Class: Skiplock::Manager

Inherits:
Object
  • Object
show all
Defined in:
lib/skiplock/manager.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Manager

Returns a new instance of Manager.



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# File 'lib/skiplock/manager.rb', line 3

def initialize
  @config = Skiplock::DEFAULT_CONFIG.dup
  @config.merge!(YAML.load_file('config/skiplock.yml')) rescue nil
  @config.symbolize_keys!
  async if (caller.any?{ |l| l =~ %r{/rack/} } && @config[:workers] == 0)
end

Instance Method Details

#async ⇒ Object 



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# File 'lib/skiplock/manager.rb', line 10

def async
  setup_logger
  configure
  Worker.cleanup(@hostname)
  @worker = Worker.generate(capacity: @config[:max_threads], hostname: @hostname)
  Cron.setup if @worker.master
  @worker.start(**@config)
  at_exit { @worker.shutdown }
rescue Exception => ex
  @logger.error(ex.to_s)
  @logger.error(ex.backtrace.join("\n"))
end

#standalone(**options) ⇒ Object 



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# File 'lib/skiplock/manager.rb', line 23

def standalone(**options)
  @config.merge!(options)
  @config[:standalone] = true
  @config[:workers] = 1 if @config[:workers] <= 0
  setup_logger
  configure
  banner
  @parent_id = Process.pid
  @shutdown = false
  Signal.trap('INT') { @shutdown = true }
  Signal.trap('TERM') { @shutdown = true }
  Signal.trap('HUP') { setup_logger }
  Worker.cleanup(@hostname)
  @worker = Worker.generate(capacity: @config[:max_threads], hostname: @hostname)
  ActiveRecord::Base.connection.disconnect! if @config[:workers] > 1
  (@config[:workers] - 1).times do |n|
    fork do
      sleep(0.25*n + 1)
      ActiveRecord::Base.establish_connection
      worker = Worker.generate(capacity: @config[:max_threads], hostname: @hostname, master: false)
      worker.start(worker_num: n + 1, **@config)
      loop do
        sleep 0.5
        break if @shutdown || Process.ppid != @parent_id
      end
      worker.shutdown
    end
  end
  ActiveRecord::Base.establish_connection if @config[:workers] > 1
  @worker.start(**@config)
  loop do
    sleep 0.5
    break if @shutdown
  end
  @logger.info "[Skiplock] Terminating signal... Waiting for jobs to finish (up to #{@config[:graceful_shutdown]} seconds)..." if @config[:graceful_shutdown]
  Process.waitall
  @worker.shutdown
rescue Exception => ex
  @logger.error(ex.to_s)
  @logger.error(ex.backtrace.join("\n"))
end