2 /* -----------------------------------------------------------------------
3 * <copyright file="JobQueue.cs" company="GRNet">
5 * Copyright 2011-2012 GRNET S.A. All rights reserved.
7 * Redistribution and use in source and binary forms, with or
8 * without modification, are permitted provided that the following
11 * 1. Redistributions of source code must retain the above
12 * copyright notice, this list of conditions and the following
15 * 2. Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer in the documentation and/or other materials
18 * provided with the distribution.
21 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
22 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
25 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
28 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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39 * -----------------------------------------------------------------------
42 using System.Collections.Concurrent;
43 using System.Threading;
44 using System.Threading.Tasks;
49 using System.Collections.Generic;
54 /// TODO: Update summary.
58 private readonly BlockingCollection<Action> _statusUpdateQueue = new BlockingCollection<Action>();
59 private CancellationToken _cancellationToken;
62 public void Start(CancellationToken token)
64 _cancellationToken = token;
65 Task.Factory.StartNew(ProcessUpdates, _cancellationToken);
68 private void ProcessUpdates()
70 foreach (var action in _statusUpdateQueue.GetConsumingEnumerable())
76 public void Add(Action action)
78 _statusUpdateQueue.Add(action);
83 _statusUpdateQueue.CompleteAdding();
88 public class JobAgent:Agent<Action>
90 protected JobAgent(Action<Agent<Action>> action)
96 public static JobAgent Create()
98 return (JobAgent)Start(queue =>
103 var job = queue.Receive();
104 job.ContinueWith(t =>
106 t.IgnoreExceptions();
107 var action = job.Result;