Method release

db.go:262–319

release set all obj in the db instance to nil

()

// release set all obj in the db instance to nil
func (db *DB) release() error {
	GCEnable := db.opt.GCWhenClose

	if db.ActiveFile != nil && db.ActiveFile.rwManager != nil {
		err := db.ActiveFile.rwManager.Release()
		if err != nil {
			return err
		}
	}

	db.ActiveFile = nil

	if db.fm != nil {
		err := db.fm.Close()
		if err != nil {
			return err
		}
	}

	// Close TTL service first to stop the scanner goroutine
	if db.ttlService != nil {
		if err := db.ttlService.Stop(5 * time.Second); err != nil {
			utils.GetLogger().Printf("TTLService stop error: %v", err)
		}
	}

	// Now safe to release Index as all background services are stopped
	db.Index = nil

	if db.flock != nil && db.flock.Locked() {
		err := db.flock.Unlock()
		if err != nil {
			return err
		}
	}

	db.fm = nil

	db.commitBuffer = nil

	if db.bucketMgr != nil {
		if err := db.bucketMgr.Close(); err != nil {
			return err
		}
	}

	if db.watchMgr != nil {
		if err := db.watchMgr.close(); err != nil {
			utils.GetLogger().Printf("watch manager closed already")
		}
	}

	if GCEnable {
		runtime.GC()
	}

	return nil
}