From e9afae72f098b2ca22da639eac05ef39f52ee611 Mon Sep 17 00:00:00 2001
From: Andy Wang <cbeuw.andy@gmail.com>
Date: Sun, 5 Apr 2020 00:51:28 +0100
Subject: [PATCH] better stream closing error message

---
 internal/multiplex/session.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/internal/multiplex/session.go b/internal/multiplex/session.go
index 8fe2f6f..eb82052 100644
--- a/internal/multiplex/session.go
+++ b/internal/multiplex/session.go
@@ -143,7 +143,7 @@ func (sesh *Session) Accept() (net.Conn, error) {
 
 func (sesh *Session) closeStream(s *Stream, active bool) error {
 	if s.isClosed() {
-		return errors.New("Already Closed")
+		return fmt.Errorf("stream %v is already closed", s.id)
 	}
 	atomic.StoreUint32(&s.closed, 1)
 	_ = s.recvBuf.Close() // both datagramBuffer and streamBuffer won't return err on Close()