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rename the datacontainers allowing the trace:connect tag
[simgrid.git] / src / surf / network_cm02.cpp
index 9479fd3..28e3616 100644 (file)
@@ -1,6 +1,15 @@
+/* Copyright (c) 2013-2015. The SimGrid Team.
+ * All rights reserved.                                                     */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include <algorithm>
+
 #include "network_cm02.hpp"
 #include "maxmin_private.hpp"
 #include "simgrid/sg_config.h"
+#include "src/surf/platform.hpp"
 
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
 
@@ -16,96 +25,13 @@ int sg_network_crosstraffic = 0;
  * CallBacks *
  *************/
 
-static void net_parse_link_init(sg_platf_link_cbarg_t link){
-  if (link->policy == SURF_LINK_FULLDUPLEX) {
-    char *link_id;
-    link_id = bprintf("%s_UP", link->id);
-    surf_network_model->createResource(link_id,
-                      link->bandwidth,
-                      link->bandwidth_trace,
-                      link->latency,
-                      link->latency_trace,
-                      link->state,
-                      link->state_trace, link->policy, link->properties);
-    xbt_free(link_id);
-    link_id = bprintf("%s_DOWN", link->id);
-    surf_network_model->createResource(link_id,
-                      link->bandwidth,
-                      link->bandwidth_trace,
-                      link->latency,
-                      link->latency_trace,
-                      link->state,
-                      link->state_trace, link->policy, link->properties);
-    xbt_free(link_id);
-  } else {
-       surf_network_model->createResource(link->id,
-                      link->bandwidth,
-                      link->bandwidth_trace,
-                      link->latency,
-                      link->latency_trace,
-                      link->state,
-                      link->state_trace, link->policy, link->properties);
-  }
-}
-
-static void net_add_traces(void){
-  xbt_dict_cursor_t cursor = NULL;
-  char *trace_name, *elm;
-
-  static int called = 0;
-  if (called)
-    return;
-  called = 1;
-
-  /* connect all traces relative to network */
-  xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
-    tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
-    NetworkCm02LinkPtr link = static_cast<NetworkCm02LinkPtr>(
-                                   xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
-
-    xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
-               trace_name, elm);
-    xbt_assert(trace,
-               "Cannot connect trace %s to link %s: trace undefined",
-               trace_name, elm);
-
-    link->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(link));
-  }
-
-  xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
-    tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
-    NetworkCm02LinkPtr link = static_cast<NetworkCm02LinkPtr>(
-                                xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
-
-    xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
-               trace_name, elm);
-    xbt_assert(trace,
-               "Cannot connect trace %s to link %s: trace undefined",
-               trace_name, elm);
-
-    link->p_power.event = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(link));
-  }
-
-  xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
-    tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
-    NetworkCm02LinkPtr link = static_cast<NetworkCm02LinkPtr>(
-                                   xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL));
-
-    xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
-               trace_name, elm);
-    xbt_assert(trace,
-               "Cannot connect trace %s to link %s: trace undefined",
-               trace_name, elm);
-
-    link->p_latEvent = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(link));
-  }
-}
-
 void net_define_callbacks(void)
 {
   /* Figuring out the network links */
-  sg_platf_link_add_cb(net_parse_link_init);
-  sg_platf_postparse_add_cb(net_add_traces);
+  simgrid::surf::on_link.connect(netlink_parse_init);
+  simgrid::surf::on_postparse.connect([]() {
+    surf_network_model->addTraces();
+  });
 }
 
 /*********
@@ -131,10 +57,10 @@ void surf_network_model_init_LegrandVelho(void)
   if (surf_network_model)
     return;
 
-  surf_network_model = new NetworkCm02Model();
+  surf_network_model = new simgrid::surf::NetworkCm02Model();
   net_define_callbacks();
-  ModelPtr model = static_cast<ModelPtr>(surf_network_model);
-  xbt_dynar_push(model_list, &model);
+  simgrid::surf::Model *model = surf_network_model;
+  xbt_dynar_push(all_existing_models, &model);
 
   xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor",
                             13.01);
@@ -160,14 +86,12 @@ void surf_network_model_init_CM02(void)
   if (surf_network_model)
     return;
 
-  surf_network_model = new NetworkCm02Model();
+  surf_network_model = new simgrid::surf::NetworkCm02Model();
+  xbt_dynar_push(all_existing_models, &surf_network_model);
   net_define_callbacks();
-  ModelPtr model = static_cast<ModelPtr>(surf_network_model);
-  xbt_dynar_push(model_list, &model);
 
   xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 1.0);
-  xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
-                            1.0);
+  xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor", 1.0);
   xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 0.0);
 }
 
@@ -186,17 +110,14 @@ void surf_network_model_init_Reno(void)
   if (surf_network_model)
     return;
 
-  surf_network_model = new NetworkCm02Model();
+  surf_network_model = new simgrid::surf::NetworkCm02Model();
+  xbt_dynar_push(all_existing_models, &surf_network_model);
   net_define_callbacks();
-  ModelPtr model = static_cast<ModelPtr>(surf_network_model);
-  xbt_dynar_push(model_list, &model);
-  lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
-                                    func_reno_fpi);
+  lmm_set_default_protocol_function(func_reno_f, func_reno_fp, func_reno_fpi);
   surf_network_model->f_networkSolve = lagrange_solve;
 
   xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
-  xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
-                            0.92);
+  xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor", 0.92);
   xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
 }
 
@@ -206,19 +127,15 @@ void surf_network_model_init_Reno2(void)
   if (surf_network_model)
     return;
 
-  surf_network_model = new NetworkCm02Model();
+  surf_network_model = new simgrid::surf::NetworkCm02Model();
+  xbt_dynar_push(all_existing_models, &surf_network_model);
   net_define_callbacks();
-  ModelPtr model = static_cast<ModelPtr>(surf_network_model);
-  xbt_dynar_push(model_list, &model);
-  lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
-                                    func_reno2_fpi);
+  lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp, func_reno2_fpi);
   surf_network_model->f_networkSolve = lagrange_solve;
 
   xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
-  xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
-                            0.92);
-  xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S_parameter",
-                            8775);
+  xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor", 0.92);
+  xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
 }
 
 void surf_network_model_init_Vegas(void)
@@ -226,21 +143,22 @@ void surf_network_model_init_Vegas(void)
   if (surf_network_model)
     return;
 
-  surf_network_model = new NetworkCm02Model();
+  surf_network_model = new simgrid::surf::NetworkCm02Model();
+  xbt_dynar_push(all_existing_models, &surf_network_model);
   net_define_callbacks();
-  ModelPtr model = static_cast<ModelPtr>(surf_network_model);
-  xbt_dynar_push(model_list, &model);
-  lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
-                                    func_vegas_fpi);
+  lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp, func_vegas_fpi);
   surf_network_model->f_networkSolve = lagrange_solve;
 
   xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
-  xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
-                            0.92);
+  xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor", 0.92);
   xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
 }
 
-void NetworkCm02Model::initialize()
+namespace simgrid {
+namespace surf {
+
+NetworkCm02Model::NetworkCm02Model()
+       :NetworkModel()
 {
   char *optim = xbt_cfg_get_string(_sg_cfg_set, "network/optim");
   int select =
@@ -264,11 +182,10 @@ void NetworkCm02Model::initialize()
   if (!p_maxminSystem)
        p_maxminSystem = lmm_system_new(m_selectiveUpdate);
 
-  const char* lb_name = "__loopback__";
-  routing_model_create(static_cast<ResourcePtr>(createResource(lb_name,
-                                                  498000000, NULL, 0.000015, NULL,
-                                                  SURF_RESOURCE_ON, NULL,
-                                                  SURF_LINK_FATPIPE, NULL)));
+  routing_model_create(createLink("__loopback__",
+                                     498000000, NULL, 0.000015, NULL,
+                                     1 /*SURF_RESOURCE_ON*/, NULL,
+                                     SURF_LINK_FATPIPE, NULL));
 
   if (p_updateMechanism == UM_LAZY) {
        p_actionHeap = xbt_heap_new(8, NULL);
@@ -276,43 +193,35 @@ void NetworkCm02Model::initialize()
        p_modifiedSet = new ActionLmmList();
        p_maxminSystem->keep_track = p_modifiedSet;
   }
-
-  m_haveGap = false;
 }
 
-NetworkLinkPtr NetworkCm02Model::createResource(const char *name,
+Link* NetworkCm02Model::createLink(const char *name,
                                  double bw_initial,
                                  tmgr_trace_t bw_trace,
                                  double lat_initial,
                                  tmgr_trace_t lat_trace,
-                                 e_surf_resource_state_t state_initial,
+                                 int initiallyOn,
                                  tmgr_trace_t state_trace,
                                  e_surf_link_sharing_policy_t policy,
                                  xbt_dict_t properties)
 {
-  xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
-             "Link '%s' declared several times in the platform file.",
+  xbt_assert(NULL == Link::byName(name),
+             "Link '%s' declared several times in the platform",
              name);
 
-  NetworkCm02LinkPtr nw_link =
-                 new NetworkCm02Link(this, name, properties, p_maxminSystem, sg_bandwidth_factor * bw_initial, history,
-                                                state_initial, state_trace, bw_initial, bw_trace, lat_initial, lat_trace, policy);
-
-
-  xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, static_cast<ResourcePtr>(nw_link));
-  XBT_DEBUG("Create link '%s'",name);
-
-  return nw_link;
+  Link* link = new NetworkCm02Link(this, name, properties, p_maxminSystem, sg_bandwidth_factor * bw_initial, future_evt_set,
+                                            initiallyOn, state_trace, bw_initial, bw_trace, lat_initial, lat_trace, policy);
+  Link::onCreation(link);
+  return link;
 }
 
 void NetworkCm02Model::updateActionsStateLazy(double now, double /*delta*/)
 {
-  NetworkCm02ActionPtr action;
+  NetworkCm02Action *action;
   while ((xbt_heap_size(p_actionHeap) > 0)
-         && (double_equals(xbt_heap_maxkey(p_actionHeap), now))) {
-    action = (NetworkCm02ActionPtr) xbt_heap_pop(p_actionHeap);
+         && (double_equals(xbt_heap_maxkey(p_actionHeap), now, sg_surf_precision))) {
+    action = static_cast<NetworkCm02Action*> (xbt_heap_pop(p_actionHeap));
     XBT_DEBUG("Something happened to action %p", action);
-#ifdef HAVE_TRACING
     if (TRACE_is_enabled()) {
       int n = lmm_get_number_of_cnst_from_var(p_maxminSystem, action->getVariable());
       int i;
@@ -320,7 +229,7 @@ void NetworkCm02Model::updateActionsStateLazy(double now, double /*delta*/)
         lmm_constraint_t constraint = lmm_get_cnst_from_var(p_maxminSystem,
                                                             action->getVariable(),
                                                             i);
-        NetworkCm02LinkPtr link = static_cast<NetworkCm02LinkPtr>(lmm_constraint_id(constraint));
+        NetworkCm02Link *link = static_cast<NetworkCm02Link*>(lmm_constraint_id(constraint));
         TRACE_surf_link_set_utilization(link->getName(),
                                         action->getCategory(),
                                         (lmm_variable_getvalue(action->getVariable())*
@@ -331,7 +240,6 @@ void NetworkCm02Model::updateActionsStateLazy(double now, double /*delta*/)
                                         now - action->getLastUpdate());
       }
     }
-#endif
 
     // if I am wearing a latency hat
     if (action->getHat() == LATENCY) {
@@ -357,31 +265,102 @@ void NetworkCm02Model::updateActionsStateLazy(double now, double /*delta*/)
   return;
 }
 
-ActionPtr NetworkCm02Model::communicate(RoutingEdgePtr src, RoutingEdgePtr dst,
+
+void NetworkCm02Model::updateActionsStateFull(double now, double delta)
+{
+  NetworkCm02Action *action;
+  ActionList *running_actions = getRunningActionSet();
+
+  for(ActionList::iterator it(running_actions->begin()), itNext=it, itend(running_actions->end())
+     ; it != itend ; it=itNext) {
+       ++itNext;
+
+    action = static_cast<NetworkCm02Action*> (&*it);
+    XBT_DEBUG("Something happened to action %p", action);
+      double deltap = delta;
+      if (action->m_latency > 0) {
+        if (action->m_latency > deltap) {
+          double_update(&(action->m_latency), deltap, sg_surf_precision);
+          deltap = 0.0;
+        } else {
+          double_update(&(deltap), action->m_latency, sg_surf_precision);
+          action->m_latency = 0.0;
+        }
+        if (action->m_latency == 0.0 && !(action->isSuspended()))
+          lmm_update_variable_weight(p_maxminSystem, action->getVariable(),
+              action->m_weight);
+      }
+      if (TRACE_is_enabled()) {
+        int n = lmm_get_number_of_cnst_from_var(p_maxminSystem, action->getVariable());
+        int i;
+        for (i = 0; i < n; i++){
+          lmm_constraint_t constraint = lmm_get_cnst_from_var(p_maxminSystem,
+                                                            action->getVariable(),
+                                                            i);
+          NetworkCm02Link* link = static_cast<NetworkCm02Link*>(lmm_constraint_id(constraint));
+          TRACE_surf_link_set_utilization(link->getName(),
+                                        action->getCategory(),
+                                        (lmm_variable_getvalue(action->getVariable())*
+                                            lmm_get_cnst_weight_from_var(p_maxminSystem,
+                                                action->getVariable(),
+                                                i)),
+                                        action->getLastUpdate(),
+                                        now - action->getLastUpdate());
+        }
+      }
+      if (!lmm_get_number_of_cnst_from_var
+          (p_maxminSystem, action->getVariable())) {
+        /* There is actually no link used, hence an infinite bandwidth.
+         * This happens often when using models like vivaldi.
+         * In such case, just make sure that the action completes immediately.
+         */
+        action->updateRemains(action->getRemains());
+      }
+    action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
+                  
+    if (action->getMaxDuration() != NO_MAX_DURATION)
+      action->updateMaxDuration(delta);
+      
+    if ((action->getRemains() <= 0) &&
+        (lmm_get_variable_weight(action->getVariable()) > 0)) {
+      action->finish();
+      action->setState(SURF_ACTION_DONE);
+      action->gapRemove();
+    } else if (((action->getMaxDuration() != NO_MAX_DURATION)
+        && (action->getMaxDuration() <= 0))) {
+      action->finish();
+      action->setState(SURF_ACTION_DONE);
+      action->gapRemove();
+    }
+  }
+  return;
+}
+
+Action *NetworkCm02Model::communicate(NetCard *src, NetCard *dst,
                                                 double size, double rate)
 {
   unsigned int i;
   void *_link;
-  NetworkCm02LinkPtr link;
+  NetworkCm02Link *link;
   int failed = 0;
-  NetworkCm02ActionPtr action = NULL;
+  NetworkCm02Action *action = NULL;
   double bandwidth_bound;
   double latency = 0.0;
   xbt_dynar_t back_route = NULL;
   int constraints_per_variable = 0;
 
-  xbt_dynar_t route = xbt_dynar_new(sizeof(RoutingEdgePtr), NULL);
+  xbt_dynar_t route = xbt_dynar_new(sizeof(NetCard*), NULL);
 
-  XBT_IN("(%s,%s,%g,%g)", src->p_name, dst->p_name, size, rate);
+  XBT_IN("(%s,%s,%g,%g)", src->getName(), dst->getName(), size, rate);
 
   routing_platf->getRouteAndLatency(src, dst, &route, &latency);
   xbt_assert(!xbt_dynar_is_empty(route) || latency,
-             "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
-             src->p_name, dst->p_name);
+             "You're trying to send data from %s to %s but there is no connecting path between these two hosts.",
+             src->getName(), dst->getName());
 
   xbt_dynar_foreach(route, i, _link) {
-       link = static_cast<NetworkCm02LinkPtr>(_link);
-    if (link->getState() == SURF_RESOURCE_OFF) {
+       link = static_cast<NetworkCm02Link*>(_link);
+    if (link->isOff()) {
       failed = 1;
       break;
     }
@@ -389,8 +368,8 @@ ActionPtr NetworkCm02Model::communicate(RoutingEdgePtr src, RoutingEdgePtr dst,
   if (sg_network_crosstraffic == 1) {
          routing_platf->getRouteAndLatency(dst, src, &back_route, NULL);
     xbt_dynar_foreach(back_route, i, _link) {
-      link = static_cast<NetworkCm02LinkPtr>(_link);
-      if (link->getState() == SURF_RESOURCE_OFF) {
+      link = static_cast<NetworkCm02Link*>(_link);
+      if (link->isOff()) {
         failed = 1;
         break;
       }
@@ -413,15 +392,15 @@ ActionPtr NetworkCm02Model::communicate(RoutingEdgePtr src, RoutingEdgePtr dst,
   bandwidth_bound = -1.0;
   if (sg_weight_S_parameter > 0) {
     xbt_dynar_foreach(route, i, _link) {
-      link = static_cast<NetworkCm02LinkPtr>(_link);
+      link = static_cast<NetworkCm02Link*>(_link);
       action->m_weight += sg_weight_S_parameter / link->getBandwidth();
     }
   }
   xbt_dynar_foreach(route, i, _link) {
-       link = static_cast<NetworkCm02LinkPtr>(_link);
-    double bb = bandwidthFactor(size) * link->getBandwidth(); //(link->p_power.peak * link->p_power.scale);
+       link = static_cast<NetworkCm02Link*>(_link);
+    double bb = bandwidthFactor(size) * link->getBandwidth();
     bandwidth_bound =
-        (bandwidth_bound < 0.0) ? bb : min(bandwidth_bound, bb);
+        (bandwidth_bound < 0.0) ? bb : std::min(bandwidth_bound, bb);
   }
 
   action->m_latCurrent = action->m_latency;
@@ -431,10 +410,10 @@ ActionPtr NetworkCm02Model::communicate(RoutingEdgePtr src, RoutingEdgePtr dst,
     xbt_assert(!xbt_dynar_is_empty(route),
                "Using a model with a gap (e.g., SMPI) with a platform without links (e.g. vivaldi)!!!");
 
-    link = *static_cast<NetworkCm02LinkPtr *>(xbt_dynar_get_ptr(route, 0));
+    link = *static_cast<NetworkCm02Link **>(xbt_dynar_get_ptr(route, 0));
     gapAppend(size, link, action);
     XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
-              action, src->p_name, dst->p_name, action->m_senderGap,
+              action, src->getName(), dst->getName(), action->m_senderGap,
               action->m_latency);
   }
 
@@ -443,7 +422,7 @@ ActionPtr NetworkCm02Model::communicate(RoutingEdgePtr src, RoutingEdgePtr dst,
     constraints_per_variable += xbt_dynar_length(back_route);
 
   if (action->m_latency > 0) {
-    action->p_variable = lmm_variable_new(p_maxminSystem, static_cast<ActionPtr>(action), 0.0, -1.0,
+    action->p_variable = lmm_variable_new(p_maxminSystem, action, 0.0, -1.0,
                          constraints_per_variable);
     if (p_updateMechanism == UM_LAZY) {
       // add to the heap the event when the latency is payed
@@ -452,23 +431,23 @@ ActionPtr NetworkCm02Model::communicate(RoutingEdgePtr src, RoutingEdgePtr dst,
       action->heapInsert(p_actionHeap, action->m_latency + action->m_lastUpdate, xbt_dynar_is_empty(route) ? NORMAL : LATENCY);
     }
   } else
-    action->p_variable = lmm_variable_new(p_maxminSystem, static_cast<ActionPtr>(action), 1.0, -1.0, constraints_per_variable);
+    action->p_variable = lmm_variable_new(p_maxminSystem, action, 1.0, -1.0, constraints_per_variable);
 
   if (action->m_rate < 0) {
     lmm_update_variable_bound(p_maxminSystem, action->getVariable(), (action->m_latCurrent > 0) ? sg_tcp_gamma / (2.0 * action->m_latCurrent) : -1.0);
   } else {
-    lmm_update_variable_bound(p_maxminSystem, action->getVariable(), (action->m_latCurrent > 0) ? min(action->m_rate, sg_tcp_gamma / (2.0 * action->m_latCurrent)) : action->m_rate);
+    lmm_update_variable_bound(p_maxminSystem, action->getVariable(), (action->m_latCurrent > 0) ? std::min(action->m_rate, sg_tcp_gamma / (2.0 * action->m_latCurrent)) : action->m_rate);
   }
 
   xbt_dynar_foreach(route, i, _link) {
-       link = static_cast<NetworkCm02LinkPtr>(_link);
+       link = static_cast<NetworkCm02Link*>(_link);
     lmm_expand(p_maxminSystem, link->getConstraint(), action->getVariable(), 1.0);
   }
 
   if (sg_network_crosstraffic == 1) {
     XBT_DEBUG("Fullduplex active adding backward flow using 5%%");
     xbt_dynar_foreach(back_route, i, _link) {
-      link = static_cast<NetworkCm02LinkPtr>(_link);
+      link = static_cast<NetworkCm02Link*>(_link);
       lmm_expand(p_maxminSystem, link->getConstraint(), action->getVariable(), .05);
     }
   }
@@ -476,39 +455,91 @@ ActionPtr NetworkCm02Model::communicate(RoutingEdgePtr src, RoutingEdgePtr dst,
   xbt_dynar_free(&route);
   XBT_OUT();
 
+  networkCommunicateCallbacks(action, src, dst, size, rate);
   return action;
 }
 
+void NetworkCm02Model::addTraces(){
+  xbt_dict_cursor_t cursor = NULL;
+  char *trace_name, *elm;
 
+  static int called = 0;
+  if (called)
+    return;
+  called = 1;
+
+  /* connect all traces relative to network */
+  xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
+    tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
+    NetworkCm02Link *link = static_cast<NetworkCm02Link*>( Link::byName(elm) );
+
+    xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
+               trace_name, elm);
+    xbt_assert(trace,
+               "Cannot connect trace %s to link %s: trace undefined",
+               trace_name, elm);
+
+    link->p_stateEvent = future_evt_set->add_trace(trace, 0.0, link);
+  }
+
+  xbt_dict_foreach(trace_connect_list_link_bw, cursor, trace_name, elm) {
+    tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
+    NetworkCm02Link *link = static_cast<NetworkCm02Link*>( Link::byName(elm) );
+
+    xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
+               trace_name, elm);
+    xbt_assert(trace,
+               "Cannot connect trace %s to link %s: trace undefined",
+               trace_name, elm);
+
+    link->p_speed.event = future_evt_set->add_trace(trace, 0.0, link);
+  }
+
+  xbt_dict_foreach(trace_connect_list_link_lat, cursor, trace_name, elm) {
+    tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
+    NetworkCm02Link *link = static_cast<NetworkCm02Link*>(Link::byName(elm));;
+
+    xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
+               trace_name, elm);
+    xbt_assert(trace,
+               "Cannot connect trace %s to link %s: trace undefined",
+               trace_name, elm);
+
+    link->p_latEvent = future_evt_set->add_trace(trace, 0.0, link);
+  }
+}
 
 /************
  * Resource *
  ************/
-NetworkCm02Link::NetworkCm02Link(NetworkCm02ModelPtr model, const char *name, xbt_dict_t props,
+NetworkCm02Link::NetworkCm02Link(NetworkCm02Model *model, const char *name, xbt_dict_t props,
                                   lmm_system_t system,
                                   double constraint_value,
-                                  tmgr_history_t history,
-                                  e_surf_resource_state_t state_init,
+                                  sg_future_evt_set_t fes,
+                                  int initiallyOn,
                                   tmgr_trace_t state_trace,
                                   double metric_peak,
                                   tmgr_trace_t metric_trace,
                                   double lat_initial,
                                   tmgr_trace_t lat_trace,
                                   e_surf_link_sharing_policy_t policy)
-: NetworkLink(model, name, props, lmm_constraint_new(system, this, constraint_value), history, state_trace)
+: Link(model, name, props, lmm_constraint_new(system, this, constraint_value), fes, state_trace)
 {
-  m_stateCurrent = state_init;
+  if (initiallyOn)
+    turnOn();
+  else
+    turnOff();
 
-  p_power.scale = 1.0;
-  p_power.peak = metric_peak;
+  p_speed.scale = 1.0;
+  p_speed.peak = metric_peak;
   if (metric_trace)
-    p_power.event = tmgr_history_add_trace(history, metric_trace, 0.0, 0, static_cast<ResourcePtr>(this));
+    p_speed.event = fes->add_trace(metric_trace, 0.0, this);
   else
-    p_power.event = NULL;
+    p_speed.event = NULL;
 
   m_latCurrent = lat_initial;
   if (lat_trace)
-       p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, static_cast<ResourcePtr>(this));
+       p_latEvent = fes->add_trace(lat_trace, 0.0, this);
 
   if (policy == SURF_LINK_FATPIPE)
        lmm_constraint_shared(getConstraint());
@@ -516,80 +547,27 @@ NetworkCm02Link::NetworkCm02Link(NetworkCm02ModelPtr model, const char *name, xb
 
 
 
-void NetworkCm02Link::updateState(tmgr_trace_event_t event_type,
+void NetworkCm02Link::updateState(tmgr_trace_iterator_t triggered,
                                       double value, double date)
 {
-  /*   printf("[" "%g" "] Asking to update network card \"%s\" with value " */
-  /*     "%g" " for event %p\n", surf_get_clock(), nw_link->name, */
-  /*     value, event_type); */
-
-  if (event_type == p_power.event) {
-    double delta =
-        sg_weight_S_parameter / value - sg_weight_S_parameter /
-        (p_power.peak * p_power.scale);
-    lmm_variable_t var = NULL;
-    lmm_element_t elem = NULL;
-    NetworkCm02ActionPtr action = NULL;
-
-    p_power.peak = value;
-    lmm_update_constraint_bound(getModel()->getMaxminSystem(),
-                                   getConstraint(),
-                                sg_bandwidth_factor *
-                                (p_power.peak * p_power.scale));
-#ifdef HAVE_TRACING
-    TRACE_surf_link_set_bandwidth(date, getName(), sg_bandwidth_factor * p_power.peak * p_power.scale);
-#endif
-    if (sg_weight_S_parameter > 0) {
-      while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), getConstraint(), &elem))) {
-        action = (NetworkCm02ActionPtr) lmm_variable_id(var);
-        action->m_weight += delta;
-        if (!action->isSuspended())
-          lmm_update_variable_weight(getModel()->getMaxminSystem(), action->getVariable(), action->m_weight);
-      }
-    }
-    if (tmgr_trace_event_free(event_type))
-      p_power.event = NULL;
-  } else if (event_type == p_latEvent) {
-    double delta = value - m_latCurrent;
-    lmm_variable_t var = NULL;
-    lmm_element_t elem = NULL;
-    NetworkCm02ActionPtr action = NULL;
-
-    m_latCurrent = value;
-    while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), getConstraint(), &elem))) {
-      action = (NetworkCm02ActionPtr) lmm_variable_id(var);
-      action->m_latCurrent += delta;
-      action->m_weight += delta;
-      if (action->m_rate < 0)
-        lmm_update_variable_bound(getModel()->getMaxminSystem(), action->getVariable(), sg_tcp_gamma / (2.0 * action->m_latCurrent));
-      else {
-        lmm_update_variable_bound(getModel()->getMaxminSystem(), action->getVariable(),
-                                  min(action->m_rate, sg_tcp_gamma / (2.0 * action->m_latCurrent)));
-
-        if (action->m_rate < sg_tcp_gamma / (2.0 * action->m_latCurrent)) {
-          XBT_INFO("Flow is limited BYBANDWIDTH");
-        } else {
-          XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
-                   action->m_latCurrent);
-        }
-      }
-      if (!action->isSuspended())
-        lmm_update_variable_weight(getModel()->getMaxminSystem(), action->getVariable(), action->m_weight);
 
-    }
-    if (tmgr_trace_event_free(event_type))
-      p_latEvent = NULL;
-  } else if (event_type == p_stateEvent) {
+  /* Find out which of my iterators was triggered, and react accordingly */
+  if (triggered == p_speed.event) {
+    updateBandwidth(value, date);
+    tmgr_trace_event_unref(&p_speed.event);
+  } else if (triggered == p_latEvent) {
+    updateLatency(value, date);
+    tmgr_trace_event_unref(&p_latEvent);
+  } else if (triggered == p_stateEvent) {
     if (value > 0)
-      m_stateCurrent = SURF_RESOURCE_ON;
+      turnOn();
     else {
-      lmm_constraint_t cnst = getConstraint();
       lmm_variable_t var = NULL;
       lmm_element_t elem = NULL;
 
-      m_stateCurrent = SURF_RESOURCE_OFF;
-      while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), cnst, &elem))) {
-        ActionPtr action = (ActionPtr) lmm_variable_id(var);
+      turnOff();
+      while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), getConstraint(), &elem))) {
+        Action *action = static_cast<Action*>( lmm_variable_id(var) );
 
         if (action->getState() == SURF_ACTION_RUNNING ||
             action->getState() == SURF_ACTION_READY) {
@@ -598,17 +576,71 @@ void NetworkCm02Link::updateState(tmgr_trace_event_t event_type,
         }
       }
     }
-    if (tmgr_trace_event_free(event_type))
-      p_stateEvent = NULL;
+    tmgr_trace_event_unref(&p_stateEvent);
   } else {
-    XBT_CRITICAL("Unknown event ! \n");
-    xbt_abort();
+    xbt_die("Unknown event!\n");
   }
 
   XBT_DEBUG
-      ("There were a resource state event, need to update actions related to the constraint (%p)",
+      ("There was a resource state event, need to update actions related to the constraint (%p)",
        getConstraint());
-  return;
+}
+
+void NetworkCm02Link::updateBandwidth(double value, double date){
+  double delta = sg_weight_S_parameter / value - sg_weight_S_parameter /
+                 (p_speed.peak * p_speed.scale);
+  lmm_variable_t var = NULL;
+  lmm_element_t elem = NULL;
+  lmm_element_t nextelem = NULL;
+  int numelem = 0;
+
+  NetworkCm02Action *action = NULL;
+
+  p_speed.peak = value;
+  lmm_update_constraint_bound(getModel()->getMaxminSystem(),
+                              getConstraint(),
+                              sg_bandwidth_factor *
+                              (p_speed.peak * p_speed.scale));
+  TRACE_surf_link_set_bandwidth(date, getName(), sg_bandwidth_factor * p_speed.peak * p_speed.scale);
+  if (sg_weight_S_parameter > 0) {
+    while ((var = lmm_get_var_from_cnst_safe(getModel()->getMaxminSystem(), getConstraint(), &elem, &nextelem, &numelem))) {
+      action = (NetworkCm02Action*) lmm_variable_id(var);
+      action->m_weight += delta;
+      if (!action->isSuspended())
+        lmm_update_variable_weight(getModel()->getMaxminSystem(), action->getVariable(), action->m_weight);
+    }
+  }
+}
+
+void NetworkCm02Link::updateLatency(double value, double date){
+  double delta = value - m_latCurrent;
+  lmm_variable_t var = NULL;
+  lmm_element_t elem = NULL;
+  lmm_element_t nextelem = NULL;
+  int numelem = 0;
+  NetworkCm02Action *action = NULL;
+
+  m_latCurrent = value;
+  while ((var = lmm_get_var_from_cnst_safe(getModel()->getMaxminSystem(), getConstraint(), &elem, &nextelem, &numelem))) {
+    action = (NetworkCm02Action*) lmm_variable_id(var);
+    action->m_latCurrent += delta;
+    action->m_weight += delta;
+    if (action->m_rate < 0)
+      lmm_update_variable_bound(getModel()->getMaxminSystem(), action->getVariable(), sg_tcp_gamma / (2.0 * action->m_latCurrent));
+    else {
+      lmm_update_variable_bound(getModel()->getMaxminSystem(), action->getVariable(),
+                                std::min(action->m_rate, sg_tcp_gamma / (2.0 * action->m_latCurrent)));
+
+      if (action->m_rate < sg_tcp_gamma / (2.0 * action->m_latCurrent)) {
+        XBT_INFO("Flow is limited BYBANDWIDTH");
+      } else {
+        XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
+                 action->m_latCurrent);
+      }
+    }
+    if (!action->isSuspended())
+      lmm_update_variable_weight(getModel()->getMaxminSystem(), action->getVariable(), action->m_weight);
+  }
 }
 
 /**********
@@ -624,14 +656,14 @@ void NetworkCm02Action::updateRemainingLazy(double now)
   delta = now - m_lastUpdate;
 
   if (m_remains > 0) {
-    XBT_DEBUG("Updating action(%p): remains was %lf, last_update was: %lf", this, m_remains, m_lastUpdate);
-    double_update(&(m_remains), m_lastValue * delta);
+    XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, m_remains, m_lastUpdate);
+    double_update(&(m_remains), m_lastValue * delta, sg_maxmin_precision*sg_surf_precision);
 
-    XBT_DEBUG("Updating action(%p): remains is now %lf", this, m_remains);
+    XBT_DEBUG("Updating action(%p): remains is now %f", this, m_remains);
   }
 
   if (m_maxDuration != NO_MAX_DURATION)
-    double_update(&m_maxDuration, delta);
+    double_update(&m_maxDuration, delta, sg_surf_precision);
 
   if (m_remains <= 0 &&
       (lmm_get_variable_weight(getVariable()) > 0)) {
@@ -649,8 +681,6 @@ void NetworkCm02Action::updateRemainingLazy(double now)
   m_lastUpdate = now;
   m_lastValue = lmm_variable_getvalue(getVariable());
 }
-void NetworkCm02Action::recycle()
-{
-  return;
-}
 
+}
+}