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VILLASnode/include/villas/nodes/socket.hpp
Jitpanu Maneeratpongsuk 7a2d689199 fix: Add error checking
fix: Naming and comment

fix: Remove socket_tcp_connection from header file
Signed-off-by: Jitpanu Maneeratpongsuk <jitpanu.maneeratpongsuk@rwth-aachen.de>
2025-02-04 13:42:06 +01:00

76 lines
1.9 KiB
C++

/* The socket node-type for Layer 2, 3, 4 BSD-style sockets.
*
* Author: Steffen Vogel <post@steffenvogel.de>
* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <villas/format.hpp>
#include <villas/node/config.hpp>
#include <villas/socket_addr.hpp>
namespace villas {
namespace node {
// Forward declarations
class NodeCompat;
// The maximum length of a packet which contains stuct msg.
#define SOCKET_INITIAL_BUFFER_LEN (64 * 1024)
struct Socket {
int sd; // The socket descriptor
int clt_sd; // TCP client socket descriptor
int verify_source; // Verify the source address of incoming packets against socket::remote.
bool tcp_connected = false; // TCP connection status bit
enum SocketLayer
layer; // The OSI / IP layer which should be used for this socket
Format *formatter;
// Multicast options
struct multicast {
int enabled; // Is multicast enabled?
unsigned char loop; // Loopback multicast packets to local host?
unsigned char ttl; // The time to live for multicast packets.
struct ip_mreq mreq; // A multicast group to join.
} multicast;
struct {
char *buf; // Buffer for receiving messages
size_t buflen;
union sockaddr_union saddr; // Remote address of the socket
} in, out;
};
int socket_type_start(SuperNode *sn);
int socket_type_stop();
int socket_init(NodeCompat *n);
int socket_destroy(NodeCompat *n);
int socket_start(NodeCompat *n);
int socket_check(NodeCompat *n);
int socket_stop(NodeCompat *n);
int socket_reverse(NodeCompat *n);
int socket_fds(NodeCompat *n, int fds[]);
int socket_write(NodeCompat *n, struct Sample *const smps[], unsigned cnt);
int socket_read(NodeCompat *n, struct Sample *const smps[], unsigned cnt);
int socket_parse(NodeCompat *n, json_t *json);
char *socket_print(NodeCompat *n);
} // namespace node
} // namespace villas