RemoteSourceThread Class Reference

#include <remotesourcethread.h>

Inherits QThread.

Collaboration diagram for RemoteSourceThread:

Classes
class	MsgDataBind
class	MsgStartStop

Public Member Functions
	RemoteSourceThread (RemoteDataQueue *dataQueue, QObject *parent=0)
	~RemoteSourceThread ()
void	startStop (bool start)
void	dataBind (const QString &address, uint16_t port)

Private Slots
void	handleInputMessages ()
void	readPendingDatagrams ()

Private Member Functions
void	startWork ()
void	stopWork ()
void	run ()

Private Attributes
QMutex	m_startWaitMutex
QWaitCondition	m_startWaiter
volatile bool	m_running
MessageQueue	m_inputMessageQueue
RemoteDataQueue *	m_dataQueue
QHostAddress	m_address
QUdpSocket *	m_socket
RemoteDataBlock *	m_dataBlocks [m_nbDataBlocks]
	ring buffer of data blocks indexed by frame affinity More...

Static Private Attributes
static const uint32_t	m_nbDataBlocks = 4
	number of data blocks in the ring buffer More...

Detailed Description

Definition at line 33 of file remotesourcethread.h.

Constructor & Destructor Documentation

RemoteSourceThread()

RemoteSourceThread::RemoteSourceThread	(	RemoteDataQueue *	dataQueue,
		QObject *	parent = 0
	)

Definition at line 32 of file remotesourcethread.cpp.

Referenced by RemoteSourceThread::MsgDataBind::MsgDataBind().

                                                                                  :
    QThread(parent),
    m_running(false),
    m_dataQueue(dataQueue),
    m_address(QHostAddress::LocalHost),
    m_socket(0)
{
    std::fill(m_dataBlocks, m_dataBlocks+4, (RemoteDataBlock *) 0);
    connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
}

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~RemoteSourceThread()

RemoteSourceThread::~RemoteSourceThread

(

)

Definition at line 43 of file remotesourcethread.cpp.

Referenced by RemoteSourceThread::MsgDataBind::MsgDataBind().

{
    qDebug("RemoteSourceThread::~RemoteSourceThread");
}

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Member Function Documentation

dataBind()

void RemoteSourceThread::dataBind	(	const QString &	address,
		uint16_t	port
	)

Definition at line 54 of file remotesourcethread.cpp.

References RemoteSourceThread::MsgDataBind::create(), m_inputMessageQueue, and MessageQueue::push().

Referenced by RemoteSource::applySettings(), RemoteSourceThread::MsgDataBind::MsgDataBind(), and RemoteSource::start().

{
    MsgDataBind *msg = MsgDataBind::create(address, port);
    m_inputMessageQueue.push(msg);
}

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handleInputMessages

void RemoteSourceThread::handleInputMessages ( )

privateslot

Definition at line 96 of file remotesourcethread.cpp.

References RemoteSourceThread::MsgDataBind::getAddress(), RemoteSourceThread::MsgDataBind::getPort(), RemoteSourceThread::MsgStartStop::getStartStop(), m_inputMessageQueue, m_socket, Message::match(), MessageQueue::pop(), readPendingDatagrams(), startWork(), and stopWork().

{
    Message* message;

    while ((message = m_inputMessageQueue.pop()) != 0)
    {
        if (MsgStartStop::match(*message))
        {
            MsgStartStop* notif = (MsgStartStop*) message;
            qDebug("RemoteSourceThread::handleInputMessages: MsgStartStop: %s", notif->getStartStop() ? "start" : "stop");

            if (notif->getStartStop()) {
                startWork();
            } else {
                stopWork();
            }

            delete message;
        }
        else if (MsgDataBind::match(*message))
        {
            MsgDataBind* notif = (MsgDataBind*) message;
            qDebug("RemoteSourceThread::handleInputMessages: MsgDataBind: %s:%d", qPrintable(notif->getAddress().toString()), notif->getPort());

            if (m_socket)
            {
                disconnect(m_socket, SIGNAL(readyRead()), this, SLOT(readPendingDatagrams()));
                m_socket->bind(notif->getAddress(), notif->getPort());
                connect(m_socket, SIGNAL(readyRead()), this, SLOT(readPendingDatagrams()));
            }
        }
    }
}

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readPendingDatagrams

void RemoteSourceThread::readPendingDatagrams ( )

privateslot

Definition at line 130 of file remotesourcethread.cpp.

References m_dataBlocks, m_dataQueue, RemoteRxControlBlock::m_frameIndex, RemoteRxControlBlock::m_metaRetrieved, m_nbDataBlocks, RemoteDataBlock::m_rxControlBlock, m_socket, RemoteDataBlock::m_superBlocks, and RemoteDataQueue::push().

Referenced by handleInputMessages().

{
    RemoteSuperBlock superBlock;
    qint64 size;

    while (m_socket->hasPendingDatagrams())
    {
        QHostAddress sender;
        quint16 senderPort = 0;
        //qint64 pendingDataSize = m_socket->pendingDatagramSize();
        size = m_socket->readDatagram((char *) &superBlock, (long long int) sizeof(RemoteSuperBlock), &sender, &senderPort);

        if (size == sizeof(RemoteSuperBlock))
        {
            unsigned int dataBlockIndex = superBlock.m_header.m_frameIndex % m_nbDataBlocks;

            // create the first block for this index
            if (m_dataBlocks[dataBlockIndex] == 0) {
                m_dataBlocks[dataBlockIndex] = new RemoteDataBlock();
            }

            if (m_dataBlocks[dataBlockIndex]->m_rxControlBlock.m_frameIndex < 0)
            {
                // initialize virgin block with the frame index
                m_dataBlocks[dataBlockIndex]->m_rxControlBlock.m_frameIndex = superBlock.m_header.m_frameIndex;
            }
            else
            {
                // if the frame index is not the same for the same slot it means we are starting a new frame
                uint32_t frameIndex = m_dataBlocks[dataBlockIndex]->m_rxControlBlock.m_frameIndex;

                if (superBlock.m_header.m_frameIndex != frameIndex)
                {
                    //qDebug("RemoteSourceThread::readPendingDatagrams: push frame %u", frameIndex);
                    m_dataQueue->push(m_dataBlocks[dataBlockIndex]);
                    m_dataBlocks[dataBlockIndex] = new RemoteDataBlock();
                    m_dataBlocks[dataBlockIndex]->m_rxControlBlock.m_frameIndex = superBlock.m_header.m_frameIndex;
                }
            }

            m_dataBlocks[dataBlockIndex]->m_superBlocks[superBlock.m_header.m_blockIndex] = superBlock;

            if (superBlock.m_header.m_blockIndex == 0) {
                m_dataBlocks[dataBlockIndex]->m_rxControlBlock.m_metaRetrieved = true;
            }

            if (superBlock.m_header.m_blockIndex < RemoteNbOrginalBlocks) {
                m_dataBlocks[dataBlockIndex]->m_rxControlBlock.m_originalCount++;
            } else {
                m_dataBlocks[dataBlockIndex]->m_rxControlBlock.m_recoveryCount++;
            }

            m_dataBlocks[dataBlockIndex]->m_rxControlBlock.m_blockCount++;
        }
        else
        {
            qWarning("RemoteSourceThread::readPendingDatagrams: wrong super block size not processing");
        }
    }
}

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run()

void RemoteSourceThread::run ( )

private

Definition at line 80 of file remotesourcethread.cpp.

References m_running, and m_startWaiter.

{
    qDebug("RemoteSourceThread::run: begin");
    m_running = true;
    m_startWaiter.wakeAll();

    while (m_running)
    {
        sleep(1); // Do nothing as everything is in the data handler (dequeuer)
    }

    m_running = false;
    qDebug("RemoteSourceThread::run: end");
}

startStop()

void RemoteSourceThread::startStop

(

bool

start

)

Definition at line 48 of file remotesourcethread.cpp.

References RemoteSourceThread::MsgStartStop::create(), m_inputMessageQueue, and MessageQueue::push().

Referenced by RemoteSourceThread::MsgDataBind::MsgDataBind(), RemoteSource::start(), and RemoteSource::stop().

{
    MsgStartStop *msg = MsgStartStop::create(start);
    m_inputMessageQueue.push(msg);
}

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startWork()

void RemoteSourceThread::startWork ( )

private

Definition at line 60 of file remotesourcethread.cpp.

References m_running, m_socket, m_startWaiter, and m_startWaitMutex.

Referenced by handleInputMessages().

{
    qDebug("RemoteSourceThread::startWork");
    m_startWaitMutex.lock();
    m_socket = new QUdpSocket(this);
    start();
    while(!m_running)
        m_startWaiter.wait(&m_startWaitMutex, 100);
    m_startWaitMutex.unlock();
}

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stopWork()

void RemoteSourceThread::stopWork ( )

private

Definition at line 71 of file remotesourcethread.cpp.

References m_running, and m_socket.

Referenced by handleInputMessages().

{
    qDebug("RemoteSourceThread::stopWork");
    delete m_socket;
    m_socket = 0;
    m_running = false;
    wait();
}

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Member Data Documentation

m_address

QHostAddress RemoteSourceThread::m_address

private

Definition at line 92 of file remotesourcethread.h.

Referenced by RemoteSourceThread::MsgDataBind::getAddress().

m_dataBlocks

RemoteDataBlock* RemoteSourceThread::m_dataBlocks[m_nbDataBlocks]

private

ring buffer of data blocks indexed by frame affinity

Definition at line 96 of file remotesourcethread.h.

Referenced by readPendingDatagrams().

m_dataQueue

RemoteDataQueue* RemoteSourceThread::m_dataQueue

private

Definition at line 90 of file remotesourcethread.h.

Referenced by readPendingDatagrams().

m_inputMessageQueue

MessageQueue RemoteSourceThread::m_inputMessageQueue

private

Definition at line 89 of file remotesourcethread.h.

Referenced by dataBind(), handleInputMessages(), and startStop().

m_nbDataBlocks

const uint32_t RemoteSourceThread::m_nbDataBlocks = 4

staticprivate

number of data blocks in the ring buffer

Definition at line 95 of file remotesourcethread.h.

Referenced by readPendingDatagrams().

m_running

volatile bool RemoteSourceThread::m_running

private

Definition at line 87 of file remotesourcethread.h.

Referenced by run(), startWork(), and stopWork().

m_socket

QUdpSocket* RemoteSourceThread::m_socket

private

Definition at line 93 of file remotesourcethread.h.

Referenced by handleInputMessages(), readPendingDatagrams(), startWork(), and stopWork().

m_startWaiter

QWaitCondition RemoteSourceThread::m_startWaiter

private

Definition at line 86 of file remotesourcethread.h.

Referenced by run(), and startWork().

m_startWaitMutex

QMutex RemoteSourceThread::m_startWaitMutex

private

Definition at line 85 of file remotesourcethread.h.

Referenced by startWork().

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The documentation for this class was generated from the following files:

• plugins/channeltx/remotesource/remotesourcethread.h
• plugins/channeltx/remotesource/remotesourcethread.cpp