30 lines
965 B
C++
30 lines
965 B
C++
/* @file pyutil.hpp
|
|
*
|
|
* utility stuff to be used across multiple pybind11 .cpp files
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "xo/refcnt/Refcounted.hpp"
|
|
#include "xo/refcnt/Unowned.hpp"
|
|
#include <pybind11/pybind11.h>
|
|
|
|
/* xo::ref::intrusive_ptr<T> is an intrusively-reference-counted pointer.
|
|
* always safe to create one from a T* p
|
|
* (since refcount is directly accessible from p)
|
|
*
|
|
* Need declaration like this before any pybind11 bindings
|
|
* that expose an object of types like
|
|
* (a) intrusive_ptr<T> or
|
|
* (b) T * / T const * / T & / T const & to python.
|
|
* If this were not done, pybind11 would by default use unique_ptr<intrusive_ptr<T>>
|
|
* (ok but inefficient) or unique_ptr<T> (fatal!)
|
|
*/
|
|
PYBIND11_DECLARE_HOLDER_TYPE(T, xo::ref::intrusive_ptr<T>, true);
|
|
|
|
/* xo::ref::unowned_ptr<T> is an unmanaged pointer.
|
|
* use this for immortal objects that pybind11 must not delete.
|
|
*/
|
|
PYBIND11_DECLARE_HOLDER_TYPE(T, xo::ref::unowned_ptr<T>, true);
|
|
|
|
/* end pyutil.hpp */
|