On Saturday, 12 May 2018 at 09:29:43 UTC, Dustin Keeting wrote:
I'm setting up two applications, a client and a server, that
will exchange some data back and forth. The server may be on
the same machine as the client, or it may not be, or there
might be multiple clients which may or may not be on the same
machine. Both applications will be running other code and I'd
like them to be able to access a list of received packets
rather than waiting for them to come in.
What do I need to do to set this up? This is as far as I've got:
ushort port = 3000;
auto sender = new UdpSocket();
sender.blocking = false;
auto address = new InternetAddress(port);
sender.bind(address);
ubyte[Packet.sizeof] bytes;
Packet* packet = cast(Packet*)bytes.ptr;
//not sure how to convert a struct to big endian easily?
sender.send(bytes);
I'm not really sure how to receive sent bytes or if I need to
put in ip addresses to make it work online? I've looked at a
couple of examples and I've gotten some html to work by
accessing a localhost port, but I've always struggled with
networking, so if someone can help explain how I'm meant to
connect sockets that may be online or on the same machine...
that would be a big help!
You may look at my Web page
http://www.huckert.com/ehuckert/huckertp112.html under
the heading "Sockets". You will find there a working UDP sender
(a client) and
a working receiver (a server). Both programs are written in D. I
use UDP heavily for
logging. For the communication between two processes on the same
machine I would rather recommend TCP instead of UDP. To connect
sockets on the same machine it
is normally sufficient to use "localhost" as the hostname or
"127.0.0.1". From time
to time I encounter a small problem: the firewalls on the
machines may block the communication on the ports. For tests I
prefer switching off the firewalls.
E.Huckert
