Class: Knj::Power_manager

Inherits:
Object show all
Defined in:
lib/knj/power_manager.rb

Instance Method Summary collapse

Constructor Details

#initialize(args = {}) ⇒ Power_manager

Returns a new instance of Power_manager.



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# File 'lib/knj/power_manager.rb', line 2

def initialize(args = {})
  @args = args

  if !File.exist?("/proc/acpi/ac_adapter")
    raise "Could not find the proc-acpi folder."
  end

  Dir.new("/proc/acpi/ac_adapter").each do |file|
    next if file == "." or file == ".."
    fn = "/proc/acpi/ac_adapter/#{file}"

    if File.directory?(fn)
      @ac_folder = Php4r.realpath(fn)
      break
    end
  end

  raise "Could not register ac-folder." if !@ac_folder
end

Instance Method Details

#state ⇒ Object 



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# File 'lib/knj/power_manager.rb', line 22

def state
  cont = File.read("#{@ac_folder}/state")

  if match = cont.match(/state:\s*(.+)\s*/)
    return match[1]
  end

  raise "Could not figure out state."
end