From: Maggie Xiao <mxiao@...>
Date: 2002-07-12T23:18:36+09:00
Subject: RE: new to ruby,how to make FIFO in ruby?

>Thanks,but if I want to create a fifo file in pure ruby way, I mean don't 
need to call "mkfifo",anyone can tell me how to handle it ?Thanks.

Maggie



===== Original Message From ruby-talk@ruby-lang.org =====
>Maggie Xiao graced us by uttering:
>> Is there anyone can tell me how to make FIFO in ruby? I cannot find
>> the related method? Thanks.
>
>When I ported a Perl script that used (Unix special filetype) FIFOs, I
>simply used Kernal::system to call the external executable.
>
>Another option might be to use the mkfifo(3) POSIX call on systems that
>support it.
>
>If anyone knows of a more graceful way to accomplish this, I'd be very
>interested in hearing it.
>
>Just as a (somewhat anal) optimization/efficiency issue, backticks would
>be overkill, as mknod(1)/mkfifo(1) don't write anything to stdout.  It's
>sufficient to run under Kernel::system and check the return value,
>rather than run it in backticks and capture output that may not exists
>into a variable that may not even be present.
>
>A similar, Perl-related issue can be found here (if you have the perldoc
>command):
>
>    $ perldoc -q map
>
>or here:
>
>    http://www.perldoc.com/perl5.6.1/pod/perlfaq6.html
>
>    --> "What's wrong with using grep or map in a void context?"
>
>> Maggie
>
>HTH
>Tim Hammerquist
>--
>  Westley: Why didn't you wait for me?
>Buttercup: Well, you were dead.
>    -- "The Princess Bride"