func cacheData(ratingDb engine.RatingStorage, accountDb engine.AccountingStorage, doneChan chan struct{}) {
	if err := ratingDb.CacheRating(nil, nil, nil, nil, nil); err != nil {
		engine.Logger.Crit(fmt.Sprintf("Cache rating error: %s", err.Error()))
		exitChan <- true
		return
	}
	if err := accountDb.CacheAccounting(nil, nil, nil, nil); err != nil {
		engine.Logger.Crit(fmt.Sprintf("Cache accounting error: %s", err.Error()))
		exitChan <- true
		return
	}
	close(doneChan)
}

func (s *Scheduler) LoadActionPlans(storage engine.RatingStorage) {
	actionPlans, err := storage.GetAllActionPlans()
	if err != nil {
		utils.Logger.Warning(fmt.Sprintf("Cannot get action plans: %v", err))
	}
	// recreate the queue
	s.Lock()
	s.queue = engine.ActionPlanPriotityList{}
	for key, aps := range actionPlans {
		toBeSaved := false
		isAsap := false
		newApls := make([]*engine.ActionPlan, 0) // will remove the one time runs from the database
		for _, ap := range aps {
			if ap.Timing == nil {
				utils.Logger.Warning(fmt.Sprintf("<Scheduler> Nil timing on action plan: %+v, discarding!", ap))
				continue
			}
			isAsap = ap.IsASAP()
			toBeSaved = toBeSaved || isAsap
			if isAsap {
				if len(ap.AccountIds) > 0 {
					utils.Logger.Info(fmt.Sprintf("Time for one time action on %v", key))
				}
				ap.Execute()
				ap.AccountIds = make([]string, 0)
			} else {
				now := time.Now()
				if ap.GetNextStartTime(now).Before(now) {
					// the task is obsolete, do not add it to the queue
					continue
				}
				s.queue = append(s.queue, ap)
			}
			// save even asap action plans with empty account id list
			newApls = append(newApls, ap)
		}
		if toBeSaved {
			engine.Guardian.Guard(func() (interface{}, error) {
				storage.SetActionPlans(key, newApls)
				return 0, nil
			}, 0, utils.ACTION_PLAN_PREFIX)
		}
	}
	sort.Sort(s.queue)
	s.Unlock()
}

// Starts rater and reports on chan
func startRater(internalRaterChan chan rpcclient.RpcClientConnection, cacheDoneChan chan struct{}, internalBalancerChan chan *balancer2go.Balancer, internalSchedulerChan chan *scheduler.Scheduler,
	internalCdrStatSChan chan rpcclient.RpcClientConnection, internalHistorySChan chan rpcclient.RpcClientConnection,
	internalPubSubSChan chan rpcclient.RpcClientConnection, internalUserSChan chan rpcclient.RpcClientConnection, internalAliaseSChan chan rpcclient.RpcClientConnection,
	server *utils.Server,
	ratingDb engine.RatingStorage, accountDb engine.AccountingStorage, loadDb engine.LoadStorage, cdrDb engine.CdrStorage, logDb engine.LogStorage,
	stopHandled *bool, exitChan chan bool) {
	var waitTasks []chan struct{}

	//Cache load
	cacheTaskChan := make(chan struct{})
	waitTasks = append(waitTasks, cacheTaskChan)
	go func() {
		defer close(cacheTaskChan)

		loadHist, err := accountDb.GetLoadHistory(1, true)
		if err != nil || len(loadHist) == 0 {
			utils.Logger.Info(fmt.Sprintf("could not get load history: %v (%v)", loadHist, err))
			cacheDoneChan <- struct{}{}
			return
		}
		cfi, err := utils.LoadCacheFileInfo(cfg.CacheDumpDir)
		if err != nil || cfi.LoadInfo.RatingLoadID != loadHist[0].RatingLoadID {
			if err := ratingDb.CacheRatingAll("StartRater"); err != nil {
				utils.Logger.Crit(fmt.Sprintf("Cache rating error: %s", err.Error()))
				exitChan <- true
				return
			}
		} else {
			if err := engine.CacheLoad(cfg.CacheDumpDir, []string{utils.DESTINATION_PREFIX, utils.RATING_PLAN_PREFIX, utils.RATING_PROFILE_PREFIX, utils.LCR_PREFIX, utils.DERIVEDCHARGERS_PREFIX, utils.ACTION_PREFIX, utils.ACTION_PLAN_PREFIX, utils.SHARED_GROUP_PREFIX}); err != nil {
				utils.Logger.Crit("could not load cache file: " + err.Error())
				exitChan <- true
				return
			}
		}
		cacheDoneChan <- struct{}{}
	}()

	// Retrieve scheduler for it's API methods
	var sched *scheduler.Scheduler // Need the scheduler in APIer
	if cfg.SchedulerEnabled {
		schedTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, schedTaskChan)
		go func() {
			defer close(schedTaskChan)
			select {
			case sched = <-internalSchedulerChan:
				internalSchedulerChan <- sched
			case <-time.After(cfg.InternalTtl):
				utils.Logger.Crit("<Rater>: Internal scheduler connection timeout.")
				exitChan <- true
				return
			}

		}()
	}
	var bal *balancer2go.Balancer
	if cfg.RALsBalancer != "" { // Connection to balancer
		balTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, balTaskChan)
		go func() {
			defer close(balTaskChan)
			if cfg.RALsBalancer == utils.MetaInternal {
				select {
				case bal = <-internalBalancerChan:
					internalBalancerChan <- bal // Put it back if someone else is interested about
				case <-time.After(cfg.InternalTtl):
					utils.Logger.Crit("<Rater>: Internal balancer connection timeout.")
					exitChan <- true
					return
				}
			} else {
				go registerToBalancer(exitChan)
				go stopRaterSignalHandler(internalCdrStatSChan, exitChan)
				*stopHandled = true
			}
		}()
	}
	var cdrStats *rpcclient.RpcClientPool
	if len(cfg.RALsCDRStatSConns) != 0 { // Connections to CDRStats
		cdrstatTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, cdrstatTaskChan)
		go func() {
			defer close(cdrstatTaskChan)
			cdrStats, err = engine.NewRPCPool(rpcclient.POOL_FIRST, cfg.ConnectAttempts, cfg.Reconnects, cfg.ConnectTimeout, cfg.ReplyTimeout,
				cfg.RALsCDRStatSConns, internalCdrStatSChan, cfg.InternalTtl)
			if err != nil {
				utils.Logger.Crit(fmt.Sprintf("<RALs> Could not connect to CDRStatS, error: %s", err.Error()))
				exitChan <- true
				return
			}
		}()
	}
	if len(cfg.RALsHistorySConns) != 0 { // Connection to HistoryS,
		histTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, histTaskChan)
		go func() {
			defer close(histTaskChan)
			if historySConns, err := engine.NewRPCPool(rpcclient.POOL_FIRST, cfg.ConnectAttempts, cfg.Reconnects, cfg.ConnectTimeout, cfg.ReplyTimeout,
				cfg.RALsHistorySConns, internalHistorySChan, cfg.InternalTtl); err != nil {
//.........这里部分代码省略.........

func main() {
	flag.Parse()
	if *version {
		fmt.Println("CGRateS " + utils.VERSION)
		return
	}
	if *pidFile != "" {
		writePid()
	}
	if *singlecpu {
		runtime.GOMAXPROCS(1) // Having multiple cpus slows down computing due to CPU management, to be reviewed in future Go releases
	}
	if *cpuprofile != "" {
		f, err := os.Create(*cpuprofile)
		if err != nil {
			log.Fatal(err)
		}
		pprof.StartCPUProfile(f)
		defer pprof.StopCPUProfile()
	}
	cfg, err = config.NewCGRConfigFromFolder(*cfgDir)
	if err != nil {
		utils.Logger.Crit(fmt.Sprintf("Could not parse config: %s exiting!", err))
		return
	}
	config.SetCgrConfig(cfg) // Share the config object
	if *raterEnabled {
		cfg.RaterEnabled = *raterEnabled
	}
	if *schedEnabled {
		cfg.SchedulerEnabled = *schedEnabled
	}
	if *cdrsEnabled {
		cfg.CDRSEnabled = *cdrsEnabled
	}
	var ratingDb engine.RatingStorage
	var accountDb engine.AccountingStorage
	var logDb engine.LogStorage
	var loadDb engine.LoadStorage
	var cdrDb engine.CdrStorage
	if cfg.RaterEnabled || cfg.SchedulerEnabled { // Only connect to dataDb if necessary
		ratingDb, err = engine.ConfigureRatingStorage(cfg.TpDbType, cfg.TpDbHost, cfg.TpDbPort,
			cfg.TpDbName, cfg.TpDbUser, cfg.TpDbPass, cfg.DBDataEncoding)
		if err != nil { // Cannot configure getter database, show stopper
			utils.Logger.Crit(fmt.Sprintf("Could not configure dataDb: %s exiting!", err))
			return
		}
		defer ratingDb.Close()
		engine.SetRatingStorage(ratingDb)
		accountDb, err = engine.ConfigureAccountingStorage(cfg.DataDbType, cfg.DataDbHost, cfg.DataDbPort,
			cfg.DataDbName, cfg.DataDbUser, cfg.DataDbPass, cfg.DBDataEncoding)
		if err != nil { // Cannot configure getter database, show stopper
			utils.Logger.Crit(fmt.Sprintf("Could not configure dataDb: %s exiting!", err))
			return
		}
		defer accountDb.Close()
		engine.SetAccountingStorage(accountDb)
	}
	if cfg.RaterEnabled || cfg.CDRSEnabled || cfg.SchedulerEnabled { // Only connect to storDb if necessary
		logDb, err = engine.ConfigureLogStorage(cfg.StorDBType, cfg.StorDBHost, cfg.StorDBPort,
			cfg.StorDBName, cfg.StorDBUser, cfg.StorDBPass, cfg.DBDataEncoding, cfg.StorDBMaxOpenConns, cfg.StorDBMaxIdleConns)
		if err != nil { // Cannot configure logger database, show stopper
			utils.Logger.Crit(fmt.Sprintf("Could not configure logger database: %s exiting!", err))
			return
		}
		defer logDb.Close()
		engine.SetStorageLogger(logDb)
		// loadDb,cdrDb and logDb are all mapped on the same stordb storage
		loadDb = logDb.(engine.LoadStorage)
		cdrDb = logDb.(engine.CdrStorage)
		engine.SetCdrStorage(cdrDb)
	}

	engine.SetRoundingDecimals(cfg.RoundingDecimals)
	stopHandled := false

	// Rpc/http server
	server := new(engine.Server)

	// Async starts here, will follow cgrates.json start order
	exitChan := make(chan bool)

	// Define internal connections via channels
	internalBalancerChan := make(chan *balancer2go.Balancer, 1)
	internalRaterChan := make(chan *engine.Responder, 1)
	internalSchedulerChan := make(chan *scheduler.Scheduler, 1)
	internalCdrSChan := make(chan *engine.CdrServer, 1)
	internalCdrStatSChan := make(chan engine.StatsInterface, 1)
	internalHistorySChan := make(chan history.Scribe, 1)
	internalPubSubSChan := make(chan engine.PublisherSubscriber, 1)
	internalUserSChan := make(chan engine.UserService, 1)
	internalAliaseSChan := make(chan engine.AliasService, 1)

	// Start balancer service
	if cfg.BalancerEnabled {
		go startBalancer(internalBalancerChan, &stopHandled, exitChan) // Not really needed async here but to cope with uniformity
	}

	// Start rater service
	if cfg.RaterEnabled {
//.........这里部分代码省略.........

// Starts rater and reports on chan
func startRater(internalRaterChan chan *engine.Responder, internalBalancerChan chan *balancer2go.Balancer, internalSchedulerChan chan *scheduler.Scheduler,
	internalCdrStatSChan chan engine.StatsInterface, internalHistorySChan chan history.Scribe,
	internalPubSubSChan chan engine.PublisherSubscriber, internalUserSChan chan engine.UserService, internalAliaseSChan chan engine.AliasService,
	server *utils.Server,
	ratingDb engine.RatingStorage, accountDb engine.AccountingStorage, loadDb engine.LoadStorage, cdrDb engine.CdrStorage, logDb engine.LogStorage,
	stopHandled *bool, exitChan chan bool) {
	waitTasks := make([]chan struct{}, 0)

	//Cache load
	cacheTaskChan := make(chan struct{})
	waitTasks = append(waitTasks, cacheTaskChan)
	go func() {
		defer close(cacheTaskChan)
		if err := ratingDb.CacheRatingAll(); err != nil {
			utils.Logger.Crit(fmt.Sprintf("Cache rating error: %s", err.Error()))
			exitChan <- true
			return
		}
		if err := accountDb.CacheAccountingPrefixes(); err != nil { // Used to cache load history
			utils.Logger.Crit(fmt.Sprintf("Cache accounting error: %s", err.Error()))
			exitChan <- true
			return
		}

	}()

	// Retrieve scheduler for it's API methods
	var sched *scheduler.Scheduler // Need the scheduler in APIer
	if cfg.SchedulerEnabled {
		schedTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, schedTaskChan)
		go func() {
			defer close(schedTaskChan)
			select {
			case sched = <-internalSchedulerChan:
				internalSchedulerChan <- sched
			case <-time.After(cfg.InternalTtl):
				utils.Logger.Crit("<Rater>: Internal scheduler connection timeout.")
				exitChan <- true
				return
			}

		}()
	}

	// Connection to balancer
	var bal *balancer2go.Balancer
	if cfg.RaterBalancer != "" {
		balTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, balTaskChan)
		go func() {
			defer close(balTaskChan)
			if cfg.RaterBalancer == utils.INTERNAL {
				select {
				case bal = <-internalBalancerChan:
					internalBalancerChan <- bal // Put it back if someone else is interested about
				case <-time.After(cfg.InternalTtl):
					utils.Logger.Crit("<Rater>: Internal balancer connection timeout.")
					exitChan <- true
					return
				}
			} else {
				go registerToBalancer(exitChan)
				go stopRaterSignalHandler(internalCdrStatSChan, exitChan)
				*stopHandled = true
			}
		}()
	}

	// Connection to CDRStats
	var cdrStats engine.StatsInterface
	if cfg.RaterCdrStats != "" {
		cdrstatTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, cdrstatTaskChan)
		go func() {
			defer close(cdrstatTaskChan)
			if cfg.RaterCdrStats == utils.INTERNAL {
				select {
				case cdrStats = <-internalCdrStatSChan:
					internalCdrStatSChan <- cdrStats
				case <-time.After(cfg.InternalTtl):
					utils.Logger.Crit("<Rater>: Internal cdrstats connection timeout.")
					exitChan <- true
					return
				}
			} else if cdrStats, err = engine.NewProxyStats(cfg.RaterCdrStats, cfg.ConnectAttempts, -1); err != nil {
				utils.Logger.Crit(fmt.Sprintf("<Rater> Could not connect to cdrstats, error: %s", err.Error()))
				exitChan <- true
				return
			}
		}()
	}

	// Connection to HistoryS
	if cfg.RaterHistoryServer != "" {
		histTaskChan := make(chan struct{})
		waitTasks = append(waitTasks, histTaskChan)
		go func() {
			defer close(histTaskChan)
//.........这里部分代码省略.........

func main() {
	flag.Parse()
	if *version {
		fmt.Println("CGRateS " + utils.VERSION)
		return
	}
	if *pidFile != "" {
		writePid()
	}
	if *singlecpu {
		runtime.GOMAXPROCS(1) // Having multiple cpus may slow down computing due to CPU management, to be reviewed in future Go releases
	}
	exitChan := make(chan bool)
	if *cpuprofile != "" {
		f, err := os.Create(*cpuprofile)
		if err != nil {
			log.Fatal(err)
		}
		pprof.StartCPUProfile(f)
		defer pprof.StopCPUProfile()

	}
	if *scheduledShutdown != "" {
		shutdownDur, err := utils.ParseDurationWithSecs(*scheduledShutdown)
		if err != nil {
			log.Fatal(err)
		}
		go func() { // Schedule shutdown
			time.Sleep(shutdownDur)
			exitChan <- true
		}()
	}

	cfg, err = config.NewCGRConfigFromFolder(*cfgDir)
	if err != nil {
		log.Fatalf("Could not parse config: ", err)
		return
	}
	lgLevel := cfg.LogLevel
	if *logLevel != -1 { // Modify the log level if provided by command arguments
		lgLevel = *logLevel
	}
	utils.Logger.SetLogLevel(lgLevel)
	config.SetCgrConfig(cfg) // Share the config object
	cache.NewCache(cfg.CacheConfig)

	var ratingDb engine.RatingStorage
	var accountDb engine.AccountingStorage
	var loadDb engine.LoadStorage
	var cdrDb engine.CdrStorage
	if cfg.RALsEnabled || cfg.SchedulerEnabled || cfg.CDRStatsEnabled { // Only connect to dataDb if necessary
		ratingDb, err = engine.ConfigureRatingStorage(cfg.TpDbType, cfg.TpDbHost, cfg.TpDbPort,
			cfg.TpDbName, cfg.TpDbUser, cfg.TpDbPass, cfg.DBDataEncoding, cfg.CacheConfig, cfg.LoadHistorySize)
		if err != nil { // Cannot configure getter database, show stopper
			utils.Logger.Crit(fmt.Sprintf("Could not configure dataDb: %s exiting!", err))
			return
		}
		defer ratingDb.Close()
		engine.SetRatingStorage(ratingDb)
	}
	if cfg.RALsEnabled || cfg.CDRStatsEnabled || cfg.PubSubServerEnabled || cfg.AliasesServerEnabled || cfg.UserServerEnabled {
		accountDb, err = engine.ConfigureAccountingStorage(cfg.DataDbType, cfg.DataDbHost, cfg.DataDbPort,
			cfg.DataDbName, cfg.DataDbUser, cfg.DataDbPass, cfg.DBDataEncoding, cfg.CacheConfig, cfg.LoadHistorySize)
		if err != nil { // Cannot configure getter database, show stopper
			utils.Logger.Crit(fmt.Sprintf("Could not configure dataDb: %s exiting!", err))
			return
		}
		defer accountDb.Close()
		engine.SetAccountingStorage(accountDb)
		if err := engine.CheckVersion(nil); err != nil {
			fmt.Println(err.Error())
			return
		}
	}
	if cfg.RALsEnabled || cfg.CDRSEnabled || cfg.SchedulerEnabled { // Only connect to storDb if necessary
		storDb, err := engine.ConfigureStorStorage(cfg.StorDBType, cfg.StorDBHost, cfg.StorDBPort,
			cfg.StorDBName, cfg.StorDBUser, cfg.StorDBPass, cfg.DBDataEncoding, cfg.StorDBMaxOpenConns, cfg.StorDBMaxIdleConns, cfg.StorDBCDRSIndexes)
		if err != nil { // Cannot configure logger database, show stopper
			utils.Logger.Crit(fmt.Sprintf("Could not configure logger database: %s exiting!", err))
			return
		}
		defer storDb.Close()
		// loadDb,cdrDb and storDb are all mapped on the same stordb storage
		loadDb = storDb.(engine.LoadStorage)
		cdrDb = storDb.(engine.CdrStorage)
		engine.SetCdrStorage(cdrDb)
	}

	engine.SetRoundingDecimals(cfg.RoundingDecimals)
	engine.SetRpSubjectPrefixMatching(cfg.RpSubjectPrefixMatching)
	engine.SetLcrSubjectPrefixMatching(cfg.LcrSubjectPrefixMatching)
	stopHandled := false

	// Rpc/http server
	server := new(utils.Server)

	// Async starts here, will follow cgrates.json start order

	// Define internal connections via channels
	internalBalancerChan := make(chan *balancer2go.Balancer, 1)
//.........这里部分代码省略.........

func main() {
	flag.Parse()
	if *version {
		fmt.Println("CGRateS " + utils.VERSION)
		return
	}
	if *pidFile != "" {
		writePid()
	}
	// runtime.GOMAXPROCS(runtime.NumCPU())   // For now it slows down computing due to CPU management, to be reviewed in future Go releases

	cfg, err = config.NewCGRConfigFromFile(cfgPath)
	if err != nil {
		engine.Logger.Crit(fmt.Sprintf("Could not parse config: %s exiting!", err))
		return
	}
	config.SetCgrConfig(cfg) // Share the config object
	if *raterEnabled {
		cfg.RaterEnabled = *raterEnabled
	}
	if *schedEnabled {
		cfg.SchedulerEnabled = *schedEnabled
	}
	if *cdrsEnabled {
		cfg.CDRSEnabled = *cdrsEnabled
	}
	if *cdrcEnabled {
		cfg.CdrcEnabled = *cdrcEnabled
	}
	if *mediatorEnabled {
		cfg.MediatorEnabled = *mediatorEnabled
	}

	// some consitency checks
	errCfg := checkConfigSanity()
	if errCfg != nil {
		engine.Logger.Crit(errCfg.Error())
		return
	}
	var ratingDb engine.RatingStorage
	var accountDb engine.AccountingStorage
	var logDb engine.LogStorage
	var loadDb engine.LoadStorage
	var cdrDb engine.CdrStorage
	ratingDb, err = engine.ConfigureRatingStorage(cfg.RatingDBType, cfg.RatingDBHost, cfg.RatingDBPort,
		cfg.RatingDBName, cfg.RatingDBUser, cfg.RatingDBPass, cfg.DBDataEncoding)
	if err != nil { // Cannot configure getter database, show stopper
		engine.Logger.Crit(fmt.Sprintf("Could not configure dataDb: %s exiting!", err))
		return
	}
	defer ratingDb.Close()
	engine.SetRatingStorage(ratingDb)
	accountDb, err = engine.ConfigureAccountingStorage(cfg.AccountDBType, cfg.AccountDBHost, cfg.AccountDBPort,
		cfg.AccountDBName, cfg.AccountDBUser, cfg.AccountDBPass, cfg.DBDataEncoding)
	if err != nil { // Cannot configure getter database, show stopper
		engine.Logger.Crit(fmt.Sprintf("Could not configure dataDb: %s exiting!", err))
		return
	}
	defer accountDb.Close()
	engine.SetAccountingStorage(accountDb)

	if cfg.StorDBType == SAME {
		logDb = ratingDb.(engine.LogStorage)
	} else {
		logDb, err = engine.ConfigureLogStorage(cfg.StorDBType, cfg.StorDBHost, cfg.StorDBPort,
			cfg.StorDBName, cfg.StorDBUser, cfg.StorDBPass, cfg.DBDataEncoding)
		if err != nil { // Cannot configure logger database, show stopper
			engine.Logger.Crit(fmt.Sprintf("Could not configure logger database: %s exiting!", err))
			return
		}
	}
	defer logDb.Close()
	engine.SetStorageLogger(logDb)
	// loadDb,cdrDb and logDb are all mapped on the same stordb storage
	loadDb = logDb.(engine.LoadStorage)
	cdrDb = logDb.(engine.CdrStorage)

	engine.SetRoundingDecimals(cfg.RoundingDecimals)
	if cfg.SMDebitInterval > 0 {
		if dp, err := time.ParseDuration(fmt.Sprintf("%vs", cfg.SMDebitInterval)); err == nil {
			engine.SetDebitPeriod(dp)
		}
	}

	stopHandled := false

	// Async starts here

	rpcWait := make([]chan struct{}, 0)  // Rpc server will start as soon as this list is consumed
	httpWait := make([]chan struct{}, 0) // Http server will start as soon as this list is consumed

	var cacheChan chan struct{}
	if cfg.RaterEnabled { // Cache rating if rater enabled
		cacheChan = make(chan struct{})
		rpcWait = append(rpcWait, cacheChan)
		go cacheData(ratingDb, accountDb, cacheChan)
	}

	if cfg.RaterEnabled && cfg.RaterBalancer != "" && !cfg.BalancerEnabled {
		go registerToBalancer()
//.........这里部分代码省略.........