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https://git.rwth-aachen.de/acs/public/villas/node/
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108 lines
2.7 KiB
C++
108 lines
2.7 KiB
C++
/** Node type: kafka
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*
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* @file
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* @author Juan Pablo Noreña <jpnorenam@unal.edu.co>
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* @copyright 2021, Universidad Nacional de Colombia
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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 kafka kafka 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 <librdkafka/rdkafka.h>
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#include <villas/pool.h>
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#include <villas/format.hpp>
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#include <villas/queue_signalled.h>
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/* Forward declarations */
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struct vnode;
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struct kafka {
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struct queue_signalled queue;
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struct pool pool;
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double timeout; /**< Timeout in seconds. */
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char *server; /**< Hostname/IP:Port address of the bootstrap server. */
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char *protocol; /**< Security protocol. */
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char *produce; /**< Producer topic. */
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char *consume; /**< Consumer topic. */
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char *client_id; /**< Client ID. */
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struct {
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rd_kafka_t *client;
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rd_kafka_topic_t *topic;
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} producer;
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struct {
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rd_kafka_t *client;
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char *group_id; /**< Group id. */
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} consumer;
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struct {
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char *ca; /**< SSL CA file. */
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} ssl;
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struct {
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char *mechanism; /**< SASL mechanism. */
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char *username; /**< SSL CA path. */
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char *password; /**< SSL certificate. */
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} sasl;
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villas::node::Format *formatter;
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};
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/** @see node_type::reverse */
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int kafka_reverse(struct vnode *n);
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/** @see node_type::print */
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char * kafka_print(struct vnode *n);
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/** @see node_type::prepare */
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int kafka_prepare(struct vnode *n);
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/** @see node_type::parse */
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int kafka_parse(struct vnode *n, json_t *json);
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/** @see node_type::start */
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int kafka_start(struct vnode *n);
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/** @see node_type::destroy */
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int kafka_destroy(struct vnode *n);
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/** @see node_type::stop */
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int kafka_stop(struct vnode *n);
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/** @see node_type::type_start */
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int kafka_type_start(villas::node::SuperNode *sn);
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/** @see node_type::type_stop */
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int kafka_type_stop();
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/** @see node_type::read */
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int kafka_read(struct vnode *n, struct sample * const smps[], unsigned cnt);
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/** @see node_type::write */
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int kafka_write(struct vnode *n, struct sample * const smps[], unsigned cnt);
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/** @} */
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