Re: Sending and receiving UDP socket broadcast messages

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From: Arkady Frenkel (arkadyf_at_hotmailxdotxcom)
Date: 11/08/04

  • Next message: Arkady Frenkel: "Re: Redirecting connections - other technologies" 
    Date: Mon, 8 Nov 2004 23:26:30 +0200

    network adapter , by default , set to full duplex , so it send/recv
    simultaneously.
    Arkady

    "Edward Diener" <diener@ORsoftware.com> wrote in message
    news:O6Yd$QcxEHA.1204@TK2MSFTNGP10.phx.gbl...
    > I want to both send and receive broadcast messages from a single port. Is
    > this possible without having receiving messages block the sending of
    > broadcast messages ?
    >
    > Initially I thought I would do this by having two different sockets using
    > the same port address and binding to that address, one for receiving and
    one
    > for sending. However the documentation for the socket option SO_REUSEADDR
    > suggests that there is no guarantee that the socket I use for inputting
    the
    > messages will actually receive the data as opposed to the socket I use for
    > sending messages. The SO_REUSEADDR doc says:
    >
    > "Also, if two sockets are bound to the same port the behavior is undefined
    > as to which port will receive packets."
    >
    > I think this should really be "which socket" instead of "which port", but
    > the sense is the same as above. This leads me to believe that that using
    two
    > different sockets on the same port, one for sending and one for receiving
    is
    > redundant. So the initial question stands: if I have received data waiting
    > to be read at a port address, can I still send out data on that same port
    > without losing my received data ?
    >
    >

  • Next message: Arkady Frenkel: "Re: Redirecting connections - other technologies"

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