class Puma::Launcher

def setup_signals
  begin
    Signal.trap "SIGUSR2" do
      restart
    end
  rescue Exception
    log "*** SIGUSR2 not implemented, signal based restart unavailable!"
  end
  unless Puma.jruby?
    begin
      Signal.trap "SIGUSR1" do
        phased_restart
      end
    rescue Exception
      log "*** SIGUSR1 not implemented, signal based restart unavailable!"
    end
  end
  begin
    Signal.trap "SIGTERM" do
      # Shortcut the control flow in case raise_exception_on_sigterm is true
      do_graceful_stop
      raise(SignalException, "SIGTERM") if @options[:raise_exception_on_sigterm]
    end
  rescue Exception
    log "*** SIGTERM not implemented, signal based gracefully stopping unavailable!"
  end
  begin
    Signal.trap "SIGINT" do
      stop
    end
  rescue Exception
    log "*** SIGINT not implemented, signal based gracefully stopping unavailable!"
  end
  begin
    Signal.trap "SIGHUP" do
      if @runner.redirected_io?
        @runner.redirect_io
      else
        stop
      end
    end
  rescue Exception
    log "*** SIGHUP not implemented, signal based logs reopening unavailable!"
  end
  begin
    unless Puma.jruby? # INFO in use by JVM already
      Signal.trap "SIGINFO" do
        thread_status do |name, backtrace|
          @log_writer.log(name)
          @log_writer.log(backtrace.map { |bt| "  #{bt}" })
        end
      end
    end
  rescue Exception
    # Not going to log this one, as SIGINFO is *BSD only and would be pretty annoying
    # to see this constantly on Linux.
  end
end