conn: don't send message if context is already cancelled

godbus · Feb 13, 2022 · d0c202b · d0c202b
1 parent 041560b
commit d0c202b
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/conn.go b/conn.go
@@ -551,6 +551,11 @@ func (conn *Conn) send(ctx context.Context, msg *Message, ch chan *Call) *Call {
 		call.ctx = ctx
 		call.ctxCanceler = canceler
 		conn.calls.track(msg.serial, call)
+		if ctx.Err() != nil {
+			// short path: don't even send the message if context already cancelled
+			conn.calls.handleSendError(msg, ctx.Err())
+			return call
+		}
 		go func() {
 			<-ctx.Done()
 			conn.calls.handleSendError(msg, ctx.Err())