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compositor-x11: Fix some shutdown crashes

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The assertion in x11_compositor_find_output() can trigger during normal
shutdown, for example, when moving the mouse while hitting a hotkey to
close the weston window.

Instead we can remove the assert(), return NULL, and discard events
we can't find a destination output for.

v2 Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
v1 Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Derek Foreman 2014-12-11 15:44:46 -06:00 • committed by Pekka Paalanen
parent e784e34228
commit 99bfa64799
1 changed files with 14 additions and 2 deletions
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16
src/compositor-x11.c
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@ -920,7 +920,7 @@ x11_compositor_find_output(struct x11_compositor *c, xcb_window_t window)
return output;
}
assert(0);
return NULL;
}
static void
@ -929,7 +929,8 @@ x11_compositor_delete_window(struct x11_compositor *c, xcb_window_t window)
struct x11_output *output;
output = x11_compositor_find_output(c, window);
x11_output_destroy(&output->base);
if (output)
x11_output_destroy(&output->base);
xcb_flush(c->conn);
@ -992,6 +993,8 @@ x11_compositor_deliver_button_event(struct x11_compositor *c,
struct x11_output *output;
output = x11_compositor_find_output(c, button_event->event);
if (!output)
return;
if (state)
xcb_grab_pointer(c->conn, 0, output->window,
@ -1070,6 +1073,9 @@ x11_compositor_deliver_motion_event(struct x11_compositor *c,
if (!c->has_xkb)
update_xkb_state_from_core(c, motion_notify->state);
output = x11_compositor_find_output(c, motion_notify->event);
if (!output)
return;
weston_output_transform_coordinate(&output->base,
wl_fixed_from_int(motion_notify->event_x),
wl_fixed_from_int(motion_notify->event_y),
@ -1096,6 +1102,9 @@ x11_compositor_deliver_enter_event(struct x11_compositor *c,
if (!c->has_xkb)
update_xkb_state_from_core(c, enter_notify->state);
output = x11_compositor_find_output(c, enter_notify->event);
if (!output)
return;
weston_output_transform_coordinate(&output->base,
wl_fixed_from_int(enter_notify->event_x),
wl_fixed_from_int(enter_notify->event_y), &x, &y);
@ -1245,6 +1254,9 @@ x11_compositor_handle_event(int fd, uint32_t mask, void *data)
case XCB_EXPOSE:
expose = (xcb_expose_event_t *) event;
output = x11_compositor_find_output(c, expose->window);
if (!output)
break;
weston_output_damage(&output->base);
weston_output_schedule_repaint(&output->base);
break;