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fingerprint-manager: Cleanup devices cache when fprintd stops

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Marco Trevisan (Treviño) 2020-04-08 00:54:15 +02:00 • committed by Robert Ancell
parent e155b95da6
commit 811d3584b6
1 changed files with 57 additions and 4 deletions
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61
panels/user-accounts/cc-fingerprint-manager.c
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@ -52,6 +52,8 @@ enum {
static GParamSpec *properties[N_PROPS];
static void cleanup_cached_devices (CcFingerprintManager *self);
CcFingerprintManager *
cc_fingerprint_manager_new (ActUser *user)
{
@ -71,7 +73,7 @@ cc_fingerprint_manager_dispose (GObject *object)
}
g_clear_object (&priv->user);
g_list_free_full (g_steal_pointer (&priv->cached_devices), g_object_unref);
cleanup_cached_devices (self);
G_OBJECT_CLASS (cc_fingerprint_manager_parent_class)->dispose (object);
}
@ -171,6 +173,59 @@ object_list_destroy_notify (gpointer data)
g_list_free_full (list, g_object_unref);
}
static void
on_device_owner_changed (CcFingerprintManager *self,
GParamSpec *spec,
CcFprintdDevice *device)
{
g_autofree char *name_owner = NULL;
name_owner = g_dbus_proxy_get_name_owner (G_DBUS_PROXY (device));
if (!name_owner)
{
g_debug ("Fprintd daemon disappeared, cleaning cache...");
cleanup_cached_devices (self);
}
}
static void
cleanup_cached_devices (CcFingerprintManager *self)
{
CcFingerprintManagerPrivate *priv = cc_fingerprint_manager_get_instance_private (self);
CcFprintdDevice *target_device;
if (!priv->cached_devices)
return;
g_return_if_fail (CC_FPRINTD_IS_DEVICE (priv->cached_devices->data));
target_device = CC_FPRINTD_DEVICE (priv->cached_devices->data);
g_signal_handlers_disconnect_by_func (target_device, on_device_owner_changed, self);
g_list_free_full (g_steal_pointer (&priv->cached_devices), g_object_unref);
}
static void
cache_devices (CcFingerprintManager *self,
GList *devices)
{
CcFingerprintManagerPrivate *priv = cc_fingerprint_manager_get_instance_private (self);
CcFprintdDevice *target_device;
g_return_if_fail (devices && CC_FPRINTD_IS_DEVICE (devices->data));
cleanup_cached_devices (self);
priv->cached_devices = g_list_copy_deep (devices, (GCopyFunc) g_object_ref, NULL);
/* We can monitor just the first device name, as the owner is just the same */
target_device = CC_FPRINTD_DEVICE (priv->cached_devices->data);
g_signal_connect_object (target_device, "notify::g-name-owner",
G_CALLBACK (on_device_owner_changed), self,
G_CONNECT_SWAPPED);
}
static void
on_device_proxy (GObject *object, GAsyncResult *res, gpointer user_data)
{
@ -178,7 +233,6 @@ on_device_proxy (GObject *object, GAsyncResult *res, gpointer user_data)
g_autoptr(GTask) task = G_TASK (user_data);
g_autoptr(GError) error = NULL;
CcFingerprintManager *self = g_task_get_source_object (task);
CcFingerprintManagerPrivate *priv = cc_fingerprint_manager_get_instance_private (self);
DeviceListData *list_data = g_task_get_task_data (task);
fprintd_device = cc_fprintd_device_proxy_new_for_bus_finish (res, &error);
@ -200,8 +254,7 @@ on_device_proxy (GObject *object, GAsyncResult *res, gpointer user_data)
if (list_data->waiting_devices == 0)
{
g_list_free_full (g_steal_pointer (&priv->cached_devices), g_object_unref);
priv->cached_devices = g_list_copy_deep (list_data->devices, (GCopyFunc) g_object_ref, NULL);
cache_devices (self, list_data->devices);
g_task_return_pointer (task, g_steal_pointer (&list_data->devices), object_list_destroy_notify);
}
}