Mercurial > hg > orthanc
annotate Plugins/Engine/SharedLibrary.cpp @ 1432:0ac74fa21db8
rename IServerIndexListener as IDatabaseListener
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 30 Jun 2015 12:51:29 +0200 |
parents | afaa55d42ddd |
children | f967bdf8534e |
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 |
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33 #include "SharedLibrary.h" |
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34 |
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35 #include "../../Core/Toolbox.h" |
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36 |
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37 #if defined(_WIN32) |
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38 #include <windows.h> |
1337 | 39 #elif defined(__linux) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) |
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40 #include <dlfcn.h> |
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41 #else |
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42 #error Support your platform here |
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43 #endif |
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44 |
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45 #include <glog/logging.h> |
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46 |
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47 namespace Orthanc |
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48 { |
887 | 49 SharedLibrary::SharedLibrary(const std::string& path) : |
50 path_(path), | |
51 handle_(NULL) | |
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52 { |
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53 #if defined(_WIN32) |
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54 handle_ = ::LoadLibraryA(path.c_str()); |
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55 if (handle_ == NULL) |
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56 { |
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57 LOG(ERROR) << "LoadLibrary(" << path << ") failed: Error " << ::GetLastError(); |
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58 throw OrthancException(ErrorCode_SharedLibrary); |
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59 } |
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60 |
1337 | 61 #elif defined(__linux) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) |
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62 handle_ = ::dlopen(path.c_str(), RTLD_NOW); |
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63 if (handle_ == NULL) |
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64 { |
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65 std::string explanation; |
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66 const char *tmp = ::dlerror(); |
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67 if (tmp) |
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68 { |
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69 explanation = ": Error " + std::string(tmp); |
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70 } |
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71 |
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72 LOG(ERROR) << "dlopen(" << path << ") failed" << explanation; |
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73 throw OrthancException(ErrorCode_SharedLibrary); |
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74 } |
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75 |
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76 #else |
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77 #error Support your platform here |
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78 #endif |
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79 } |
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80 |
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81 SharedLibrary::~SharedLibrary() |
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82 { |
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83 if (handle_) |
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84 { |
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85 #if defined(_WIN32) |
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86 ::FreeLibrary((HMODULE)handle_); |
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88 ::dlclose(handle_); |
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89 #else |
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90 #error Support your platform here |
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91 #endif |
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92 } |
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93 } |
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94 |
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95 |
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96 SharedLibrary::FunctionPointer SharedLibrary::GetFunctionInternal(const std::string& name) |
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97 { |
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98 if (!handle_) |
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99 { |
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100 throw OrthancException(ErrorCode_InternalError); |
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101 } |
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102 |
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103 #if defined(_WIN32) |
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104 return ::GetProcAddress((HMODULE)handle_, name.c_str()); |
1337 | 105 #elif defined(__linux) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) |
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106 return ::dlsym(handle_, name.c_str()); |
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107 #else |
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108 #error Support your platform here |
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109 #endif |
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110 } |
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111 |
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112 |
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113 SharedLibrary::FunctionPointer SharedLibrary::GetFunction(const std::string& name) |
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114 { |
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115 SharedLibrary::FunctionPointer result = GetFunctionInternal(name); |
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116 |
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117 if (result == NULL) |
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118 { |
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119 LOG(ERROR) << "Shared library does not expose function \"" << name << "\""; |
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120 throw OrthancException(ErrorCode_SharedLibrary); |
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121 } |
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122 else |
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123 { |
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124 return result; |
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125 } |
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126 } |
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127 |
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128 |
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129 bool SharedLibrary::HasFunction(const std::string& name) |
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130 { |
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parents:
884
diff
changeset
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131 return GetFunctionInternal(name) != NULL; |
884
cd8a69aa4093
creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
132 } |
cd8a69aa4093
creation of branch plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff
changeset
|
133 } |