Class: Clicker::Program

Inherits:
Object
  • Object
show all
Defined in:
lib/clicker/program.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Program

Returns a new instance of Program.



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# File 'lib/clicker/program.rb', line 7

def initialize
  @mode = :normal
  OptionParser.new do |opt|
    opt.on('--start', 'start as a daemon') { @mode = :start}
    opt.on('--stop', 'stop the daemon') { @mode = :stop }
    opt.on('-v', '--version', 'print version information and exit') { print_version; exit 0 }
    opt.parse!(ARGV)
  end

  @lock = LaunchLock.new('clicker')
end

Instance Method Details

#do_run ⇒ Object 



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# File 'lib/clicker/program.rb', line 64

def do_run
  model = KeyboardSoundModel.new
  begin
    io = IO.popen("evtest /dev/input/by-path/platform-i8042-serio-0-event-kbd", 'r')
  rescue Errno::ENOENT
    raise 'evtest command not found.'
  end

  loop do
    IO.select([io], [], [])

    line = io.gets
    if line == nil
      break
    elsif line =~ /^Event: time \d+\.\d+, type 1 \(EV_KEY\), code (\d+) \(KEY_.*?\), value (\d+)$/
      code, value = $1.to_i, $2.to_i

      case value
      when 0
        model.deactivate_key(code)
      when 1
        model.activate_key(code)
      when 2
        model.repeat_key(code)
      end
    end
    model.update
  end
rescue RuntimeError => e
  STDERR.puts "Error: #{e.to_s}"
  exit 1
rescue Interrupt
end

#print_version ⇒ Object 



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# File 'lib/clicker/program.rb', line 19

def print_version
  STDERR.puts "clicker #{Clicker::VERSION}"
  STDERR.puts "Copyright © 2016 Yoteichi"
end

#run ⇒ Object 



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# File 'lib/clicker/program.rb', line 24

def run
  case @mode
  when :normal
    success = @lock.try_lock do
      do_run
    end

    unless success
      STDERR.puts("Error: another instance of clicker is running. (PID #{@lock.owner})")
      exit 1
    end
  when :start
    if @lock.locked?
      STDERR.puts("Error: another instance of clicker is running. (PID #{@lock.owner})")
      exit 1
    else
      if fork == nil
        if fork == nil
          @lock.try_lock do
            do_run
          end
          # ここでは端末から切り離されているのでロックに失敗しても出来ることはない。
        end
      end
    end
  when :stop
    if @lock.locked?
      owner = @lock.owner
      begin
        Process.kill("TERM", owner)
        STDERR.puts("SIGTERM has been sent to PID #{owner}.")
      rescue Errno::ESRCH
        STDERR.puts("Warning: Process (#{owner}) not found.")
      end
    else
      STDERR.puts("no instance is running.")
    end
  end
end