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CA-419908: Update xenstore watcher to refresh domains when VM is renamed #6773

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Merged
merged 3 commits into from
Dec 1, 2025
Merged

CA-419908: Update xenstore watcher to refresh domains when VM is renamed #6773

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98d5077
CA-419908: Move module Watcher ahead for future use in module VM
minglumlu Nov 28, 2025
6967983
CA-419908: Update xenstore watcher to refresh domains when VM is renamed
minglumlu Nov 28, 2025
1b7f149
Refactor IntMap to use built-in Int module in Map.Make
minglumlu Dec 1, 2025
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14 changes: 11 additions & 3 deletions ocaml/libs/ezxenstore/watch/ez_xenstore_watch.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,10 @@ module Make (Debug : DEBUG) = struct
in
List.map fst (IntMap.bindings c)

let need_refresh_domains = Atomic.make false

let mark_refresh_domains () = Atomic.set need_refresh_domains true

let with_xc_and_xs f =
Xenctrl.with_intf (fun xc -> with_xs (fun xs -> f xc xs))

Expand Down Expand Up @@ -196,9 +200,13 @@ module Make (Debug : DEBUG) = struct
in

let process_one_watch c (path, _token) =
if path = _introduceDomain || path = _releaseDomain then
look_for_different_domains ()
else
if
Atomic.exchange need_refresh_domains false
|| path = _introduceDomain
|| path = _releaseDomain
then
look_for_different_domains () ;
if path <> _introduceDomain && path <> _releaseDomain then
Client.immediate c (fun h ->
let xs = Xs.ops h in
Actions.watch_fired xc xs path !domains !watches
Expand Down
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