Messages in this thread | | | From | "Miller, Brendan" <> | Subject | bidirectional named pipe? | Date | Fri, 2 Feb 2001 19:33:09 -0500 |
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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
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