1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Collections.Generic;
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24 | using System.Linq;
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25 | using System.Text;
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26 | using System.Timers;
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27 | using HeuristicLab.Hive.Slave.Common;
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28 | using HeuristicLab.Hive.Slave.Communication;
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29 | using System.Diagnostics;
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30 | using HeuristicLab.Hive.Contracts.BusinessObjects;
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31 | using HeuristicLab.Hive.Contracts;
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32 | using HeuristicLab.Hive.Slave.Core.ConfigurationManager;
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33 | using HeuristicLab.Hive.Slave.Communication.ServerService;
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34 | using HeuristicLab.Tracing;
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35 | using System.Threading;
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36 | //using BO = HeuristicLab.Hive.Contracts.BusinessObjects;
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37 |
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38 | namespace HeuristicLab.Hive.Slave.Core {
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39 | /// <summary>
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40 | /// Heartbeat class. It sends every x ms a heartbeat to the server and receives a Message
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41 | /// </summary>
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42 | public class Heartbeat {
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43 |
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44 | private bool offline;
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45 |
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46 | public TimeSpan Interval { get; set; }
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47 |
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48 | private Thread heartBeatThread;
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49 |
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50 | private static object locker = new object();
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51 |
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52 | public Heartbeat() {
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53 | Interval = new TimeSpan(0,0,10);
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54 | }
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55 |
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56 | public Heartbeat(TimeSpan interval) {
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57 | Interval = interval;
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58 | }
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59 |
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60 | private WcfService wcfService;
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61 |
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62 | private bool abortThreadPending;
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63 |
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64 | /// <summary>
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65 | /// Starts the Heartbeat signal.
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66 | /// </summary>
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67 | public void StartHeartbeat() {
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68 | wcfService = WcfService.Instance;
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69 | wcfService.ProcessHeartBeatCompleted += new EventHandler<ProcessHeartBeatCompletedEventArgs>(wcfService_ProcessHeartBeatCompleted);
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70 | abortThreadPending = false;
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71 | heartBeatThread = GetHeartBeatThread();
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72 | heartBeatThread.Start();
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73 | }
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74 |
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75 | private Thread GetHeartBeatThread() {
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76 | return new Thread(() => {
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77 | while (!abortThreadPending) {
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78 | lock (locker) {
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79 | // check if cwfService is disconnected for any reason (should happen at first heartbeat)
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80 | // [chn] TODO: Client should always send heartbeats. when calendar disallows he should tell the server he does not want to compute anything
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81 | if (wcfService.ConnState == NetworkEnum.WcfConnState.Disconnected) {
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82 | wcfService.Connect();
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83 | }
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84 |
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85 | if (wcfService.ConnState == NetworkEnum.WcfConnState.Loggedin) {
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86 |
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87 | // client is allowed to calculate stuff
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88 | ClientDto info = ConfigManager.Instance.GetClientInfo();
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89 |
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90 | HeartBeatData heartBeatData = new HeartBeatData {
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91 | SlaveId = info.Id,
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92 | FreeCores = info.NrOfCores - ConfigManager.Instance.GetUsedCores(),
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93 | FreeMemory = GetFreeMemory(),
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94 | JobProgress = ConfigManager.Instance.GetProgressOfAllJobs(),
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95 | IsAllowedToCalculate = UptimeManager.Instance.IsOnline() && UptimeManager.Instance.CalendarAvailable
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96 | };
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97 |
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98 | if (!heartBeatData.IsAllowedToCalculate) {
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99 | // stop all running jobs and send snapshots to server
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100 | MessageQueue.GetInstance().AddMessage(MessageContainer.MessageType.UptimeLimitDisconnect);
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101 | }
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102 |
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103 | Logger.Debug("Sending Heartbeat: " + heartBeatData);
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104 | wcfService.ProcessHeartBeatAsync(heartBeatData);
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105 | }
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106 |
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107 | } // lock
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108 | Thread.Sleep(Interval);
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109 | } // while
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110 | abortThreadPending = false;
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111 | });
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112 | }
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113 |
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114 | private int GetFreeMemory() {
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115 | PerformanceCounter counter = new PerformanceCounter("Memory", "Available Bytes", true);
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116 | int mb = (int)(counter.NextValue() / 1024 / 1024);
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117 | return mb;
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118 | }
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119 |
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120 | void wcfService_ProcessHeartBeatCompleted(object sender, ProcessHeartBeatCompletedEventArgs e) {
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121 | Logger.Debug("Heartbeat Response received");
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122 | e.Result.ActionRequest.ForEach(mc => MessageQueue.GetInstance().AddMessage(mc));
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123 | }
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124 |
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125 | public void StopHeartBeat() {
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126 | abortThreadPending = true;
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127 | }
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128 | }
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129 | }
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