---
name: "File::Flock::Forking"
section: "3pm"
platform: "linux"
package: "libfile-flock-perl"
version: "2014.01-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/File::Flock::Forking"
---

# File::Flock::Forking(3pm)

## NAME

```
 File::Flock::Forking - adjust File::Flock to handle fork()
```

## SYNOPSIS

```
 use File::Flock::Forking;
 use File::Flock;
```

## DESCRIPTION

The purpose of File::Flock::Forking is to change the implementation of File::Flock to handle locking on systems that do not hold locks across calls to **fork()**.

If you are using File::Flock or any module that uses File::Flock then and your program uses **fork()**, then you should import File::Flock::Forking before you import File::Flock or any module that uses File::Flock.

On most operating systems, File::Flock::Forking does nothing.  On Solaris, it changes the behavior of File::Flock to be implemented by File::Flock::Subprocess.

You can also force it to use FIle::Flock::Subprocess by with

```
        $ENV{FLOCK_FORKING_USE} = 'subprocess'
```

Or force it to use File::Flock with

```
        $ENV{FLOCK_FORKING_USE} = 'flock'
```

## LICENSE

Copyright (C) 2013 Google, Inc. This module may be used/copied/etc on the same terms as Perl itself.