urg_tcpclient.c File Reference

TCP/IP read/write functions. More...

#include "urg_c/urg_detect_os.h"
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include "urg_c/urg_tcpclient.h"
#include <stdio.h>

Include dependency graph for urg_tcpclient.c:

Go to the source code of this file.

Enumerations
enum	{ Invalid_desc = -1 }
Functions
static void	set_block_mode (urg_tcpclient_t *cli)
static int	tcpclient_buffer_data_num (urg_tcpclient_t *cli)
static void	tcpclient_buffer_init (urg_tcpclient_t *cli)
static int	tcpclient_buffer_read (urg_tcpclient_t *cli, char *data, int size)
static int	tcpclient_buffer_write (urg_tcpclient_t *cli, const char *data, int size)
void	tcpclient_close (urg_tcpclient_t *cli)
	destructor of tcp client module
int	tcpclient_error (urg_tcpclient_t *cli, char *error_message, int max_size)
int	tcpclient_open (urg_tcpclient_t *cli, const char *ip_str, int port_num)
	constructor of tcp client module
int	tcpclient_read (urg_tcpclient_t *cli, char *userbuf, int req_size, int timeout)
	read from socket.
int	tcpclient_readline (urg_tcpclient_t *cli, char *userbuf, int buf_size, int timeout)
	read one line from socket.
int	tcpclient_write (urg_tcpclient_t *cli, const char *buf, int size)
	write to socket.

---

Detailed Description

TCP/IP read/write functions.

Author:

Katsumi Kimoto

Id:

urg_tcpclient.c,v d746d6f9127d 2011/05/08 23:10:44 satofumi

Definition in file urg_tcpclient.c.

---

Enumeration Type Documentation

anonymous enum

Enumerator:

Invalid_desc

Definition at line 24 of file urg_tcpclient.c.

---

Function Documentation

static void set_block_mode

(

urg_tcpclient_t *

cli

)

[static]

Definition at line 55 of file urg_tcpclient.c.

static int tcpclient_buffer_data_num

(

urg_tcpclient_t *

cli

)

[static]

Definition at line 36 of file urg_tcpclient.c.

static void tcpclient_buffer_init

(

urg_tcpclient_t *

cli

)

[static]

Definition at line 29 of file urg_tcpclient.c.

static int tcpclient_buffer_read	(	urg_tcpclient_t *	cli,
		char *	data,
		int	size
	)		[static]

Definition at line 49 of file urg_tcpclient.c.

static int tcpclient_buffer_write	(	urg_tcpclient_t *	cli,
		const char *	data,
		int	size
	)		[static]

Definition at line 42 of file urg_tcpclient.c.

void tcpclient_close

(

urg_tcpclient_t *

cli

)

destructor of tcp client module

Parameters:

[in,out]

cli

: tcp client type variable which must be deallocated by a caller after closing.

Definition at line 192 of file urg_tcpclient.c.

int tcpclient_error	(	urg_tcpclient_t *	cli,
		char *	error_message,
		int	max_size
	)

Attention:

not implemented yet.

Definition at line 280 of file urg_tcpclient.c.

int tcpclient_open	(	urg_tcpclient_t *	cli,
		const char *	server_ip_str,
		int	port_num
	)

constructor of tcp client module

Parameters:

[in,out]	cli	tcp client type variable which must be allocated by a caller.
[in]	server_ip_str	IP address expressed in string, i.e. "192.168.0.1"
[in]	port_num	port number expressed in integer, i.e. port_num = 10200

Return values:

0	succeeded.
-1	error

Definition at line 67 of file urg_tcpclient.c.

int tcpclient_read	(	urg_tcpclient_t *	cli,
		char *	userbuf,
		int	req_size,
		int	timeout
	)

read from socket.

Parameters:

[in,out]	cli	: tcp client type variable which must be deallocated by a caller after closing.
[out]	userbuf	: buffer to store read data which must be allocated by a caller.
[in]	req_size,:	data size requested to read in byte.
[in]	timeout	: time out specification which unit is microsecond.

Returns:

the number of data read, -1 when error.

Definition at line 206 of file urg_tcpclient.c.

int tcpclient_readline	(	urg_tcpclient_t *	cli,
		char *	userbuf,
		int	buf_size,
		int	timeout
	)

read one line from socket.

Parameters:

[in,out]	cli	: tcp client type variable which must be deallocated by a caller after closing.
[out]	userbuf	: buffer to store read data which must be allocated by a caller.
[in]	buf_size,:	data size requested to read in byte.
[in]	timeout	: time out specification which unit is microsecond.

Returns:

the number of data read, -1 when error.

Definition at line 292 of file urg_tcpclient.c.

int tcpclient_write	(	urg_tcpclient_t *	cli,
		const char *	userbuf,
		int	req_size
	)

write to socket.

Parameters:

[in,out]	cli	: tcp client type variable which must be deallocated by a caller after closing.
[in]	userbuf	: data to write.
[in]	req_size,:	data size requested to write in byte.

Returns:

returns the number of data wrote, -1 when error.

Definition at line 273 of file urg_tcpclient.c.