Mercurial > hg > orthanc
annotate Plugins/Engine/SharedLibrary.cpp @ 1631:0d074f5f6069
fix
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 21 Sep 2015 13:33:50 +0200 |
parents | ffd23c0104af |
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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) 2012-2015 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, 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 |
1625 | 33 #include "../../OrthancServer/PrecompiledHeadersServer.h" |
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34 #include "SharedLibrary.h" |
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35 |
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36 #include "../../Core/Logging.h" |
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37 #include "../../Core/Toolbox.h" |
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38 |
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39 #include <boost/filesystem.hpp> |
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40 |
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41 #if defined(_WIN32) |
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42 #include <windows.h> |
1337 | 43 #elif defined(__linux) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) |
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44 #include <dlfcn.h> |
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45 #else |
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46 #error Support your platform here |
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47 #endif |
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48 |
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49 namespace Orthanc |
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50 { |
1631 | 51 SharedLibrary::SharedLibrary(const std::string& path) : |
52 path_(path), | |
53 handle_(NULL) | |
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54 { |
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55 #if defined(_WIN32) |
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56 handle_ = ::LoadLibraryA(path_.c_str()); |
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57 if (handle_ == NULL) |
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58 { |
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59 LOG(ERROR) << "LoadLibrary(" << path_ << ") failed: Error " << ::GetLastError(); |
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60 throw OrthancException(ErrorCode_SharedLibrary); |
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61 } |
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62 |
1337 | 63 #elif defined(__linux) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) |
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64 handle_ = ::dlopen(path_.c_str(), RTLD_NOW); |
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65 if (handle_ == NULL) |
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66 { |
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67 std::string explanation; |
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68 const char *tmp = ::dlerror(); |
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69 if (tmp) |
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70 { |
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71 explanation = ": Error " + std::string(tmp); |
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72 } |
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73 |
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74 LOG(ERROR) << "dlopen(" << path_ << ") failed" << explanation; |
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75 throw OrthancException(ErrorCode_SharedLibrary); |
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76 } |
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77 |
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78 #else |
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79 #error Support your platform here |
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80 #endif |
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81 } |
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82 |
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83 SharedLibrary::~SharedLibrary() |
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84 { |
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85 if (handle_) |
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86 { |
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87 #if defined(_WIN32) |
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88 ::FreeLibrary((HMODULE)handle_); |
1337 | 89 #elif defined(__linux) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) |
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90 ::dlclose(handle_); |
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91 #else |
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92 #error Support your platform here |
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93 #endif |
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94 } |
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95 } |
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96 |
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97 |
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98 SharedLibrary::FunctionPointer SharedLibrary::GetFunctionInternal(const std::string& name) |
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99 { |
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100 if (!handle_) |
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101 { |
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102 throw OrthancException(ErrorCode_InternalError); |
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103 } |
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104 |
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105 #if defined(_WIN32) |
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106 return ::GetProcAddress((HMODULE)handle_, name.c_str()); |
1337 | 107 #elif defined(__linux) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) |
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108 return ::dlsym(handle_, name.c_str()); |
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109 #else |
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110 #error Support your platform here |
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111 #endif |
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112 } |
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113 |
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114 |
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115 SharedLibrary::FunctionPointer SharedLibrary::GetFunction(const std::string& name) |
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116 { |
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117 SharedLibrary::FunctionPointer result = GetFunctionInternal(name); |
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118 |
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119 if (result == NULL) |
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120 { |
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121 LOG(ERROR) << "Shared library does not expose function \"" << name << "\""; |
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122 throw OrthancException(ErrorCode_SharedLibrary); |
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123 } |
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124 else |
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125 { |
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126 return result; |
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127 } |
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128 } |
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129 |
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Sebastien Jodogne <s.jodogne@gmail.com>
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130 |
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131 bool SharedLibrary::HasFunction(const std::string& name) |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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132 { |
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parents:
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133 return GetFunctionInternal(name) != NULL; |
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Sebastien Jodogne <s.jodogne@gmail.com>
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134 } |
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Sebastien Jodogne <s.jodogne@gmail.com>
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135 } |