| Devel-GlobalDestruction documentation | Contained in the Devel-GlobalDestruction distribution. |
Devel::GlobalDestruction - Expose PL_dirty, the flag which marks global destruction.
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 so the exports may be renamed, aliased, etc.
Returns the current value of PL_dirty.
This module is maintained using Darcs. You can get the latest version from
http://nothingmuch.woobling.org/code, and use darcs send to commit
changes.
Yuval Kogman <nothingmuch@woobling.org>
Florian Ragwitz <rafl@debian.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.
| Devel-GlobalDestruction documentation | Contained in the Devel-GlobalDestruction distribution. |
#!/usr/bin/perl package Devel::GlobalDestruction; use strict; use warnings; use XSLoader; our $VERSION = '0.03'; use Sub::Exporter -setup => { exports => [ qw(in_global_destruction) ], groups => { default => [ -all ] }, }; if ($] >= 5.013007) { eval 'sub in_global_destruction () { ${^GLOBAL_PHASE} eq q[DESTRUCT] }'; } else { XSLoader::load(__PACKAGE__, $VERSION); } __PACKAGE__ __END__