Module: Kuroko2::Workflow::Scheduler

Defined in:

lib/kuroko2/workflow/scheduler.rb

Instance Method Summary

• #initialize ⇒ Object
• #run ⇒ Object
• #stop ⇒ Object

Instance Method Details

#initialize ⇒ Object

# File 'lib/kuroko2/workflow/scheduler.rb', line 4

def initialize
  @hostname = Socket.gethostname

  @stop       = ServerEngine::BlockingFlag.new
  @processing = ServerEngine::BlockingFlag.new
end

#run ⇒ Object

# File 'lib/kuroko2/workflow/scheduler.rb', line 11

def run
  Kuroko2.logger = logger
  Kuroko2.logger.info "[#{@hostname}-#{worker_id}] Start Workflow::Scheduler"

  until @stop.wait(2.0)
    unless @processing.set?
      begin
        @processing.set!
        JobSchedule.transaction do
          now = Time.now
          last_scheduled_time = Tick.fetch_then_update(now)
          JobSchedule.launch_scheduled_jobs!(last_scheduled_time, now)
        end
        @processing.reset!
      end
    end
  end
rescue Exception => e
  Kuroko2.logger.fatal("[#{@hostname}-#{worker_id}] #{e.class}: #{e.message}\n" +
    e.backtrace.map { |trace| "    #{trace}" }.join("\n"))

  raise e
end

#stop ⇒ Object

# File 'lib/kuroko2/workflow/scheduler.rb', line 35

def stop
  Kuroko2.logger.info "[#{@hostname}-#{worker_id}] Stop Workflow::Scheduler"

  @stop.set!
end