int handle(const uchar *data, ulong len)! 267 {! 268 this->incoming->push(new Data_packet(data, len));! 269 return 0;! 270 }! �:���process_notification������������� ������ Applier_module::applier_thread_handle! ��incoming������! ����(packet)�����������! Applier��! ���DATA_PACKET_TYPE���binlog�����apply_data_packet��! Certification_handler::handle_event ����! Certificati applier_thread_handle���� ! this->incoming->front(&packet); // blocking! ! switch (packet->get_packet_type())! {! case ACTION_PACKET_TYPE:! this->incoming->pop();! �