/** Node-type for loopback connections. * * @file * @author Steffen Vogel * @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC * @license GNU General Public License (version 3) * * VILLASnode * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . *********************************************************************************/ /** * @ingroup node * @addtogroup loopback Loopback connections * @{ */ #pragma once #include #include /* Forward declarations */ struct vnode; struct sample; /** Node-type for signal generation. * @see node_type */ struct loopback { int queuelen; enum QueueSignalledMode mode; struct queue_signalled queue; }; /** @see node_type::print */ char * loopback_print(struct vnode *n); /** @see node_type::parse */ int loopback_parse(struct vnode *n, json_t *cfg); /** @see node_type::start */ int loopback_open(struct vnode *n); /** @see node_type::stop */ int loopback_close(struct vnode *n); /** @see node_type::read */ int loopback_read(struct vnode *n, struct sample *smps[], unsigned cnt, unsigned *release); /** @see node_type::write */ int loopback_write(struct vnode *n, struct sample *smps[], unsigned cnt, unsigned *release); /** @} */