LCM.LCM.UDPMulticastProvider Class Reference

LCM provider for the udpm: URL. All messages are broadcast over a pre-arranged UDP multicast address. Subscription operations are a no-op, since all messages are always broadcast. More...

Inheritance diagram for LCM.LCM.UDPMulticastProvider:

Public Member Functions
	UDPMulticastProvider (LCM lcm, URLParser up)
	UDP multicast provider constructor.
void	Publish (string channel, byte[] data, int offset, int length)
	Publish a message.
void	Subscribe (string channel)
	Subscribe to a channel.
void	Unsubscribe (String channel)
	Unsubscribe from a channel.
void	Close ()
	Call to close the provider.
Public Member Functions inherited from LCM.LCM.Provider
void	Unsubscribe (string channel)
	Unsubscribe() will be called when a channel subscription is cancelled.

Properties
System.Net.IPAddress	InetAddr [get]
int	InetPort [get]

Detailed Description

LCM provider for the udpm: URL. All messages are broadcast over a pre-arranged UDP multicast address. Subscription operations are a no-op, since all messages are always broadcast.

This mechanism is very simple, low-latency, and efficient due to not having to transmit messages more than once when there are multiple subscribers. Since it uses UDP, it is lossy.

Constructor & Destructor Documentation

UDPMulticastProvider()

LCM.LCM.UDPMulticastProvider.UDPMulticastProvider ( LCM lcm, URLParser up )

inline

UDP multicast provider constructor.

Parameters

lcm	LCM object
up	URL parser object

Member Function Documentation

Close()

void LCM.LCM.UDPMulticastProvider.Close ( )

inline

Call to close the provider.

Implements LCM.LCM.Provider.

Publish()

void LCM.LCM.UDPMulticastProvider.Publish ( string channel, byte[] data, int offset, int length )

inline

Publish a message.

Parameters

channel	channel name
data	data byte array
offset	offset of the data to write
length	length of the data to write

Implements LCM.LCM.Provider.

Subscribe()

void LCM.LCM.UDPMulticastProvider.Subscribe ( string channel )

inline

Subscribe to a channel.

Parameters

channel

channel name

Implements LCM.LCM.Provider.

Unsubscribe()

void LCM.LCM.UDPMulticastProvider.Unsubscribe ( String channel )

inline

Unsubscribe from a channel.

Parameters

channel

channel name

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The documentation for this class was generated from the following file:

• lcm/lcm/UDPMulticastProvider.cs