| James Kuszmaul | 82f6c04 | 2021-01-17 11:30:16 -0800 | [diff] [blame^] | 1 | /** |
| 2 | * @file re_udp.h Interface to User Datagram Protocol |
| 3 | * |
| 4 | * Copyright (C) 2010 Creytiv.com |
| 5 | */ |
| 6 | |
| 7 | |
| 8 | struct sa; |
| 9 | struct udp_sock; |
| 10 | |
| 11 | |
| 12 | /** |
| 13 | * Defines the UDP Receive handler |
| 14 | * |
| 15 | * @param src Source address |
| 16 | * @param mb Datagram buffer |
| 17 | * @param arg Handler argument |
| 18 | */ |
| 19 | typedef void (udp_recv_h)(const struct sa *src, struct mbuf *mb, void *arg); |
| 20 | typedef void (udp_error_h)(int err, void *arg); |
| 21 | |
| 22 | |
| 23 | int udp_listen(struct udp_sock **usp, const struct sa *local, |
| 24 | udp_recv_h *rh, void *arg); |
| 25 | int udp_connect(struct udp_sock *us, const struct sa *peer); |
| 26 | int udp_send(struct udp_sock *us, const struct sa *dst, struct mbuf *mb); |
| 27 | int udp_send_anon(const struct sa *dst, struct mbuf *mb); |
| 28 | int udp_local_get(const struct udp_sock *us, struct sa *local); |
| 29 | int udp_setsockopt(struct udp_sock *us, int level, int optname, |
| 30 | const void *optval, uint32_t optlen); |
| 31 | int udp_sockbuf_set(struct udp_sock *us, int size); |
| 32 | void udp_rxsz_set(struct udp_sock *us, size_t rxsz); |
| 33 | void udp_rxbuf_presz_set(struct udp_sock *us, size_t rx_presz); |
| 34 | void udp_handler_set(struct udp_sock *us, udp_recv_h *rh, void *arg); |
| 35 | void udp_error_handler_set(struct udp_sock *us, udp_error_h *eh); |
| 36 | int udp_thread_attach(struct udp_sock *us); |
| 37 | void udp_thread_detach(struct udp_sock *us); |
| 38 | int udp_sock_fd(const struct udp_sock *us, int af); |
| 39 | |
| 40 | int udp_multicast_join(struct udp_sock *us, const struct sa *group); |
| 41 | int udp_multicast_leave(struct udp_sock *us, const struct sa *group); |
| 42 | |
| 43 | |
| 44 | /* Helper API */ |
| 45 | typedef bool (udp_helper_send_h)(int *err, struct sa *dst, |
| 46 | struct mbuf *mb, void *arg); |
| 47 | typedef bool (udp_helper_recv_h)(struct sa *src, |
| 48 | struct mbuf *mb, void *arg); |
| 49 | |
| 50 | struct udp_helper; |
| 51 | |
| 52 | |
| 53 | int udp_register_helper(struct udp_helper **uhp, struct udp_sock *us, |
| 54 | int layer, |
| 55 | udp_helper_send_h *sh, udp_helper_recv_h *rh, |
| 56 | void *arg); |
| 57 | int udp_send_helper(struct udp_sock *us, const struct sa *dst, |
| 58 | struct mbuf *mb, struct udp_helper *uh); |
| 59 | struct udp_helper *udp_helper_find(const struct udp_sock *us, int layer); |