Merge remote-tracking branch 'qemu/master'
[qemu/ar7.git] / replication.c
blobbe3a42f9c9dcc67704c5e9b10b3baf49dc1a10fd
1 /*
2 * Replication filter
4 * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
5 * Copyright (c) 2016 Intel Corporation
6 * Copyright (c) 2016 FUJITSU LIMITED
8 * Author:
9 * Changlong Xie <xiecl.fnst@cn.fujitsu.com>
11 * This work is licensed under the terms of the GNU GPL, version 2 or later.
12 * See the COPYING file in the top-level directory.
15 #include "qemu/osdep.h"
16 #include "qapi/error.h"
17 #include "replication.h"
19 static QLIST_HEAD(, ReplicationState) replication_states;
21 ReplicationState *replication_new(void *opaque, ReplicationOps *ops)
23 ReplicationState *rs;
25 assert(ops != NULL);
26 rs = g_new0(ReplicationState, 1);
27 rs->opaque = opaque;
28 rs->ops = ops;
29 QLIST_INSERT_HEAD(&replication_states, rs, node);
31 return rs;
34 void replication_remove(ReplicationState *rs)
36 if (rs) {
37 QLIST_REMOVE(rs, node);
38 g_free(rs);
43 * The caller of the function MUST make sure vm stopped
45 void replication_start_all(ReplicationMode mode, Error **errp)
47 ReplicationState *rs, *next;
48 Error *local_err = NULL;
50 QLIST_FOREACH_SAFE(rs, &replication_states, node, next) {
51 if (rs->ops && rs->ops->start) {
52 rs->ops->start(rs, mode, &local_err);
54 if (local_err) {
55 error_propagate(errp, local_err);
56 return;
61 void replication_do_checkpoint_all(Error **errp)
63 ReplicationState *rs, *next;
64 Error *local_err = NULL;
66 QLIST_FOREACH_SAFE(rs, &replication_states, node, next) {
67 if (rs->ops && rs->ops->checkpoint) {
68 rs->ops->checkpoint(rs, &local_err);
70 if (local_err) {
71 error_propagate(errp, local_err);
72 return;
77 void replication_get_error_all(Error **errp)
79 ReplicationState *rs, *next;
80 Error *local_err = NULL;
82 QLIST_FOREACH_SAFE(rs, &replication_states, node, next) {
83 if (rs->ops && rs->ops->get_error) {
84 rs->ops->get_error(rs, &local_err);
86 if (local_err) {
87 error_propagate(errp, local_err);
88 return;
93 void replication_stop_all(bool failover, Error **errp)
95 ReplicationState *rs, *next;
96 Error *local_err = NULL;
98 QLIST_FOREACH_SAFE(rs, &replication_states, node, next) {
99 if (rs->ops && rs->ops->stop) {
100 rs->ops->stop(rs, failover, &local_err);
102 if (local_err) {
103 error_propagate(errp, local_err);
104 return;