System Properties
RTI Connext uses the DDS.PropertyQosPolicy of a DomainParticipant to maintain a set of properties that provide system information such as hostname.
Unless the default DDS.DomainParticipantQos value is overwritten, the system properties are automatically set in the DDS.DomainParticipantQos obtained by calling the procedure DDS.DomainParticipantFactory.get_default_participant_qos or using the constant DDS.PARTICIPANT_QOS_DEFAULT.
System properties are also automatically set in the DDS.DomainParticipantQos loaded from an XML QoS profile unless you disable property inheritance using the attribute inherit in the XML tag <property>.
By default, the system properties are propagated to other DomainParticipants in the system and can be accessed through DDS.ParticipantBuiltinTopicData.property.
You can disable the propagation of individual properties by setting the flag DDS.Property_t.propagate to DDS.BOOLEAN_FALSE or by removing the property using the procedure DDSPropertyQosPolicyHelper.remove_property.
The number of system properties set on the DDS.DomainParticipantQos is platform specific.
| Property Name | Description |
|---|---|
| dds.sys_info.hostname | Name of the host where the process is running |
| dds.sys_info.process_id | Process ID |
| dds.sys_info.username | Name of the user running the process |
| dds.sys_info.execution_timestamp | Time when the execution started |
| dds.sys_info.creation_timestamp | Time when the executable was created |
| dds.sys_info.executable_filepath | Name and full path of the executable |
| dds.sys_info.target | Architecture for which the library was compiled |