object-manager.c

  reg = wp_core_get_registry (self);

  g_object_weak_ref (G_OBJECT (om), object_manager_destroyed, reg);
  g_ptr_array_add (reg->object_managers, om);
  g_object_set (om, "core", self, NULL);

  /* add pre-existing objects to the object manager,
     in case it's interested in them */
  for (i = 0; i < reg->globals->len; i++) {
    WpGlobal *g = g_ptr_array_index (reg->globals, i);
    /* check if null because the globals array can have gaps */
    if (g)
      wp_object_manager_add_global (om, g);
  }
  for (i = 0; i < reg->objects->len; i++) {
    GObject *o = g_ptr_array_index (reg->objects, i);
    wp_object_manager_add_object (om, o);
  }
}

/* WpGlobal */

G_DEFINE_BOXED_TYPE (WpGlobal, wp_global, wp_global_ref, wp_global_unref)

void
wp_global_rm_flag (WpGlobal *global, guint rm_flag)
{
  WpRegistry *reg = global->registry;

  /* no flag to remove */
  if (!(global->flags & rm_flag))
    return;

  /* global was owned by the proxy; by removing the flag, we clear out
     also the proxy pointer, which is presumably no longer valid and we
     notify all listeners that the proxy is gone */
  if (rm_flag == WP_GLOBAL_FLAG_OWNED_BY_PROXY) {
    global->flags &= ~WP_GLOBAL_FLAG_OWNED_BY_PROXY;
    if (reg)
      wp_registry_notify_rm_object (reg, global->proxy);
    global->proxy = NULL;
  }
  /* registry removed the global */
  else if (rm_flag == WP_GLOBAL_FLAG_APPEARS_ON_REGISTRY) {
    global->flags &= ~WP_GLOBAL_FLAG_APPEARS_ON_REGISTRY;

    /* if there is a proxy and it's not owning the global, destroy it */
    if (global->flags == 0 && global->proxy) {
      if (reg)
        wp_registry_notify_rm_object (reg, global->proxy);
      wp_proxy_destroy (global->proxy);
      g_clear_object (&global->proxy);
    }
  }

  /* drop the registry's ref on global when it has no flags anymore */
  if (global->flags == 0 && reg) {
    g_clear_pointer (&g_ptr_array_index (reg->globals, global->id), wp_global_unref);
  }
}

struct pw_proxy *
wp_global_bind (WpGlobal * global)
{
  g_return_val_if_fail (global->proxy, NULL);
  g_return_val_if_fail (global->registry, NULL);

  WpProxyClass *klass = WP_PROXY_GET_CLASS (global->proxy);
  return pw_registry_bind (global->registry->pw_registry, global->id,
      klass->pw_iface_type, klass->pw_iface_version, 0);
}