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net: Introduce announce timer

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The 'announce timer' will be used by migration, and explicit
requests for qemu to perform network announces.

Based on the work by Germano Veit Michel <germano@redhat.com>
 and Vlad Yasevich <vyasevic@redhat.com>

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2019-02-27 13:24:05 +00:00 • committed by Jason Wang
parent 4875bf1406
commit 50510ea2c2
6 changed files with 125 additions and 0 deletions
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39
include/net/announce.h Normal file
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/*
* Self-announce facility
* (c) 2017-2019 Red Hat, Inc.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef QEMU_NET_ANNOUNCE_H
#define QEMU_NET_ANNOUNCE_H
#include "qemu-common.h"
#include "qapi/qapi-types-net.h"
#include "qemu/timer.h"
struct AnnounceTimer {
QEMUTimer *tm;
AnnounceParameters params;
QEMUClockType type;
int round;
};
/* Returns: update the timer to the next time point */
int64_t qemu_announce_timer_step(AnnounceTimer *timer);
/* Delete the underlying timer */
void qemu_announce_timer_del(AnnounceTimer *timer);
/*
* Under BQL/main thread
* Reset the timer to the given parameters/type/notifier.
*/
void qemu_announce_timer_reset(AnnounceTimer *timer,
AnnounceParameters *params,
QEMUClockType type,
QEMUTimerCB *cb,
void *opaque);
#endif