Provided by: libpoe-perl_1.3500-1_all bug


       POE::Pipe::TwoWay - a portable API for two-way pipes


         my ($a_read, $a_write, $b_read, $b_write) = POE::Pipe::TwoWay->new();
         die "couldn't create a pipe: $!" unless defined $a_read;


       Pipes are troublesome beasts because there are a few different, incompatible ways to
       create them, and many operating systems implement some subset of them.  Therefore it's
       impossible to rely on a particular method for their creation.

       POE::Pipe::TwoWay will attempt to create a bidirectional pipe using an appropriate method.
       If that fails, it will fall back to some other means until success or all methods have
       been exhausted.  Some operating systems require certain exceptions, which are hardcoded
       into the library.

       The upshot of all this is that an application can use POE::Pipe::TwoWay to create a
       bidirectional pipe without worrying about the mechanism that works in the current run-time

       By the way, POE::Pipe::TwoWay doesn't use POE internally, so it may be used in stand-alone
       applications without POE.


   new [TYPE]
       Create a new two-way pipe, optionally constraining it to a particular TYPE of pipe.  Two-
       way pipes have two ends, both of which can be read from and written to.  Therefore, a
       successful new() call will return four handles: read and write for one end, and read and
       write for the other.  On failure, new() sets $! to describe the error and returns nothing.

         my ($a_read, $a_write, $b_read, $b_write) = POE::Pipe::TwoWay->new();
         die $! unless defined $a_read;

       TYPE may be one of "pipe", "socketpair", or "inet".  When set, POE::Pipe::TwoWay will
       constrain its search to either "pipe()", a UNIX-domain "socketpair()", or plain old
       sockets, respectively.  Otherwise new() will try each method in order, or a particular
       method predetermined to be the best one for the current operating environment.


       POE::Pipe::OneWay may block up to one second on some systems if failure occurs while
       trying to create "inet" sockets.


       POE::Pipe, POE::Pipe::OneWay.


       POE::Pipe::TwoWay is copyright 2000-2008 by Rocco Caputo.  All rights reserved.
       POE::Pipe::TwoWay is free software; you may redistribute it and/or modify it under the
       same terms as Perl itself.