Re: [Xen-devel] [PATCH v4 08/16] tools/libvchan: notify server when client is connected

[Jason Andryuk <jandryuk@gmail.com>]

On Tue, Jan 14, 2020 at 9:42 PM Marek Marczykowski-Górecki
<marmarek@invisiblethingslab.com> wrote:
>
> Let the server know when the client is connected. Otherwise server will
> notice only when client send some data.
> This change does not break existing clients, as libvchan user should
> handle spurious notifications anyway (for example acknowledge of remote
> side reading the data).
>
> Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
> ---
> I had this patch in Qubes for a long time and totally forgot it wasn't
> upstream thing...
> ---
>  tools/libvchan/init.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/tools/libvchan/init.c b/tools/libvchan/init.c
> index 180833d..50a64c1 100644
> --- a/tools/libvchan/init.c
> +++ b/tools/libvchan/init.c
> @@ -447,6 +447,9 @@ struct libxenvchan *libxenvchan_client_init(struct xentoollog_logger *logger,
>         ctrl->ring->cli_live = 1;
>         ctrl->ring->srv_notify = VCHAN_NOTIFY_WRITE;
>
> +    /* wake up the server */
> +    xenevtchn_notify(ctrl->event, ctrl->event_port);

Looks like you used 4 spaces, but the upstream file uses hard tabs.

Regards,
Jason

>   out:
>         if (xs)
>                 xs_daemon_close(xs);
> --
> git-series 0.9.1
>
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> Xen-devel@lists.xenproject.org
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