XML_CRM_TAG_PING  150 daemons/based/based_messages.c     *answer = create_xml_node(NULL, XML_CRM_TAG_PING);
XML_CRM_TAG_PING  773 daemons/controld/controld_messages.c     ping = create_xml_node(NULL, XML_CRM_TAG_PING);
XML_CRM_TAG_PING   55 daemons/pacemakerd/pcmkd_messages.c     ping = create_xml_node(NULL, XML_CRM_TAG_PING);