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SubjectRE: bidirectional named pipe?
Date
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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> Please read the FAQ at http://www.tux.org/lkml/
>
--
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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