fix: various locks in the signaler

cmd/watcher/watcher.go

@@ -83,7 +83,8 @@ func main() {
 		// Wait for a session request
 		session, err := client.PopSession(ctx, withAuth(token, &pb.PopSessionRequest{}))
 		if err != nil {
-			if s, ok := status.FromError(err); ok && s.Code() == codes.NotFound {
+			code, hasCode := status.FromError(err)
+			if hasCode && code.Code() == codes.NotFound {
 				// try getting a new token
 				token, err = getAuthToken(ctx, client, cfg)
 				if err != nil {
@@ -91,7 +92,10 @@ func main() {
 				}
 				continue
 			}
-			log.Error().Err(err).Msg("error creating session")
+			log.Error().Err(err).Str("code", fmt.Sprintf("code %d", code.Code())).Bool("has code", hasCode).Msg("error creating session")
+			continue
+		}
+		if session.Msg.GetId() == nil {
 			continue
 		}
 		go handleSession(ctx, client, token, session, vid)