fixed build

Signed-off-by: alecholmez <[email protected]>

Author: alecholmez

pkg/server/sotw/v3/server.go

@@ -206,10 +206,6 @@ func (s *server) process(str stream.Stream, reqCh <-chan *discovery.DiscoveryReq
 			} else {
 				// No pre-existing watch exists, let's create one.
 				// We need to precompute the watches first then open a watch in the cache.
-				watches.responders[typeURL] = &watch{}
-				w = watches.responders[typeURL]
-				watches.recompute(s.ctx, reqCh)
-
 				watches.addWatch(typeURL, &watch{
 					cancel:   s.cache.CreateWatch(req, streamState, responder),
 					response: responder,
@@ -221,6 +217,7 @@ func (s *server) process(str stream.Stream, reqCh <-chan *discovery.DiscoveryReq
 		default:
 			// Channel n -> these are the dynamic list of responders that correspond to the stream request typeURL
 			if !ok {
+				// Receiver channel was closed. TODO(jpeach): probably cancel the watch or something?
 				return status.Errorf(codes.Unavailable, "resource watch %d -> failed", index)
 			}
 

pkg/server/sotw/v3/watches.go

@@ -40,7 +40,8 @@ func (w *watches) close() {
 
 // recomputeWatches rebuilds the known list of dynamic channels if needed
 func (w *watches) recompute(ctx context.Context, req <-chan *discovery.DiscoveryRequest) {
-	w.cases = w.cases[0:]
+	w.cases = w.cases[:0] // Clear the existing cases while retaining capacity.
+
 	w.cases = append(w.cases,
 		reflect.SelectCase{
 			Dir:  reflect.SelectRecv,