Protect add_participant_proxy_data on initPDP (#1035)
Protect add_participant_proxy_data on initPDP (#1035)

This is a port of #996
eProsima/Fast-RTPS,eProsima/Fast-DDS,eProsima/Fast-RTPS,eProsima/Fast-RTPS,eProsima/Fast-DDS,eProsima/Fast-RTPS,eProsima/Fast-DDS,eProsima/Fast-RTPS,eProsima/Fast-DDS,eProsima/Fast-DDS