Constructor Detail

• Multicast

  public Multicast()

Method Detail

• join

  public static int join(long sock,
         long join,
         long iface,
         long source)

  Join a Multicast Group

  Parameters:

  sock - The socket to join a multicast group

  join - The address of the multicast group to join

  iface - Address of the interface to use. If NULL is passed, the default multicast interface will be used. (OS Dependent)

  source - Source Address to accept transmissions from (non-NULL implies Source-Specific Multicast)

• leave

  public static int leave(long sock,
          long addr,
          long iface,
          long source)

  Leave a Multicast Group. All arguments must be the same as apr_mcast_join.

  Parameters:

  sock - The socket to leave a multicast group

  addr - The address of the multicast group to leave

  iface - Address of the interface to use. If NULL is passed, the default multicast interface will be used. (OS Dependent)

  source - Source Address to accept transmissions from (non-NULL implies Source-Specific Multicast)

• hops

  public static int hops(long sock,
         int ttl)

  Set the Multicast Time to Live (ttl) for a multicast transmission.

  Parameters:

  sock - The socket to set the multicast ttl

  ttl - Time to live to Assign. 0-255, default=1
  Remark : If the TTL is 0, packets will only be seen by sockets on the local machine, and only when multicast loopback is enabled.

• loopback

  public static int loopback(long sock,
             boolean opt)

  Toggle IP Multicast Loopback

  Parameters:

  sock - The socket to set multicast loopback

  opt - false=disable, true=enable

• ointerface

  public static int ointerface(long sock,
               long iface)

  Set the Interface to be used for outgoing Multicast Transmissions.

  Parameters:

  sock - The socket to set the multicast interface on

  iface - Address of the interface to use for Multicast