mirror of
https://github.com/NVIDIA/TensorRT-LLM.git
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88ea2c4ee9
Signed-off-by: Erin Ho <14718778+hchings@users.noreply.github.com> Co-authored-by: Yuan Tong <13075180+tongyuantongyu@users.noreply.github.com> Co-authored-by: Erin Ho <14718778+hchings@users.noreply.github.com>
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/*
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* Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "c10/util/intrusive_ptr.h"
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#include <Python.h>
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namespace tensorrt_llm::common
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{
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// Adapted from pybind11's example implementation:
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// https://github.com/pybind/pybind11/blob/master/include/pybind11/conduit/pybind11_conduit_v1.h
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// Copyright (c) 2024 The pybind Community.
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inline void* get_raw_pointer_ephemeral(
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PyObject* py_obj, std::type_info const* cpp_type_info, std::string const& pybind11_abi)
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{
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PyObject* cpp_type_info_capsule = PyCapsule_New(
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const_cast<void*>(static_cast<void const*>(cpp_type_info)), typeid(std::type_info).name(), nullptr);
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if (cpp_type_info_capsule == nullptr)
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{
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return nullptr;
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}
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PyObject* cpp_conduit = PyObject_CallMethod(
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py_obj, "_pybind11_conduit_v1_", "yOy", pybind11_abi.c_str(), cpp_type_info_capsule, "raw_pointer_ephemeral");
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Py_DECREF(cpp_type_info_capsule);
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if (cpp_conduit == nullptr)
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{
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return nullptr;
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}
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void* raw_ptr = PyCapsule_GetPointer(cpp_conduit, cpp_type_info->name());
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Py_DECREF(cpp_conduit);
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if (PyErr_Occurred())
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{
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return nullptr;
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}
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return raw_ptr;
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}
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template <typename T, typename E>
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T* get_type_pointer_ephemeral(PyObject* py_obj, std::string pybind11_abi)
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{
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void* raw_ptr = get_raw_pointer_ephemeral(py_obj, &typeid(T), pybind11_abi);
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if (raw_ptr == nullptr)
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{
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throw E();
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}
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return static_cast<T*>(raw_ptr);
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}
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template <typename T, typename E>
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c10::intrusive_ptr<T> get_intrusive_ptr(PyObject* py_obj, std::string pybind11_abi)
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{
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auto* const p = get_type_pointer_ephemeral<T, E>(py_obj, pybind11_abi);
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return c10::intrusive_ptr<T>::reclaim_copy(p);
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}
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} // namespace tensorrt_llm::common
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