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source: trunk/sources/HeuristicLab.Grid/EngineRunner.cs @ 983

Last change on this file since 983 was 766, checked in by gkronber, 16 years ago

fixed #362 (GridClient doesn't work since the change to use major.minor version-numbers for plugins)

File size: 2.3 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21using System;
22using System.Collections.Generic;
23using System.Linq;
24using System.Text;
25using HeuristicLab.Core;
26using System.Threading;
27using HeuristicLab.PluginInfrastructure;
28using System.Reflection;
29
30namespace HeuristicLab.Grid {
31  internal class EngineRunner: MarshalByRefObject {
32    private ManualResetEvent engineFinished = new ManualResetEvent(false);
33
34    internal byte[] Execute(byte[] engine) {
35      ProcessingEngine currentEngine = (ProcessingEngine)PersistenceManager.RestoreFromGZip(engine);
36      engineFinished.Reset();
37      currentEngine.Finished += new EventHandler(currentEngine_Finished);
38      currentEngine.Execute();
39     
40      engineFinished.WaitOne();
41           
42      // if the engine was stopped because of an error (not suspended because of a breakpoint)
43      // it's not necessary to return the whole engine
44      // instead just return an empty engine that has the aborted flag set
45      if(currentEngine.Canceled && !currentEngine.Suspended) {
46        currentEngine.Reset();
47        currentEngine.OperatorGraph.Clear();
48        currentEngine.Abort();
49      }
50
51      if(!currentEngine.Canceled && !currentEngine.Suspended) {
52        currentEngine.OperatorGraph.Clear();
53        currentEngine.GlobalScope.Clear();
54      }
55
56      return PersistenceManager.SaveToGZip(currentEngine);
57    }
58
59    void currentEngine_Finished(object sender, EventArgs e) {
60      engineFinished.Set();
61    }
62  }
63}
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