Class: Skylight::GC Private

Inherits:
Object show all
Includes:
Util::Logging
Defined in:
lib/skylight/gc.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Defined Under Namespace

Classes: Window

Constant Summary collapse

METHODS =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

[ :enable, :total_time ]
TH_KEY =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

:SK_GC_CURR_WINDOW
MAX_COUNT =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

1000
MAX_TIME =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

30_000_000

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Util::Logging

#debug, #error, #info, #log, #t, #trace, trace?, #warn

Constructor Details

#initialize(config, profiler) ⇒ GC

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of GC.



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# File 'lib/skylight/gc.rb', line 15

def initialize(config, profiler)
  @listeners = []
  @config    = config
  @lock      = Mutex.new
  @time      = 0

  if METHODS.all? { |m| profiler.respond_to?(m) }
    @profiler = profiler
    @time = @profiler.total_time
  else
    debug "disabling GC profiling"
  end
end

Instance Attribute Details

#config ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/skylight/gc.rb', line 13

def config
  @config
end

Instance Method Details

#enable ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/skylight/gc.rb', line 29

def enable
  @profiler.enable if @profiler
end

#release(win) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/skylight/gc.rb', line 57

def release(win)
  @lock.synchronize do
    @listeners.delete(win)
  end
end

#track ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/skylight/gc.rb', line 33

def track
  unless @profiler
    win = Window.new(nil)
  else
    win = Window.new(self)

    @lock.synchronize do
      __update
      @listeners << win

      # Cleanup any listeners that might have leaked
      until @listeners[0].time < MAX_TIME
        @listeners.shift
      end

      if @listeners.length > MAX_COUNT
        @listeners.shift
      end
    end
  end

  win
end

#update ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/skylight/gc.rb', line 63

def update
  @lock.synchronize do
    __update
  end

  nil
end