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Mail Archives: cygwin/2006/06/22/17:17:39

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Message-ID: <449B08E2.9040302@tlinx.org>
Date: Thu, 22 Jun 2006 14:17:22 -0700
From: Linda Walsh <cygwin AT tlinx DOT org>
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To: cygwin AT cygwin DOT com
Subject: CygPerl hangs opening FIFO after fork (in both parent&child)
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The attached test case is simple and fairly short.  It does not
depend on File::BOM (and has none of the code from it).

It's only dependency (other than perl) is the POSIX module,
where, from, the "fifo" command is taken.

Conceptually, it is simple:

- Create fifo (works)
- Fork        (works)
- Open fifo for communication between parent and child      (FAILS)

    (if successful, try to pass a short message, from child to
    parent, parent validates, then both processes exit)
---------
    Both the child and the parent hang on the "open".

Fork by itself works. 
Fifo communication, by itself, works.

Is this a simple enough test case?
Linda



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