### Home Classes Methods

### In Files

- lib/phusion_passenger/rack/out_of_band_gc.rb

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### Methods

- ::new
- #call

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# PhusionPassenger::Rack::OutOfBandGc

### Public Class Methods

new(app, frequency, logger = nil) click to toggle source

    # File lib/phusion_passenger/rack/out_of_band_gc.rb, line 30
    def initialize(app, frequency, logger = nil)
      @app = app
      @frequency = frequency
      @request_count = 0
      @mutex = Mutex.new

      ::PhusionPassenger.on_event(:oob_work) do
        t0 = Time.now
        disabled = GC.enable
        GC.start
        GC.disable if disabled
        logger.info "Out Of Band GC finished in #{Time.now - t0} sec" if logger
      end
    end

### Public Instance Methods

call(env) click to toggle source

    # File lib/phusion_passenger/rack/out_of_band_gc.rb, line 45
    def call(env)
      status, headers, body = @app.call(env)

      @mutex.synchronize do
        @request_count += 1
        if @request_count == @frequency
          @request_count = 0
          headers['X-Passenger-Request-OOB-Work'] = 'true'
        end
      end

      [status, headers, body]
    end

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