• main() : mm_radio.cpp , nanomsg_radio.cpp , tests/gtests/radio.cpp
• MM_REGISTER_PACKET_INFO() : tests/gtests/radio.cpp
• oldman_foo() : mm_radio.cpp
• oldtimer_foo() : mm_radio.cpp
• TEST() : tests/gtests/radio.cpp
• test_recv() : nanomsg_radio.cpp