/* Node-type for loopback connections. * * 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 namespace villas { namespace node { class LoopbackNode : public Node { protected: int queuelen; struct CQueueSignalled queue; enum QueueSignalledMode mode; virtual int _write(struct Sample *smps[], unsigned cnt); virtual int _read(struct Sample *smps[], unsigned cnt); public: LoopbackNode(const uuid_t &id = {}, const std::string &name = ""); virtual ~LoopbackNode(); virtual int prepare(); virtual int stop(); virtual std::vector getPollFDs(); virtual const std::string &getDetails(); virtual int parse(json_t *json); }; } // namespace node } // namespace villas