(* 'top'-like tool for libvirt domains. * $Id: virt_top_xml.ml,v 1.1 2007/08/23 09:36:04 rjones Exp $ * * This file contains all code which requires xml-light. *) open ExtList module C = Libvirt.Connect module D = Libvirt.Domain module N = Libvirt.Network ;; Virt_top.parse_device_xml := fun id dom -> try let xml = D.get_xml_desc dom in let xml = Xml.parse_string xml in let devices = match xml with | Xml.Element ("domain", _, children) -> let devices = List.filter_map ( function | Xml.Element ("devices", _, devices) -> Some devices | _ -> None ) children in List.concat devices | _ -> failwith "get_xml_desc didn't return " in let rec target_dev_of = function | [] -> None | Xml.Element ("target", attrs, _) :: rest -> (try Some (List.assoc "dev" attrs) with Not_found -> target_dev_of rest) | _ :: rest -> target_dev_of rest in let blkdevs = List.filter_map ( function | Xml.Element ("disk", _, children) -> target_dev_of children | _ -> None ) devices in let netifs = List.filter_map ( function | Xml.Element ("interface", _, children) -> target_dev_of children | _ -> None ) devices in blkdevs, netifs with | Xml.Error _ | Libvirt.Virterror _ -> [], [] (* ignore transient errs *)