Mercurial > hg > orthanc
annotate OrthancServer/DicomProtocol/ReusableDicomUserConnection.cpp @ 815:5dcfdd3bfca9
endianness
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 08 May 2014 15:52:37 +0200 |
parents | be87dd517416 |
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rev | line source |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
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4 * Belgium |
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5 * |
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6 * This program is free software: you can redistribute it and/or |
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7 * modify it under the terms of the GNU General Public License as |
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8 * published by the Free Software Foundation, either version 3 of the |
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9 * License, or (at your option) any later version. |
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10 * |
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11 * In addition, as a special exception, the copyright holders of this |
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12 * program give permission to link the code of its release with the |
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it |
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14 * that use the same license as the "OpenSSL" library), and distribute |
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15 * the linked executables. You must obey the GNU General Public License |
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16 * in all respects for all of the code used other than "OpenSSL". If you |
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17 * modify file(s) with this exception, you may extend this exception to |
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18 * your version of the file(s), but you are not obligated to do so. If |
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19 * you do not wish to do so, delete this exception statement from your |
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20 * version. If you delete this exception statement from all source files |
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21 * in the program, then also delete it here. |
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22 * |
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23 * This program is distributed in the hope that it will be useful, but |
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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26 * General Public License for more details. |
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27 * |
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28 * You should have received a copy of the GNU General Public License |
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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30 **/ |
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31 |
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32 |
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33 #include "ReusableDicomUserConnection.h" |
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34 |
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35 #include "../../Core/OrthancException.h" |
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36 |
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37 #include <glog/logging.h> |
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38 |
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39 namespace Orthanc |
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40 { |
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41 static boost::posix_time::ptime Now() |
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42 { |
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43 return boost::posix_time::microsec_clock::local_time(); |
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44 } |
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45 |
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46 void ReusableDicomUserConnection::Open(const std::string& remoteAet, |
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47 const std::string& address, |
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48 int port, |
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49 ModalityManufacturer manufacturer) |
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50 { |
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51 if (connection_ != NULL && |
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52 connection_->GetDistantApplicationEntityTitle() == remoteAet && |
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53 connection_->GetDistantHost() == address && |
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54 connection_->GetDistantPort() == port && |
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55 connection_->GetDistantManufacturer() == manufacturer) |
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56 { |
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57 // The current connection can be reused |
773 | 58 LOG(INFO) << "Reusing the previous SCU connection"; |
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59 return; |
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60 } |
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61 |
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62 Close(); |
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63 |
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64 connection_ = new DicomUserConnection(); |
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65 connection_->SetLocalApplicationEntityTitle(localAet_); |
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66 connection_->SetDistantApplicationEntityTitle(remoteAet); |
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67 connection_->SetDistantHost(address); |
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68 connection_->SetDistantPort(port); |
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69 connection_->SetDistantManufacturer(manufacturer); |
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70 connection_->Open(); |
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71 } |
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72 |
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73 void ReusableDicomUserConnection::Close() |
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74 { |
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75 if (connection_ != NULL) |
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76 { |
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77 delete connection_; |
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78 connection_ = NULL; |
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79 } |
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80 } |
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81 |
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82 void ReusableDicomUserConnection::CloseThread(ReusableDicomUserConnection* that) |
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83 { |
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84 for (;;) |
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85 { |
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86 boost::this_thread::sleep(boost::posix_time::milliseconds(100)); |
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87 if (!that->continue_) |
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88 { |
774 | 89 //LOG(INFO) << "Finishing the thread watching the global SCU connection"; |
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90 return; |
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91 } |
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92 |
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93 { |
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94 boost::mutex::scoped_lock lock(that->mutex_); |
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95 if (that->connection_ != NULL && |
773 | 96 Now() >= that->lastUse_ + that->timeBeforeClose_) |
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97 { |
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98 LOG(INFO) << "Closing the global SCU connection after timeout"; |
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99 that->Close(); |
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100 } |
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101 } |
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102 } |
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103 } |
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104 |
776 | 105 ReusableDicomUserConnection::Locker::Locker(ReusableDicomUserConnection& that, |
106 const std::string& aet, | |
107 const std::string& address, | |
108 int port, | |
109 ModalityManufacturer manufacturer) : | |
110 ::Orthanc::Locker(that) | |
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111 { |
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112 that.Open(aet, address, port, manufacturer); |
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113 connection_ = that.connection_; |
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114 } |
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115 |
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116 |
776 | 117 ReusableDicomUserConnection::Locker::Locker(ReusableDicomUserConnection& that, |
118 const RemoteModalityParameters& remote) : | |
119 ::Orthanc::Locker(that) | |
772
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120 { |
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121 that.Open(remote.GetApplicationEntityTitle(), remote.GetHost(), |
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122 remote.GetPort(), remote.GetManufacturer()); |
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123 connection_ = that.connection_; |
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124 } |
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125 |
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126 |
776 | 127 DicomUserConnection& ReusableDicomUserConnection::Locker::GetConnection() |
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128 { |
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129 if (connection_ == NULL) |
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130 { |
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131 throw OrthancException(ErrorCode_InternalError); |
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132 } |
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133 |
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134 return *connection_; |
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135 } |
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136 |
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137 ReusableDicomUserConnection::ReusableDicomUserConnection() : |
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138 connection_(NULL), |
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139 timeBeforeClose_(boost::posix_time::seconds(5)), // By default, close connection after 5 seconds |
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140 localAet_("ORTHANC") |
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141 { |
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142 lastUse_ = Now(); |
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143 continue_ = true; |
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144 closeThread_ = boost::thread(CloseThread, this); |
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145 } |
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146 |
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147 ReusableDicomUserConnection::~ReusableDicomUserConnection() |
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148 { |
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149 continue_ = false; |
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150 closeThread_.join(); |
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151 Close(); |
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152 } |
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153 |
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154 void ReusableDicomUserConnection::SetMillisecondsBeforeClose(unsigned int ms) |
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155 { |
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156 boost::mutex::scoped_lock lock(mutex_); |
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157 timeBeforeClose_ = boost::posix_time::milliseconds(ms); |
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158 } |
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159 |
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160 void ReusableDicomUserConnection::SetLocalApplicationEntityTitle(const std::string& aet) |
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161 { |
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162 boost::mutex::scoped_lock lock(mutex_); |
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163 Close(); |
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164 localAet_ = aet; |
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165 } |
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166 |
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167 void ReusableDicomUserConnection::Lock() |
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168 { |
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169 mutex_.lock(); |
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170 } |
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171 |
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172 void ReusableDicomUserConnection::Unlock() |
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173 { |
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174 lastUse_ = Now(); |
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175 mutex_.unlock(); |
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176 } |
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177 } |
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178 |