view Implab/IDeferred.cs @ 151:ec91a6dfa5b3 v2

Added support for 'await' operator to promises
author cin
date Thu, 04 Feb 2016 02:43:05 +0300
parents 706fccb85524
children fa6cbf4d8841
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line source

using System;

namespace Implab {
    /// <summary>
    /// Deferred result, usually used by asynchronous services as the service part of the promise.
    /// </summary>
    public interface IDeferred : ICancellationToken {

        void Resolve();

        /// <summary>
        /// Reject the promise with the specified error.
        /// </summary>
        /// <param name="error">The reason why the promise is rejected.</param>
        /// <remarks>
        /// Some exceptions are treated in a special case: 
        /// <see cref="OperationCanceledException"/> is interpreted as call to <see cref="Cancel()"/> method,
        /// and <see cref="PromiseTransientException"/> is always unwrapped and its
        /// <see cref="PromiseTransientException.InnerException"> is used as the reason to reject promise.
        /// </remarks>
        void Reject(Exception error);
    }
}