Skip to main content

RtDataClient

Namespace: COMLIB  ·  Library: Communication Library

#include <com/rt_data_client.h>

class COMLIB::RtDataClient

QTcpSocket subclass that talks the FIFF wire dialect of the mne_rt_server data port (default 4218).

Negotiates the per-session client id with setClientAlias / getClientId, fetches the FiffInfo (and optionally the digitiser point set) via readInfo / readMetadata, and then blocks on readRawBuffer to deliver one Eigen::MatrixXf sample matrix at a time. Parsing is delegated to FiffStream / FiffTag so this class never re-implements the binary framing; the only socket state it owns beyond the QTcpSocket base is the assigned m_clientID.

Inheritance​

Public Methods​

RtDataClient(parent)​

Creates the real-time data client.

Parameters:

  • parent : *QObject ** Parent QObject (optional).

disconnectFromHost()​

Attempts to close the socket.

If there is pending data waiting to be written, QAbstractSocket will enter ClosingState and wait until all data has been written. Eventually, it will enter UnconnectedState and emit the disconnected() signal.

getClientId()​

Requests the ID at mne_rt_server and returns it.

Returns:

  • qint32 — the requested id.

readInfo()​

Reads fiff measurement information of a data the connection.

Returns:

readMetadata()​

Reads fiff metaata class from data connection.

Returns:

  • MetaData — returns metadata class (FiffInfo and FiffDigitizerData)

readRawBuffer(p_nChannels, data, kind)​

Reads fiff measurement information of a data the connection.

Parameters:

  • p_nChannels : qint32 Number of channels to reshape the received data.

  • data : Eigen::MatrixXf & The read data - ToDo change this to raw buffer data object.

  • kind : FIFFLIB::fiff_int_t & Data kind.

setClientAlias(p_sAlias)​

Sets the alias of the data client.

Parameters:

  • p_sAlias : const QString & The alias of the data client.

Authors of this file​