- Inheritance
- < Object
RingFinger is used by RingServer clients to discover the RingServer‘s TupleSpace. Typically, all a client needs to do is call RingFinger.primary to retrieve the remote TupleSpace, which it can then begin using.
Attributes
| Name | Visibility | R/W | Description |
|---|---|---|---|
| broadcast_list | public | RW | The list of addresses where RingFinger will send query packets. |
| port | public | RW | The port that RingFinger will send query packets to. |
| primary | public | RW | Contain the first advertised TupleSpace after lookup_ring_any is called. |
Methods
Class
| Visibility | Signature |
|---|---|
| public | finger () |
| public | new (broadcast_list=@@broadcast_list, port=Ring_PORT) |
| public | primary () |
| public | to_a () |
Instance
| Visibility | Signature |
|---|---|
| public | each () {|@primary| ...} |
| public | lookup_ring (timeout=5, &block) |
| public | lookup_ring_any (timeout=5) |
| public | to_a () |
Class Method Detail
finger()
Creates a singleton RingFinger and looks for a RingServer. Returns the created RingFinger.
new(broadcast_list=@@broadcast_list, port=Ring_PORT)
Creates a new RingFinger that will look for RingServers at port on the addresses in broadcast_list.
primary()
Returns the first advertised TupleSpace.
to_a()
Contains all discoverd TupleSpaces except for the primary.
Instance Method Detail
each() {|@primary| ...}
Iterates over all discovered TupleSpaces starting with the primary.
lookup_ring(timeout=5, &block)
Looks up RingServers waiting timeout seconds. RingServers will be given block as a callback, which will be called with the remote TupleSpace.
lookup_ring_any(timeout=5)
Returns the first found remote TupleSpace. Any further recovered TupleSpaces can be found by calling to_a.
to_a()
Contains all discovered TupleSpaces except for the primary.