ceph/src/boost/libs/python/include/boost/python/refcount.hpp

   1 // Copyright David Abrahams 2002.
   2 // Distributed under the Boost Software License, Version 1.0. (See
   3 // accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5 #ifndef REFCOUNT_DWA2002615_HPP
   6 # define REFCOUNT_DWA2002615_HPP
   7
   8 # include <boost/python/detail/prefix.hpp>
   9 # include <boost/python/cast.hpp>
  10
  11 namespace boost { namespace python {
  12
  13 template <class T>
  14 inline T* incref(T* p)
  15 {
  16     Py_INCREF(python::upcast<PyObject>(p));
  17     return p;
  18 }
  19
  20 template <class T>
  21 inline T* xincref(T* p)
  22 {
  23     Py_XINCREF(python::upcast<PyObject>(p));
  24     return p;
  25 }
  26
  27 template <class T>
  28 inline void decref(T* p)
  29 {
  30     assert( Py_REFCNT(python::upcast<PyObject>(p)) > 0 );
  31     Py_DECREF(python::upcast<PyObject>(p));
  32 }
  33
  34 template <class T>
  35 inline void xdecref(T* p)
  36 {
  37     assert( !p || Py_REFCNT(python::upcast<PyObject>(p)) > 0 );
  38     Py_XDECREF(python::upcast<PyObject>(p));
  39 }
  40
  41 }} // namespace boost::python
  42
  43 #endif // REFCOUNT_DWA2002615_HPP