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wayland-surface: disconnect signals on destroy

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Otherwise signal handlers will be called on garbage

https://bugzilla.gnome.org/show_bug.cgi?id=756548
This commit is contained in:
Giovanni Campagna 2015-10-13 21:33:15 -07:00
parent f2afa7aa6c
commit a4f763ac3b
2 changed files with 23 additions and 12 deletions
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33
src/wayland/meta-wayland-surface.c
View File

@ -933,22 +933,26 @@ set_surface_is_on_output (MetaWaylandSurface *surface,
MetaWaylandOutput *wayland_output,
gboolean is_on_output)
{
gboolean was_on_output = g_hash_table_contains (surface->outputs,
wayland_output);
gpointer orig_id;
gboolean was_on_output = g_hash_table_lookup_extended (surface->outputs_to_destroy_notify_id,
wayland_output,
NULL, &orig_id);
if (!was_on_output && is_on_output)
{
g_signal_connect (wayland_output, "output-destroyed",
G_CALLBACK (surface_handle_output_destroy),
surface);
g_hash_table_add (surface->outputs, wayland_output);
gulong id;
id = g_signal_connect (wayland_output, "output-destroyed",
G_CALLBACK (surface_handle_output_destroy),
surface);
g_hash_table_insert (surface->outputs_to_destroy_notify_id, wayland_output,
GSIZE_TO_POINTER ((gsize)id));
surface_entered_output (surface, wayland_output);
}
else if (was_on_output && !is_on_output)
{
g_hash_table_remove (surface->outputs, wayland_output);
g_signal_handlers_disconnect_by_func (
wayland_output, (gpointer)surface_handle_output_destroy, surface);
g_hash_table_remove (surface->outputs_to_destroy_notify_id, wayland_output);
g_signal_handler_disconnect (wayland_output, (gulong) GPOINTER_TO_SIZE (orig_id));
surface_left_output (surface, wayland_output);
}
}
@ -986,6 +990,12 @@ update_surface_output_state (gpointer key, gpointer value, gpointer user_data)
set_surface_is_on_output (surface, wayland_output, is_on_output);
}
static void
surface_output_disconnect_signal (gpointer key, gpointer value, gpointer user_data)
{
g_signal_handler_disconnect (key, (gulong) GPOINTER_TO_SIZE (value));
}
void
meta_wayland_surface_update_outputs (MetaWaylandSurface *surface)
{
@ -1036,7 +1046,8 @@ wl_surface_destructor (struct wl_resource *resource)
meta_wayland_compositor_destroy_frame_callbacks (compositor, surface);
g_hash_table_unref (surface->outputs);
g_hash_table_foreach (surface->outputs_to_destroy_notify_id, surface_output_disconnect_signal, surface);
g_hash_table_unref (surface->outputs_to_destroy_notify_id);
wl_list_for_each_safe (cb, next, &surface->pending_frame_callback_list, link)
wl_resource_destroy (cb->resource);
@ -1081,7 +1092,7 @@ meta_wayland_surface_create (MetaWaylandCompositor *compositor,
sync_drag_dest_funcs (surface);
surface->outputs = g_hash_table_new (NULL, NULL);
surface->outputs_to_destroy_notify_id = g_hash_table_new (NULL, NULL);
pending_state_init (&surface->pending);
return surface;

2
src/wayland/meta-wayland-surface.h
View File

@ -147,7 +147,7 @@ struct _MetaWaylandSurface
int scale;
int32_t offset_x, offset_y;
GList *subsurfaces;
GHashTable *outputs;
GHashTable *outputs_to_destroy_notify_id;
/* List of pending frame callbacks that needs to stay queued longer than one
* commit sequence, such as when it has not yet been assigned a role.