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Mail Archives: cygwin/2014/06/30/14:05:13

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From: "Nellis, Kenneth" <Kenneth DOT Nellis AT xerox DOT com>
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject: can't share fifo between 32-bit and 64-bit Cygwins
Date: Mon, 30 Jun 2014 18:04:45 +0000
Message-ID: <0D835E9B9CD07F40A48423F80D3B5A702E7D8967@USA7109MB022.na.xerox.net>
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Just thought I'd share an observation I found interesting.
Not a problem for me, so not asking for any particular response.

If I create a named pipe (mkfifo), as long as I write to and read from using
either 32-bit Cygwin or 64-bit Cygwin, all works fine, but if I write with either
one and read with the other, both processes hang.

It doesn't seem to matter whether the fifo was created under 32-bit or
64-bit, the problem (if I may be so bold as to call it that) seems only with
mixing 32-/64-bit versions doing I/O to/from it.

FWIW, using 32-bit version 1.7.29-2 and 64-bit version 1.7.30-1.

-Ken Nellis

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