112 lines
2.4 KiB
C++
112 lines
2.4 KiB
C++
/* This file is part of the Pangolin Project.
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* http://github.com/stevenlovegrove/Pangolin
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*
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* Copyright (c) 2011 Steven Lovegrove
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include <Python.h>
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#include <pangolin/platform.h>
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namespace pangolin
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{
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/// Class represents a reference counted PythonObject.
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/// PythonObject is appropriately Py_INCREF'd and Py_DECREF'd
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class PyUniqueObj
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{
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public:
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inline
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PyUniqueObj()
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: obj(0)
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{
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}
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/// Assumption: PythonObject has already been appropriately INCREF'd.
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inline
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PyUniqueObj(PyObject* obj)
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: obj(obj)
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{
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}
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inline
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PyUniqueObj(const PyUniqueObj& other)
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:obj(other.obj)
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{
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if(obj) Py_INCREF(obj);
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}
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inline
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~PyUniqueObj()
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{
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if(obj) Py_DECREF(obj);
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}
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inline
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PyUniqueObj(PyUniqueObj&& other)
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: obj(other.obj)
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{
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other.obj = 0;
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}
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inline
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void operator=(PyUniqueObj&& other)
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{
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Release();
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obj = other.obj;
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other.obj = 0;
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}
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inline
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void operator=(PyObject* obj)
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{
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Release();
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this->obj = obj;
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}
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inline
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void Release() {
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if(obj) {
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Py_DECREF(obj);
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obj = 0;
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}
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}
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inline
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PyObject* operator*() {
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return obj;
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}
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inline
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operator PyObject*() {
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return obj;
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}
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private:
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PyObject* obj;
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};
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}
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