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baldurk
6969b5b677
* We need to keep a PythonContext (and its globals Dict) around while we still have some pending callbacks happening. So now the external code creates a PythonContext and then releases it when it's done, but the context will hang around until the global redirector object is destructed, which is responsible for deleting the context. * The global redirector is deleted when a refcounting cycle is detected and the dict is unreachable, which only happens after the context is released. * Any time a callback is passed to something and converted to a std::function we add a reference on the global redirector to keep it alive. When the callback has finished executing we remove the ref. * This way, any pending callbacks that have been called but not finished or converted (queued) and not called yet asynchronously will keep the context object alive to be able to output, handle exceptions, etc. * Additionally we need to detect when we're being called asynchronously and handle exceptions separately instead of trying to propagate up the call chain, because there might not be any more python code up the chain (e.g. the render manager calling a python callback).
35 lines
1.4 KiB
C++
35 lines
1.4 KiB
C++
/******************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Baldur Karlsson
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* 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, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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******************************************************************************/
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#include <Python.h>
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extern "C" PyThreadState *GetExecutingThreadState(PyObject *global_handle)
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{
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return NULL;
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}
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extern "C" void HandleException(PyObject *global_handle)
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{
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}
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