Trait Token 

pub trait Token: Send + Sync {
    // Required method
    fn check(&self) -> Result<(), Cancelled>;
}

A trait for an arbitrary cancellation token. Use (), if you don’t have any cancellation token.

Required Methods

fn check(&self) -> Result<(), Cancelled>

Returns Cancelled, if the operation has been cancelled.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Token for ()

fn check(&self) -> Result<(), Cancelled>

Implementors