base-scheduler 0.3.0

Explicit, runtime-independent scheduler capabilities for protocol libraries
Documentation 
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// Released under the MIT License.
// Copyright, 2026, by Samuel Williams.

use std::fmt;

/// An operation observed a cooperative cancellation request.
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub struct Cancelled;

impl fmt::Display for Cancelled {
    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
        formatter.write_str("operation cancelled")
    }
}

impl std::error::Error for Cancelled {}