Connection implementation classes and data

The implementation objects for connections. More...

Classes
class	BiDirConn
	A bidirectional (incoming and outgoing) connection. More...
class	Connection
	The top-level class for any type of connection. More...
class	Outlet
	Provides the interface to output data on a connection. More...

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Detailed Description

The implementation objects for connections.

Connection objects have the following responsibilities:

• Take a Connector, and set up a reader and writer thread to handle I/O over that Connector.
• Handle disconnection of its Connector, letting MasterController know about the event.
• Gracefully shuts down the threads and disconnect its Connector when instructed to do so.

Connections that implement writing have these additional responsibilities:

• Maintain a queue of data waiting to be written out.
• Accept Messages from other Connections or the MasterController, and act on them as appropriate. Messages containing data will cause that data to be appended to the write queue.

And, finally, Connections that implement reading have these additional responsibilities:

• Read data from the Connector, interprets it according to a configured protocol, and sends a Message containing the interpreted data or other message to all its Outlets.

In the future, Connections will also reconnect when instructed to do so.