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Re: [Qemu-devel] [PATCH for-2.12 REPOST] migration: convert socket serve
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH for-2.12 REPOST] migration: convert socket server to QIONetListener |
Date: |
Tue, 13 Mar 2018 12:19:38 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 |
On 13/03/2018 12:06, Daniel P. Berrangé wrote:
> On Tue, Mar 13, 2018 at 11:57:17AM +0100, Paolo Bonzini wrote:
>> On 13/03/2018 10:20, Dr. David Alan Gilbert wrote:
>>>> static void socket_start_incoming_migration(SocketAddress *saddr,
>>>> Error **errp)
>>>> {
>>>> - QIOChannelSocket *listen_ioc = qio_channel_socket_new();
>>>> + QIONetListener *listener = qio_net_listener_new();
>>>>
>>>> - qio_channel_set_name(QIO_CHANNEL(listen_ioc),
>>>> - "migration-socket-listener");
>>>> + qio_net_listener_set_name(listener, "migration-socket-listener");
>>>>
>>>> - if (qio_channel_socket_listen_sync(listen_ioc, saddr, errp) < 0) {
>>>> - object_unref(OBJECT(listen_ioc));
>>>> + if (qio_net_listener_open_sync(listener, saddr, errp) < 0) {
>>>> + object_unref(OBJECT(listener));
>>>> return;
>>>> }
>>>>
>>>> - qio_channel_add_watch(QIO_CHANNEL(listen_ioc),
>>>> - G_IO_IN,
>>>> - socket_accept_incoming_migration,
>>>> - listen_ioc,
>>>> - (GDestroyNotify)object_unref);
>>>> + qio_net_listener_set_client_func(listener,
>>>> + socket_accept_incoming_migration,
>>>> + NULL, NULL);
>>>> }
>>>>
>>>> void tcp_start_incoming_migration(const char *host_port, Error **errp)
>>>> --
>>>> 2.14.3
>>>>
>>> --
>>> Dr. David Alan Gilbert / address@hidden / Manchester, UK
>>>
>>
>> Could this get in 2.12 as a bugfix, even after soft freeze? It's the
>> last user of qio_channel_listen_sync that blocks full IPv4/IPv6 support.
>> All other users are for vsock/AF_UNIX.
>
> I had been thinking of all this conversion as feature, but I guess if we
> squint our eyes a bit we could claim it is just a bugfix on the grounds
> that it is fixing broken IPv4/6 dual stack support.
It is certainly a feature, but when only one listener remains broken
then it becomes more of a bugfix.
Paolo
Re: [Qemu-devel] [PATCH for-2.12 REPOST] migration: convert socket server to QIONetListener, Dr. David Alan Gilbert, 2018/03/23