multiple wl surfaces commit in one client

[Simon Ser]

Hi,

On Friday, November 6, 2020 3:14 AM, zou lan <nancy.lan.zou at gmail.com> wrote:

> Hi Simon & pekka
>
> Thank you for your reply!
>
> >>The OS could pre-empt the client after
> >>the first wl_surface_commit is flushed on the wire and before the
> >>second one is.
>
> I want to ask if after first wl_surface_commit, but I don't call
> wl_display_flush/wl_display_dispatch, is the first wl_surface_commit
> flushed to server because  out buffer of the connection is full?

That is correct.

> https://github.com/wayland-project/wayland/blob/master/src/connection.c,
> can we increase the buffer size in this structure wl_buffer to reduce
> the possibility of this? 

I'd rather not. This would not fix the issue, and it's unclear if it'd
really help.

> By the way, for the WIP protocol,
> https://gitlab.freedesktop.org/jadahl/wayland-protocols/-/blob/wip/transactions/unstable/transactions/transactions-unstable-v1.xml,
> do we have any patchset in weston to implement it? I don't find it in
> weston master branch. 

I'm not aware of any Weston implementation as of yet. As you can see,
the protocol hasn't yet been merged in wayland-protocols. Writing a new
implementation would certainly help getting the protocol merged.