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migration: Add yank feature

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Register yank functions on sockets to shut them down.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <484c6a14cc2506bebedd5a237259b91363ff8f88.1609167865.git.lukasstraub2@web.de>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Lukas Straub 2020-12-28 16:08:52 +01:00 • committed by Markus Armbruster
parent 8ee4480692
commit b5eea99ec2
5 changed files with 57 additions and 0 deletions
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7
migration/qemu-file-channel.c
View file

@ -27,6 +27,7 @@
#include "qemu-file.h"
#include "io/channel-socket.h"
#include "qemu/iov.h"
#include "qemu/yank.h"
static ssize_t channel_writev_buffer(void *opaque,
@ -104,6 +105,12 @@ static int channel_close(void *opaque, Error **errp)
int ret;
QIOChannel *ioc = QIO_CHANNEL(opaque);
ret = qio_channel_close(ioc, errp);
if (object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_SOCKET)
&& OBJECT(ioc)->ref == 1) {
yank_unregister_function(MIGRATION_YANK_INSTANCE,
yank_generic_iochannel,
QIO_CHANNEL(ioc));
}
object_unref(OBJECT(ioc));
return ret;
}