Class: RaadTotem::Runner

Inherits:
Object
  • Object
show all
Includes:
Daemonizable
Defined in:
lib/raad_totem/runner.rb

Constant Summary collapse

SECOND = 
1
STOP_TIMEOUT = 
60 * SECOND

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Daemonizable

#daemonize, #force_kill_and_remove_pid_file, #pid, #post_fork_setup, #read_pid_file, #remove_pid_file, #remove_stale_pid_file, #send_signal, #write_pid_file

Constructor Details

#initialize(argv, service_class) ⇒ Runner

Create a new Runner

Parameters:

  • argv (Array) —

    command line arguments

  • service_class (Class) —

    service class



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# File 'lib/raad_totem/runner.rb', line 19

def initialize(argv, service_class)
  @argv = argv.dup # lets keep a copy for jruby double-launch
  @service_class = service_class
  @parsed_options = nil

  @stop_lock = Mutex.new
  @stop_signaled = false

  # parse command line options and set @parsed_options
  options_parser = service_class.respond_to?(:options_parser) ? service_class.options_parser(create_options_parser, RaadTotem.custom_options) : create_options_parser
  begin
    options_parser.parse!(argv)
  rescue OptionParser::InvalidOption => e
    puts(">> #{e.message}")
    exit!(false)
  end

  # grab what's left after options, which should be the start/stop command
  @parsed_options[:command] = argv[0].to_s.downcase
  unless ['start', 'stop', 'post_fork'].include?(@parsed_options[:command])
    puts(">> start|stop command is required")
    exit!(false)
  end

  Totem.component = default_service_name(service_class)

  # @pid_file is required to become Daemonizable
  @pid_file = @parsed_options.delete(:pid_file) || default_pid_path
  FileUtils.mkdir_p(File.dirname(@pid_file))

  # default stop timeout
  @stop_timeout = (@parsed_options.delete(:stop_timeout) || STOP_TIMEOUT).to_i
end

Instance Attribute Details

#pid_file ⇒ Object

Returns the value of attribute pid_file.



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# File 'lib/raad_totem/runner.rb', line 13

def pid_file
  @pid_file
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/raad_totem/runner.rb', line 53

def run
  # check for stop command, @pid_file must be set
  if @parsed_options[:command] == 'stop'
    puts(">> RaadTotem service wrapper v#{VERSION} stopping")
    # first send the TERM signal which will invoke the daemon wait_or_will method which will timeout after @stop_timeout
    # if still not stopped afer @stop_timeout + 2 seconds, KILL -9 will be sent.
    success = send_signal('TERM', @stop_timeout + (2 * SECOND))
    exit(success)
  end

  Dir.chdir(File.expand_path(File.dirname("./")))

  if @parsed_options[:command] == 'post_fork'
    # we've been spawned and re executed, finish setup
    post_fork_setup(Totem.component, (@parsed_options[:redirect] || default_redirect_path))
    start_service
  else
    puts(">> RaadTotem service wrapper v#{VERSION} starting")
    @parsed_options[:daemonize] ? daemonize(@argv, Totem.component, @parsed_options[:redirect]) {start_service} : start_service
  end
end