X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a6ceacf3b05651e2ae5a40d47c96bdd9fc4d1416..69aaa26fa5228c31e55086fa166479732a9cd1b7:/src/surf/network_ns3.cpp

diff --git a/src/surf/network_ns3.cpp b/src/surf/network_ns3.cpp
index 6e4a467270..1180f02b1f 100644
--- a/src/surf/network_ns3.cpp
+++ b/src/surf/network_ns3.cpp
@@ -185,7 +185,10 @@ static void clusterCreation_cb(simgrid::kernel::routing::ClusterCreationArgs con
 {
   ns3::NodeContainer Nodes;
 
-  for (int const& i : *cluster.radicals) {
+  xbt_assert(cluster.topology == simgrid::kernel::routing::ClusterTopology::FLAT,
+             "NS-3 is supported only by flat clusters. Do not use with other topologies");
+
+  for (int const& i : cluster.radicals) {
     // Create private link
     std::string host_id = cluster.prefix + std::to_string(i) + cluster.suffix;
     auto* src           = simgrid::s4u::Host::by_name(host_id)->get_netpoint();
@@ -229,6 +232,10 @@ static void routeCreation_cb(bool symmetrical, simgrid::kernel::routing::NetPoin
                              simgrid::kernel::routing::NetPoint* /*gw_dst*/,
                              std::vector<simgrid::kernel::resource::LinkImpl*> const& link_list)
 {
+  /* ignoring routes from StarZone, not supported */
+  if (not src || not dst)
+    return;
+
   if (link_list.size() == 1) {
     auto const* link = static_cast<simgrid::kernel::resource::LinkNS3*>(link_list[0]);
 
@@ -270,7 +277,7 @@ static simgrid::config::Flag<std::string>
 static simgrid::config::Flag<std::string> ns3_seed(
     "ns3/seed",
     "The random seed provided to ns-3. Either 'time' to seed with time(), blank to not set (default), or a number.", "",
-    [](std::string val) {
+    [](const std::string& val) {
       if (val.length() == 0)
         return;
       if (strcasecmp(val.c_str(), "time") == 0) {