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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) 2017-2018 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_SANDBOXED)
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37 # error The macro ORTHANC_SANDBOXED must be defined
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38 #endif
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39
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40 #if ORTHANC_SANDBOXED == 1
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41 # error The namespace SystemToolbox cannot be used in sandboxed environments
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42 #endif
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43
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44 #if defined(_WIN32)
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45 #include <windows.h>
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46 #endif
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47
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48 #include <string>
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49 #include <boost/noncopyable.hpp>
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50
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51 namespace Orthanc
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52 {
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53 class SharedLibrary : public boost::noncopyable
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54 {
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55 public:
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56 #if defined(_WIN32)
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57 typedef FARPROC FunctionPointer;
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58 #else
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59 typedef void* FunctionPointer;
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60 #endif
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61
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62 private:
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63 std::string path_;
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64 void *handle_;
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65
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66 FunctionPointer GetFunctionInternal(const std::string& name);
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67
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68 public:
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69 explicit SharedLibrary(const std::string& path);
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70
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71 ~SharedLibrary();
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72
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73 const std::string& GetPath() const
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74 {
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75 return path_;
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76 }
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77
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78 bool HasFunction(const std::string& name);
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79
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80 FunctionPointer GetFunction(const std::string& name);
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81 };
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82 }
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