qemu/migration/colo-failover.c

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/*
* COarse-grain LOck-stepping Virtual Machines for Non-stop Service (COLO)
* (a.k.a. Fault Tolerance or Continuous Replication)
*
* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
* Copyright (c) 2016 FUJITSU LIMITED
* Copyright (c) 2016 Intel Corporation
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* later. See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "migration/colo.h"
#include "migration/failover.h"
#include "qmp-commands.h"
#include "qapi/qmp/qerror.h"
static QEMUBH *failover_bh;
static void colo_failover_bh(void *opaque)
{
qemu_bh_delete(failover_bh);
failover_bh = NULL;
/* TODO: Do failover work */
}
void failover_request_active(Error **errp)
{
failover_bh = qemu_bh_new(colo_failover_bh, NULL);
qemu_bh_schedule(failover_bh);
}
void qmp_x_colo_lost_heartbeat(Error **errp)
{
if (get_colo_mode() == COLO_MODE_UNKNOWN) {
error_setg(errp, QERR_FEATURE_DISABLED, "colo");
return;
}
failover_request_active(errp);
}