# phpman > perldoc > Test2::IPC

## NAME
    [Test2::IPC](https://www.chedong.com/phpMan.php/perldoc/Test2%3A%3AIPC/markdown) - Turn on IPC for threading or forking support.

## SYNOPSIS
    You should "use [Test2::IPC](https://www.chedong.com/phpMan.php/perldoc/Test2%3A%3AIPC/markdown);" as early as possible in your test file. If you import this module
    after API initialization it will attempt to retrofit IPC onto the existing hubs.

  DISABLING IT
    You can use "no [Test2::IPC](https://www.chedong.com/phpMan.php/perldoc/Test2%3A%3AIPC/markdown);" to disable IPC for good. You can also use the T2_NO_IPC env var.

## EXPORTS
    All exports are optional.

### cull
        Cull allows you to collect results from other processes or threads on demand.

## SOURCE
    The source code repository for Test2 can be found at <http://github.com/Test-More/test-more/>.

## MAINTAINERS
    Chad Granum <<exodist@cpan.org>>

## AUTHORS
    Chad Granum <<exodist@cpan.org>>

## COPYRIGHT
    Copyright 2020 Chad Granum <<exodist@cpan.org>>.

    This program is free software; you can redistribute it and/or modify it under the same terms as
    Perl itself.

    See <http://dev.perl.org/licenses/>