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DDSOctetsDataReader Class Reference

<<interface>> Instantiates DataReader < DDS_Octets >. More...

Inheritance diagram for DDSOctetsDataReader:
DDSDataReader DDSDomainEntity DDSEntity

Public Member Functions

virtual DDS_ReturnCode_t read (DDS_OctetsSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, DDS_SampleStateMask sample_states=DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask view_states=DDS_ANY_VIEW_STATE, DDS_InstanceStateMask instance_states=DDS_ANY_INSTANCE_STATE)
 Access a collection of data samples from the DDSDataReader.
 
virtual DDS_ReturnCode_t take (DDS_OctetsSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples=DDS_LENGTH_UNLIMITED, DDS_SampleStateMask sample_states=DDS_ANY_SAMPLE_STATE, DDS_ViewStateMask view_states=DDS_ANY_VIEW_STATE, DDS_InstanceStateMask instance_states=DDS_ANY_INSTANCE_STATE)
 Access a collection of data-samples from the DDSDataReader.
 
virtual DDS_ReturnCode_t read_w_condition (DDS_OctetsSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples, DDSReadCondition *condition)
 Accesses via DDSOctetsDataReader::read the samples that match the criteria specified in the DDSReadCondition.
 
virtual DDS_ReturnCode_t take_w_condition (DDS_OctetsSeq &received_data, DDS_SampleInfoSeq &info_seq, DDS_Long max_samples, DDSReadCondition *condition)
 Analogous to DDSOctetsDataReader::read_w_condition except it accesses samples via the DDSOctetsDataReader::take operation.
 
virtual DDS_ReturnCode_t read_next_sample (DDS_Octets &received_data, DDS_SampleInfo &sample_info)
 Copies the next not-previously-accessed data value from the DDSDataReader.
 
virtual DDS_ReturnCode_t take_next_sample (DDS_Octets &received_data, DDS_SampleInfo &sample_info)
 Copies the next not-previously-accessed data value from the DDSDataReader.
 
virtual DDS_ReturnCode_t return_loan (DDS_OctetsSeq &received_data, DDS_SampleInfoSeq &info_seq)
 Indicates to the DDSDataReader that the application is done accessing the collection of received_data and info_seq obtained by some earlier invocation of read or take on the DDSDataReader.
 
- Public Member Functions inherited from DDSDataReader
virtual DDSReadConditioncreate_readcondition (DDS_SampleStateMask sample_states, DDS_ViewStateMask view_states, DDS_InstanceStateMask instance_states)
 Creates a DDSReadCondition.
 
virtual DDSReadConditioncreate_readcondition_w_params (DDS_ReadConditionParams &params)
 <<extension>> Creates a DDSReadCondition with parameters.
 
virtual DDSQueryConditioncreate_querycondition (DDS_SampleStateMask sample_states, DDS_ViewStateMask view_states, DDS_InstanceStateMask instance_states, const char *query_expression, const struct DDS_StringSeq &query_parameters)
 Creates a DDSQueryCondition.
 
virtual DDSQueryConditioncreate_querycondition_w_params (DDS_QueryConditionParams &params)
 <<extension>> Creates a DDSQueryCondition with parameters.
 
virtual DDS_ReturnCode_t delete_readcondition (DDSReadCondition *condition)
 Deletes a DDSReadCondition or DDSQueryCondition attached to the DDSDataReader.
 
virtual DDS_ReturnCode_t delete_contained_entities ()
 Deletes all the entities that were created by means of the "create" operations on the DDSDataReader.
 
virtual DDS_ReturnCode_t wait_for_historical_data (const DDS_Duration_t &max_wait)
 Waits until all "historical" data is received for DDSDataReader entities that have a non-VOLATILE Durability Qos kind.
 
virtual DDS_ReturnCode_t acknowledge_sample (const DDS_SampleInfo &sample_info)
 <<extension>> Acknowledges a single sample explicitly.
 
virtual DDS_ReturnCode_t acknowledge_all ()
 <<extension>> Acknowledges all previously accessed samples.
 
virtual DDS_ReturnCode_t acknowledge_sample (const DDS_SampleInfo &sample_info, const DDS_AckResponseData_t &response_data)
 <<extension>> Acknowledges a single sample explicitly.
 
virtual DDS_ReturnCode_t acknowledge_all (const DDS_AckResponseData_t &response_data)
 <<extension>> Acknowledges all previously accessed samples.
 
virtual DDS_ReturnCode_t get_matched_publications (DDS_InstanceHandleSeq &publication_handles)
 Retrieves the list of publications currently "associated" with this DDSDataReader.
 
virtual DDS_ReturnCode_t get_matched_publication_data (DDS_PublicationBuiltinTopicData &publication_data, const DDS_InstanceHandle_t &publication_handle)
 Retrieves the information on a publication that is currently "associated" with the DDSDataReader.
 
virtual DDS_ReturnCode_t get_matched_publication_participant_data (DDS_ParticipantBuiltinTopicData &participant_data, const DDS_InstanceHandle_t &publication_handle)
 <<extension>> Retrieves the information on the discovered DDSDomainParticipant associated with the publication that is currently matching with the DDSDataReader.
 
virtual DDSTopicDescriptionget_topicdescription ()
 Returns the DDSTopicDescription associated with the DDSDataReader.
 
virtual DDSSubscriberget_subscriber ()
 Returns the DDSSubscriber to which the DDSDataReader belongs.
 
virtual DDS_ReturnCode_t get_sample_rejected_status (DDS_SampleRejectedStatus &status)
 Accesses the DDS_SAMPLE_REJECTED_STATUS communication status.
 
virtual DDS_ReturnCode_t get_liveliness_changed_status (DDS_LivelinessChangedStatus &status)
 Accesses the DDS_LIVELINESS_CHANGED_STATUS communication status.
 
virtual DDS_ReturnCode_t get_requested_deadline_missed_status (DDS_RequestedDeadlineMissedStatus &status)
 Accesses the DDS_REQUESTED_DEADLINE_MISSED_STATUS communication status.
 
virtual DDS_ReturnCode_t get_requested_incompatible_qos_status (DDS_RequestedIncompatibleQosStatus &status)
 Accesses the DDS_REQUESTED_INCOMPATIBLE_QOS_STATUS communication status.
 
virtual DDS_ReturnCode_t get_sample_lost_status (DDS_SampleLostStatus &status)
 Accesses the DDS_SAMPLE_LOST_STATUS communication status.
 
virtual DDS_ReturnCode_t get_subscription_matched_status (DDS_SubscriptionMatchedStatus &status)
 Accesses the DDS_SUBSCRIPTION_MATCHED_STATUS communication status.
 
virtual DDS_ReturnCode_t get_datareader_cache_status (DDS_DataReaderCacheStatus &status)
 <<extension>> Gets the datareader cache status for this reader.
 
virtual DDS_ReturnCode_t get_datareader_protocol_status (DDS_DataReaderProtocolStatus &status)
 <<extension>> Gets the datareader protocol status for this reader.
 
virtual DDS_ReturnCode_t get_matched_publication_datareader_protocol_status (DDS_DataReaderProtocolStatus &status, const DDS_InstanceHandle_t &publication_handle)
 <<extension>> Gets the datareader protocol status for this reader, per matched publication identified by the publication_handle.
 
virtual DDS_ReturnCode_t set_qos (const DDS_DataReaderQos &qos)
 Sets the reader QoS.
 
virtual DDS_ReturnCode_t get_qos (DDS_DataReaderQos &qos)
 Gets the reader QoS.
 
virtual DDS_ReturnCode_t set_qos_with_profile (const char *library_name, const char *profile_name)
 <<extension>> Changes the QoS of this reader using the input XML QoS profile.
 
virtual DDS_ReturnCode_t set_listener (DDSDataReaderListener *l, DDS_StatusMask mask=DDS_STATUS_MASK_ALL)
 Sets the reader listener.
 
virtual DDSDataReaderListenerget_listener ()
 Gets the reader listener.
 
virtual DDSTopicQuerycreate_topic_query (const DDS_TopicQuerySelection &selection)
 Creates a DDSTopicQuery.
 
virtual DDS_ReturnCode_t delete_topic_query (DDSTopicQuery *query)
 Deletes a DDSTopicQuery.
 
virtual DDSTopicQuerylookup_topic_query (const DDS_GUID_t &guid)
 Retrieves an existing DDSTopicQuery.
 
virtual DDS_ReturnCode_t enable ()
 Enables the DDSEntity.
 
virtual DDSStatusConditionget_statuscondition ()
 Allows access to the DDSStatusCondition associated with the DDSEntity.
 
virtual DDS_StatusMask get_status_changes ()
 Retrieves the list of communication statuses in the DDSEntity that are triggered.
 
virtual DDS_InstanceHandle_t get_instance_handle ()
 Allows access to the DDS_InstanceHandle_t associated with the DDSEntity.
 

Static Public Member Functions

static DDSOctetsDataReadernarrow (DDSDataReader *reader)
 Narrow the given DDSDataReader pointer to a DDSOctetsDataReader pointer.
 

Detailed Description

<<interface>> Instantiates DataReader < DDS_Octets >.

When reading or taking data with this reader, if you request a copy of the samples instead of a loan, and the byte array in a destination data sample is NULL, the middleware will allocate a new array for you of sufficient length to hold the received data. The new array will be allocated with DDS_OctetBuffer_alloc; the sample's destructor will delete it.

A non- NULL array is assumed to be allocated to sufficient length to store the incoming data. It will not be reallocated.

See Also
FooDataReader
DDSDataReader

Member Function Documentation

virtual DDS_ReturnCode_t DDSOctetsDataReader::read ( DDS_OctetsSeq received_data,
DDS_SampleInfoSeq info_seq,
DDS_Long  max_samples = DDS_LENGTH_UNLIMITED,
DDS_SampleStateMask  sample_states = DDS_ANY_SAMPLE_STATE,
DDS_ViewStateMask  view_states = DDS_ANY_VIEW_STATE,
DDS_InstanceStateMask  instance_states = DDS_ANY_INSTANCE_STATE 
)
virtual

Access a collection of data samples from the DDSDataReader.

See Also
FooDataReader::read
virtual DDS_ReturnCode_t DDSOctetsDataReader::take ( DDS_OctetsSeq received_data,
DDS_SampleInfoSeq info_seq,
DDS_Long  max_samples = DDS_LENGTH_UNLIMITED,
DDS_SampleStateMask  sample_states = DDS_ANY_SAMPLE_STATE,
DDS_ViewStateMask  view_states = DDS_ANY_VIEW_STATE,
DDS_InstanceStateMask  instance_states = DDS_ANY_INSTANCE_STATE 
)
virtual

Access a collection of data-samples from the DDSDataReader.

See Also
FooDataReader::take
virtual DDS_ReturnCode_t DDSOctetsDataReader::read_w_condition ( DDS_OctetsSeq received_data,
DDS_SampleInfoSeq info_seq,
DDS_Long  max_samples,
DDSReadCondition condition 
)
virtual

Accesses via DDSOctetsDataReader::read the samples that match the criteria specified in the DDSReadCondition.

See Also
FooDataReader::read_w_condition
virtual DDS_ReturnCode_t DDSOctetsDataReader::take_w_condition ( DDS_OctetsSeq received_data,
DDS_SampleInfoSeq info_seq,
DDS_Long  max_samples,
DDSReadCondition condition 
)
virtual

Analogous to DDSOctetsDataReader::read_w_condition except it accesses samples via the DDSOctetsDataReader::take operation.

See Also
FooDataReader::take_w_condition
virtual DDS_ReturnCode_t DDSOctetsDataReader::read_next_sample ( DDS_Octets received_data,
DDS_SampleInfo sample_info 
)
virtual

Copies the next not-previously-accessed data value from the DDSDataReader.

See Also
FooDataReader::read_next_sample
virtual DDS_ReturnCode_t DDSOctetsDataReader::take_next_sample ( DDS_Octets received_data,
DDS_SampleInfo sample_info 
)
virtual

Copies the next not-previously-accessed data value from the DDSDataReader.

See Also
FooDataReader::take_next_sample
virtual DDS_ReturnCode_t DDSOctetsDataReader::return_loan ( DDS_OctetsSeq received_data,
DDS_SampleInfoSeq info_seq 
)
virtual

Indicates to the DDSDataReader that the application is done accessing the collection of received_data and info_seq obtained by some earlier invocation of read or take on the DDSDataReader.

See Also
FooDataReader::return_loan
static DDSOctetsDataReader* DDSOctetsDataReader::narrow ( DDSDataReader reader)
static

Narrow the given DDSDataReader pointer to a DDSOctetsDataReader pointer.

See Also
FooDataReader::narrow

RTI Connext Traditional C++ API Version 6.0.1 Copyright © Sat Nov 23 2019 Real-Time Innovations, Inc