Here is a list of all variables with links to the files they belong to:

• len : CANSocket_TEST.cpp, TCPSocket_TEST.cpp, UDPSocket_TEST.cpp, UnixDatagramSocket_TEST.cpp
• recv_msg : CANSocket_TEST.cpp, TCPSocket_TEST.cpp, UDPSocket_TEST.cpp, UnixDatagramSocket_TEST.cpp
• send_msg : CANSocket_TEST.cpp, TCPSocket_TEST.cpp, UDPSocket_TEST.cpp, UnixDatagramSocket_TEST.cpp
• sock_file : UnixDatagramSocket_TEST.cpp