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https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-09 00:00:00 +01:00
add plugin frame for rtp node
using nanomsg as a template
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2 changed files with 233 additions and 0 deletions
80
include/villas/nodes/rtp.h
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80
include/villas/nodes/rtp.h
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/** Node type: rtp
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*
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* @file
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2017-2018, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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/**
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* @addtogroup rtp rtp node type
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* @ingroup node
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* @{
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*/
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#pragma once
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#include <villas/node.h>
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#include <villas/list.h>
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#include <villas/io.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** The maximum length of a packet which contains stuct rtp. */
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#define RTP_MAX_PACKET_LEN 1500
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/* Forward declarations */
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struct format_type;
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struct rtp {
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/*
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struct {
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int socket;
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struct list endpoints;
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} in, out;
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struct format_type *format;
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struct io io;
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*/
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};
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/** @see node_type::print */
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char * rtp_print(struct node *n);
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/** @see node_type::parse */
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int rtp_parse(struct node *n, json_t *cfg);
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/** @see node_type::open */
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int rtp_start(struct node *n);
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/** @see node_type::close */
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int rtp_stop(struct node *n);
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/** @see node_type::read */
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int rtp_read(struct node *n, struct sample *smps[], unsigned cnt, unsigned *release);
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/** @see node_type::write */
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int rtp_write(struct node *n, struct sample *smps[], unsigned cnt, unsigned *release);
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#ifdef __cplusplus
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}
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#endif
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/** @} */
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153
lib/nodes/rtp.c
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153
lib/nodes/rtp.c
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/** Node type: rtp
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*
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2017-2018, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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/* TODO: individual includes instead of wrapper include */
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#include <re/re.h>
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#include <string.h>
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#include <villas/plugin.h>
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#include <villas/nodes/rtp.h>
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#include <villas/utils.h>
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#include <villas/format_type.h>
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int rtp_reverse(struct node *n)
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{
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struct rtp *m = (struct rtp *) n->_vd;
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/* TODO */
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return 0;
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}
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int rtp_parse(struct node *n, json_t *cfg)
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{
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int ret;
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struct rtp *m = (struct rtp *) n->_vd;
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const char *format = "villas.binary";
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json_error_t err;
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/* TODO ret = json_unpack_ex(...); */
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if (ret)
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jerror(&err, "Failed to parse configuration of node %s", node_name(n));
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return 0;
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}
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char * rtp_print(struct node *n)
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{
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struct rtp *m = (struct rtp *) n->_vd;
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char *buf = NULL;
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/* TODO */
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return buf;
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}
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int rtp_start(struct node *n)
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{
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int ret;
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struct rtp *m = (struct rtp *) n->_vd;
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/* TODO */
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return 0;
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}
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int rtp_stop(struct node *n)
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{
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int ret;
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struct rtp *m = (struct rtp *) n->_vd;
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/* TODO */
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return 0;
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}
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int rtp_type_stop()
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{
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/* TODO */
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return -1;
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}
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int rtp_read(struct node *n, struct sample *smps[], unsigned cnt, unsigned *release)
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{
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struct rtp *m = (struct rtp *) n->_vd;
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int bytes;
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char data[RTP_MAX_PACKET_LEN];
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/* TODO */
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return -1;
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}
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int rtp_write(struct node *n, struct sample *smps[], unsigned cnt, unsigned *release)
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{
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int ret;
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struct rtp *m = (struct rtp *) n->_vd;
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size_t wbytes;
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char data[RTP_MAX_PACKET_LEN];
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/* TODO */
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return cnt;
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}
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int rtp_fd(struct node *n)
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{
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int ret;
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struct rtp *m = (struct rtp *) n->_vd;
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int fd;
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size_t len = sizeof(fd);
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/* TODO */
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return fd;
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}
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static struct plugin p = {
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.name = "rtp",
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.description = "real-time transport protocol (libre)",
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.type = PLUGIN_TYPE_NODE,
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.node = {
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.vectorize = 0,
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.size = sizeof(struct rtp),
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.type.stop = rtp_type_stop,
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.reverse = rtp_reverse,
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.parse = rtp_parse,
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.print = rtp_print,
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.start = rtp_start,
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.stop = rtp_stop,
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.read = rtp_read,
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.write = rtp_write,
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.fd = rtp_fd
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}
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};
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REGISTER_PLUGIN(&p)
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LIST_INIT_STATIC(&p.node.instances)
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