Class: Celluloid::Future

Inherits:
Object show all
Defined in:
lib/vendor/celluloid/lib/celluloid/future.rb

Overview

Celluloid::Future objects allow methods and blocks to run in the background, their values requested later

Defined Under Namespace

Classes: Runner

Instance Method Summary collapse

Constructor Details

#initialize(*args, &block) ⇒ Future

Create a new Celluloid::Future object, allowing a block to be computed in the background and its return value obtained later



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# File 'lib/vendor/celluloid/lib/celluloid/future.rb', line 9

def initialize(*args, &block)
  @lock = Mutex.new
  @value_obtained = false

  @runner = Runner.new(*args, &block)
  @runner.run!
end

Instance Method Details

#value ⇒ Object Also known as: call

Obtain the value for this Future



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# File 'lib/vendor/celluloid/lib/celluloid/future.rb', line 18

def value
  @lock.synchronize do
    unless @value_obtained
      @value = @runner.value
      @runner.terminate
      @value_obtained = true
    end

    @value
  end
end