# phpman > man > Test2::IPC::Driver::Files

## NAME
    [Test2::IPC::Driver::Files](https://www.chedong.com/phpMan.php/perldoc/Test2%3A%3AIPC%3A%3ADriver%3A%3AFiles/markdown) - Temp dir + Files concurrency model.

## DESCRIPTION
    This is the default, and fallback concurrency model for Test2. This sends events between
    processes and threads using serialized files in a temporary directory. This is not particularly
    fast, but it works everywhere.

## SYNOPSIS
        use [Test2::IPC::Driver::Files](https://www.chedong.com/phpMan.php/perldoc/Test2%3A%3AIPC%3A%3ADriver%3A%3AFiles/markdown);

        # IPC is now enabled

## ENVIRONMENT VARIABLES
    T2_KEEP_TEMPDIR=0
        When true, the tempdir used by the IPC driver will not be deleted when the test is done.

    T2_TEMPDIR_TEMPLATE='test2-XXXXXX'
        This can be used to set the template for the IPC temp dir. The template should follow
        template specifications from [File::Temp](https://www.chedong.com/phpMan.php/perldoc/File%3A%3ATemp/markdown).

## SEE ALSO
    See [Test2::IPC::Driver](https://www.chedong.com/phpMan.php/perldoc/Test2%3A%3AIPC%3A%3ADriver/markdown) for methods.

## 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/>