gateway.h File Reference

#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <netinet/in.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "unisasa_types.h"
#include "connector.h"
#include "configuration.h"

Go to the source code of this file.

Data Structures
union	messageInt_t

Typedefs
typedef union messageInt_t	messageInt_t

Functions
void	init_gateway ()
void	load_table (char *path)
device_t *	getDevices ()
unsigned int	getNumDevices ()
void	addConnector (connectorInterface_t newConnector)
void	discoveryAndCreateTable ()
void	verifyDevices ()
void	verifyTable ()
void	createNewTable ()
void	create_tcp_server (unsigned int port)
void	close_gateway ()
int	wait_client ()
void	client_communication (int client_sock)

Detailed Description

Gateway Implementation.

This gateway reads a request from a TCP socket, forwards it to a different network and sends the answer to the requestor.

Definition in file gateway.h.

Typedef Documentation

messageInt_t

typedef union messageInt_t messageInt_t

Union to convert int/bytes.

Internal use only.

Function Documentation

addConnector()

void addConnector

(

connectorInterface_t

newConnector

)

Add a new connector.

Parameters

connector

a connectorInterface_t implementation.

Definition at line 105 of file gateway.c.

client_communication()

void client_communication

(

int

client_sock

)

Receive requests and send answers from/to client

Parameters

socket

See also

wait_client()

Definition at line 374 of file gateway.c.

close_gateway()

void close_gateway

(

)

Close the TCP socket

Definition at line 356 of file gateway.c.

create_tcp_server()

void create_tcp_server

(

unsigned int

port

)

Create a TCP Server

Parameters

port	(11003 is unisasa default port

Definition at line 330 of file gateway.c.

createNewTable()

void createNewTable

(

)

Create a new table.

Destroy old Table and init a new table

Definition at line 318 of file gateway.c.

discoveryAndCreateTable()

void discoveryAndCreateTable

(

)

Discovery new devices and create a new Table.

All connectors added are used.

Definition at line 111 of file gateway.c.

getDevices()

device_t* getDevices

(

)

Return devices

Returns

devices

Definition at line 292 of file gateway.c.

getNumDevices()

unsigned int getNumDevices

(

)

Return devices number

Returns

numDevices

Definition at line 297 of file gateway.c.

init_gateway()

void init_gateway

(

)

Init the gateway.

This function is mandatory.

Definition at line 67 of file gateway.c.

load_table()

void load_table

(

char *

path

)

Load a table from a file

The file has the form: ID ; Address ; TypeConnector ; SizeIODevice ; SizeIDSen ; SizeIDAct ; SYMBOL_[SEN|ACT] ;* ID S/A ; Type S/A ; Size I/O ; Type I/O

Parameters

path

Definition at line 167 of file gateway.c.

verifyDevices()

void verifyDevices

(

)

Send a 'verify message' to all connected devices and update current table

Definition at line 303 of file gateway.c.

verifyTable()

void verifyTable

(

)

verifyTable alias veifyDevices()

Definition at line 313 of file gateway.c.

wait_client()

int wait_client

(

)

Wait a new client/library

Returns

client (socket)

Definition at line 363 of file gateway.c.