int clean_population()
/* Frees memory for all individuals in population and for the global
population itself. */
{
int current_id;
if (NULL != global_population.individual_array)
{
current_id = get_first();
while(current_id != -1)
{
remove_individual(current_id);
current_id = get_next(current_id);
}
free_stack(&global_population.free_ids_stack);
free(global_population.individual_array);
global_population.individual_array = NULL;
global_population.size = 0;
global_population.last_identity = -1;
}
return (0);
}
/* This is emitted for *all* individuals in the individual aggregator (not
* just the ones we keep a reference to), to allow for the case where a new
* individual doesn't contain an EmpathyContact, but later has a persona added
* which does. */
static void
individual_notify_personas_cb (FolksIndividual *individual,
GParamSpec *pspec,
EmpathyIndividualManager *self)
{
EmpathyIndividualManagerPriv *priv = GET_PRIV (self);
const gchar *id = folks_individual_get_id (individual);
gboolean has_contact = empathy_folks_individual_contains_contact (individual);
gboolean had_contact = (g_hash_table_lookup (priv->individuals,
id) != NULL) ? TRUE : FALSE;
if (had_contact == TRUE && has_contact == FALSE)
{
GList *removed = NULL;
/* The Individual has lost its EmpathyContact */
removed = g_list_prepend (removed, individual);
g_signal_emit (self, signals[MEMBERS_CHANGED], 0, NULL, NULL, removed,
TP_CHANNEL_GROUP_CHANGE_REASON_NONE /* FIXME */);
g_list_free (removed);
remove_individual (self, individual);
}
else if (had_contact == FALSE && has_contact == TRUE)
{
GList *added = NULL;
/* The Individual has gained its first EmpathyContact */
add_individual (self, individual);
added = g_list_prepend (added, individual);
g_signal_emit (self, signals[MEMBERS_CHANGED], 0, NULL, added, NULL,
TP_CHANNEL_GROUP_CHANGE_REASON_NONE /* FIXME */);
g_list_free (added);
}
}
static void
aggregator_individuals_changed_cb (FolksIndividualAggregator *aggregator,
GeeMultiMap *changes,
EmpathyIndividualManager *self)
{
EmpathyIndividualManagerPriv *priv = GET_PRIV (self);
GeeIterator *iter;
GeeSet *removed;
GeeCollection *added;
GList *added_set = NULL, *added_filtered = NULL, *removed_list = NULL;
/* We're not interested in the relationships between the added and removed
* individuals, so just extract collections of them. Note that the added
* collection may contain duplicates, while the removed set won't. */
removed = gee_multi_map_get_keys (changes);
added = gee_multi_map_get_values (changes);
/* Handle the removals first, as one of the added Individuals might have the
* same ID as one of the removed Individuals (due to linking). */
iter = gee_iterable_iterator (GEE_ITERABLE (removed));
while (gee_iterator_next (iter))
{
FolksIndividual *ind = gee_iterator_get (iter);
if (ind == NULL)
continue;
g_signal_handlers_disconnect_by_func (ind,
individual_notify_personas_cb, self);
if (g_hash_table_lookup (priv->individuals,
folks_individual_get_id (ind)) != NULL)
{
remove_individual (self, ind);
removed_list = g_list_prepend (removed_list, ind);
}
g_clear_object (&ind);
}
g_clear_object (&iter);
/* Filter the individuals for ones which contain EmpathyContacts */
iter = gee_iterable_iterator (GEE_ITERABLE (added));
while (gee_iterator_next (iter))
{
FolksIndividual *ind = gee_iterator_get (iter);
/* Make sure we handle each added individual only once. */
if (ind == NULL || g_list_find (added_set, ind) != NULL)
continue;
added_set = g_list_prepend (added_set, ind);
g_signal_connect (ind, "notify::personas",
G_CALLBACK (individual_notify_personas_cb), self);
if (empathy_folks_individual_contains_contact (ind) == TRUE)
{
add_individual (self, ind);
added_filtered = g_list_prepend (added_filtered, ind);
}
g_clear_object (&ind);
}
g_clear_object (&iter);
g_list_free (added_set);
g_object_unref (added);
g_object_unref (removed);
/* Bail if we have no individuals left */
if (added_filtered == NULL && removed == NULL)
return;
added_filtered = g_list_reverse (added_filtered);
g_signal_emit (self, signals[MEMBERS_CHANGED], 0, NULL,
added_filtered, removed_list,
TP_CHANNEL_GROUP_CHANGE_REASON_NONE,
TRUE);
g_list_free (added_filtered);
g_list_free (removed_list);
}
