--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Sources/PythonLock.h	Thu Mar 26 18:47:01 2020 +0100
@@ -0,0 +1,62 @@
+/**
+ * Python plugin for Orthanc
+ * Copyright (C) 2017-2020 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include <orthanc/OrthancCPlugin.h>
+
+#define PY_SSIZE_T_CLEAN  /* Make "s#" use Py_ssize_t rather than int. */
+#include <Python.h>
+
+#include <boost/noncopyable.hpp>
+#include <string>
+
+class PythonLock : public boost::noncopyable
+{
+private:
+  PyGILState_STATE gstate_;
+  
+public:
+  typedef void (*ModuleClassesInstaller) (PyObject* module);
+  
+  typedef PyMethodDef* (*ModuleFunctionsInstaller) ();
+  
+  PythonLock();
+  
+  ~PythonLock();
+
+  void ExecuteCommand(const std::string& s);
+
+  void ExecuteFile(const std::string& path);
+
+  bool HasErrorOccurred(std::string& traceback);
+
+  static void GlobalInitialize(const std::string& moduleName,
+                               const std::string& exceptionName,
+                               ModuleFunctionsInstaller moduleFunctions,
+                               ModuleClassesInstaller moduleClasses,
+                               bool verbose);
+
+  static void GlobalFinalize();
+
+  static void AddSysPath(const std::string& path);
+
+  static void RaiseException(PyObject* module,
+                             OrthancPluginErrorCode code);
+};