This field is optional.

The maximum size of this string is 8 characters.

If "thread_name_prefix" is not set by the user, RTI Connext creates the following prefix: 'r' + 'Tr' + participant identifier + '\0'.

Where 'r' indicates this is a thread from RTI, 'Tr' indicates the thread is related to a transport, and participant identifier contains 5 characters as follows:

If participant_name is set: The participant identifier will be the first 3 characters and the last 2 characters of the participant_name.

If participant_name is not set, then the identifier is computed as domain_id (3 characters) followed by participant_id (2 characters).

If participant_name is not set and the participant_id is set to -1 (defalt value), then the participant identifier is computed as the last 5 digits of the rtps_instance_id in the participant GUID.