Program Listing for File file_source.hpp

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/* * SPDX-FileCopyrightText: Copyright (c) 2021-2023, 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 * * * * 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. */ #pragma once #include "morpheus/messages/meta.hpp" #include <boost/fiber/future/future.hpp> #include <mrc/node/rx_sink_base.hpp> #include <mrc/node/rx_source_base.hpp> #include <mrc/node/source_properties.hpp> #include <mrc/segment/builder.hpp> #include <mrc/segment/object.hpp> #include <mrc/types.hpp> #include <pymrc/node.hpp> #include <rxcpp/rx.hpp> // for apply, make_subscriber, observable_member, is_on_error<>::not_void, is_on_next_of<>::not_void, trace_activity #include <map> #include <memory> #include <string> #include <vector> // for vector namespace morpheus { /****** Component public implementations *******************/ /****** FileSourceStage*************************************/ #pragma GCC visibility push(default) class FileSourceStage : public mrc::pymrc::PythonSource<std::shared_ptr<MessageMeta>> { public: using base_t = mrc::pymrc::PythonSource<std::shared_ptr<MessageMeta>>; using typename base_t::source_type_t; using typename base_t::subscriber_fn_t; FileSourceStage(std::string filename, int repeat = 1); private: subscriber_fn_t build(); std::string m_filename; int m_repeat{1}; }; /****** FileSourceStageInterfaceProxy***********************/ struct FileSourceStageInterfaceProxy { static std::shared_ptr<mrc::segment::Object<FileSourceStage>> init(mrc::segment::Builder& builder, const std::string& name, std::string filename, int repeat = 1); }; #pragma GCC visibility pop// end of group } // namespace morpheus

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