1adc1ceef7
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com>
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/*
|
|
* QEMU live migration via generic fd
|
|
*
|
|
* Copyright Red Hat, Inc. 2009-2016
|
|
*
|
|
* Authors:
|
|
* Chris Lalancette <clalance@redhat.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 "channel.h"
|
|
#include "fd.h"
|
|
#include "monitor/monitor.h"
|
|
#include "io/channel-util.h"
|
|
#include "trace.h"
|
|
|
|
|
|
void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp)
|
|
{
|
|
QIOChannel *ioc;
|
|
int fd = monitor_get_fd(cur_mon, fdname, errp);
|
|
if (fd == -1) {
|
|
return;
|
|
}
|
|
|
|
trace_migration_fd_outgoing(fd);
|
|
ioc = qio_channel_new_fd(fd, errp);
|
|
if (!ioc) {
|
|
close(fd);
|
|
return;
|
|
}
|
|
|
|
qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-outgoing");
|
|
migration_channel_connect(s, ioc, NULL);
|
|
object_unref(OBJECT(ioc));
|
|
}
|
|
|
|
static gboolean fd_accept_incoming_migration(QIOChannel *ioc,
|
|
GIOCondition condition,
|
|
gpointer opaque)
|
|
{
|
|
migration_channel_process_incoming(ioc);
|
|
object_unref(OBJECT(ioc));
|
|
return FALSE; /* unregister */
|
|
}
|
|
|
|
void fd_start_incoming_migration(const char *infd, Error **errp)
|
|
{
|
|
QIOChannel *ioc;
|
|
int fd;
|
|
|
|
fd = strtol(infd, NULL, 0);
|
|
trace_migration_fd_incoming(fd);
|
|
|
|
ioc = qio_channel_new_fd(fd, errp);
|
|
if (!ioc) {
|
|
close(fd);
|
|
return;
|
|
}
|
|
|
|
qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-incoming");
|
|
qio_channel_add_watch(ioc,
|
|
G_IO_IN,
|
|
fd_accept_incoming_migration,
|
|
NULL,
|
|
NULL);
|
|
}
|