DDS_DiscoveryQosPolicy Struct Reference

<<cert>> Specifies the attributes required to discover participants in the domain. More...

#include <dds_c_domain.h>

Data Fields
struct DDS_StringSeq	initial_peers
	Determines the initial list of peers that will be contacted by the Discovery mechanism to send announcements about the presence of this participant.If there is a remote peer DDS_DomainParticipant such as is described this list, it will become aware of this participant and will engage in the Discovery protocol to exchange meta-data with this participant.
struct DDS_StringSeq	enabled_transports
	The transports available for use by the Discovery mechanism.Only these transports can be used by the discovery mechanism to send meta-traffic via the builtin endpoints (built-in DDS_DataReader and DDS_DataWriter).

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Detailed Description

<<cert>> Specifies the attributes required to discover participants in the domain.

Entity:

DDS_DomainParticipant

Properties:

RxO = N/A
Changeable = NO

Usage

This extended Qos is used to define how participants find each other on a network.

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Field Documentation

struct DDS_StringSeq DDS_DiscoveryQosPolicy::initial_peers

Determines the initial list of peers that will be contacted by the Discovery mechanism to send announcements about the presence of this participant.If there is a remote peer DDS_DomainParticipant such as is described this list, it will become aware of this participant and will engage in the Discovery protocol to exchange meta-data with this participant.

Each element of this list must be a peer descriptor in the proper format.

[default] Empty sequence

[range] Sequence of arbitrary length.

struct DDS_StringSeq DDS_DiscoveryQosPolicy::enabled_transports

The transports available for use by the Discovery mechanism.Only these transports can be used by the discovery mechanism to send meta-traffic via the builtin endpoints (built-in DDS_DataReader and DDS_DataWriter).

Also determines the unicast addresses on which the Discovery mechanism will listen for meta-traffic. These along with the domain_id and participant_id determine the unicast locators on which the Discovery mechanism can receive meta-data.

The memory for the strings in this sequence is managed according to the conventions described in Conventions. In particular, be careful to avoid a situation in which RTI Connext Micro allocates a string on your behalf and you then reuse that string in such a way that RTI Connext Micro believes it to have more memory allocated to it than it actually does.

[default] Empty sequence. All the transports available to the DomainParticipant are available for use by the Discovery mechanism.

[range] Sequence of non-null,non-empty strings.