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Class: Test::Unit::Util::MemoryUsage

Relationships & Source Files
Inherits: Object
Defined in: lib/test/unit/util/memory-usage.rb

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new ⇒ MemoryUsage

[ GitHub ] 

  


# File 'lib/test/unit/util/memory-usage.rb', line 7



def initialize
  @virtual = nil
  @physical = nil
  collect_data
end


  







Instance Attribute Details



  

    #collected?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/test/unit/util/memory-usage.rb', line 13



def collected?
  return false if @virtual.nil?
  return false if @physical.nil?
  true
end


  








  

    #physical   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/test/unit/util/memory-usage.rb', line 6



attr_reader :physical


  








  

    #virtual   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/test/unit/util/memory-usage.rb', line 5



attr_reader :virtual


  







Instance Method Details



  

    #collect_data   (private)
  

  [ GitHub ]


  

  


# File 'lib/test/unit/util/memory-usage.rb', line 20



def collect_data
  collect_data_proc
end


  








  

    #collect_data_proc   (private)
  

  [ GitHub ]


  

  


# File 'lib/test/unit/util/memory-usage.rb', line 24



def collect_data_proc
  status_file = "/proc/self/status"
  return false unless File.exist?(status_file)

  data = File.binread(status_file)
  data.each_line do |line|
    case line
    when /\AVm(Size|RSS):\s*(\d+)\s*kB/
      name = $1
      value = Integer($2, 10) * 1024
      case name
      when "Size"
        @virtual = value
      when "RSS"
        @physical = value
      end
    end
  end
  collected?
end