You could extend F::CF to support zeroing out the counter.
Something like...
package File::CounterFile::Resettable;
use base qw( File::CounterFile );
sub reset
{
my($self) = @_;
if ($self->locked) {
$self->{'value'} = 0;
$self->{updated} = 1;
} else {
$self->lock;
$self->{'value'} = 0;
$self->{updated} = 1;
$self->unlock;
}
$self->{'value'}; # return value
}
...and then later in your script...
my $count = File::CounterFile::Resettable->new("./asr_counter.txt");
$count->lock();
$count->reset();
$count->unlock();
(Code is untested, but you hopefully get the idea!)
Update: $code =~ s/\t/ /g; # for readability.
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