swarm/storage: Remove comment

swarm/storage/ldbstore.go

@@ -101,7 +101,7 @@ type garbage struct {
 	count    int           // number of chunks deleted in running round
 	target   int           // number of chunks to delete in running round
 	batch    *dbBatch      // the delete batch
-	runC     chan struct{}
+	runC     chan struct{} // struct in chan means gc is NOT running
 }
 
 type LDBStore struct {
@@ -187,6 +187,7 @@ func NewLDBStore(params *LDBStoreParams) (s *LDBStore, err error) {
 		maxRound: defaultMaxGCRound,
 		ratio:    defaultGCRatio,
 	}
+
 	s.gc.runC = make(chan struct{}, 1)
 	s.gc.runC <- struct{}{}
 
@@ -313,7 +314,6 @@ func decodeData(addr Address, data []byte) (*chunk, error) {
 func (s *LDBStore) collectGarbage() error {
 
 	// prevent duplicate gc from starting when one is already running
-	// runC contains a struct{} as long as we are NOT running
 	if len(s.gc.runC) == 0 {
 		return nil
 	}

swarm/storage/ldbstore_test.go

@@ -589,21 +589,3 @@ func waitGc(ctx context.Context, ldb *LDBStore) {
 	<-ldb.gc.runC
 	ldb.gc.runC <- struct{}{}
 }
-
-//func waitGc(ctx context.Context, ldb *LDBStore) error {
-//	ticker := time.Tick(time.Millisecond * 100)
-//	for {
-//		select {
-//
-//		case <-ctx.Done():
-//			return errors.New("timeout")
-//		case <-ticker:
-//			ldb.lock.Lock()
-//			running := ldb.gc.running
-//			ldb.lock.Unlock()
-//			if !running {
-//				return nil
-//			}
-//		}
-//	}
-//}