void CSocket::SendPacket ( const CVector<uint8_t>& vecbySendBuf,
// char vector in "const char*", for this we first convert the const
// uint8_t vector in a read/write uint8_t vector and then do the cast to
// const char*)
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
// note that the client uses the socket directly for performance reasons
if ( bIsClient )
{
sockaddr_in UdpSocketOutAddr;
sockaddr_in UdpSocketOutAddr;
UdpSocketOutAddr.sin_family = AF_INET;
UdpSocketOutAddr.sin_port = htons ( HostAddr.iPort );
UdpSocketOutAddr.sin_addr.s_addr = htonl ( HostAddr.InetAddr.toIPv4Address() );
UdpSocketOutAddr.sin_family = AF_INET;
UdpSocketOutAddr.sin_port = htons ( HostAddr.iPort );
UdpSocketOutAddr.sin_addr.s_addr = htonl ( HostAddr.InetAddr.toIPv4Address() );
sendto ( UdpSocket,
(const char*) &( (CVector<uint8_t>) vecbySendBuf )[0],
iVecSizeOut,
0,
(sockaddr*) &UdpSocketOutAddr,
sizeof ( sockaddr_in ) );
}
else
{
#endif
SocketDevice.writeDatagram (
(const char*) &( (CVector<uint8_t>) vecbySendBuf )[0],
iVecSizeOut,
HostAddr.InetAddr,
HostAddr.iPort );
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
}
#endif
sendto ( UdpSocket,
(const char*) &( (CVector<uint8_t>) vecbySendBuf )[0],
iVecSizeOut,
0,
(sockaddr*) &UdpSocketOutAddr,
sizeof ( sockaddr_in ) );
}
}
@ -225,88 +200,107 @@ bool CSocket::GetAndResetbJitterBufferOKFlag()
void CSocket::OnDataReceived()
{
#ifndef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
while ( SocketDevice.hasPendingDatagrams() )
#endif
{
// read block from network interface and query address of sender
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
sockaddr_in SenderAddr;
/*
The strategy of this function is that only the "put audio" function is
called directly (i.e. the high thread priority is used) and all other less
important things like protocol parsing and acting on protocol messages is
done in the low priority thread. To get a thread transition, we have to
use the signal/slot mechanism (i.e. we use messages for that).
*/
// read block from network interface and query address of sender
sockaddr_in SenderAddr;
#ifdef _WIN32
int SenderAddrSize = sizeof ( sockaddr_in );
int SenderAddrSize = sizeof ( sockaddr_in );
#else
socklen_t SenderAddrSize = sizeof ( sockaddr_in );
socklen_t SenderAddrSize = sizeof ( sockaddr_in );
#endif
const long iNumBytesRead = recvfrom ( UdpSocket,
(char*) &vecbyRecBuf[0],
MAX_SIZE_BYTES_NETW_BUF,
0,
(sockaddr*) &SenderAddr,
&SenderAddrSize );
#else
const int iNumBytesRead =
SocketDevice.readDatagram ( (char*) &vecbyRecBuf[0],
MAX_SIZE_BYTES_NETW_BUF,
&SenderAddress,
&SenderPort );
#endif
const long iNumBytesRead = recvfrom ( UdpSocket,
(char*) &vecbyRecBuf[0],
MAX_SIZE_BYTES_NETW_BUF,
0,
(sockaddr*) &SenderAddr,
&SenderAddrSize );
// check if an error occurred or no data could be read
if ( iNumBytesRead <= 0 )
// check if an error occurred or no data could be read
if ( iNumBytesRead <= 0 )
{
return;
}
// convert address of client
RecHostAddr.InetAddr.setAddress ( ntohl ( SenderAddr.sin_addr.s_addr ) );
RecHostAddr.iPort = ntohs ( SenderAddr.sin_port );
// check if this is a protocol message
int iRecCounter;
int iRecID;
CVector<uint8_t> vecbyMesBodyData;
if ( !CProtocol::ParseMessageFrame ( vecbyRecBuf,
iNumBytesRead,
vecbyMesBodyData,
iRecCounter,
iRecID ) )
{
// this is a protocol message, check the type of the message
if ( CProtocol::IsConnectionLessMessageID ( iRecID ) )
{
return;
// TODO a copy of the vector is used -> avoid malloc in real-time routine
emit ProtcolCLMessageReceived ( iRecID, vecbyMesBodyData, RecHostAddr );
}
else
{
// convert address of client
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
RecHostAddr.InetAddr.setAddress ( ntohl ( SenderAddr.sin_addr.s_addr ) );
RecHostAddr.iPort = ntohs ( SenderAddr.sin_port );
#else
RecHostAddr.InetAddr = SenderAddress;
RecHostAddr.iPort = SenderPort;
#endif
// TODO a copy of the vector is used -> avoid malloc in real-time routine
emit ProtcolMessageReceived ( iRecCounter, iRecID, vecbyMesBodyData, RecHostAddr );
}
}
else
{
// this is most probably a regular audio packet
if ( bIsClient )
{
// client:
// check if packet comes from the server we want to connect and that
// the channel is enabled
if ( ( pChannel->GetAddress() == RecHostAddr ) &&
pChannel->IsEnabled() )
switch ( pChannel->PutAudioData ( vecbyRecBuf, iNumBytesRead, RecHostAddr ) )
{
// this network packet is valid, put it in the channel
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
switch ( pChannel->PutData ( vecbyRecBuf, iNumBytesRead, this ) )
#else
switch ( pChannel->PutData ( vecbyRecBuf, iNumBytesRead ) )
#endif
{
case PS_AUDIO_ERR:
case PS_GEN_ERROR:
bJitterBufferOK = false;
break;
case PS_AUDIO_ERR:
case PS_GEN_ERROR:
bJitterBufferOK = false;
break;
default:
// do nothing
break;
}
}
else
{
case PS_NEW_CONNECTION:
// inform other objects that new connection was established
emit NewConnection();
break;
case PS_AUDIO_INVALID:
// inform about received invalid packet by fireing an event
emit InvalidPacketReceived ( vecbyRecBuf,
iNumBytesRead,
RecHostAddr );
emit InvalidPacketReceived ( RecHostAddr );
break;
default:
// do nothing
break;
}
}
else
{
// server:
if ( pServer->PutData ( vecbyRecBuf, iNumBytesRead, RecHostAddr ) )
int iCurChanID;
if ( pServer->PutAudioData ( vecbyRecBuf, iNumBytesRead, RecHostAddr, iCurChanID ) )
{
// we have a new connection, emit a signal
emit NewConnection ( iCurChanID, RecHostAddr );
// this was an audio packet, start server if it is in sleep mode
if ( !pServer->IsRunning() )
{
@ -315,6 +309,13 @@ void CSocket::OnDataReceived()
new CCustomEvent ( MS_PACKET_RECEIVED, 0, 0 ) );
}
}
// check if no channel is available
if ( iCurChanID == INVALID_CHANNEL_ID )
{
// fire message for the state that no free channel is available
emit ServerFull ( RecHostAddr );
}
}
}
}

122
src/socket.h
View file

@ -27,21 +27,18 @@
#include <QObject>
#include <QMessageBox>
#include <QUdpSocket>
#include <QSocketNotifier>
#include <QThread>
#include <QMutex>
#include <vector>
#include "global.h"
#include "protocol.h"
#include "util.h"
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
# ifndef _WIN32
# include <netinet/in.h>
# include <sys/socket.h>
# endif
#ifndef _WIN32
# include <netinet/in.h>
# include <sys/socket.h>
#endif
// The header files channel.h and server.h require to include this header file
// so we get a cyclic dependency. To solve this issue, a prototype of the
// channel class and server class is defined here.
@ -55,7 +52,7 @@ class CChannel; // forward declaration of CChannel
/* Classes ********************************************************************/
/* Base socket class ---------------------------------------------------------*/
/* Base socket class -------------------------------------------------------- */
class CSocket : public QObject
{
Q_OBJECT
@ -79,40 +76,16 @@ public:
const CHostAddress& HostAddr );
bool GetAndResetbJitterBufferOKFlag();
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
void Close();
void EmitDetectedCLMessage ( const CVector<uint8_t>& vecbyMesBodyData,
const int iRecID )
{
emit DetectedCLMessage ( vecbyMesBodyData, iRecID );
}
void EmitParseMessageBody ( const CVector<uint8_t>& vecbyMesBodyData,
const int iRecCounter,
const int iRecID )
{
emit ParseMessageBody ( vecbyMesBodyData, iRecCounter, iRecID );
}
void EmitNewConnection()
{
emit NewConnection();
}
#endif
protected:
void Init ( const quint16 iPortNumber = LLCON_DEFAULT_PORT_NUMBER );
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
# ifdef _WIN32
#ifdef _WIN32
SOCKET UdpSocket;
# else
#else
int UdpSocket;
# endif
#endif
QUdpSocket SocketDevice;
QMutex Mutex;
@ -132,55 +105,56 @@ public slots:
void OnDataReceived();
signals:
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
void DetectedCLMessage ( CVector<uint8_t> vecbyMesBodyData,
int iRecID );
void NewConnection(); // for the client
void ParseMessageBody ( CVector<uint8_t> vecbyMesBodyData,
int iRecCounter,
int iRecID );
void NewConnection ( int iChID,
CHostAddress RecHostAddr ); // for the server
void NewConnection();
#endif
void InvalidPacketReceived ( CVector<uint8_t> vecbyRecBuf,
int iNumBytesRead,
CHostAddress RecHostAddr );
void ServerFull ( CHostAddress RecHostAddr );
void InvalidPacketReceived ( CHostAddress RecHostAddr );
void ProtcolMessageReceived ( int iRecCounter,
int iRecID,
CVector<uint8_t> vecbyMesBodyData,
CHostAddress HostAdr );
void ProtcolCLMessageReceived ( int iRecID,
CVector<uint8_t> vecbyMesBodyData,
CHostAddress HostAdr );
};
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
/* Socket which runs in a separate high priority thread ----------------------*/
/* Socket which runs in a separate high priority thread --------------------- */
// The receive socket should be put in a high priority thread to ensure the GUI
// does not effect the stability of the audio stream (e.g. if the GUI is on
// high load because of a table update, the incoming network packets must still
// be put in the jitter buffer with highest priority).
class CHighPrioSocket : public QObject
{
Q_OBJECT
public:
CHighPrioSocket ( CChannel* pNewChannel,
const quint16 iPortNumber ) :
Socket ( pNewChannel, iPortNumber )
{
// Creation of the new socket thread which has to have the highest
// possible thread priority to make sure the jitter buffer is reliably
// filled with the network audio packets and does not get interrupted
// by other GUI threads. The following code is based on:
// http://qt-project.org/wiki/Threads_Events_QObjects
Socket.moveToThread ( &NetworkWorkerThread );
const quint16 iPortNumber )
: Socket ( pNewChannel, iPortNumber ) { Init(); }
NetworkWorkerThread.SetSocket ( &Socket );
NetworkWorkerThread.start ( QThread::TimeCriticalPriority );
// connect the "InvalidPacketReceived" signal
QObject::connect ( &Socket,
SIGNAL ( InvalidPacketReceived ( CVector<uint8_t>, int, CHostAddress ) ),
SIGNAL ( InvalidPacketReceived ( CVector<uint8_t>, int, CHostAddress ) ) );
}
CHighPrioSocket ( CServer* pNewServer,
const quint16 iPortNumber )
: Socket ( pNewServer, iPortNumber ) { Init(); }
virtual ~CHighPrioSocket()
{
NetworkWorkerThread.exit();
}
void Start()
{
// starts the high priority socket receive thread (with using blocking
// socket request call)
NetworkWorkerThread.start ( QThread::TimeCriticalPriority );
}
void SendPacket ( const CVector<uint8_t>& vecbySendBuf,
const CHostAddress& HostAddr )
{
@ -232,14 +206,20 @@ protected:
bool bRun;
};
void Init()
{
// Creation of the new socket thread which has to have the highest
// possible thread priority to make sure the jitter buffer is reliably
// filled with the network audio packets and does not get interrupted
// by other GUI threads. The following code is based on:
// http://qt-project.org/wiki/Threads_Events_QObjects
Socket.moveToThread ( &NetworkWorkerThread );
NetworkWorkerThread.SetSocket ( &Socket );
}
CSocketThread NetworkWorkerThread;
CSocket Socket;
signals:
void InvalidPacketReceived ( CVector<uint8_t> vecbyRecBuf,
int iNumBytesRead,
CHostAddress RecHostAddr );
};
#endif
#endif /* !defined ( SOCKET_HOIHGE76GEKJH98_3_4344_BB23945IUHF1912__INCLUDED_ ) */