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lldp: ensure stable order of variants in LLDP neighbor list

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This commit is contained in:
Thomas Haller 2016-03-16 13:50:09 +01:00
parent 121e790bda
commit 191e5ae8a7
1 changed files with 24 additions and 14 deletions
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38
src/devices/nm-lldp-listener.c
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@ -202,15 +202,26 @@ lldp_neighbor_id_hash (gconstpointer ptr)
return hash;
}
static int
lldp_neighbor_id_cmp (gconstpointer a, gconstpointer b)
{
const LldpNeighbor *x = a, *y = b;
int c;
if (x->chassis_id_type != y->chassis_id_type)
return x->chassis_id_type < y->chassis_id_type ? -1 : 1;
if (x->port_id_type != y->port_id_type)
return x->port_id_type < y->port_id_type ? -1 : 1;
c = g_strcmp0 (x->chassis_id, y->chassis_id);
if (c == 0)
c = g_strcmp0 (x->port_id, y->port_id);
return c < 0 ? -1 : (c > 0 ? 1 : 0);
}
static gboolean
lldp_neighbor_id_equal (gconstpointer a, gconstpointer b)
{
const LldpNeighbor *x = a, *y = b;
return x->chassis_id_type == y->chassis_id_type &&
x->port_id_type == y->port_id_type &&
!g_strcmp0 (x->chassis_id, y->chassis_id) &&
!g_strcmp0 (x->port_id, y->port_id);
return lldp_neighbor_id_cmp (a, b) == 0;
}
static void
@ -745,10 +756,9 @@ nm_lldp_listener_is_running (NMLldpListener *self)
GVariant *
nm_lldp_listener_get_neighbors (NMLldpListener *self)
{
GVariantBuilder array_builder;
GHashTableIter iter;
NMLldpListenerPrivate *priv;
LldpNeighbor *neigh;
GVariantBuilder array_builder;
GList *neighbors, *iter;
g_return_val_if_fail (NM_IS_LLDP_LISTENER (self), FALSE);
@ -756,11 +766,11 @@ nm_lldp_listener_get_neighbors (NMLldpListener *self)
if (!priv->variant) {
g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("aa{sv}"));
g_hash_table_iter_init (&iter, priv->lldp_neighbors);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &neigh))
g_variant_builder_add_value (&array_builder, lldp_neighbor_to_variant (neigh));
neighbors = g_hash_table_get_keys (priv->lldp_neighbors);
neighbors = g_list_sort (neighbors, lldp_neighbor_id_cmp);
for (iter = neighbors; iter; iter = iter->next)
g_variant_builder_add_value (&array_builder, lldp_neighbor_to_variant (iter->data));
g_list_free (neighbors);
priv->variant = g_variant_ref_sink (g_variant_builder_end (&array_builder));
}
return priv->variant;