module PhusionPassenger::Standalone::ControlUtils

def self.included(klass)
  # When included into another class, make sure that Utils
  # methods are made private.
  public_instance_methods(false).each do |method_name|
    klass.send(:private, method_name)
  end
end

def require_daemon_controller
  return if defined?(PhusionPassenger::DaemonController)
  PhusionPassenger.require_passenger_lib 'vendor/daemon_controller'
end

def warn_pid_file_not_found(options)
  if options[:pid_file]
    STDERR.puts "According to the PID file '#{options[:pid_file]}',"
    STDERR.puts "#{PROGRAM_NAME} Standalone doesn't seem to be running."
  else
    STDERR.puts "#{PROGRAM_NAME} Standalone doesn't seem to be running, " +
      "because its PID file"
    STDERR.puts "could not be found."
  end
  STDERR.puts
  STDERR.puts "If you know that #{PROGRAM_NAME} Standalone *is* running then one of these"
  STDERR.puts "might be the cause of this error:"
  STDERR.puts
  STDERR.puts " * The #{PROGRAM_NAME} Standalone instance that you want to stop isn't running"
  STDERR.puts "   on port #{options[:port]}, but on another port. If this is the case then you"
  STDERR.puts "   should specify the right port with --port."
  STDERR.puts "   If the instance is listening on a Unix socket file instead of a TCP port,"
  STDERR.puts "   then please specify the PID file's filename with --pid-file."
  STDERR.puts " * The instance that you want to stop has stored its PID file in a non-standard"
  STDERR.puts "   location. In this case please specify the right PID file with --pid-file."
end