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net/announce: Allow optional list of interfaces

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Allow the caller to restrict the set of interfaces that announces are
sent on.  The default is still to send on all interfaces.

e.g.

  { "execute": "announce-self", "arguments": { "initial": 50, "max": 550, "rounds": 5, "step": 50, "interfaces": ["vn2", "vn1"] } }

This doesn't affect the behaviour of migraiton announcments.

Note: There's still only one timer for the qmp command, so that
performing an 'announce-self' on one list of interfaces followed
by another 'announce-self' on another list will stop the announces
on the existing set.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2019-06-20 19:47:02 +01:00 • committed by Jason Wang
parent 4623027d86
commit ef2fdbfb4d
4 changed files with 42 additions and 12 deletions
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2
include/net/announce.h
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@ -22,7 +22,7 @@ struct AnnounceTimer {
/* Returns: update the timer to the next time point */
int64_t qemu_announce_timer_step(AnnounceTimer *timer);
/* Delete the underlying timer */
/* Delete the underlying timer and other data */
void qemu_announce_timer_del(AnnounceTimer *timer);
/*