Take me over?
NAME
Devel::GlobalDestruction - Provides function returning the equivalent of ${^GLOBAL_PHASE} eq 'DESTRUCT'
for older perls.
SYNOPSIS
package Foo;
use Devel::GlobalDestruction;
use namespace::clean; # to avoid having an "in_global_destruction" method
sub DESTROY {
return if in_global_destruction;
do_something_a_little_tricky();
}
DESCRIPTION
Perl's global destruction is a little tricky to deal with WRT finalizers because it's not ordered and objects can sometimes disappear.
Writing defensive destructors is hard and annoying, and usually if global destruction is happening you only need the destructors that free up non process local resources to actually execute.
For these constructors you can avoid the mess by simply bailing out if global destruction is in effect.
EXPORTS
This module uses Sub::Exporter::Progressive so the exports may be renamed, aliased, etc. if Sub::Exporter is present.
- in_global_destruction
-
Returns true if the interpreter is in global destruction. In perl 5.14 , this returns
${^GLOBAL_PHASE} eq 'DESTRUCT'
, and on earlier perls, detects it using the value ofPL_main_cv
orPL_dirty
.
AUTHORS
Yuval Kogman <[email protected]>
Florian Ragwitz <[email protected]>
Jesse Luehrs <[email protected]>
Peter Rabbitson <[email protected]>
Arthur Axel 'fREW' Schmidt <[email protected]>
Elizabeth Mattijsen <[email protected]>
Greham Knop <[email protected]>
COPYRIGHT
Copyright (c) 2008 Yuval Kogman. All rights reserved
This program is free software; you can redistribute
it and/or modify it under the same terms as Perl itself.