DDPython.h

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//==========================================================================
//  AIDA Detector description implementation 
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
//  \author Markus Frank
//  \date   2015-11-07
//
//==========================================================================
#ifndef DDG4_PYTHON_DDPYTHON_H
#define DDG4_PYTHON_DDPYTHON_H 1
 
// C/C++ include files
#include <string>
 
// ROOT include file(s)
#include <TPyReturn.h>
 
namespace dd4hep  {
 
  struct DDPythonGlobalState;
 
 
  class DDPython {
  protected:
    void* context;
    DDPython( ); 
  protected:
    static bool isMainThread();
  public:
    struct GILState {
      int state;
      explicit GILState(int);
      ~GILState();
    };
    struct BlockThreads {
      explicit BlockThreads(int);
      ~BlockThreads();
    };
    struct AllowThreads {
      explicit AllowThreads(int);
      ~AllowThreads();
    };
 
    static void allowThreads();
    static void restoreThread();
 
    static DDPython instance();
    static void shutdown();
    static void setMainThread();
 
    static void releaseObject(PyObject*& obj);
 
    static void assignObject(PyObject*& obj, PyObject* new_obj);
 
    static int run_interpreter(int argc, char** argv);
 
    DDPython(const DDPython& ) {}
 
    ~DDPython( );
 
    int  setArgs(int argc, char** argv)  const;
    int  runFile(const std::string& fname)  const;
    int  execute(const std::string& cmd)  const;
    int  evaluate(const std::string& cmd)  const;
 
 
    PyObject* call(PyObject* method, PyObject* args);
 
 
    TPyReturn callC(PyObject* method, PyObject* args);
 
    void prompt()  const;
 
    void afterFork()  const;
 
  private:
 
  };
}
 
#endif // DDG4_PYTHON_DDPYTHON_H