RE: bidirectional named pipe?

From: Miller, Brendan (Brendan.Miller@Dialogic.com)
Date: Fri Feb 02 2001 - 19:49:10 EST

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    I thought mkfifo was only unidirectional...

    Brendan

    Please cc: me personally, as I am not subscribed.

    -----Original Message-----
    From: J . A . Magallon [mailto:jamagallon@able.es]
    Sent: Friday, February 02, 2001 4:47 PM
    To: Miller, Brendan
    Cc: 'linux-kernel @ vger . kernel . org'
    Subject: Re: bidirectional named pipe?

    Perhaps man 2 mkfifo ?

    On 02.03 "Miller, Brendan" wrote:
    >
    > I've countless web searches and linux-kernel archives, but I haven't yet
    > found the answer to my question.
    >
    > I'm porting some software to Linux that requires use of a bidirectional,
    > named pipe. The architecture is as follows: A server creates a named
    pipe
    > in the /tmp directory. Any client can then open("/tmp/pipename",
    > O_RDWR|O_NDELAY) and gain access to the server. The pipe is
    bidirectional,
    > so the client and server communicate on the same pipe. I support a number
    > of clients on the single pipe using file-locking to prohibit from two
    > clients from writing/reading at once.
    >
    > How can I do this under Linux? In SVR4 Unices, I just use pipe() as it's
    > pipes are bidirectional, and I can attach a name with fattach(). In SVR3
    > Unices, I go through a bunch of hacking using the "stream clone device --
    > /dev/spx". I experiemented with socket-based pipes under Linux, but I
    > couldn't gain access to them by open()ing the name. Is there help? I
    > really don't want to use LiS (the Linux Streams) package, as I'd rather do
    > something native and not be dependent on another module. Plus, I read
    > somewhere that this was a poor way to do things.
    >
    > Brendan
    >
    > Please cc: me personally, as I am not subscribed.
    > -
    > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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    > 

    -- 
J.A. Magallon                                                      $> cd pub
mailto:jamagallon@able.es                                          $> more
beer

    Linux werewolf 2.4.1-ac1 #2 SMP Fri Feb 2 00:19:04 CET 2001 i686
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