Module: ObjectTracker

Defined in:
lib/mongrel/debug.rb

Class Method Summary collapse

Class Method Details

.configure ⇒ Object 



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# File 'lib/mongrel/debug.rb', line 48

def ObjectTracker.configure
  @active_objects = Set.new

  ObjectSpace.each_object do |obj|
    @active_objects << obj.object_id
  end
end

.sample ⇒ Object 



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# File 'lib/mongrel/debug.rb', line 65

def ObjectTracker.sample
  Class.stopit do
    ospace = Set.new
    counts = {}
    
    # Strings can't be tracked easily and are so numerous that they drown out all else
    # so we just ignore them in the counts.
    ObjectSpace.each_object do |obj|
      if not obj.kind_of? String
        ospace << obj.object_id
        counts[obj.class] ||= 0
        counts[obj.class] += 1
      end
    end
    
    dead_objects = @active_objects - ospace
    new_objects = ospace - @active_objects
    live_objects = ospace & @active_objects
    
    MongrelDbg::trace(:objects, "COUNTS: #{dead_objects.length},#{new_objects.length},#{live_objects.length}")
    
    if MongrelDbg::tracing? :objects
      top_20 = counts.sort{|a,b| b[1] <=> a[1]}[0..20]
      MongrelDbg::trace(:objects,"TOP 20: #{top_20.inspect}")
    end
    
    @active_objects = live_objects + new_objects

    [@active_objects, top_20]
  end
end

.start ⇒ Object 



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# File 'lib/mongrel/debug.rb', line 57

def ObjectTracker.start
  @live_object_tracking = true
end

.stop ⇒ Object 



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# File 'lib/mongrel/debug.rb', line 61

def ObjectTracker.stop
  @live_object_tracking = false
end