Module: RateThrottle

Defined in:
lib/rate_throttle.rb

Overview

Example

# throttling 10% workload.
10000.times do 
  RateThrottle.throttle(0.1) do
    # do something
  end
end

Class Method Summary collapse

Class Method Details

.calc_sleep_time(rate, time) ⇒ Object 



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# File 'lib/rate_throttle.rb', line 18

def self.calc_sleep_time(rate, time)
  if time > 0.0
    return time * ( 1- rate ) / rate
  else
    return 0
  end
end

.throttle(rate, &block) ⇒ Object 



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# File 'lib/rate_throttle.rb', line 11

def self.throttle(rate, &block)
  start = Time.now
  block.call
  sleep_time = self.calc_sleep_time(rate, Time.now - start)
  sleep(sleep_time)
end