Hi bobf,
I’ve not used this module before, but in playing around with your code I’ve made the following observations:
(1) Your results are duplicated on my system, which is Strawberry Perl 5.14.2 running on Vista 32-bit.
(2) If I add a call to Data::Dumper like so:
use Data::Dumper;
...
{
my $db = DBM::Deep->new( $db_file );
$db->{key} = {};
print "Dump: ", Dumper($db);
}
then href_nocopy fails with the same permission denied error as for href_copy.
(3) If I add $db->clear(); before the call to unlink, the permission denied errors go away:
use strict;
use warnings;
use DBM::Deep;
use Data::Dumper;
use constant DUMP => 0; # 1 for debugging
{
my $db_file = 'href_nocopy';
{
my $db = DBM::Deep->new( $db_file );
$db->{key} = {};
print "Dump: ", Dumper($db) if DUMP;
$db->clear();
}
print "\nDeleting $db_file\n";
unlink( $db_file ) or warn $!; # succeeds
$db_file = 'href_copy';
{
my $db = DBM::Deep->new( $db_file );
$db->{key} = {};
my $db2 = $db->{key};
print "\nDump: ", Dumper($db) if DUMP;
print "Dump: ", Dumper($db2) if DUMP;
$db->clear();
}
print "\nDeleting $db_file\n";
unlink( $db_file ) or warn $!; # now succeeds!
$db_file = 'nonref_copy';
{
my $db = DBM::Deep->new( $db_file );
$db->{key} = 1;
my $db2 = $db->{key};
print "\nDump: ", Dumper($db) if DUMP;
print "Dump: ", Dumper($db2) if DUMP;
$db->clear();
}
print "\nDeleting $db_file\n";
unlink( $db_file ) or warn $!; # succeeds
}
I don’t know what is going on, but maybe the above observations will help?
Regards,
Athanasius <°(((>< contra mundum
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