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move part of isobusfs code to the libj1939

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Move part of isobusfs which can be reused by other applications to the
libj1939. By the way, reuse some of new libj1939 code in the j1939cat.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
This commit is contained in:
Oleksij Rempel
2024-06-06 13:53:19 +02:00
parent 69c1e8289d
commit af95ee0c6d
11 changed files with 314 additions and 267 deletions
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libj1939.h
+23 -1
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@@ -13,9 +13,11 @@
/* needed on some 64 bit platforms to get consistent 64-bit types */
#define __SANE_USERSPACE_TYPES__
#include <sys/socket.h>
#include <linux/can.h>
#include <linux/can/j1939.h>
#include <stdbool.h>
#include <stdint.h>
#include <sys/socket.h>
#ifndef J1939_LIB_H
#define J1939_LIB_H
@@ -24,10 +26,30 @@
extern "C" {
#endif
struct libj1939_cmn {
int epoll_fd;
struct epoll_event *epoll_events;
size_t epoll_events_size;
struct timespec next_send_time;
struct timespec last_time;
};
void libj1939_parse_canaddr(char *spec, struct sockaddr_can *paddr);
extern int libj1939_str2addr(const char *str, char **endp, struct sockaddr_can *can);
extern const char *libj1939_addr2str(const struct sockaddr_can *can);
void libj1939_init_sockaddr_can(struct sockaddr_can *sac, uint32_t pgn);
int libj1939_open_socket(void);
int libj1939_bind_socket(int sock, struct sockaddr_can *addr);
int libj1939_socket_prio(int sock, int prio);
int libj1939_set_broadcast(int sock);
int libj1939_add_socket_to_epoll(int epoll_fd, int sock, uint32_t events);
int libj1939_create_epoll(void);
int libj1939_prepare_for_events(struct libj1939_cmn *cmn, int *nfds,
bool dont_wait);
#ifdef __cplusplus
}
#endif