Display errno on error.

[simgrid.git] / src / surf / network_cm02.cpp

diff --git a/src/surf/network_cm02.cpp b/src/surf/network_cm02.cpp
index 72d1a9a..a85a3d5 100644 (file)
--- a/src/surf/network_cm02.cpp
+++ b/src/surf/network_cm02.cpp
@@ -34,11 +34,9 @@ double sg_weight_S_parameter = 0.0;     /* default value; can be set by model or
 /*  } */
 void surf_network_model_init_LegrandVelho()
 {
-  if (surf_network_model)
-    return;
+  xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice");
 
   surf_network_model = new simgrid::kernel::resource::NetworkCm02Model();
-  all_existing_models->push_back(surf_network_model);
 
   simgrid::config::set_default<double>("network/latency-factor", 13.01);
   simgrid::config::set_default<double>("network/bandwidth-factor", 0.97);
@@ -58,15 +56,13 @@ void surf_network_model_init_LegrandVelho()
 /* } */
 void surf_network_model_init_CM02()
 {
-  if (surf_network_model)
-    return;
+  xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice");
 
   simgrid::config::set_default<double>("network/latency-factor", 1.0);
   simgrid::config::set_default<double>("network/bandwidth-factor", 1.0);
   simgrid::config::set_default<double>("network/weight-S", 0.0);
 
   surf_network_model = new simgrid::kernel::resource::NetworkCm02Model();
-  all_existing_models->push_back(surf_network_model);
 }
 
 /***************************************************************************/
@@ -81,8 +77,7 @@ void surf_network_model_init_CM02()
 /*  }                                                                      */
 void surf_network_model_init_Reno()
 {
-  if (surf_network_model)
-    return;
+  xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice");
 
   namespace lmm = simgrid::kernel::lmm;
   lmm::Lagrange::set_default_protocol_function(lmm::func_reno_f, lmm::func_reno_fp, lmm::func_reno_fpi);
@@ -92,14 +87,12 @@ void surf_network_model_init_Reno()
   simgrid::config::set_default<double>("network/weight-S", 20537);
 
   surf_network_model = new simgrid::kernel::resource::NetworkCm02Model(&simgrid::kernel::lmm::make_new_lagrange_system);
-  all_existing_models->push_back(surf_network_model);
 }
 
 
 void surf_network_model_init_Reno2()
 {
-  if (surf_network_model)
-    return;
+  xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice");
 
   namespace lmm = simgrid::kernel::lmm;
   lmm::Lagrange::set_default_protocol_function(lmm::func_reno2_f, lmm::func_reno2_fp, lmm::func_reno2_fpi);
@@ -109,13 +102,11 @@ void surf_network_model_init_Reno2()
   simgrid::config::set_default<double>("network/weight-S", 20537);
 
   surf_network_model = new simgrid::kernel::resource::NetworkCm02Model(&simgrid::kernel::lmm::make_new_lagrange_system);
-  all_existing_models->push_back(surf_network_model);
 }
 
 void surf_network_model_init_Vegas()
 {
-  if (surf_network_model)
-    return;
+  xbt_assert(surf_network_model == nullptr, "Cannot set the network model twice");
 
   namespace lmm = simgrid::kernel::lmm;
   lmm::Lagrange::set_default_protocol_function(lmm::func_vegas_f, lmm::func_vegas_fp, lmm::func_vegas_fpi);
@@ -125,7 +116,6 @@ void surf_network_model_init_Vegas()
   simgrid::config::set_default<double>("network/weight-S", 20537);
 
   surf_network_model = new simgrid::kernel::resource::NetworkCm02Model(&simgrid::kernel::lmm::make_new_lagrange_system);
-  all_existing_models->push_back(surf_network_model);
 }
 
 namespace simgrid {
@@ -136,6 +126,8 @@ NetworkCm02Model::NetworkCm02Model(kernel::lmm::System* (*make_new_lmm_system)(b
     : NetworkModel(simgrid::config::get_value<std::string>("network/optim") == "Full" ? Model::UpdateAlgo::FULL
                                                                                       : Model::UpdateAlgo::LAZY)
 {
+  all_existing_models.push_back(this);
+
   std::string optim = simgrid::config::get_value<std::string>("network/optim");
   bool select       = simgrid::config::get_value<bool>("network/maxmin-selective-update");