PyReverseProxy Struct Reference

A utility class to convert a C++ object to a PyObject. More...

#include <PyReverseProxy.h>

Collaboration diagram for PyReverseProxy:

Public Member Functions
	~PyReverseProxy ()
	destructor More...
void	setFunc (PyObject *func)
	setter More...
void	getObj (void *&obj)
PyObject *	toPyObj (void *obj)

Static Public Member Functions
static PyReverseProxy *	getProxy (const std::string &key)
	factory method More...

Private Member Functions
	PyReverseProxy ()
	default constructor : never used More...
	PyReverseProxy (const std::string &key)
	constructor More...

Private Attributes
std::string	m_key
	key More...
void *	m_obj
	C++ obj. More...
PyObject *	m_func
	python code fragment to convert C++ obj to PyObj More...

Static Private Attributes
static std::unordered_map< std::string, PyReverseProxy * > s_proxyMap	ATLAS_THREAD_SAFE
	proxy map protected by the python GIL. More...

Detailed Description

A utility class to convert a C++ object to a PyObject.

Author

Tadashi Maeno

Definition at line 27 of file PyReverseProxy.h.

Constructor & Destructor Documentation

~PyReverseProxy()

PyReverseProxy::~PyReverseProxy ( )

inline

destructor

Definition at line 30 of file PyReverseProxy.h.

  {
    RootUtils::PyGILStateEnsure gil;
    s_proxyMap.erase(m_key);
  }

PyReverseProxy() [1/2]

PyReverseProxy::PyReverseProxy ( )

inlineprivate

default constructor : never used

Definition at line 71 of file PyReverseProxy.h.

  {}

PyReverseProxy() [2/2]

PyReverseProxy::PyReverseProxy ( const std::string &  key )

inlineprivate

constructor

Definition at line 75 of file PyReverseProxy.h.

    : m_key(key), m_obj(0), m_func(0)
  {}

Member Function Documentation

getObj()

void PyReverseProxy::getObj ( void *&  obj )

inline

Definition at line 46 of file PyReverseProxy.h.

  {
    obj = m_obj;
  }

getProxy()

static PyReverseProxy* PyReverseProxy::getProxy ( const std::string &  key )

inlinestatic

factory method

Definition at line 59 of file PyReverseProxy.h.

  {
    RootUtils::PyGILStateEnsure gil;
    PyReverseProxy* & prox = s_proxyMap[key];
    if (!prox) {
      prox = new PyReverseProxy(key);
    }
    return prox;
  }

setFunc()

void PyReverseProxy::setFunc ( PyObject *  func )

inline

setter

Definition at line 37 of file PyReverseProxy.h.

  {
    RootUtils::PyGILStateEnsure gil;
    Py_DECREF(m_func); 
    m_func = func;
    Py_INCREF(m_func); 
  }

toPyObj()

PyObject* PyReverseProxy::toPyObj ( void *  obj )

inline

Definition at line 51 of file PyReverseProxy.h.

  {
    RootUtils::PyGILStateEnsure gil;
    m_obj = obj;
    return PyObject_CallObject(m_func,NULL);
  }

Member Data Documentation

ATLAS_THREAD_SAFE

std::unordered_map<std::string, PyReverseProxy *> s_proxyMap PyReverseProxy::ATLAS_THREAD_SAFE

staticprivate

proxy map protected by the python GIL.

Definition at line 90 of file PyReverseProxy.h.

m_func

PyObject* PyReverseProxy::m_func

private

python code fragment to convert C++ obj to PyObj

Definition at line 86 of file PyReverseProxy.h.

m_key

std::string PyReverseProxy::m_key

private

key

Definition at line 80 of file PyReverseProxy.h.

m_obj

void* PyReverseProxy::m_obj

private

C++ obj.

Definition at line 83 of file PyReverseProxy.h.

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The documentation for this struct was generated from the following file:

• PyReverseProxy.h