From: Lennon Day-Reynolds <rcoder@...>
Date: 2004-06-17T11:43:07+09:00
Subject: Re: Bidirectional named pipes on Linux

Actually, since it sounded like Phil was trying to force the writer to
wait for the reader, my assumption was that he wanted to force
blocking writes.

After a bit more experimentation, though, the problem looks like it is
probably caused by buffering, rather than async writes. You could try
or'ing the O_SYNC to the flags for your open() call, or adding it
after the fact with fcntl().

Lennon