Kamaelia.Internet.Multicast_receiver

• component Multicast_receiver

• Simple multicast receiver
  • Example Usage
  • More detail

Simple multicast receiver

A simple component for receiving packets in the specified multicast group.

Remember that multicast is an unreliable connection - packets may be lost, duplicated or reordered.

Example Usage

Receiving multicast packets from group address 1.2.3.4 port 1000 and displaying them on the console:

Pipeline( Multicast_receiver("1.2.3.4", 1000),
          ConsoleEchoer()
        ).activate()

The data emitted by Multicast_receiver (and displayed by ConsoleEchoer) is of the form (source_address, data).

More detail

Data received from the multicast group is emitted as a tuple: (source_addr, data) where data is a string of the received data.

This component ignores anything received on its "control" inbox. It is not yet possible to ask it to shut down. It does not terminate.

Multicast groups do not 'shut down', so this component never emits any signals on its "signal" outbox.

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Kamaelia.Internet.Multicast_receiver.Multicast_receiver

class Multicast_receiver(Axon.Component.component)

Multicast_receiver(address, port) -> component that receives multicast traffic.

Creates a component that receives multicast packets in the given multicast group and sends it out of its "outbox" outbox.

Keyword arguments:

• address -- address of multicast group (string)
• port -- port number

Inboxes

• control : NOT USED
• inbox : NOT USED

Outboxes

• outbox : Emits (src_addr, data_received)
• signal : NOT USED

Methods defined here

__init__(self, address, port)

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

main(self)

Main loop