Re: Send datagrams with no response expected [Important]

[Brad Miller <miller@CS.ROCHESTER.EDU>]

    Date: Fri, 1 Sep 89 12:37 EDT
    From: barmar@Think.COM (Barry Margolin)

    In Symbolics 3640 Genera 7.2, System 376.166,
    ...
    world load FEP0:>rel-7-2-tmc-ver-3.load.1, on Symbolics 3640 #5576 (Occam):

    I'm trying to implement the client side of a logging protocol.  It is a
    datagram protocol.  The client simply sends a single UDP datagram with
    the logging packet to the log server.  The server sends no reply.
    There's no receipt confirmation or error checking other than the UDP
    checksum.

    I can't see how to implement this common, extremely simple thing with
    the Generic Network System.  In fact, I can't see how to fill in the UDP
    packet at all; the (empty) packet is sent and it starts waiting for a
    response before my :INVOKE-WITH-STREAM-AND-CLOSE function is invoked.
    In the CHAOS-SIMPLE medium this would be done by putting the data after
    the contact name.

    I need to know how to do this today.

						    barmar

Gee, if you find out, tell me or post it here; I've been trying to do the
same thing (have symbolics machines send UDP RWHO packets via broadcast)
since, oh, 1986; went through a YEAR's conversation with hoss convicing them
that UDP really should work that way, and only got told it would be fixed in
an unspecified future release. Obviously enough, it has yet to be.

I think I still have the mail archived if it would help you.