If a copy was not made, by the time the reader got a hold of (what?: a reference to) the hash, the feeder will have already overwritten it with the next record. Or worse, partially overwritten it.
I understand that. But if I do something like: 
sub WorkerThread {
    while ( $element = $wq->dequeue ) {
        $hashref = DoWork($element);
        $qq->enqueue( $hashref );
    }
}
sub DoWork{
    my %hash
    .....
    return \%hash;
}

[download]

Why is the my %hash not doing the trick. It should be new hash-reference every time DoWork() is called. Do I miss something?

In reply to Re^2: passing hashes between threads by bago
in thread passing hashes between threads by bago

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