dn_tcp.c File Reference

#include "stdint.h"
#include <string.h>
#include "dn_additional.h"
#include "dn_common.h"
#include "dn_device.h"
#include "dn_socket.h"
#include "dn_tcp.h"

Include dependency graph for dn_tcp.c:

Go to the source code of this file.

Functions
HRESULT	tcp_accept (int sock, int *client)
	TCP server accepts a TCP client.
HRESULT	tcp_clear (int sock, uint32_t timeout)
	Clears the received buffer.
HRESULT	tcp_close (int *sock)
	Closes the socket.
HRESULT	tcp_open_client (void *param, int *sock)
	Opens TCP client.
HRESULT	tcp_open_server (void *param, int *sock)
	Opens TCP server.
HRESULT	tcp_recv (int sock, char *buf, uint32_t len_buf, uint32_t *len_recved, uint32_t timeout, void *arg)
	Receives TCP packet.
HRESULT	tcp_send (int sock, const char *buf, uint32_t len_buf, void *arg)
	Sends TCP packet.
HRESULT	tcp_set_keepalive (int sock, int enable, uint32_t idle, uint32_t interval, uint32_t count)
	Sets keep alive option.
HRESULT	tcp_set_nodelay (int sock, int enable)
	Sets no delay option.
HRESULT	tcp_set_timeout (int sock, uint32_t timeout)
	Sets timeout value to the TCP socket.
Variables
uint32_t	tcp_conn_timeout

---

Function Documentation

HRESULT tcp_accept	(	int	sock,
		int *	client
	)

TCP server accepts a TCP client.

Parameters:

[in]	sock	The TCP server socket.
[out]	client	The socket of the accepted TCP client.

Note:

This function is not thread safe.

Must take mutex among socket_open, socket_close and tcp_accept.

Definition at line 448 of file dn_tcp.c.

HRESULT tcp_clear	(	int	sock,
		uint32_t	timeout
	)

Clears the received buffer.

Parameters:

[in]	sock	The socket to be cleared.
[in]	timeout	Timeout value.

Definition at line 417 of file dn_tcp.c.

HRESULT tcp_close

(

int *

sock

)

Closes the socket.

Parameters:

[in,out]

sock

The socket to be closed.

Definition at line 305 of file dn_tcp.c.

HRESULT tcp_open_client	(	void *	param,
		int *	sock
	)

Opens TCP client.

Parameters:

[in]	param	The pointer of Ethernet connection parameters: CONN_PARAM_ETH.
[out]	sock	The created socket.

Definition at line 107 of file dn_tcp.c.

HRESULT tcp_open_server	(	void *	param,
		int *	sock
	)

Opens TCP server.

Parameters:

[in]	param	The pointer of Ethernet connection parameters: CONN_PARAM_ETH.
[out]	sock	The created socket.

Definition at line 254 of file dn_tcp.c.

HRESULT tcp_recv	(	int	sock,
		char *	buf,
		uint32_t	len_buf,
		uint32_t *	len_recved,
		uint32_t	timeout,
		void *	arg
	)

Receives TCP packet.

Parameters:

[in]	sock	The socket to receive.
[out]	buf	The buffer to be received.
[in]	len_buf	The allocated size of received buffer.
[out]	len_recved	The size of received buffer.
[in]	arg	Special parameter: int.

Definition at line 364 of file dn_tcp.c.

HRESULT tcp_send	(	int	sock,
		const char *	buf,
		uint32_t	len_buf,
		void *	arg
	)

Sends TCP packet.

Parameters:

[in]	sock	The socket to send.
[in]	buf	The buffer to be sent.
[in]	len_buf	The size of sent buffer.
[in]	arg	Special parameter: int.

Definition at line 319 of file dn_tcp.c.

HRESULT tcp_set_keepalive	(	int	sock,
		int	enable,
		uint32_t	idle,
		uint32_t	interval,
		uint32_t	count
	)

Sets keep alive option.

Parameters:

[in]	sock	The TCP socket.
[in]	enable	Enable option. 0: disable, 1: enable.
[in]	idle	Idle time until sending keep alive packet.
[in]	interval	Interval time between keep alive packet.
[in]	count	The number of sending keep alive packet.

Definition at line 485 of file dn_tcp.c.

HRESULT tcp_set_nodelay	(	int	sock,
		int	enable
	)

Sets no delay option.

Parameters:

[in]	sock	The TCP socket.
[in]	enable	Enable option. 0: disable, 1: enable.

Definition at line 500 of file dn_tcp.c.

HRESULT tcp_set_timeout	(	int	sock,
		uint32_t	timeout
	)

Sets timeout value to the TCP socket.

Parameters:

[in]	sock	The socket to be set.
[in]	timeout	Timeout value.

Definition at line 405 of file dn_tcp.c.

---

Variable Documentation

uint32_t tcp_conn_timeout

Software License Agreement (MIT License)

Copyright:

Copyright (c) 2015 DENSO WAVE INCORPORATED

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Definition at line 47 of file dn_tcp.c.