Class: Fog::Storage::Softlayer::Memory::Analyzer

Inherits:
Object
  • Object
show all
Defined in:
lib/fog/softlayer/storage.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#result ⇒ Object (readonly)

Returns the value of attribute result.



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# File 'lib/fog/softlayer/storage.rb', line 243

def result
  @result
end

#roots ⇒ Object

Returns the value of attribute roots.



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# File 'lib/fog/softlayer/storage.rb', line 242

def roots
  @roots
end

Instance Method Details

#analyze ⇒ Object 



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# File 'lib/fog/softlayer/storage.rb', line 245

def analyze
  @result = MemoryInfo.new roots, 0, 0, 0
  @objs = {}

  queue = roots.dup

  until queue.empty?
    obj = queue.shift

    case obj
      when IO
        visit(obj)
      when String
        visit(obj) { @result.bytes += obj.size }
      when Fixnum
        @result.bytes += FIXNUM_SIZE
      when Array
        visit(obj) do
          @result.bytes += obj.size * REF_SIZE
          queue.concat(obj)
        end
      when Hash
        visit(obj) do
          @result.bytes += obj.size * REF_SIZE * 2
          obj.each {|k,v| queue.push(k).push(v)}
        end
      when Enumerable
        visit(obj) do
          obj.each do |o|
            @result.bytes += REF_SIZE
            queue.push(o)
          end
        end
      else
        visit(obj) do
          obj.instance_variables.each do |var|
            @result.bytes += REF_SIZE
            queue.push(obj.instance_variable_get(var))
          end
        end
    end
  end

  @result
end