Class: Stud::Task

Inherits:
Object
  • Object
show all
Defined in:
lib/stud/task.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args, &block) ⇒ Task

Returns a new instance of Task.



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# File 'lib/stud/task.rb', line 5

def initialize(*args, &block)
  # A queue to receive the result of the block
  # TODO(sissel): Don't use a queue, just store it in an instance variable.
  @queue = Queue.new

  @thread = Thread.new(@queue, *args) do |queue, *args|
    begin
      result = block.call(*args)
      queue << [:return, result]
    rescue => e
      queue << [:exception, e]
    end
  end # thread
end

Class Method Details

.interrupted? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/stud/task.rb', line 36

def self.interrupted?
  Thread.current[:stud_task_interrupted]
end

Instance Method Details

#stop! ⇒ Object

def wait



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# File 'lib/stud/task.rb', line 32

def stop!
  Thread.current[:stud_task_interrupted] = true
end

#wait ⇒ Object

def initialize



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# File 'lib/stud/task.rb', line 20

def wait
  @thread.join
  reason, result = @queue.pop

  if reason == :exception
    #raise StandardError.new(result)
    raise result
  else
    return result
  end
end