/* Node-type for exec node-types. * * Author: Steffen Vogel * SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University * SPDX-License-Identifier: Apache-2.0 */ #pragma once #include #include #include namespace villas { namespace node { // Forward declarations struct Sample; class ExecNode : public Node { protected: std::unique_ptr proc; std::unique_ptr formatter; FILE *stream_in, *stream_out; bool flush; bool shell; std::string working_dir; std::string command; villas::utils::Popen::arg_list arguments; villas::utils::Popen::env_map environment; virtual int _read(struct Sample *smps[], unsigned cnt); virtual int _write(struct Sample *smps[], unsigned cnt); public: ExecNode(const uuid_t &id = {}, const std::string &name = "") : Node(id, name), stream_in(nullptr), stream_out(nullptr), flush(true), shell(false) {} virtual ~ExecNode(); virtual const std::string &getDetails(); virtual int start(); virtual int stop(); virtual int prepare(); virtual int parse(json_t *json); virtual std::vector getPollFDs(); }; } // namespace node } // namespace villas