Abstraction of Linux FIFO used to receive events. To write to FIFO, use OutputDeviceFileInterface. More...

Inheritance diagram for trikHal::FifoInterface:

Collaboration diagram for trikHal::FifoInterface:

Signals
void	newData (const QString &data)
	Emitted when new data is read from FIFO. More...

void	readError ()
	Emitted when something is wrong with opened FIFO file and reading failed. More...

Public Member Functions
virtual bool	open ()=0
	Opens FIFO file and starts listening for events. More...

virtual bool	close ()=0
	Closes FIFO file and stops listening for events. More...

virtual QString	fileName ()=0
	Returns file name of a FIFO file. More...

Detailed Description

Abstraction of Linux FIFO used to receive events. To write to FIFO, use OutputDeviceFileInterface.

Member Function Documentation

virtual bool trikHal::FifoInterface::close ( )

pure virtual

Closes FIFO file and stops listening for events.

virtual QString trikHal::FifoInterface::fileName ( )

pure virtual

Returns file name of a FIFO file.

void trikHal::FifoInterface::newData ( const QString & data )

signal

Emitted when new data is read from FIFO.

virtual bool trikHal::FifoInterface::open ( )

pure virtual

Opens FIFO file and starts listening for events.

void trikHal::FifoInterface::readError ( )

signal

Emitted when something is wrong with opened FIFO file and reading failed.

It may be caused, for example, by another process reading from the same FIFO, it may partially read data.

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