Synnefo » Pithos MS Client

// -----------------------------------------------------------------------

// <copyright file="JobQueue.cs" company="Microsoft">

// TODO: Update copyright text.

// </copyright>

// -----------------------------------------------------------------------

using System.Collections.Concurrent;

using System.Threading;

using System.Threading.Tasks;

namespace Pithos.Core

{

    using System;

    using System.Collections.Generic;

    using System.Linq;

    using System.Text;

    /// <summary>

    /// TODO: Update summary.

    /// </summary>

    public class JobQueue

    {

        private readonly BlockingCollection<Action> _statusUpdateQueue = new BlockingCollection<Action>();

        private CancellationToken _cancellationToken;

        public void Start(CancellationToken token)

        {

            _cancellationToken = token;

            Task.Factory.StartNew(ProcessUpdates, _cancellationToken);

        }

        private void ProcessUpdates()

        {

            Parallel.ForEach(_statusUpdateQueue.GetConsumingEnumerable(),

                new ParallelOptions{MaxDegreeOfParallelism=1,CancellationToken=_cancellationToken},  

                action => action());

            foreach (var action in _statusUpdateQueue.GetConsumingEnumerable())

            {

                action();

            }

        }

        public void Add(Action action)

        {

            _statusUpdateQueue.Add(action);

        }

        public void Stop()

        {

            _statusUpdateQueue.CompleteAdding();

        }

    }

}