Devel::GlobalDestruction - Provides function returning the equivalent of ${^GLOBAL_PHASE} eq 'DESTRUCT' for older perls.
${^GLOBAL_PHASE} eq 'DESTRUCT'
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(); }
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.
This module uses Sub::Exporter::Progressive so the exports may be renamed, aliased, etc. if Sub::Exporter is present.
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 of PL_main_start or PL_dirty.
PL_main_start
PL_dirty
Yuval Kogman <nothingmuch@woobling.org>
Florian Ragwitz <rafl@debian.org>
Jesse Luehrs <doy@tozt.net>
Peter Rabbitson <ribasushi@cpan.org>
Arthur Axel 'fREW' Schmidt <frioux@gmail.com>
Elizabeth Mattijsen <liz@dijkmat.nl>
Greham Knop <haarg@haarg.org>
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.
To install Devel::GlobalDestruction, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Devel::GlobalDestruction
CPAN shell
perl -MCPAN -e shell install Devel::GlobalDestruction
For more information on module installation, please visit the detailed CPAN module installation guide.