1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* QEMU live migration
*
* Copyright IBM, Corp. 2008
* Copyright Dell MessageOne 2008
* Copyright Red Hat, Inc. 2015-2016
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
* Charles Duffy <charles_duffy@messageone.com>
* Daniel P. Berrange <berrange@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu-common.h"
#include "migration/migration.h"
#include "io/channel-command.h"
#include "trace.h"
void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp)
{
QIOChannel *ioc;
const char *argv[] = { "/bin/sh", "-c", command, NULL };
trace_migration_exec_outgoing(command);
ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv,
O_WRONLY,
errp));
if (!ioc) {
return;
}
migration_set_outgoing_channel(s, ioc, NULL);
object_unref(OBJECT(ioc));
}
static gboolean exec_accept_incoming_migration(QIOChannel *ioc,
GIOCondition condition,
gpointer opaque)
{
migration_set_incoming_channel(migrate_get_current(), ioc);
object_unref(OBJECT(ioc));
return FALSE; /* unregister */
}
void exec_start_incoming_migration(const char *command, Error **errp)
{
QIOChannel *ioc;
const char *argv[] = { "/bin/sh", "-c", command, NULL };
trace_migration_exec_incoming(command);
ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv,
O_RDONLY,
errp));
if (!ioc) {
return;
}
qio_channel_add_watch(ioc,
G_IO_IN,
exec_accept_incoming_migration,
NULL,
NULL);
}
|