101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/**
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* @file re_tcp.h Interface to Transport Control Protocol
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*
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* Copyright (C) 2010 Creytiv.com
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*/
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struct sa;
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struct tcp_sock;
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struct tcp_conn;
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/**
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* Defines the incoming TCP connection handler
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*
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* @param peer Network address of peer
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* @param arg Handler argument
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*/
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typedef void (tcp_conn_h)(const struct sa *peer, void *arg);
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/**
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* Defines the TCP connection established handler
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*
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* @param arg Handler argument
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*/
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typedef void (tcp_estab_h)(void *arg);
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/**
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* Defines the TCP connection data send handler
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*
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* @param arg Handler argument
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*/
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typedef void (tcp_send_h)(void *arg);
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/**
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* Defines the TCP connection data receive handler
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*
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* @param mb Buffer with data
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* @param arg Handler argument
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*/
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typedef void (tcp_recv_h)(struct mbuf *mb, void *arg);
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/**
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* Defines the TCP connection close handler
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*
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* @param err Error code
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* @param arg Handler argument
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*/
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typedef void (tcp_close_h)(int err, void *arg);
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/* TCP Socket */
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int tcp_sock_alloc(struct tcp_sock **tsp, const struct sa *local,
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tcp_conn_h *ch, void *arg);
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int tcp_sock_bind(struct tcp_sock *ts, const struct sa *local);
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int tcp_sock_listen(struct tcp_sock *ts, int backlog);
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int tcp_accept(struct tcp_conn **tcp, struct tcp_sock *ts, tcp_estab_h *eh,
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tcp_recv_h *rh, tcp_close_h *ch, void *arg);
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void tcp_reject(struct tcp_sock *ts);
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int tcp_sock_local_get(const struct tcp_sock *ts, struct sa *local);
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/* TCP Connection */
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int tcp_conn_alloc(struct tcp_conn **tcp, const struct sa *peer,
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tcp_estab_h *eh, tcp_recv_h *rh, tcp_close_h *ch,
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void *arg);
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int tcp_conn_bind(struct tcp_conn *tc, const struct sa *local);
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int tcp_conn_connect(struct tcp_conn *tc, const struct sa *peer);
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int tcp_send(struct tcp_conn *tc, struct mbuf *mb);
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int tcp_set_send(struct tcp_conn *tc, tcp_send_h *sendh);
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void tcp_set_handlers(struct tcp_conn *tc, tcp_estab_h *eh, tcp_recv_h *rh,
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tcp_close_h *ch, void *arg);
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void tcp_conn_rxsz_set(struct tcp_conn *tc, size_t rxsz);
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void tcp_conn_txqsz_set(struct tcp_conn *tc, size_t txqsz);
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int tcp_conn_local_get(const struct tcp_conn *tc, struct sa *local);
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int tcp_conn_peer_get(const struct tcp_conn *tc, struct sa *peer);
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int tcp_conn_fd(const struct tcp_conn *tc);
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size_t tcp_conn_txqsz(const struct tcp_conn *tc);
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/* High-level API */
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int tcp_listen(struct tcp_sock **tsp, const struct sa *local,
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tcp_conn_h *ch, void *arg);
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int tcp_connect(struct tcp_conn **tcp, const struct sa *peer,
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tcp_estab_h *eh, tcp_recv_h *rh, tcp_close_h *ch, void *arg);
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int tcp_local_get(const struct tcp_sock *ts, struct sa *local);
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/* Helper API */
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typedef bool (tcp_helper_estab_h)(int *err, bool active, void *arg);
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typedef bool (tcp_helper_send_h)(int *err, struct mbuf *mb, void *arg);
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typedef bool (tcp_helper_recv_h)(int *err, struct mbuf *mb, bool *estab,
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void *arg);
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struct tcp_helper;
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int tcp_register_helper(struct tcp_helper **thp, struct tcp_conn *tc,
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int layer,
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tcp_helper_estab_h *eh, tcp_helper_send_h *sh,
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tcp_helper_recv_h *rh, void *arg);
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int tcp_send_helper(struct tcp_conn *tc, struct mbuf *mb,
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struct tcp_helper *th);
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