# Libtmux_unix.Cancellation.cancel

- **Module:** Libtmux_unix
- **Package:** libtmux-unix
- **Language:** OCaml
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-ocaml/blob/205dfda49742592b479247049d186956e4a4cfe9/unix/libtmux_unix.mli#L73
- **Public owner:** Libtmux_unix
- **Page:** https://libtmux.org/en/ocaml/latest/reference/libtmux_unix-cancellation-cancel/

```
val cancel : t -> unit
```

Wake waiters. Safe from another domain or systhread, but not from a signal handler. Repeated calls and calls after scope exit have no effect.

## Parameters

- `arg1` (`t`)