---
name: "APR::OS"
section: "3pm"
platform: "linux"
package: "libapache2-mod-perl2"
version: "2.0.13-2+b2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/APR::OS"
---

# APR::OS(3pm)

Perl API for Platform-specific APR API

## NAME

APR::OS - Perl API for Platform-specific APR API

## Synopsis

```
  use APR::OS ();

  # get current thread id
  my $tid = APR::OS::current_thread_id();
```

## Description

`"APR::OS"` provides the Perl interface to platform-specific APR API.

You should be extremely careful when relying on any of the API provided by this module, since they are no portable. So if you use those you application will be non-portable as well.

## API

`"APR::OS"` provides the following methods:

### "current\_thread\_id"

Get the current thread ID

```
  $tid = APR::OS::current_thread_id();
```

- ret: $tid ( integer )

  under threaded MPMs returns the current thread ID, otherwise 0.

- since: 2.0.00

  Example:

```
    use Apache2::MPM ();
    use APR::OS ();
    if (Apache2::MPM->is_threaded) {
        my $tid_obj = APR::OS::current_thread_id();
        print "TID: $tid";
    }
    else {
        print "PID: $$";
    }
```

## See Also

mod\_perl 2.0 documentation.

## Copyright

mod\_perl 2.0 and its core modules are copyrighted under The Apache Software License, Version 2.0.

## Authors

The mod\_perl development team and numerous contributors.