# LibTmux::Async::X::Closed

- **Module:** LibTmux::Async::X
- **Package:** LibTmux-Async
- **Language:** Perl
- **Kind:** exception
- **Source:** https://github.com/libtmux/libtmux-perl/blob/352715a4fa66a96eed7763b90daaa536aa2f121d/packages/async/lib/LibTmux/Async/X.pm#L8
- **Page:** https://libtmux.org/en/perl/latest/reference/libtmux-async-x-closed/

```
package LibTmux::Async::X::Closed;
```

Shutdown has started and new work is refused. Callers may still observe cleanup through [`"close" in LibTmux::Async::Transport`](/en/perl/latest/reference/libtmux-async-transport-close/).