mirror of
https://github.com/qemu/qemu.git
synced 2024-12-29 23:23:55 +08:00
190b9a8b55
This commit introduces six replication interfaces(for block, network etc). Firstly we can use replication_(new/remove) to create/destroy replication instances, then in migration we can use replication_(start/stop/do_checkpoint /get_error)_all to handle all replication operations. More detail please refer to replication.h Signed-off-by: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com> Signed-off-by: Wang WeiWei <wangww.fnst@cn.fujitsu.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Message-id: 1469602913-20979-9-git-send-email-xiecl.fnst@cn.fujitsu.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
108 lines
2.5 KiB
C
108 lines
2.5 KiB
C
/*
|
|
* Replication filter
|
|
*
|
|
* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
|
|
* Copyright (c) 2016 Intel Corporation
|
|
* Copyright (c) 2016 FUJITSU LIMITED
|
|
*
|
|
* Author:
|
|
* Changlong Xie <xiecl.fnst@cn.fujitsu.com>
|
|
*
|
|
* 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 "qapi/error.h"
|
|
#include "replication.h"
|
|
|
|
static QLIST_HEAD(, ReplicationState) replication_states;
|
|
|
|
ReplicationState *replication_new(void *opaque, ReplicationOps *ops)
|
|
{
|
|
ReplicationState *rs;
|
|
|
|
assert(ops != NULL);
|
|
rs = g_new0(ReplicationState, 1);
|
|
rs->opaque = opaque;
|
|
rs->ops = ops;
|
|
QLIST_INSERT_HEAD(&replication_states, rs, node);
|
|
|
|
return rs;
|
|
}
|
|
|
|
void replication_remove(ReplicationState *rs)
|
|
{
|
|
if (rs) {
|
|
QLIST_REMOVE(rs, node);
|
|
g_free(rs);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The caller of the function MUST make sure vm stopped
|
|
*/
|
|
void replication_start_all(ReplicationMode mode, Error **errp)
|
|
{
|
|
ReplicationState *rs, *next;
|
|
Error *local_err = NULL;
|
|
|
|
QLIST_FOREACH_SAFE(rs, &replication_states, node, next) {
|
|
if (rs->ops && rs->ops->start) {
|
|
rs->ops->start(rs, mode, &local_err);
|
|
}
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void replication_do_checkpoint_all(Error **errp)
|
|
{
|
|
ReplicationState *rs, *next;
|
|
Error *local_err = NULL;
|
|
|
|
QLIST_FOREACH_SAFE(rs, &replication_states, node, next) {
|
|
if (rs->ops && rs->ops->checkpoint) {
|
|
rs->ops->checkpoint(rs, &local_err);
|
|
}
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void replication_get_error_all(Error **errp)
|
|
{
|
|
ReplicationState *rs, *next;
|
|
Error *local_err = NULL;
|
|
|
|
QLIST_FOREACH_SAFE(rs, &replication_states, node, next) {
|
|
if (rs->ops && rs->ops->get_error) {
|
|
rs->ops->get_error(rs, &local_err);
|
|
}
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void replication_stop_all(bool failover, Error **errp)
|
|
{
|
|
ReplicationState *rs, *next;
|
|
Error *local_err = NULL;
|
|
|
|
QLIST_FOREACH_SAFE(rs, &replication_states, node, next) {
|
|
if (rs->ops && rs->ops->stop) {
|
|
rs->ops->stop(rs, failover, &local_err);
|
|
}
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
}
|
|
}
|