Пример #1
0
func (s *GoLevelDBStore) open() error {
	var err error

	s.first = InvalidLogID
	s.last = InvalidLogID

	s.db, err = store.Open(s.cfg)
	return err
}
Пример #2
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
}