Mercurial > hg > orthanc
annotate OrthancServer/Plugins/Samples/DelayedDeletion/Plugin.cpp @ 5538:6ce05f8b5b13
deprecating OrthancPluginSetDescription2(), OrthancPluginExtendOrthancExplorer2() and OrthancPluginSetRootUri2()
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Sat, 16 Mar 2024 11:34:28 +0100 |
| parents | 48b8dae6dc77 |
| children | 0b18690c1935 |
| 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) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2024 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU General Public License as |
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10 * published by the Free Software Foundation, either version 3 of the |
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11 * License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU General Public License |
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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20 **/ |
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21 |
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22 |
| 5024 | 23 #include "PendingDeletionsDatabase.h" |
| 24 | |
| 25 #include "../../../../OrthancFramework/Sources/FileStorage/FilesystemStorage.h" | |
| 26 #include "../../../../OrthancFramework/Sources/Logging.h" | |
| 27 #include "../../../../OrthancFramework/Sources/MultiThreading/SharedMessageQueue.h" | |
| 5265 | 28 #include "../Common/OrthancPluginCppWrapper.h" |
| 5024 | 29 |
| 30 #include <boost/thread.hpp> | |
| 31 | |
| 32 | |
| 33 class PendingDeletion : public Orthanc::IDynamicObject | |
| 34 { | |
| 35 private: | |
| 36 Orthanc::FileContentType type_; | |
| 37 std::string uuid_; | |
| 38 | |
| 39 public: | |
| 40 PendingDeletion(Orthanc::FileContentType type, | |
| 41 const std::string& uuid) : | |
| 42 type_(type), | |
| 43 uuid_(uuid) | |
| 44 { | |
| 45 } | |
| 46 | |
| 47 Orthanc::FileContentType GetType() const | |
| 48 { | |
| 49 return type_; | |
| 50 } | |
| 51 | |
| 52 const std::string& GetUuid() const | |
| 53 { | |
| 54 return uuid_; | |
| 55 } | |
| 56 }; | |
| 57 | |
| 58 | |
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59 static const char* DELAYED_DELETION = "DelayedDeletion"; |
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60 static bool continue_ = false; |
| 5024 | 61 static Orthanc::SharedMessageQueue queue_; |
| 62 static std::unique_ptr<Orthanc::FilesystemStorage> storage_; | |
| 63 static std::unique_ptr<PendingDeletionsDatabase> db_; | |
| 64 static std::unique_ptr<boost::thread> deletionThread_; | |
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65 static const char* databaseServerIdentifier_ = NULL; |
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66 static unsigned int throttleDelayMs_ = 0; |
| 5024 | 67 |
| 68 | |
| 5265 | 69 static Orthanc::FileContentType Convert(OrthancPluginContentType type) |
| 70 { | |
| 71 switch (type) | |
| 72 { | |
| 73 case OrthancPluginContentType_Dicom: | |
| 74 return Orthanc::FileContentType_Dicom; | |
| 75 | |
| 76 case OrthancPluginContentType_DicomAsJson: | |
| 77 return Orthanc::FileContentType_DicomAsJson; | |
| 78 | |
| 79 case OrthancPluginContentType_DicomUntilPixelData: | |
| 80 return Orthanc::FileContentType_DicomUntilPixelData; | |
| 81 | |
| 82 default: | |
| 83 return Orthanc::FileContentType_Unknown; | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 | |
| 5024 | 88 static OrthancPluginErrorCode StorageCreate(const char* uuid, |
| 89 const void* content, | |
| 90 int64_t size, | |
| 91 OrthancPluginContentType type) | |
| 92 { | |
| 93 try | |
| 94 { | |
| 5265 | 95 storage_->Create(uuid, content, size, Convert(type)); |
| 5024 | 96 return OrthancPluginErrorCode_Success; |
| 97 } | |
| 98 catch (Orthanc::OrthancException& e) | |
| 99 { | |
| 100 return static_cast<OrthancPluginErrorCode>(e.GetErrorCode()); | |
| 101 } | |
| 102 catch (...) | |
| 103 { | |
| 104 return OrthancPluginErrorCode_StorageAreaPlugin; | |
| 105 } | |
| 106 } | |
| 107 | |
| 108 | |
| 109 static OrthancPluginErrorCode StorageReadWhole(OrthancPluginMemoryBuffer64* target, // Memory buffer where to store the content of the file. It must be allocated by the plugin using OrthancPluginCreateMemoryBuffer64(). The core of Orthanc will free it. | |
| 110 const char* uuid, | |
| 111 OrthancPluginContentType type) | |
| 112 { | |
| 113 try | |
| 114 { | |
| 5265 | 115 std::unique_ptr<Orthanc::IMemoryBuffer> buffer(storage_->Read(uuid, Convert(type))); |
| 5024 | 116 |
| 117 // copy from a buffer allocated on plugin's heap into a buffer allocated on core's heap | |
| 118 if (OrthancPluginCreateMemoryBuffer64(OrthancPlugins::GetGlobalContext(), target, buffer->GetSize()) != OrthancPluginErrorCode_Success) | |
| 119 { | |
| 120 OrthancPlugins::LogError("Delayed deletion plugin: error while reading object " + std::string(uuid) + ", cannot allocate memory of size " + boost::lexical_cast<std::string>(buffer->GetSize()) + " bytes"); | |
| 121 return OrthancPluginErrorCode_StorageAreaPlugin; | |
| 122 } | |
| 123 | |
| 124 memcpy(target->data, buffer->GetData(), buffer->GetSize()); | |
| 125 | |
| 126 return OrthancPluginErrorCode_Success; | |
| 127 } | |
| 128 catch (Orthanc::OrthancException& e) | |
| 129 { | |
| 130 return static_cast<OrthancPluginErrorCode>(e.GetErrorCode()); | |
| 131 } | |
| 132 catch (...) | |
| 133 { | |
| 134 return OrthancPluginErrorCode_StorageAreaPlugin; | |
| 135 } | |
| 136 } | |
| 137 | |
| 138 | |
| 139 static OrthancPluginErrorCode StorageReadRange(OrthancPluginMemoryBuffer64* target, // Memory buffer where to store the content of the range. The memory buffer is allocated and freed by Orthanc. The length of the range of interest corresponds to the size of this buffer. | |
| 140 const char* uuid, | |
| 141 OrthancPluginContentType type, | |
| 142 uint64_t rangeStart) | |
| 143 { | |
| 144 try | |
| 145 { | |
| 5265 | 146 std::unique_ptr<Orthanc::IMemoryBuffer> buffer(storage_->ReadRange(uuid, Convert(type), rangeStart, rangeStart + target->size)); |
| 5024 | 147 |
| 148 assert(buffer->GetSize() == target->size); | |
| 149 | |
| 150 memcpy(target->data, buffer->GetData(), buffer->GetSize()); | |
| 151 | |
| 152 return OrthancPluginErrorCode_Success; | |
| 153 } | |
| 154 catch (Orthanc::OrthancException& e) | |
| 155 { | |
| 156 return static_cast<OrthancPluginErrorCode>(e.GetErrorCode()); | |
| 157 } | |
| 158 catch (...) | |
| 159 { | |
| 160 return OrthancPluginErrorCode_StorageAreaPlugin; | |
| 161 } | |
| 162 | |
| 163 return OrthancPluginErrorCode_Success; | |
| 164 } | |
| 165 | |
| 166 | |
| 167 static OrthancPluginErrorCode StorageRemove(const char* uuid, | |
| 168 OrthancPluginContentType type) | |
| 169 { | |
| 170 try | |
| 171 { | |
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172 LOG(INFO) << "DelayedDeletion - Scheduling delayed deletion of " << uuid; |
| 5265 | 173 db_->Enqueue(uuid, Convert(type)); |
| 5024 | 174 |
| 175 return OrthancPluginErrorCode_Success; | |
| 176 } | |
| 177 catch (Orthanc::OrthancException& e) | |
| 178 { | |
| 179 return static_cast<OrthancPluginErrorCode>(e.GetErrorCode()); | |
| 180 } | |
| 181 catch (...) | |
| 182 { | |
| 183 return OrthancPluginErrorCode_StorageAreaPlugin; | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 static void DeletionWorker() | |
| 188 { | |
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189 OrthancPluginSetCurrentThreadName(OrthancPlugins::GetGlobalContext(), "DELETION"); |
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190 |
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191 static const unsigned int GRANULARITY = 100; // In milliseconds |
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192 |
| 5024 | 193 while (continue_) |
| 194 { | |
| 195 std::string uuid; | |
| 196 Orthanc::FileContentType type = Orthanc::FileContentType_Dicom; // Dummy initialization | |
| 197 | |
| 198 bool hasDeleted = false; | |
| 199 | |
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200 while (continue_ && db_->Dequeue(uuid, type)) |
| 5024 | 201 { |
| 202 if (!hasDeleted) | |
| 203 { | |
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204 LOG(INFO) << "DelayedDeletion - Starting to process the pending deletions"; |
| 5024 | 205 } |
| 206 | |
| 207 hasDeleted = true; | |
| 208 | |
| 209 try | |
| 210 { | |
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211 LOG(INFO) << "DelayedDeletion - Asynchronous removal of file: " << uuid; |
| 5024 | 212 storage_->Remove(uuid, type); |
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213 |
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214 if (throttleDelayMs_ > 0) |
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215 { |
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216 boost::this_thread::sleep(boost::posix_time::milliseconds(throttleDelayMs_)); |
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217 } |
| 5024 | 218 } |
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219 catch (Orthanc::OrthancException& ex) |
| 5024 | 220 { |
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221 LOG(ERROR) << "DelayedDeletion - Cannot remove file: " << uuid << " " << ex.What(); |
| 5024 | 222 } |
| 223 } | |
| 224 | |
| 225 if (hasDeleted) | |
| 226 { | |
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227 LOG(INFO) << "DelayedDeletion - All the pending deletions have been completed"; |
| 5024 | 228 } |
| 229 | |
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230 boost::this_thread::sleep(boost::posix_time::milliseconds(GRANULARITY)); |
| 5024 | 231 } |
| 232 } | |
| 233 | |
| 234 | |
| 235 OrthancPluginErrorCode OnChangeCallback(OrthancPluginChangeType changeType, | |
| 236 OrthancPluginResourceType resourceType, | |
| 237 const char* resourceId) | |
| 238 { | |
| 239 switch (changeType) | |
| 240 { | |
| 241 case OrthancPluginChangeType_OrthancStarted: | |
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242 assert(deletionThread_.get() == NULL); |
| 5024 | 243 |
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244 LOG(WARNING) << "DelayedDeletion - Starting the deletion thread"; |
| 5024 | 245 continue_ = true; |
| 246 deletionThread_.reset(new boost::thread(DeletionWorker)); | |
| 247 break; | |
| 248 | |
| 249 case OrthancPluginChangeType_OrthancStopped: | |
| 250 | |
| 251 if (deletionThread_.get() != NULL) | |
| 252 { | |
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253 LOG(WARNING) << "DelayedDeletion - Stopping the deletion thread"; |
| 5024 | 254 continue_ = false; |
| 255 if (deletionThread_->joinable()) | |
| 256 { | |
| 257 deletionThread_->join(); | |
| 258 } | |
| 259 } | |
| 260 | |
| 261 break; | |
| 262 | |
| 263 default: | |
| 264 break; | |
| 265 } | |
| 266 | |
| 267 return OrthancPluginErrorCode_Success; | |
| 268 } | |
| 269 | |
| 270 | |
| 271 | |
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272 void GetPluginStatus(OrthancPluginRestOutput* output, |
| 5024 | 273 const char* url, |
| 274 const OrthancPluginHttpRequest* request) | |
| 275 { | |
| 276 | |
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277 Json::Value status; |
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278 status["FilesPendingDeletion"] = db_->GetSize(); |
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279 status["DatabaseServerIdentifier"] = databaseServerIdentifier_; |
| 5024 | 280 |
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281 std::string s = status.toStyledString(); |
| 5024 | 282 OrthancPluginAnswerBuffer(OrthancPlugins::GetGlobalContext(), output, s.c_str(), |
| 283 s.size(), "application/json"); | |
| 284 } | |
| 285 | |
| 286 | |
| 287 | |
| 288 extern "C" | |
| 289 { | |
| 290 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* context) | |
| 291 { | |
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292 OrthancPlugins::SetGlobalContext(context); |
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293 Orthanc::Logging::InitializePluginContext(context); |
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294 |
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295 |
| 5024 | 296 /* Check the version of the Orthanc core */ |
| 297 if (OrthancPluginCheckVersion(context) == 0) | |
| 298 { | |
| 299 char info[1024]; | |
| 300 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin", | |
| 301 context->orthancVersion, | |
| 302 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER, | |
| 303 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER, | |
| 304 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER); | |
| 305 OrthancPluginLogError(context, info); | |
| 306 return -1; | |
| 307 } | |
| 308 | |
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309 OrthancPluginSetDescription2(context, ORTHANC_PLUGIN_NAME, "Plugin removing files from storage asynchronously."); |
| 5024 | 310 |
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311 OrthancPlugins::OrthancConfiguration orthancConfig; |
| 5024 | 312 |
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313 if (!orthancConfig.IsSection(DELAYED_DELETION)) |
| 5024 | 314 { |
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315 LOG(WARNING) << "DelayedDeletion - plugin is loaded but not enabled (no \"DelayedDeletion\" section found in configuration)"; |
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316 return 0; |
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317 } |
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318 |
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319 OrthancPlugins::OrthancConfiguration delayedDeletionConfig; |
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320 orthancConfig.GetSection(delayedDeletionConfig, DELAYED_DELETION); |
| 5024 | 321 |
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322 if (delayedDeletionConfig.GetBooleanValue("Enable", true)) |
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323 { |
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324 databaseServerIdentifier_ = OrthancPluginGetDatabaseServerIdentifier(context); |
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325 throttleDelayMs_ = delayedDeletionConfig.GetUnsignedIntegerValue("ThrottleDelayMs", 0); // delay in ms |
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326 |
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327 |
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328 std::string pathStorage = orthancConfig.GetStringValue("StorageDirectory", "OrthancStorage"); |
| 5024 | 329 LOG(WARNING) << "DelayedDeletion - Path to the storage area: " << pathStorage; |
| 330 | |
| 331 storage_.reset(new Orthanc::FilesystemStorage(pathStorage)); | |
| 332 | |
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333 boost::filesystem::path defaultDbPath = boost::filesystem::path(pathStorage) / (std::string("pending-deletions.") + databaseServerIdentifier_ + ".db"); |
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334 std::string dbPath = delayedDeletionConfig.GetStringValue("Path", defaultDbPath.string()); |
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335 |
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336 LOG(WARNING) << "DelayedDeletion - Path to the SQLite database: " << dbPath; |
| 5024 | 337 |
| 338 // This must run after the allocation of "storage_", to make sure | |
| 339 // that the folder actually exists | |
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340 db_.reset(new PendingDeletionsDatabase(dbPath)); |
| 5024 | 341 |
| 342 OrthancPluginRegisterStorageArea2(context, StorageCreate, StorageReadWhole, StorageReadRange, StorageRemove); | |
| 343 | |
| 344 OrthancPluginRegisterOnChangeCallback(context, OnChangeCallback); | |
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345 |
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346 OrthancPlugins::RegisterRestCallback<GetPluginStatus>(std::string("/plugins/") + ORTHANC_PLUGIN_NAME + "/status", true); |
| 5024 | 347 } |
| 348 else | |
| 349 { | |
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350 LOG(WARNING) << "DelayedDeletion - plugin is loaded but disabled (check your \"DelayedDeletion.Enable\" configuration)"; |
| 5024 | 351 } |
| 352 | |
| 353 return 0; | |
| 354 } | |
| 355 | |
| 356 ORTHANC_PLUGINS_API void OrthancPluginFinalize() | |
| 357 { | |
| 358 db_.reset(); | |
| 359 storage_.reset(); | |
| 360 } | |
| 361 | |
| 362 ORTHANC_PLUGINS_API const char* OrthancPluginGetName() | |
| 363 { | |
| 364 return ORTHANC_PLUGIN_NAME; | |
| 365 } | |
| 366 | |
| 367 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion() | |
| 368 { | |
| 369 return ORTHANC_PLUGIN_VERSION; | |
| 370 } | |
| 371 } |