I wan't sure about the autoflush, but I've tried it with and without all to no avail. Out of interest, wouldn't 
select(PIPE); $| = 1;

[download]
work? fwiw as it's in a loop, wouldn't the second iteration turn it on?
I digress...
I don't understand your last paragraph. Could you explain it please?

In reply to Re^2: IPC via named pipes, losing some messages by ftumsh
in thread IPC via named pipes, losing some messages by ftumsh

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