// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
 
using System.Threading.Tasks;
 
namespace System.ServiceModel.Channels
{
    public interface IDuplexSession : IInputSession, IOutputSession
    {
        void CloseOutputSession();
        void CloseOutputSession(TimeSpan timeout);
        IAsyncResult BeginCloseOutputSession(AsyncCallback callback, object state);
        IAsyncResult BeginCloseOutputSession(TimeSpan timeout, AsyncCallback callback, object state);
        void EndCloseOutputSession(IAsyncResult result);
    }
 
    internal interface IAsyncDuplexSession : IInputSession, IOutputSession
    {
        Task CloseOutputSessionAsync();
        Task CloseOutputSessionAsync(TimeSpan timeout);
    }
}