From: Gary Wright <gwtmp01@...>
Date: 2010-01-11T09:42:54+09:00
Subject: Re: Non-blocking communication between Ruby processes


On Jan 10, 2010, at 11:17 AM, Iņaki Baz Castillo wrote:
> 
> I tested it (in ruby) by sending strings of 10 bytes size from various 
> processes to a shared pipe. The reader gets the strings mixed :)
> However this doesn't occur with posix message queues.

I just tried this on Mac OS X using threads and using forks to write to
a shared pipe.  Each write was 256 bytes done using syswrite.  All the
reads on the other end were: sysread(256).  I tried using forked writers
and simple Ruby threads.  Each writer wrote 10000 messages and I didn't
get any mixed up data in any of my tests.  I also tried using plain
old write (vs. syswrite) and still didn't get any mixed up data.

The behavior you described just doesn't match my experience or
understanding of pipes.

Gary Wright