Class Rinda::RingFinger
In: lib/rinda/ring.rb
Parent: 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.

Methods

each   finger   lookup_ring   lookup_ring_any   new   primary   to_a   to_a  

Attributes

broadcast_list  [RW]  The list of addresses where RingFinger will send query packets.
port  [RW]  The port that RingFinger will send query packets to.
primary  [RW]  Contain the first advertised TupleSpace after lookup_ring_any is called.

Public Class methods

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.

Public Instance methods

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.

[Validate]

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