/* Rate-limiting hook. * * 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 namespace villas { namespace node { class LimitRateHook : public LimitHook { protected: // The timestamp which should be used for limiting. enum { LIMIT_RATE_LOCAL, LIMIT_RATE_RECEIVED, LIMIT_RATE_ORIGIN } mode; double deadtime; timespec last; public: LimitRateHook(Path *p, Node *n, int fl, int prio, bool en = true) : LimitHook(p, n, fl, prio, en), mode(LIMIT_RATE_LOCAL), deadtime(0), last({0, 0}) {} virtual void setRate(double rate, double maxRate = -1) { deadtime = 1.0 / rate; } virtual void parse(json_t *json); virtual Hook::Reason process(struct Sample *smp); }; } // namespace node } // namespace villas