VILLASnode/include/villas/nodes/zeromq.hpp

/** Node type: ZeroMQ
 *
 * @file
 * @author Steffen Vogel <post@steffenvogel.de>
 * @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
 * @license Apache 2.0
 *********************************************************************************/

#pragma once

#include <cstdint>
#include <jansson.h>

#include <villas/super_node.hpp>
#include <villas/list.hpp>
#include <villas/format.hpp>

#if ZMQ_BUILD_DRAFT_API && (ZMQ_VERSION_MAJOR > 4 || (ZMQ_VERSION_MAJOR == 4 && ZMQ_VERSION_MINOR >= 2))
  #define ZMQ_BUILD_DISH 1
#endif

namespace villas {
namespace node {

/* Forward declarations */
class NodeCompat;
struct Sample;

struct zeromq {
	int ipv6;

	Format *formatter;

	struct Curve {
		int enabled;
		struct {
			char public_key[41];
			char secret_key[41];
		} server, client;
	} curve;

	enum class Pattern {
		PUBSUB,
#ifdef ZMQ_BUILD_DISH
		RADIODISH
#endif
	} pattern;

	struct Dir {
		void *socket;	/**< ZeroMQ socket. */
		void *mon_socket;
		struct List endpoints;
		char *filter;
		int bind, pending;
	} in, out;
};

char * zeromq_print(NodeCompat *n);

int zeromq_parse(NodeCompat *n, json_t *json);

int zeromq_type_start(SuperNode *sn);

int zeromq_type_stop();

int zeromq_init(NodeCompat *n);

int zeromq_destroy(NodeCompat *n);

int zeromq_check(NodeCompat *n);

int zeromq_start(NodeCompat *n);

int zeromq_stop(NodeCompat *n);

int zeromq_reverse(NodeCompat *n);

int zeromq_poll_fds(NodeCompat *n, int fds[]);

int zeromq_netem_fds(NodeCompat *n, int fds[]);

int zeromq_read(NodeCompat *n, struct Sample * const smps[], unsigned cnt);

int zeromq_write(NodeCompat *n, struct Sample * const smps[], unsigned cnt);

} // namespace node
} // namespace villas