Class: Actor::Messaging::Read

Inherits:
Object
  • Object
show all
Defined in:
lib/actor/messaging/read.rb,
lib/actor/messaging/read/substitute.rb

Defined Under Namespace

Classes: Substitute

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(queue, stream) ⇒ Read

Returns a new instance of Read.



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# File 'lib/actor/messaging/read.rb', line 7

def initialize queue, stream
  @queue = queue
  @stream = stream
end

Instance Attribute Details

#queue ⇒ Object (readonly)

Returns the value of attribute queue.



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# File 'lib/actor/messaging/read.rb', line 4

def queue
  @queue
end

#stream ⇒ Object (readonly)

Returns the value of attribute stream.



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# File 'lib/actor/messaging/read.rb', line 5

def stream
  @stream
end

Class Method Details

.build(address) ⇒ Object 



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# File 'lib/actor/messaging/read.rb', line 12

def self.build address
  stream = address.stream

  queue = Queue.new
  stream.add_queue queue

  instance = new queue, stream
  instance
end

.call(address, wait: nil) ⇒ Object 



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# File 'lib/actor/messaging/read.rb', line 22

def self.call address, wait: nil
  instance = build address
  instance.(wait: wait)
end

.configure(receiver, address, attr_name: nil) ⇒ Object 



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# File 'lib/actor/messaging/read.rb', line 27

def self.configure receiver, address, attr_name: nil
  attr_name ||= :reader

  instance = build address
  receiver.public_send "#{attr_name}=", instance
  instance
end

Instance Method Details

#call(wait: nil) ⇒ Object 



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# File 'lib/actor/messaging/read.rb', line 35

def call wait: nil
  if wait
    queue.deq
  else
    non_block = true

    begin
      queue.deq non_block
    rescue ThreadError
      nil
    end
  end
end

#messages_available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/actor/messaging/read.rb', line 49

def messages_available?
  not queue.empty?
end