Class: Ractor::Dispatch::Future

Inherits:
Object
  • Object
show all
Defined in:
lib/ractor/dispatch/future.rb

Instance Method Summary collapse

Constructor Details

#initialize(port) ⇒ Future

Returns a new instance of Future.



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# File 'lib/ractor/dispatch/future.rb', line 6

def initialize(port)
  @port = port
  @mutex = Mutex.new
end

Instance Method Details

#resolved? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ractor/dispatch/future.rb', line 29

def resolved?
  @mutex.synchronize { defined?(@resolved) }
end

#value ⇒ Object

Raises:

  • (@error) 


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# File 'lib/ractor/dispatch/future.rb', line 11

def value
  @mutex.synchronize do
    unless defined?(@resolved)
      @resolved = true
      status, val = @port.receive
      @port.close
      if status == :error
        @error = val
      else
        @value = val
      end
    end
  end

  raise @error if @error
  @value
end