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 65

def ObjectTracker.configure
  @active_objects = Set.new

  ObjectSpace.each_object do |obj|
    begin
      # believe it or not, some idiots actually alter the object_id method
      @active_objects << obj.object_id
    rescue Object
      # skip this one, he's an idiot
    end
  end
end

.sample ⇒ Object 



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# File 'lib/mongrel/debug.rb', line 78

def ObjectTracker.sample
  ospace = Set.new
  counts = {}
  
  ObjectSpace.each_object do |obj|
    begin
      ospace << obj.object_id
      counts[obj.class] ||= 0
      counts[obj.class] += 1
    rescue Object
      # skip since object_id can magically get parameters
    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