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migration: Introduce migration_ioc_[un]register_yank()

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There're plenty of places in migration/* that checks against either socket or
tls typed ioc for yank operations.  Provide two helpers to hide all these
information.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210722175841.938739-4-peterx@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Peter Xu 2021-07-22 13:58:39 -04:00 • committed by Dr. David Alan Gilbert
parent 43044ac0ee
commit 18711405b5
5 changed files with 36 additions and 25 deletions
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8
migration/qemu-file-channel.c
View file

@ -107,12 +107,8 @@ 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_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_TLS))
&& OBJECT(ioc)->ref == 1) {
yank_unregister_function(MIGRATION_YANK_INSTANCE,
migration_yank_iochannel,
QIO_CHANNEL(ioc));
if (OBJECT(ioc)->ref == 1) {
migration_ioc_unregister_yank(ioc);
}
object_unref(OBJECT(ioc));
return ret;