I am getting an error message (select: Bad file descriptor) when attempting to use a bit vector (formed with vec) and select to scan for open file descriptors/network connections to be read from.

If I did the following, it doesn't complain: 
$fdvec = '';

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Adding a file descriptor to the bit vector: 
vec($fdvec, $fh->fileno, 1) = 1;

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And selecting/polling for ready descriptors: 
$ready = select ($rout = $fdvec, undef, undef, $timeout);

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If I convert all of the above to a hash ref, i.e. 
$fdvec ====> $this->{fdvec}

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Then I'm getting the error message. Is there something about using the hash ref with vec or select that is an issue?

In reply to Using vec/select with a hash ref by Anonymous Monk

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