#region
/* -----------------------------------------------------------------------
*
*
* Copyright 2011-2012 GRNET S.A. All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
*
* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and
* documentation are those of the authors and should not be
* interpreted as representing official policies, either expressed
* or implied, of GRNET S.A.
*
* -----------------------------------------------------------------------
*/
#endregion
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
using System.Threading;
using System.Threading.Async;
using System.Threading.Tasks;
using Pithos.Core.Agents;
namespace Pithos.Core
{
public class Agent : IDisposable
{
private readonly ConcurrentQueue _queue;
//private readonly AsyncCollection _messages;
private readonly AsyncCollection _messages;
private readonly CancellationTokenSource _cancelSource = new CancellationTokenSource();
public CancellationToken CancellationToken;
private readonly Action> _process;
public Agent(Action> action)
{
_queue=new ConcurrentQueue();
_messages = new AsyncCollection(_queue);
_process = action;
CancellationToken = _cancelSource.Token;
}
public bool IsEmpty
{
get { return _queue.IsEmpty; }
}
public void Post(TMessage message)
{
_messages.Add(message);
}
ConcurrentDictionary> _awaiters=new ConcurrentDictionary>();
public Task PostAndAwait(TMessage message)
{
var tcs = new TaskCompletionSource