Method: CountingSemaphore#signal

Defined in:
lib/carat/semaphore.rb

#signal ⇒ Object Also known as: up, v 



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# File 'lib/carat/semaphore.rb', line 38

def signal
  Thread.critical = true
  begin
    if (@counter += 1) <= 0
      t = @waiting_list.shift
      t.wakeup if t
    end
  rescue ThreadError
    retry
  end
  self
ensure
  Thread.critical = false
end