# libtmux:cancellation-token

- **Package:** libtmux
- **Language:** Common Lisp
- **Kind:** class
- **Source:** https://github.com/libtmux/libtmux-lisp/blob/c2e5fc4ed3befda21f45dfa5d5868c38fd138311/src/transport.lisp#L68
- **Public owner:** libtmux
- **Bases:** `common-lisp:standard-object`
- **Page:** https://libtmux.org/en/lisp/latest/reference/libtmux-cancellation-token/

One-way cancellation state; idle tokens own no OS descriptors.