Skip to content

iox::dds::DataReader🔗

Abstraction for DDS Data Readers. #include <iceoryx_dds/dds/data_reader.hpp>

Inherited by iox::dds::CycloneDataReader

Public Functions🔗

Name
virtual void connect() =0
Connect the DataReader to the underlying DDS network.
virtual iox::cxx::optional< IoxChunkDatagramHeader > peekNextIoxChunkDatagramHeader() =0
peekNextIoxChunkDatagramHeader Get the IoxChunkDatagramHeader of the next sample if one is available.
virtual bool hasSamples() =0
Checks if new samples are ready to take.
virtual iox::cxx::expected< DataReaderError > takeNext(const IoxChunkDatagramHeader datagramHeader, uint8_t const userHeaderBuffer, uint8_t const userPayloadBuffer) =0
take Take the next available sample from the DDS data space.
virtual capro::IdString_t getServiceId() const =0
get ID of the service
virtual capro::IdString_t getInstanceId() const =0
get ID of the instance
virtual capro::IdString_t getEventId() const =0
get ID of the event

Protected Functions🔗

Name
DataReader() =default

Public Functions Documentation🔗

function connect🔗

virtual void connect() =0

Connect the DataReader to the underlying DDS network.

Reimplemented by: iox::dds::CycloneDataReader::connect

function peekNextIoxChunkDatagramHeader🔗

virtual iox::cxx::optional< IoxChunkDatagramHeader > peekNextIoxChunkDatagramHeader() =0

peekNextIoxChunkDatagramHeader Get the IoxChunkDatagramHeader of the next sample if one is available.

Return: The IoxChunkDatagramHeader of the next sample if one is available.

Reimplemented by: iox::dds::CycloneDataReader::peekNextIoxChunkDatagramHeader

function hasSamples🔗

virtual bool hasSamples() =0

Checks if new samples are ready to take.

Return: True if new samples are available.

Reimplemented by: iox::dds::CycloneDataReader::hasSamples

function takeNext🔗

virtual iox::cxx::expected< DataReaderError > takeNext(
    const IoxChunkDatagramHeader datagramHeader,
    uint8_t *const userHeaderBuffer,
    uint8_t *const userPayloadBuffer
) =0

take Take the next available sample from the DDS data space.

Parameters:

  • datagramHeader with size information
  • userHeaderBuffer buffer for the user-header
  • userPayloadBuffer buffer for the user-payload

Return: Error if unsuccessful.

Reimplemented by: iox::dds::CycloneDataReader::takeNext

function getServiceId🔗

virtual capro::IdString_t getServiceId() const =0

get ID of the service

Reimplemented by: iox::dds::CycloneDataReader::getServiceId

function getInstanceId🔗

virtual capro::IdString_t getInstanceId() const =0

get ID of the instance

Reimplemented by: iox::dds::CycloneDataReader::getInstanceId

function getEventId🔗

virtual capro::IdString_t getEventId() const =0

get ID of the event

Reimplemented by: iox::dds::CycloneDataReader::getEventId

Protected Functions Documentation🔗

function DataReader🔗

DataReader() =default

Updated on 17 March 2022 at 12:15:57 CET