Devel::GlobalDestruction − Provides function returning the equivalent of "${ˆGLOBAL_PHASE} eq 'DESTRUCT'" for older perls.
package Foo;
use Devel::GlobalDestruction;
use namespace::clean; # to avoid having an
"in_global_destruction" method
sub DESTROY {
return if in_global_destruction;
do_something_a_little_tricky();
}
Perl’s global destruction is a little tricky to deal with WRT finalizers because it’s not ordered and objects can sometimes disappear.
Writing defensive destructors is hard and annoying, and usually if global destruction is happening you only need the destructors that free up non process local resources to actually execute.
For these constructors you can avoid the mess by simply bailing out if global destruction is in effect.
This module uses
Sub::Exporter::Progressive so the exports may be renamed,
aliased, etc. if Sub::Exporter is present.
in_global_destruction
Returns true if the interpreter is in global destruction. In perl 5.14+, this returns "${ˆGLOBAL_PHASE} eq 'DESTRUCT'", and on earlier perls, detects it using the value of "PL_main_cv" or "PL_dirty".
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 (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.