168 lines
4.8 KiB
C
168 lines
4.8 KiB
C
/*
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* $Id$
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*
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Copyright (c) 2015-2016 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WAfRRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _STIO_TCP_H_
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#define _STIO_TCP_H_
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#include <stio.h>
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#include <stio-sck.h>
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enum stio_dev_tcp_ioctl_cmd_t
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{
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STIO_DEV_TCP_BIND,
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STIO_DEV_TCP_CONNECT,
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STIO_DEV_TCP_LISTEN
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};
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typedef enum stio_dev_tcp_ioctl_cmd_t stio_dev_tcp_ioctl_cmd_t;
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enum stio_dev_tcp_state_t
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{
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STIO_DEV_TCP_CONNECTING = (1 << 0),
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STIO_DEV_TCP_CONNECTED = (1 << 1),
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STIO_DEV_TCP_LISTENING = (1 << 2),
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STIO_DEV_TCP_ACCEPTED = (1 << 3)
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};
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typedef enum stio_dev_tcp_state_t stio_dev_tcp_state_t;
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typedef struct stio_dev_tcp_t stio_dev_tcp_t;
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typedef int (*stio_dev_tcp_on_connect_t) (stio_dev_tcp_t* dev);
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typedef void (*stio_dev_tcp_on_accepted_t) (stio_dev_tcp_t* dev, stio_dev_tcp_t* clidev);
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typedef void (*stio_dev_tcp_on_disconnect_t) (stio_dev_tcp_t* dev);
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typedef int (*stio_dev_tcp_on_read_t) (stio_dev_tcp_t* dev, const void* data, stio_len_t len);
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typedef int (*stio_dev_tcp_on_write_t) (stio_dev_tcp_t* dev, void* wrctx);
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struct stio_dev_tcp_t
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{
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STIO_DEV_HEADERS;
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stio_sckhnd_t sck;
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/* bitwised-ORed of #stio_dev_tcp_state_t enumerators */
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int state;
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/* peer address - valid if one of the followings is set:
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* STIO_DEV_TCP_ACCEPTED
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* STIO_DEV_TCP_CONNECTED
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* STIO_DEV_TCP_CONNECTING */
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stio_sckadr_t peer;
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/** return 0 on succes, -1 on failure/
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* called on a new tcp device for an accepted client or
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* on a tcp device conntected to a remote server */
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stio_dev_tcp_on_connect_t on_connect;
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stio_dev_tcp_on_disconnect_t on_disconnect;
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stio_dev_tcp_on_read_t on_read;
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stio_dev_tcp_on_write_t on_write;
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stio_tmridx_t tmridx_connect;
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};
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typedef struct stio_dev_tcp_make_t stio_dev_tcp_make_t;
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struct stio_dev_tcp_make_t
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{
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/* TODO: options: REUSEADDR for binding?? */
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stio_sckadr_t addr; /* binding address. */
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stio_dev_tcp_on_write_t on_write;
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stio_dev_tcp_on_read_t on_read;
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};
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typedef struct stio_dev_tcp_bind_t stio_dev_tcp_bind_t;
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struct stio_dev_tcp_bind_t
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{
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int opts; /* TODO: REUSEADDR , TRANSPARENT, etc or someting?? */
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stio_sckadr_t addr;
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/* TODO: add device name for BIND_TO_DEVICE */
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};
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typedef struct stio_dev_tcp_connect_t stio_dev_tcp_connect_t;
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struct stio_dev_tcp_connect_t
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{
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stio_sckadr_t addr;
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stio_ntime_t timeout; /* connect timeout */
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stio_dev_tcp_on_connect_t on_connect;
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stio_dev_tcp_on_disconnect_t on_disconnect;
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};
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typedef struct stio_dev_tcp_listen_t stio_dev_tcp_listen_t;
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struct stio_dev_tcp_listen_t
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{
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int backlogs;
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stio_dev_tcp_on_connect_t on_connect; /* optional, but new connections are dropped immediately without this */
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stio_dev_tcp_on_disconnect_t on_disconnect; /* should on_discconneted be part of on_accept_t??? */
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};
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typedef struct stio_dev_tcp_accept_t stio_dev_tcp_accept_t;
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struct stio_dev_tcp_accept_t
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{
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stio_syshnd_t sck;
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/* TODO: add timeout */
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stio_sckadr_t peer;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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STIO_EXPORT stio_dev_tcp_t* stio_dev_tcp_make (
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stio_t* stio,
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stio_size_t xtnsize,
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const stio_dev_tcp_make_t* data
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);
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STIO_EXPORT int stio_dev_tcp_bind (
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stio_dev_tcp_t* tcp,
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stio_dev_tcp_bind_t* bind
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);
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STIO_EXPORT int stio_dev_tcp_connect (
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stio_dev_tcp_t* tcp,
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stio_dev_tcp_connect_t* conn);
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STIO_EXPORT int stio_dev_tcp_listen (
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stio_dev_tcp_t* tcp,
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stio_dev_tcp_listen_t* lstn
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);
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STIO_EXPORT int stio_dev_tcp_write (
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stio_dev_tcp_t* tcp,
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const void* data,
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stio_len_t len,
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void* wrctx
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);
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STIO_EXPORT int stio_dev_tcp_halt (
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stio_dev_tcp_t* tcp
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);
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#ifdef __cplusplus
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}
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#endif
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#endif
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