Method: Main::Daemon#cmd_ping

Defined in:
lib/main/daemon.rb

#cmd_ping ⇒ Object 



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# File 'lib/main/daemon.rb', line 262

def cmd_ping
  pid = Integer(IO.read(@pid_file)) rescue nil

  if pid
    signaled = false

    begin
      Process.kill('SIGALRM', pid)
      signaled = true
    rescue Object
      nil
    end

    if signaled
      STDOUT.puts(pid)
      exit
    end
  end
end