/* Node direction. * * 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 #include #include namespace villas { namespace node { // Forward declarations class Node; class Path; class NodeDirection { friend Node; public: enum class Direction { IN, // VILLASnode is receiving/reading OUT // VILLASnode is sending/writing } direction; /* The path which uses this node as a source/destination. * * Usually every node should be used only by a single path as destination. * Otherwise samples from different paths would be interleaved. */ Path *path; Node *node; int enabled; int builtin; // This node should use built-in hooks by default. unsigned vectorize; // Number of messages to send / recv at once (scatter / gather) HookList hooks; // List of read / write hooks (struct hook). SignalList::Ptr signals; // Signal description. json_t *config; // A JSON object containing the configuration of the node. NodeDirection(enum NodeDirection::Direction dir, Node *n); int parse(json_t *json); void check(); int prepare(); int start(); int stop(); SignalList::Ptr getSignals(int after_hooks = true) const; unsigned getSignalsMaxCount() const; }; } // namespace node } // namespace villas