NAME¶

Devel::GlobalDestruction - Expose the flag which marks global destruction.

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 happenning 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 so the exports may be renamed, aliased, etc.

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, it returns the current value of "PL_dirty".

AUTHORS¶

Yuval Kogman <nothingmuch@woobling.org> Florian Ragwitz <rafl@debian.org> Jesse Luehrs <doy@tozt.net> Peter Rabbitson <ribasushi@cpan.org>

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.