| Function | portable_socket_pair | Return a pair of TCP sockets connected to each other. |
| Class | TCPClient | Undocumented |
| Class | TCPConnectionHandler | Undocumented |
| Class | TestTCPServerInAThread | Undocumented |
| Class | TestTestingSmartServer | Undocumented |
| Class | FakeServer | Minimal implementation to pass to TestingSmartConnectionHandler |
| Class | TestTestingSmartConnectionHandler | Undocumented |