Mercurial > hg > orthanc

annotate Core/DicomNetworking/TimeoutDicomConnectionManager.h @ 3985:cb801e5b4411

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clarifying embedded resources
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 29 May 2020 10:14:26 +0200
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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 General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #pragma once
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35
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36 #if !defined(ORTHANC_ENABLE_DCMTK_NETWORKING)
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37 # error The macro ORTHANC_ENABLE_DCMTK_NETWORKING must be defined
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38 #endif
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39
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40 #if ORTHANC_ENABLE_DCMTK_NETWORKING != 1
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41 # error The macro ORTHANC_ENABLE_DCMTK_NETWORKING must be 1 to use this file
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42 #endif
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43
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44
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45 #include "../Compatibility.h"
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46 #include "DicomStoreUserConnection.h"
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47
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48 #include <boost/date_time/posix_time/posix_time.hpp>
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49 #include <boost/thread/mutex.hpp>
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51 namespace Orthanc
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52 {
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53 /**
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54 * This class corresponds to a singleton to a DICOM SCU connection.
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55 **/
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56 class TimeoutDicomConnectionManager : public boost::noncopyable
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57 {
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58 private:
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59 boost::mutex mutex_;
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60 std::unique_ptr<DicomStoreUserConnection> connection_;
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61 boost::posix_time::ptime lastUse_;
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62 boost::posix_time::time_duration timeout_;
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63
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64 // Mutex must be locked
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65 void TouchInternal();
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66
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67 // Mutex must be locked
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68 void OpenInternal(const std::string& localAet,
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69 const RemoteModalityParameters& remote);
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70
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71 // Mutex must be locked
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72 void CloseInternal();
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73
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74 public:
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75 class Lock : public boost::noncopyable
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76 {
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77 private:
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78 TimeoutDicomConnectionManager& that_;
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79 boost::mutex::scoped_lock lock_;
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80
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81 public:
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82 Lock(TimeoutDicomConnectionManager& that,
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83 const std::string& localAet,
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84 const RemoteModalityParameters& remote);
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85
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86 ~Lock();
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87
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88 DicomStoreUserConnection& GetConnection();
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89 };
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90
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91 TimeoutDicomConnectionManager() :
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92 timeout_(boost::posix_time::milliseconds(1000))
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93 {
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94 }
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95
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96 void SetInactivityTimeout(unsigned int milliseconds);
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97
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98 unsigned int GetInactivityTimeout(); // In milliseconds
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99
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100 void Close();
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101
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102 void CloseIfInactive();
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103 };
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104 }