1st Version with ECAL

include/RelGILLock.h

@@ -0,0 +1,19 @@
+#include <boost/python.hpp>
+#include <boost/thread.hpp>
+
+
+//Use this class in a c++ funktion that is called from python :   python => c++
+class PyRelinquishGIL
+{
+
+public:
+    PyRelinquishGIL();
+
+    ~PyRelinquishGIL();
+
+    PyRelinquishGIL(const PyRelinquishGIL&) = delete;
+    PyRelinquishGIL& operator=(const PyRelinquishGIL&) = delete;
+
+private:
+    PyThreadState* m_thread_state;
+};