Class: Engine

Inherits:
Object
  • Object
show all
Defined in:
lib/delve/engine.rb

Instance Method Summary collapse

Constructor Details

#initialize(scheduler) ⇒ Engine

Returns a new instance of Engine.



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# File 'lib/delve/engine.rb', line 3

def initialize scheduler
  raise 'Cannot initialize engine when scheduler is nil' unless scheduler
  @scheduler = scheduler
  @lock = 1
end

Instance Method Details

#lock ⇒ Object 



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# File 'lib/delve/engine.rb', line 13

def lock
  @lock += 1
end

#locked? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/delve/engine.rb', line 9

def locked?
  @lock > 0
end

#unlock ⇒ Object 



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# File 'lib/delve/engine.rb', line 17

def unlock
  @lock -= 1

  while !locked? do
    actor = @scheduler.next
    if !actor
      lock
      break
    end
    actor.act
  end
end