紧接Crow:路由局部插件2 调用before_handle-CSDN博客
完成middleware_call_helper的调用后
把res.complete_request_handler设置为后续处理完handle后将要处理的lambda
然后调用rule->handle,之后返回到Connect::handle,参考
Crow:http请求到Rule绑定的handler_的调用链-CSDN博客
void Connnect::handle()
{...if (!res.completed_){res.complete_request_handler_ = [this] {this->complete_request();};need_to_call_after_handlers_ = true;handler_->handle(req_, res, r