[Spice-devel] linux vdagent prototype, get it while it is hot :)

[Hans de Goede]

Replying to myself :)

On 09/15/2010 10:56 PM, Hans de Goede wrote:
> Hi All,
>
> As some of you know I've been working on a prototype for
> a Linux agent.
>
> I've most of the framework in place. Currently it does
> not do anything but client mouse mode, but adding more
> stuff should be relatively easy.
>
> You can grab it here:
> http://cgit.freedesktop.org/~jwrdegoede/vdagent-linux/
>
> A simple "make" will give you a vdagentd and a vdagent, start
> vdagentd as root, chmod 666 /tmp/vdagent (to be fixed) and
> then start vdagent from your x11 session.
>
> I used kraxels evdev userspace (uinput) device using agent
> prototype as a basis for this.
>
> The biggest difference is the addition of a separate process
> to run in the xorg session (and communication between the 2).
>
> With the current code this separate vdagent process notifies
> the vdagentd of the x11 root window size, so that it can
> adjust the uinput device's dimensions to match, this removes
> the need for telling vdagentd the size manually, and makes
> vdagentd automatically adjust the uinput device for xserver
> resolution changes.
>

p.s.

Note that due to a kernel bug, unless you patch your kernel
vdagentd can get behind with mouse agent message processing,
this is caused by select on the virtio port blocking even
though there is data to be read, see:
http://lists.freedesktop.org/archives/spice-devel/2010-September/001151.html

For details and a patch fixing this. I've already added this
patch to the F-14 kernels, so the next F-14 kernel build
won't have this issue.

Regards,

Hans