On 3/12/21 11:00 AM, marcandre.lur...@redhat.com wrote:
> From: Marc-André Lureau <marcandre.lur...@redhat.com>
>
> Track multiple callers blocking requests.
>
> Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com>
> ---
> ui/console.c | 17 +++++++++++++----
> 1 file changed, 13 insertions(+), 4 deletions(-)
>
> diff --git a/ui/console.c b/ui/console.c
> index 53eba2019e..fedb9d8b13 100644
> --- a/ui/console.c
> +++ b/ui/console.c
> @@ -128,7 +128,7 @@ struct QemuConsole {
> DisplaySurface *surface;
> int dcls;
> DisplayChangeListener *gl;
> - bool gl_block;
> + int gl_block;
> int window_id;
>
> /* Graphic console state. */
> @@ -288,10 +288,19 @@ void graphic_hw_gl_block(QemuConsole *con, bool block)
> {
> assert(con != NULL);
>
> - con->gl_block = block;
> - if (con->hw_ops->gl_block) {
> - con->hw_ops->gl_block(con->hw, block);
> + if (block) {
> + con->gl_block++;
> + } else {
> + con->gl_block--;
> + }
> + assert(con->gl_block >= 0);
> + if (!con->hw_ops->gl_block) {
> + return;
> + }
> + if ((block && con->gl_block != 1) || (!block && con->gl_block != 0)) {
Dubious condition check... Could you rewrite it KISS for review?
> + return;
> }
> + con->hw_ops->gl_block(con->hw, block);
> }
>
> void graphic_hw_gl_flushed(QemuConsole *con)
>
