#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include "opener_api.h"
#include "typedefs.h"
#include "endianconv.h"
#include "cipconnectionmanager.h"
#include "networkhandler.h"
#include "appcontype.h"
#include "socket_timer.h"

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Data Structures
struct	NetworkStatus
	Struct representing the current network status. More...

Functions
EipBool8	CheckSocketSet (int socket)
	check if the given socket is set in the read set More...

void	CloseTcpSocket (int socket_handle)

void	CloseUdpSocket (int socket_handle)

int	GetMaxSocket (int socket1, int socket2, int socket3, int socket4)
	Returns the socket with the highest id. More...

EipStatus	NetworkHandlerFinish (void)

EipStatus	NetworkHandlerInitialize (void)
	The platform independent part of network handler initialization routine. More...

EipStatus	NetworkHandlerProcessOnce (void)

Variables
MilliSeconds	g_actual_time

int	g_current_active_tcp_socket
	This variable holds the TCP socket the received to last explicit message. It is needed for opening point to point connection to determine the peer's address. More...

MilliSeconds	g_last_time

NetworkStatus	g_network_status

struct timeval	g_time_value

SocketTimer	g_timestamps [OPENER_NUMBER_OF_SUPPORTED_SESSIONS]

int	highest_socket_handle

fd_set	master_socket

fd_set	read_socket

Function Documentation

EipBool8 CheckSocketSet ( int socket )

check if the given socket is set in the read set

Parameters

socket The socket to check

Returns: true if socket is set

Definition at line 278 of file generic_networkhandler.c.

References master_socket, OPENER_TRACE_INFO, and read_socket.

Referenced by CheckAndHandleConsumingUdpSockets(), CheckAndHandleTcpListenerSocket(), CheckAndHandleUdpGlobalBroadcastSocket(), CheckAndHandleUdpUnicastSocket(), and NetworkHandlerProcessOnce().

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void CloseTcpSocket ( int socket_handle )

Definition at line 261 of file generic_networkhandler.c.

References CloseSocket(), and RemoveSocketTimerFromList().

Referenced by CheckEncapsulationInactivity(), CloseSession(), CloseSessionBySessionHandle(), EncapsulationShutDown(), HandleReceivedUnregisterSessionCommand(), and NetworkHandlerProcessOnce().

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void CloseUdpSocket ( int socket_handle )

Definition at line 257 of file generic_networkhandler.c.

References CloseSocket().

Referenced by CloseCommunicationChannelsAndRemoveFromActiveConnectionsList(), and CloseConnection().

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int GetMaxSocket	(	int	socket1,
		int	socket2,
		int	socket3,
		int	socket4
	)

Returns the socket with the highest id.

Parameters

socket1	First socket
socket2	Second socket
socket3	Third socket
socket4	Fourth socket

Returns: Highest socket id from the provided sockets

Definition at line 1008 of file generic_networkhandler.c.

Referenced by NetworkHandlerInitialize().

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EipStatus NetworkHandlerFinish ( void )

Definition at line 419 of file generic_networkhandler.c.

References CloseSocket(), g_network_status, kEipStatusOk, NetworkStatus::tcp_listener, NetworkStatus::udp_global_broadcast_listener, and NetworkStatus::udp_unicast_listener.

Referenced by main().

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EipStatus NetworkHandlerInitialize ( void )

The platform independent part of network handler initialization routine.

Initializes the network handler, shall be implemented by a port-specific networkhandler.

Returns: Returns the OpENer status after the initialization routine; EipStatus, if initialization failed EipError is returned

The platform independent part of network handler initialization routine.

Returns: EipStatus, if initialization failed EipError is returned

Definition at line 67 of file generic_networkhandler.c.

References NetworkStatus::elapsed_time, FreeErrorMessage(), g_last_time, g_network_status, g_timestamps, GetErrorMessage(), GetMaxSocket(), GetMilliSeconds(), GetSocketErrorNumber(), highest_socket_handle, kEipStatusError, kEipStatusOk, master_socket, MAX_NO_OF_TCP_SOCKETS, NetworkHandlerInitializePlatform(), OPENER_NUMBER_OF_SUPPORTED_SESSIONS, OPENER_TRACE_ERR, read_socket, SetSocketToNonBlocking(), cip_connection_object::socket, SocketTimerArrayInitialize(), NetworkStatus::tcp_listener, NetworkStatus::udp_global_broadcast_listener, and NetworkStatus::udp_unicast_listener.

Referenced by main().

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EipStatus NetworkHandlerProcessOnce ( void )

Definition at line 347 of file generic_networkhandler.c.

References CheckAndHandleConsumingUdpSockets(), CheckAndHandleTcpListenerSocket(), CheckAndHandleUdpGlobalBroadcastSocket(), CheckAndHandleUdpUnicastSocket(), CheckEncapsulationInactivity(), CheckSocketSet(), CloseTcpSocket(), NetworkStatus::elapsed_time, FreeErrorMessage(), g_actual_time, g_last_time, g_network_status, g_time_value, GetErrorMessage(), GetMilliSeconds(), GetSocketErrorNumber(), HandleDataOnTcpSocket(), highest_socket_handle, kEipStatusError, kEipStatusOk, ManageConnections(), master_socket, OPENER_TRACE_ERR, read_socket, and RemoveSession().

Referenced by executeEventLoop(), and main().

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Variable Documentation

MilliSeconds g_actual_time

Definition at line 46 of file generic_networkhandler.h.

Referenced by CheckEncapsulationInactivity(), HandleDataOnTcpSocket(), HandleReceivedRegisterSessionCommand(), and NetworkHandlerProcessOnce().

int g_current_active_tcp_socket

This variable holds the TCP socket the received to last explicit message. It is needed for opening point to point connection to determine the peer's address.

Definition at line 43 of file generic_networkhandler.h.

Referenced by CreateUdpSocket(), and HandleDataOnTcpSocket().

MilliSeconds g_last_time

Definition at line 47 of file generic_networkhandler.h.

Referenced by NetworkHandlerInitialize(), and NetworkHandlerProcessOnce().

NetworkStatus g_network_status

Global variable holding the current network status

Definition at line 58 of file generic_networkhandler.h.

Referenced by CheckAndHandleTcpListenerSocket(), CheckAndHandleUdpGlobalBroadcastSocket(), CheckAndHandleUdpUnicastSocket(), NetworkHandlerFinish(), NetworkHandlerInitialize(), and NetworkHandlerProcessOnce().

struct timeval g_time_value

Definition at line 45 of file generic_networkhandler.h.

Referenced by NetworkHandlerProcessOnce().