Remove has_pending_responses_

src/connection.cpp

@@ -132,10 +132,8 @@ void Connection::send_response(void *protocol_context,
   pending_response_queue_.emplace_back(
       PendingResponse{protocol_context, response_json, std::move(arena)});
 
-  // Mark that we have pending responses and trigger epoll interest
-  if (!has_pending_responses_) {
-    has_pending_responses_ = true;
-
+  // Trigger epoll interest if this is the first pending response
+  if (pending_response_queue_.size() == 1) {
     auto server = server_.lock();
     if (fd_ >= 0 && server) {
       // Add EPOLLOUT interest to trigger on_preprocess_writes