silicone(架空のオレオレ言語)で書かれた、UDPSocket クラスを使ったデモ。

demoUDPSocket.si

using std;
using std.io;
using std.text;
using net.socket;


let port        : int           = 52292;
let udp_sender  : UDPSocket     = new UDPSocket( port );

try {
    udp_sender.connect( "www.const.com", port );

    let send_bytes : byte[]     = Encoding.ASCII.encodeFromString( "Is anybody there?" );
    udp_sender.send( send_bytes, send_bytes.length );

    let remote_any_endpoint : IPEndPoint    = new IPEndPoint( IPAddress.ANY, 0 );

    let receive_bytes   : byte[]    = udp_sender.receive( remote_any_endpoint );
    let result_data     : string    = Encoding.ASCII.decodeFromBytes( receive_bytes );

    console.printf( "this is the message you received: %s\n", result_data.toString() );
    console.printf( "this message was sent from %s on their port number\n",
                    remote_any_endpoint.address.toString(),
                    remote_any_endpoint.port.toString()
                    );

} catch ( e : Exception ) {
    console.printf( e.toString() );
} finalize {
    udp_sender.close();
}