reactive/Rx.NET/Source/System.Reactive.Interfaces/Reactive/Disposables/ICancelable.cs

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the Apache 2.0 License.
// See the LICENSE file in the project root for more information. 

namespace System.Reactive.Disposables
{
    /// <summary>
    /// Disposable resource with disposal state tracking.
    /// </summary>
    public interface ICancelable : IDisposable
    {
        /// <summary>
        /// Gets a value that indicates whether the object is disposed.
        /// </summary>
        bool IsDisposed { get; }
    }
}