org.jitsi.sctp4j

Class Sctp

java.lang.Object

org.jitsi.sctp4j.Sctp

public class Sctp
extends Object

Class encapsulates native SCTP counterpart.

Author:

Pawel Domas

Field Summary

Fields

Modifier and Type	Field and Description
static int	MSG_NOTIFICATION SCTP notification

Constructor Summary

Constructors

Constructor and Description
Sctp()

Method Summary

Modifier and Type	Method and Description
static SctpSocket	createSocket(int localPort) Creates new SctpSocket for given SCTP port.
static void	finish() Disposes of the resources held by native counterpart.
static void	init() Initializes native SCTP counterpart.
static void	onSctpInboundPacket(long socketAddr, byte[] data, int sid, int ssn, int tsn, long ppid, int context, int flags) Method fired by native counterpart to notify about incoming data.
static int	onSctpOutboundPacket(long socketAddr, byte[] data, int tos, int set_df) Method fired by native counterpart when SCTP stack wants to send network packet.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MSG_NOTIFICATION

public static final int MSG_NOTIFICATION

SCTP notification

See Also:

Constant Field Values

Constructor Detail

Sctp

public Sctp()

Method Detail

createSocket

public static SctpSocket createSocket(int localPort)

Creates new SctpSocket for given SCTP port. Allocates native resources bound to the socket.

Parameters:

localPort - local SCTP socket port.

Returns:

new SctpSocket for given SCTP port.

finish

public static void finish()
                   throws IOException

Disposes of the resources held by native counterpart.

Throws:

IOException - if usrsctp stack has failed to shutdown.

init

public static void init()

Initializes native SCTP counterpart.

onSctpInboundPacket

public static void onSctpInboundPacket(long socketAddr,
                                       byte[] data,
                                       int sid,
                                       int ssn,
                                       int tsn,
                                       long ppid,
                                       int context,
                                       int flags)

Method fired by native counterpart to notify about incoming data.

Parameters:

socketAddr - native socket pointer

data - buffer holding received data

sid - stream id

ssn -

tsn -

ppid - payload protocol identifier

context -

flags -

onSctpOutboundPacket

public static int onSctpOutboundPacket(long socketAddr,
                                       byte[] data,
                                       int tos,
                                       int set_df)

Method fired by native counterpart when SCTP stack wants to send network packet.

Parameters:

socketAddr - native socket pointer

data - buffer holding packet data

tos - type of service???

set_df - use IP don't fragment option

Returns:

0 if the packet has been successfully sent or -1 otherwise.