Actually if you RTFS a little more carefully you will see that 1) it never sorts the list (ever) 2) the only thing that gets sorted is the priorities array (which consists only of the n priority levels present) and 3) the only time it does this sort is when either a new (previously unknown) priority level is added or a priority level needs to be deleted as there are no more items of this priority present in the heap. It checks for the presence of a priority level via a hash key (rather than searching the whole priority array as a further speed hack..... 

sub add {
   # blah
   unless (exists $self->{'.queue'}->{$priority}) {
       $self->{'.queue'}->{$priority} = ();
       $self->_sort_priorities;
   }

[download]

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print

In reply to Re: Re: Re: Re: looking for a Priority Queue by tachyon
in thread looking for a Priority Queue by newatperl

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