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annotate Framework/Messages/IObserver.cpp @ 1276:db759fb1d6e6 bugs/2020-02-invisible-slice

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Added debug message if observer invalid
author Benjamin Golinvaux <bgo@osimis.io>
date Tue, 04 Feb 2020 12:31:22 +0100
parents 2d8ab34c8c91
children
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero 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 Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "IObserver.h"
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23
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24 #include "IMessage.h"
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25 #include "../StoneException.h"
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26
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27 #include <Core/Logging.h>
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28 #include <Core/Toolbox.h>
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29
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30 namespace OrthancStone
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31 {
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32 static const uint64_t IObserver_FIRST_UNIQUE_ID = 10973;
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33 static uint64_t IObserver_nextUniqueId = IObserver_FIRST_UNIQUE_ID;
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34
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35 IObserver::IObserver(MessageBroker& broker)
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36 : broker_(broker)
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37 {
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38 AssignFingerprint();
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39 broker_.Register(*this);
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40 }
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41
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42 IObserver::~IObserver()
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43 {
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44 try
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45 {
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46 LOG(TRACE) << "IObserver(" << std::hex << this << std::dec << ")::~IObserver : fingerprint_[0] == " << fingerprint_[0];
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47 fingerprint_[0] = 0xdeadbeef;
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48 fingerprint_[1] = 0xdeadbeef;
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49 fingerprint_[2] = 0xdeadbeef;
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50 broker_.Unregister(*this);
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51 }
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52 catch (const Orthanc::OrthancException& e)
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53 {
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54 if (e.HasDetails())
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55 {
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56 LOG(ERROR) << "OrthancException in ~IObserver: " << e.What() << " Details: " << e.GetDetails();
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57 }
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58 else
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59 {
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60 LOG(ERROR) << "OrthancException in ~IObserver: " << e.What();
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61 }
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62 }
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63 catch (const std::exception& e)
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64 {
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65 LOG(ERROR) << "std::exception in ~IObserver: " << e.what();
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66 }
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67 catch (...)
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68 {
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69 LOG(ERROR) << "Unknown exception in ~IObserver";
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70 }
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71 }
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72
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73 static const int64_t IObserver_UNIQUE_ID_MAGIC_NUMBER = 2742024;
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74
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75 void IObserver::AssignFingerprint()
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76 {
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77 fingerprint_[0] = IObserver_nextUniqueId;
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78 fingerprint_[1] = fingerprint_[0] / 2;
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79 fingerprint_[2] = fingerprint_[1] + IObserver_UNIQUE_ID_MAGIC_NUMBER;
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80 IObserver_nextUniqueId++;
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81 }
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82
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83 bool IObserver::DoesFingerprintLookGood() const
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84 {
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85 bool ok = (fingerprint_[0] >= IObserver_FIRST_UNIQUE_ID) &&
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86 (fingerprint_[1] == fingerprint_[0] / 2) &&
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87 (fingerprint_[2] == fingerprint_[1] + IObserver_UNIQUE_ID_MAGIC_NUMBER);
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88 if(!ok)
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89 {
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90 LOG(INFO) << "Fingerprint not valid: " << " fingerprint_[0] = " << fingerprint_[0] << " fingerprint_[1] = " << fingerprint_[1]<< " fingerprint_[2] = " << fingerprint_[2];
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91 }
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92 return ok;
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93 }
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94 }