Beispiel #1
0
func Open(cfg *config.Config) (*Ledis, error) {
	if len(cfg.DataDir) == 0 {
		cfg.DataDir = config.DefaultDataDir
	}

	if cfg.Databases == 0 {
		cfg.Databases = 16
	} else if cfg.Databases > MaxDatabases {
		cfg.Databases = MaxDatabases
	}

	os.MkdirAll(cfg.DataDir, 0755)

	var err error

	l := new(Ledis)
	l.cfg = cfg

	if l.lock, err = filelock.Lock(path.Join(cfg.DataDir, "LOCK")); err != nil {
		return nil, err
	}

	l.quit = make(chan struct{})

	if l.ldb, err = store.Open(cfg); err != nil {
		return nil, err
	}

	if cfg.UseReplication {
		if l.r, err = rpl.NewReplication(cfg); err != nil {
			return nil, err
		}

		l.rc = make(chan struct{}, 1)
		l.rbatch = l.ldb.NewWriteBatch()
		l.rDoneCh = make(chan struct{}, 1)

		l.wg.Add(1)
		go l.onReplication()

		//first we must try wait all replication ok
		//maybe some logs are not committed
		l.WaitReplication()
	} else {
		l.r = nil
	}

	l.dbs = make(map[int]*DB, 16)

	l.checkTTL()

	return l, nil
}
Beispiel #2
0
func GetStore(cfg *config.Config) (Store, error) {
	if len(cfg.DBName) == 0 {
		cfg.DBName = config.DefaultDBName
	}

	s, ok := dbs[cfg.DBName]
	if !ok {
		return nil, fmt.Errorf("store %s is not registered", cfg.DBName)
	}

	return s, nil
}
Beispiel #3
0
func NewApp(cfg *config.Config) (*App, error) {
	if len(cfg.DataDir) == 0 {
		println("use default datadir %s", config.DefaultDataDir)
		cfg.DataDir = config.DefaultDataDir
	}

	app := new(App)

	app.quit = make(chan struct{})

	app.closed = false

	app.cfg = cfg

	app.slaves = make(map[string]*client)
	app.slaveSyncAck = make(chan uint64)

	app.rcs = make(map[*respClient]struct{})

	app.migrateClients = make(map[string]*goredis.Client)
	app.newMigrateKeyLockers()

	var err error

	if app.info, err = newInfo(app); err != nil {
		return nil, err
	}

	if app.listener, err = net.Listen(netType(cfg.Addr), cfg.Addr); err != nil {
		return nil, err
	}

	if len(cfg.HttpAddr) > 0 {
		if app.httpListener, err = net.Listen(netType(cfg.HttpAddr), cfg.HttpAddr); err != nil {
			return nil, err
		}
	}

	if len(cfg.AccessLog) > 0 {
		if path.Dir(cfg.AccessLog) == "." {
			app.access, err = newAcessLog(path.Join(cfg.DataDir, cfg.AccessLog))
		} else {
			app.access, err = newAcessLog(cfg.AccessLog)
		}

		if err != nil {
			return nil, err
		}
	}

	if app.snap, err = newSnapshotStore(cfg); err != nil {
		return nil, err
	}

	if len(app.cfg.SlaveOf) > 0 {
		//slave must readonly
		app.cfg.Readonly = true
	}

	if app.ldb, err = ledis.Open(cfg); err != nil {
		return nil, err
	}

	app.m = newMaster(app)

	app.openScript()

	app.ldb.AddNewLogEventHandler(app.publishNewLog)

	return app, nil
}