Contents

module Bluepill
  module ProcessConditions
    class MemUsage < ProcessCondition
      MB = 1024**2
      FORMAT_STR = '%d%s'
      MB_LABEL = 'MB'
      KB_LABEL = 'KB'

      def initialize(options = {})
        @below = options[:below]
      end

      def run(pid, include_children)
        # rss is on the 5th col
        System.memory_usage(pid, include_children).to_f
      end

      def check(value)
        value.kilobytes < @below rescue true
      end

      def format_value(value)
        if value.kilobytes >= MB
          format(FORMAT_STR, (value / 1024).round, MB_LABEL)
        else
          format(FORMAT_STR, value, KB_LABEL)
        end
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
bluepill-0.0.69	lib/bluepill/process_conditions/mem_usage.rb