Re^3: PERL issues a "lock can only be used on shared values" when locking a shared hash

[Anonymous Monk]

.... Seriously.

so you've read threads::shared? Cause it gives examples

You cannot lock the individual elements of a container variable:

    my %hash :shared;
    $hash{'foo'} = 'bar';
    #lock($hash{'foo'}); # Error
    lock(%hash); # Works

lock follows references exactly one level:

    my %hash :shared;
    my $ref = \%hash;
    lock($ref); # This is equivalent to lock(%hash)

lock %{ $uber_hashRef{'%y'} };

is like my $ref = $uber_hashRef{'%y'}; lock $ref;

is like my $ref = $uber_hashRef{'%y'}; lock %$ref;