/*
* Copyright (c) 2015 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup libinet
* @{
*/
/** @file
*/
#ifndef LIBINET_INET_TCP_H
#define LIBINET_INET_TCP_H
#include <fibril_synch.h>
#include <inet/addr.h>
#include <inet/endpoint.h>
#include <inet/inet.h>
/** TCP connection */
typedef struct {
fibril_mutex_t lock;
fibril_condvar_t cv;
struct tcp *tcp;
link_t ltcp;
sysarg_t id;
struct tcp_cb *cb;
void *cb_arg;
/** Some received data available in TCP server */
bool data_avail;
bool connected;
bool conn_failed;
bool conn_reset;
} tcp_conn_t;
/** TCP connection listener */
typedef struct {
struct tcp *tcp;
link_t ltcp;
sysarg_t id;
struct tcp_listen_cb *lcb;
void *lcb_arg;
struct tcp_cb *cb;
void *cb_arg;
} tcp_listener_t;
/** TCP connection callbacks */
typedef struct tcp_cb {
void (*connected)(tcp_conn_t *);
void (*conn_failed)(tcp_conn_t *);
void (*conn_reset)(tcp_conn_t *);
void (*data_avail)(tcp_conn_t *);
void (*urg_data)(tcp_conn_t *);
} tcp_cb_t;
/** TCP listener callbacks */
typedef struct tcp_listen_cb {
void (*new_conn)(tcp_listener_t *, tcp_conn_t *);
} tcp_listen_cb_t;
/** TCP service */
typedef struct tcp {
/** TCP session */
async_sess_t *sess;
/** List of connections */
list_t conn; /* of tcp_conn_t */
/** List of listeners */
list_t listener; /* of tcp_listener_t */
/** TCP service lock */
fibril_mutex_t lock;
/** For waiting on cb_done */
fibril_condvar_t cv;
/** Set to @a true when callback connection handler has terminated */
bool cb_done;
} tcp_t;
extern errno_t tcp_create(tcp_t **);
extern void tcp_destroy(tcp_t *);
extern errno_t tcp_conn_create(tcp_t *, inet_ep2_t *, tcp_cb_t *, void *,
tcp_conn_t **);
extern void tcp_conn_destroy(tcp_conn_t *);
extern void *tcp_conn_userptr(tcp_conn_t *);
extern errno_t tcp_listener_create(tcp_t *, inet_ep_t *, tcp_listen_cb_t *, void *,
tcp_cb_t *, void *, tcp_listener_t **);
extern void tcp_listener_destroy(tcp_listener_t *);
extern void *tcp_listener_userptr(tcp_listener_t *);
extern errno_t tcp_conn_wait_connected(tcp_conn_t *);
extern errno_t tcp_conn_send(tcp_conn_t *, const void *, size_t);
extern errno_t tcp_conn_send_fin(tcp_conn_t *);
extern errno_t tcp_conn_push(tcp_conn_t *);
extern errno_t tcp_conn_reset(tcp_conn_t *);
extern errno_t tcp_conn_recv(tcp_conn_t *, void *, size_t, size_t *);
extern errno_t tcp_conn_recv_wait(tcp_conn_t *, void *, size_t, size_t *);
#endif
/** @}
*/