Program Listing for File mutable_table_ctx_mgr.cpp

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/* * SPDX-FileCopyrightText: Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved. * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "morpheus/objects/mutable_table_ctx_mgr.hpp" #include "morpheus/utilities/string_util.hpp" #include <pybind11/gil.h> #include <pybind11/pytypes.h> #include <utility> namespace morpheus { namespace py = pybind11; /********** MutableTableCtxMgr **********/ MutableTableCtxMgr::MutableTableCtxMgr(MessageMeta& meta_msg) : m_meta_msg{meta_msg}, m_table{nullptr}, m_py_table{nullptr} {}; py::object MutableTableCtxMgr::enter() { // Release the GIL py::gil_scoped_release no_gil; m_table = std::make_unique<MutableTableInfo>(std::move(m_meta_msg.get_mutable_info())); m_py_table = std::make_unique<py::object>(std::move(m_table->checkout_obj())); return *m_py_table; } void MutableTableCtxMgr::exit(const py::object& type, const py::object& value, const py::object& traceback) { m_table->return_obj(std::move(*m_py_table.release())); m_table.reset(nullptr); } void MutableTableCtxMgr::throw_usage_error(pybind11::args args, const pybind11::kwargs& kwargs) { throw py::attribute_error( MORPHEUS_CONCAT_STR("Error attempting to use mutable_dataframe outside of context manager. Intended usage :\n" "with message_meta.mutable_dataframe() as df:\n" " df['col'] = 5")); } } // namespace morpheus

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