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(*
* Copyright (C) 2006-2007 XenSource Ltd.
* Copyright (C) 2008 Citrix Ltd.
* Author Vincent Hanquez <vincent.hanquez@eu.citrix.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; version 2.1 only. with the special
* exception on linking described in file LICENSE.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*)
type domains = {
eventchn: Event.t;
table: (Xenctrl.domid, Domain.t) Hashtbl.t;
}
let init eventchn =
{ eventchn = eventchn; table = Hashtbl.create 10 }
let del doms id = Hashtbl.remove doms.table id
let exist doms id = Hashtbl.mem doms.table id
let find doms id = Hashtbl.find doms.table id
let number doms = Hashtbl.length doms.table
let iter doms fct = Hashtbl.iter (fun _ b -> fct b) doms.table
let cleanup xc doms =
let notify = ref false in
let dead_dom = ref [] in
Hashtbl.iter (fun id _ -> if id <> 0 then
try
let info = Xenctrl.domain_getinfo xc id in
if info.Xenctrl.shutdown || info.Xenctrl.dying then (
Logs.debug "general" "Domain %u died (dying=%b, shutdown %b -- code %d)"
id info.Xenctrl.dying info.Xenctrl.shutdown info.Xenctrl.shutdown_code;
if info.Xenctrl.dying then
dead_dom := id :: !dead_dom
else
notify := true;
)
with Xenctrl.Error _ ->
Logs.debug "general" "Domain %u died -- no domain info" id;
dead_dom := id :: !dead_dom;
) doms.table;
List.iter (fun id ->
let dom = Hashtbl.find doms.table id in
Domain.close dom;
Hashtbl.remove doms.table id;
) !dead_dom;
!notify, !dead_dom
let resume doms domid =
()
let create xc doms domid mfn port =
let interface = Xenctrl.map_foreign_range xc domid (Xenmmap.getpagesize()) mfn in
let dom = Domain.make domid mfn port interface doms.eventchn in
Hashtbl.add doms.table domid dom;
Domain.bind_interdomain dom;
dom
let create0 fake doms =
let port, interface =
if fake then (
0, Xenctrl.with_intf (fun xc -> Xenctrl.map_foreign_range xc 0 (Xenmmap.getpagesize()) 0n)
) else (
let port = Utils.read_file_single_integer Define.xenstored_proc_port
and fd = Unix.openfile Define.xenstored_proc_kva
[ Unix.O_RDWR ] 0o600 in
let interface = Xenmmap.mmap fd Xenmmap.RDWR Xenmmap.SHARED
(Xenmmap.getpagesize()) 0 in
Unix.close fd;
port, interface
)
in
let dom = Domain.make 0 Nativeint.zero port interface doms.eventchn in
Hashtbl.add doms.table 0 dom;
Domain.bind_interdomain dom;
Domain.notify dom;
dom
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