There is a snippet in Programming the Perl DBI. I'm not sure how up-to-date that is, but you may try:

my $db = tie %hash, 'DB_File', ...;

my $fd = $db->fd();
open my $handle, "+<&=$fd" or die ...

flock $handle, LOCK_WHATEVER;

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In reply to Re: How to apply flock by fruiture
in thread How to apply flock by kiat

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