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Introduce VIR_CONNECT_GET_ALL_DOMAINS_STATS_NOWAIT

Browse Source 
https://bugzilla.redhat.com/show_bug.cgi?id=1552092

If there's a long running job it might cause us to wait 30
seconds before we give up acquiring the job. This is problematic
to interactive applications that fetch stats repeatedly every few
seconds.

The solution is to introduce
VIR_CONNECT_GET_ALL_DOMAINS_STATS_NOWAIT flag which tries to
acquire job but does not wait if acquiring failed.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
Michal Privoznik
2018-06-19 07:08:13 +02:00
parent f38ea75b99
commit 0afbeb3740
3 changed files with 26 additions and 3 deletions
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include/libvirt/libvirt-domain.h
+2
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@@ -2055,6 +2055,8 @@ typedef enum {
VIR_CONNECT_GET_ALL_DOMAINS_STATS_SHUTOFF = VIR_CONNECT_LIST_DOMAINS_SHUTOFF,
VIR_CONNECT_GET_ALL_DOMAINS_STATS_OTHER = VIR_CONNECT_LIST_DOMAINS_OTHER,
VIR_CONNECT_GET_ALL_DOMAINS_STATS_NOWAIT = 1 << 29, /* report statistics that can be obtained
immediately without any blocking */
VIR_CONNECT_GET_ALL_DOMAINS_STATS_BACKING = 1 << 30, /* include backing chain for block stats */
VIR_CONNECT_GET_ALL_DOMAINS_STATS_ENFORCE_STATS = 1U << 31, /* enforce requested stats */
} virConnectGetAllDomainStatsFlags;