Re: [Qemu-devel] [PATCH v4 for-4.0 1/7] char-socket: Enable "nowait" option on client sockets

["Daniel P. Berrangé" <berrange@redhat.com>]

On Fri, Jan 11, 2019 at 04:36:11PM +0800, Yongji Xie wrote:
> On Fri, 11 Jan 2019 at 16:32, Daniel P. Berrangé <berrange@redhat.com> wrote:
> >
> > On Fri, Jan 11, 2019 at 03:50:40PM +0800, Yongji Xie wrote:
> > > On Fri, 11 Jan 2019 at 00:41, Daniel P. Berrangé <berrange@redhat.com> wrote:
> > > >
> > > > We need to fix qemu_chr_fe_wait_connected so that it does explicit
> > > > synchronization wrt to any ongoing background connection process.
> > > > It must only return once all TLS/telnet/websock handshakes have
> > > > completed.  If we fix that correctly, then I believe it will  also
> > > > solve the problem you're trying to address.
> > > >
> > >
> > > Yes, I think this should be the right way to go. To fix it, my thought
> > > is to track the async QIOChannelSocket in SocketChardev. Then we can
> > > easily get the connection progress in qemu_chr_fe_wait_connected(). Do
> > > you have any suggestion?
> >
> > I've got a few patches that refactor the code to fix this. I'll send them
> > today and CC you on them.
> >
> 
> That would be great! Thank you.

It took me rather longer than expected to fully debug all scenarios, but
I've finally sent patches:

https://lists.gnu.org/archive/html/qemu-devel/2019-01/msg03344.html

Regards,
Daniel
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