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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
// =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
//
// INotifyCompletion.cs
//
// <OWNER>stoub</OWNER>
//
// Interfaces used to represent instances that notify listeners of their completion via continuations.
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
using System;
using System.Security;
namespace System.Runtime.CompilerServices
{
/// <summary>
/// Represents an operation that will schedule continuations when the operation completes.
/// </summary>
public interface INotifyCompletion
{
/// <summary>Schedules the continuation action to be invoked when the instance completes.</summary>
/// <param name="continuation">The action to invoke when the operation completes.</param>
/// <exception cref="System.ArgumentNullException">The <paramref name="continuation"/> argument is null (Nothing in Visual Basic).</exception>
void OnCompleted(Action continuation);
}
/// <summary>
/// Represents an awaiter used to schedule continuations when an await operation completes.
/// </summary>
public interface ICriticalNotifyCompletion : INotifyCompletion
{
/// <summary>Schedules the continuation action to be invoked when the instance completes.</summary>
/// <param name="continuation">The action to invoke when the operation completes.</param>
/// <exception cref="System.ArgumentNullException">The <paramref name="continuation"/> argument is null (Nothing in Visual Basic).</exception>
/// <remarks>Unlike OnCompleted, UnsafeOnCompleted need not propagate ExecutionContext information.</remarks>
[SecurityCritical]
void UnsafeOnCompleted(Action continuation);
}
}
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