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63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
// (C) Copyright David Abrahams 2000. Permission to copy, use, modify, sell and
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// distribute this software is granted provided this copyright notice appears
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// in all copies. This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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//
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// The author gratefully acknowleges the support of Dragon Systems, Inc., in
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// producing this work.
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#ifndef BASE_OBJECT_DWA051600_H_
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# define BASE_OBJECT_DWA051600_H_
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# include "pyconfig.h"
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# include "signatures.h" // really just for type<>
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# include "wrap_python.h"
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# include <cstring>
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namespace python { namespace detail {
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// base_object - adds a constructor and non-virtual destructor to a
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// base Python type (e.g. PyObject, PyTypeObject).
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template <class python_type>
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struct base_object : python_type
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{
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typedef python_type base_python_type;
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// Initializes type and reference count. All other fields of base_python_type are 0
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base_object(PyTypeObject* type_obj);
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// Decrements reference count on the type
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~base_object();
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};
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// Easy typedefs for common usage
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typedef base_object<PyObject> python_object;
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typedef base_object<PyTypeObject> python_type;
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//
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// class_t template member function implementations
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//
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template <class python_type>
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base_object<python_type>::base_object(PyTypeObject* type_obj)
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{
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base_python_type* bp = this;
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#if !defined(_MSC_VER) || defined(__STLPORT)
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std::
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#endif
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memset(bp, 0, sizeof(base_python_type));
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ob_refcnt = 1;
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ob_type = type_obj;
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Py_INCREF(type_obj);
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}
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template <class python_type>
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inline base_object<python_type>::~base_object()
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{
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Py_DECREF(ob_type);
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}
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}} // namespace python::detail
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#endif // BASE_OBJECT_DWA051600_H_
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