Ability to dependency inject network layer. about restbed HOT 3 OPEN

Socket( void );
Socket::listen( port, bind_address, new_connection_callback );
Socket::connect( port, address, success_callback, error_callback );
Socket::write( ..., success_callback, error_callback );
Socket::read( ..., success_callback, error_callback );
Socket::set_option( name, value );
Socket::shutdown( void );
Socket::is_open( void );
Socket::is_closed( void );
static Socket::create( void );

Service::set_network_layer( TCPSocketFactory );
Service::set_network_layer( RS232SocketFactory );
etc...

Socket::schedule( work );

Runloop runloop;
runloop.schedule( work );