rt_client.cpp

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//=============================================================================================================
 
//=============================================================================================================
// INCLUDES
//=============================================================================================================
 
#include "rt_client.h"
#include "rt_cmd_client.h"
#include "rt_data_client.h"
 
//=============================================================================================================
// USED NAMESPACES
//=============================================================================================================
 
using namespace COMLIB;
using namespace FIFFLIB;
using namespace Eigen;
 
//=============================================================================================================
// DEFINE MEMBER METHODS
//=============================================================================================================
 
RtClient::RtClient(QString p_sRtServerHostname, QString p_sClientAlias, QObject *parent)
: QThread(parent)
, m_bIsConnected(false)
, m_bIsMeasuring(false)
, m_bIsRunning(false)
, m_sClientAlias(p_sClientAlias)
, m_sRtServerHostName(p_sRtServerHostname)
, m_iDefaultPort(4217)
{
}
 
//=============================================================================================================
 
RtClient::~RtClient()
{
    stop();
}
 
//=============================================================================================================
 
bool RtClient::getConnectionStatus()
{
    return m_bIsConnected;
}
 
//=============================================================================================================
 
bool RtClient::stop()
{
    m_bIsRunning = false;
    //QThread::wait();
 
    return true;
}
 
//=============================================================================================================
 
void RtClient::run()
{
    m_bIsRunning = true;
 
    //
    // Connect Clients
    //
    RtCmdClient t_cmdClient;
    t_cmdClient.connectToHost(m_sRtServerHostName,m_iDefaultPort);
    t_cmdClient.waitForConnected(1000);
 
    while(t_cmdClient.state() != QTcpSocket::ConnectedState)
    {
        msleep(100);
        t_cmdClient.connectToHost(m_sRtServerHostName,m_iDefaultPort);
        t_cmdClient.waitForConnected(1000);
    }
 
    RtDataClient t_dataClient;
    t_dataClient.connectToHost(m_sRtServerHostName,m_iDefaultPort);
    t_dataClient.waitForConnected();
 
    mutex.lock();
    m_bIsConnected = true;
    mutex.unlock();
 
    emit connectionChanged(m_bIsConnected);
 
    msleep(1000);
 
    //
    // get client ID
    //
    qint32 clientId = t_dataClient.getClientId();
 
    //
    // request available commands
    //
    t_cmdClient.requestCommands();
 
    //
    // Inits
    //
    MatrixXf matData;
 
    fiff_int_t kind;
 
    qint32 from = 0;
    qint32 to = -1;
 
    // set data client alias -> for convinience (optional)
    t_dataClient.setClientAlias(m_sClientAlias); // used in option 2 later on
 
//    // example commands
//    t_cmdClient["help"].send();
//    t_cmdClient.waitForDataAvailable(1000);
//    qDebug() << t_cmdClient.readAvailableData();
//    t_cmdClient["clist"].send();
//    t_cmdClient.waitForDataAvailable(1000);
//    qDebug() << t_cmdClient.readAvailableData();
//    t_cmdClient["conlist"].send();
//    t_cmdClient.waitForDataAvailable(1000);
//    qDebug() << t_cmdClient.readAvailableData();
 
    // read meas info
    t_cmdClient["measinfo"].pValues()[0].setValue(clientId);
    t_cmdClient["measinfo"].send();
 
    m_pFiffInfo = t_dataClient.readInfo();
 
    // start measurement
    t_cmdClient["start"].pValues()[0].setValue(clientId);
    t_cmdClient["start"].send();
 
    while(m_bIsRunning)
    {
 
//        while(m_bIsMeasuring)
 
        t_dataClient.readRawBuffer(m_pFiffInfo->nchan, matData, kind);
 
        if(kind == FIFF_DATA_BUFFER)
        {
            to += matData.cols();
            qInfo("Reading %d ... %d  =  %9.3f ... %9.3f secs...", from, to,
                  static_cast<float>(from)/m_pFiffInfo->sfreq,
                  static_cast<float>(to)/m_pFiffInfo->sfreq);
            from += matData.cols();
 
            emit rawBufferReceived(matData);
        }
        else if(FIFF_DATA_BUFFER == FIFF_BLOCK_END)
            m_bIsRunning = false;
 
        qInfo("[done]");
    }
 
    //
    // Disconnect Stuff
    //
    t_cmdClient.disconnectFromHost();
    t_dataClient.disconnectFromHost();
 
    mutex.lock();
    m_bIsConnected = false;
    mutex.unlock();
 
    emit connectionChanged(m_bIsConnected);
}