Module qos 

Constants

DEFAULT

rmw_qos_profile_default-equivalent: reliable + volatile + keep-last(10), automatic liveliness, no deadline / lifespan.

PARAMETERS

rmw_qos_profile_parameters-equivalent: depth = 1000.

SENSOR_DATA

rmw_qos_profile_sensor_data-equivalent: best-effort + volatile + keep-last(5).

SERVICES_DEFAULT

rmw_qos_profile_services_default-equivalent.

SYSTEM_DEFAULT

rmw_qos_profile_system_default-equivalent — an absence, not a profile: every policy is the SYSTEM_DEFAULT sentinel and the depth is 0, resolved by whichever backend is linked.