6.1 Client applications

Using this library to establish a TCP connection to a server is as simple as opening a file. See also http_open/3.

dump_swi_homepage :-
    setup_call_cleanup(
        tcp_connect(www.swi-prolog.org:http, Stream, []),
        ( format(Stream,
                 'GET / HTTP/1.1~n\c
                  Host: www.swi-prolog.org~n\c
                  Connection: close~n~n', []),
          flush_output(Stream),
          copy_stream_data(Stream, current_output)
        ),
        close(S)).

To deal with timeouts and multiple connections, threads, wait_for_input/3 and/or non-blocking streams (see tcp_fcntl/3) can be used.