Mercurial > hg > orthanc-python
annotate Sources/PythonModule.cpp @ 94:8d9f935751fb
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 31 Aug 2021 14:11:05 +0200 |
| parents | 0b3ef425db31 |
| children | eb6ac5a801d1 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Python plugin for Orthanc | |
|
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upgrade to year 2021
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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3 * Copyright (C) 2020-2021 Osimis S.A., Belgium |
| 0 | 4 * |
| 5 * This program is free software: you can redistribute it and/or | |
| 6 * modify it under the terms of the GNU Affero General Public License | |
| 7 * as published by the Free Software Foundation, either version 3 of | |
| 8 * the License, or (at your option) any later version. | |
| 9 * | |
| 10 * This program is distributed in the hope that it will be useful, but | |
| 11 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 * Affero General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU Affero General Public License | |
| 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 **/ | |
| 18 | |
| 19 | |
| 20 #include "PythonModule.h" | |
| 21 | |
|
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
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22 #include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h" |
| 0 | 23 #include "PythonString.h" |
| 24 | |
| 25 #include <boost/thread/mutex.hpp> | |
| 26 #include <set> | |
| 27 | |
| 28 | |
| 29 #if PY_VERSION_HEX < 0x03070000 /* 3.7.0 */ | |
| 30 static PythonObject* GetModule(PythonLock& lock, | |
| 31 const std::string& utf8Name) | |
| 32 { | |
| 33 static boost::mutex mutex_; | |
| 34 static std::set<std::string> loadedModules_; | |
| 35 | |
| 36 boost::mutex::scoped_lock l(mutex_); | |
| 37 | |
| 38 if (loadedModules_.find(utf8Name) == loadedModules_.end()) | |
| 39 { | |
| 40 PythonString tmp(lock, utf8Name); | |
| 41 | |
| 42 // The module is not imported yet | |
| 43 loadedModules_.insert(utf8Name); | |
| 44 return new PythonObject(lock, PyImport_Import(tmp.GetPyObject()), false); | |
| 45 } | |
| 46 else | |
| 47 { | |
| 48 // PyImport_AddModule returns a borrowed reference | |
| 49 return new PythonObject(lock, PyImport_AddModule(utf8Name.c_str()), true); | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 #else | |
| 54 // The "PyImport_GetModule()" function was introduced in Python | |
| 55 // 3.7.0 | |
| 56 static PythonObject* GetModule(PythonLock& lock, | |
| 57 const std::string& utf8Name) | |
| 58 { | |
| 59 PythonString tmp(lock, utf8Name); | |
| 60 | |
| 61 PyObject* module = PyImport_GetModule(tmp.GetPyObject()); | |
| 62 if (module != NULL) | |
| 63 { | |
| 64 // The module was already imported by a previous call: Reuse it | |
| 65 return new PythonObject(lock, module); | |
| 66 } | |
| 67 else | |
| 68 { | |
| 69 // This is the first time this module is used: Import it | |
| 70 return new PythonObject(lock, PyImport_Import(tmp.GetPyObject())); | |
| 71 } | |
| 72 } | |
| 73 #endif | |
| 74 | |
| 75 | |
| 76 PythonModule::PythonModule(PythonLock& lock, | |
| 77 const std::string& utf8Name) : | |
| 78 lock_(lock), | |
| 79 name_(utf8Name) | |
| 80 { | |
| 81 module_.reset(GetModule(lock, utf8Name)); | |
| 82 } | |
| 83 | |
| 84 | |
| 85 bool PythonModule::IsValid() const | |
| 86 { | |
| 87 return (module_.get() != NULL && | |
| 88 module_->IsValid()); | |
| 89 } | |
| 90 | |
| 91 | |
| 92 PythonObject& PythonModule::GetObject() const | |
| 93 { | |
| 94 if (!IsValid()) | |
| 95 { | |
| 96 ORTHANC_PLUGINS_THROW_EXCEPTION(BadSequenceOfCalls); | |
| 97 } | |
| 98 else | |
| 99 { | |
| 100 return *module_; | |
| 101 } | |
| 102 } | |
| 103 | |
| 104 | |
| 105 PyObject* PythonModule::GetPyObject() const | |
| 106 { | |
| 107 if (!IsValid()) | |
| 108 { | |
| 109 ORTHANC_PLUGINS_THROW_EXCEPTION(BadSequenceOfCalls); | |
| 110 } | |
| 111 else | |
| 112 { | |
| 113 return module_->GetPyObject(); | |
| 114 } | |
| 115 } |