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xwayland: Handle the died callback being cancelled more gracefully

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If we were cancelled, it could mean we teared down, meaning fetching
manager instances will attempt to fetch past freed instances. Handle
this by waiting with the fetching until we know we weren't cancelled.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2140>
This commit is contained in:
Jonas Ådahl 2021-10-28 15:33:03 +02:00 committed by Marge Bot
parent ad0d70d5d5
commit 29141afd0f
1 changed files with 6 additions and 4 deletions
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10
src/wayland/meta-xwayland.c
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@ -536,14 +536,12 @@ xserver_died (GObject *source,
GAsyncResult *result,
gpointer user_data)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandCompositor *compositor;
GSubprocess *proc = G_SUBPROCESS (source);
MetaDisplay *display = meta_get_display ();
g_autoptr (GError) error = NULL;
MetaX11DisplayPolicy x11_display_policy;
x11_display_policy =
meta_context_get_x11_display_policy (compositor->context);
if (!g_subprocess_wait_finish (proc, result, &error))
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
@ -551,7 +549,11 @@ xserver_died (GObject *source,
g_warning ("Failed to finish waiting for Xwayland: %s", error->message);
}
else if (!g_subprocess_get_successful (proc))
compositor = meta_wayland_compositor_get_default ();
x11_display_policy =
meta_context_get_x11_display_policy (compositor->context);
if (!g_subprocess_get_successful (proc))
{
if (x11_display_policy == META_X11_DISPLAY_POLICY_MANDATORY)
g_warning ("X Wayland crashed; exiting");