fix: admin undo/redo failure, video poker cabinet ids, room ref behavior

1 files changed, 5 insertions, 1 deletions

diff --git a/internal/net/conn.go b/internal/net/conn.go
index a4be83a..d8c867e 100644
--- a/internal/net/conn.go
+++ b/internal/net/conn.go
@@ -79,7 +79,11 @@ func (t *tcpConn) ReadMessage() (string, error) {
 	text = stripIAC(text)
 	text = truncateLine(text, maxLineLength)
 	if t.echoOff.Load() {
-		t.conn.Write([]byte("\r\n"))
+		// Refresh the write deadline: the writer goroutine may have left a
+		// stale deadline in the past, which would silently drop this echo on
+		// an idle connection.
+		_ = t.conn.SetWriteDeadline(time.Now().Add(writeDeadline))
+		_, _ = t.conn.Write([]byte("\r\n"))
 	}
 	return text, nil
 }