JChannel.Connect()

1.

JChannel calls ProtocolStack.Start()

2.

Start sends a START event from bottom of the stack upwards

3.

UDP initializes its sockets (unicast and multicast). From now on, it is able to receive messages. Then it sends a SET_LOCAL_ADDRESS event up the stack. This allows various layers to cache the local address of the stack. Then it sends a START_OK event up the stack.

4.

When ProtocolStack.Start receives the START_OK, it returns. (Note that there is also a timeout, if it expires, ProtocolStack.Start throws an exception)

5.

JChannel sends down a CONNECT event, waits for CONNECT_OK

6.

Various layers process this event and pass it down

7.

GMS passes the event down. Then it establishes the initial membership. Finally it passes up a CONNECT_OK event.

8.

JChannel.Connect() waits for CONNECT_OK event, or, it the timeout expires, returns without having received a CONNECT_OK.