+simgrid::surf::NetworkModel *surf_network_model = nullptr;
+
+namespace simgrid {
+ namespace surf {
+
+ NetworkModel::~NetworkModel()
+ {
+ lmm_system_free(maxminSystem_);
+ xbt_heap_free(actionHeap_);
+ delete modifiedSet_;
+ }
+
+ double NetworkModel::latencyFactor(double /*size*/) {
+ return sg_latency_factor;
+ }
+
+ double NetworkModel::bandwidthFactor(double /*size*/) {
+ return sg_bandwidth_factor;
+ }
+
+ double NetworkModel::bandwidthConstraint(double rate, double /*bound*/, double /*size*/) {
+ return rate;
+ }
+
+ double NetworkModel::nextOccuringEventFull(double now)
+ {
+ double minRes = Model::nextOccuringEventFull(now);
+
+ for(auto it(getRunningActionSet()->begin()), itend(getRunningActionSet()->end()); it != itend ; it++) {
+ NetworkAction *action = static_cast<NetworkAction*>(&*it);
+ if (action->latency_ > 0)
+ minRes = (minRes < 0) ? action->latency_ : std::min(minRes, action->latency_);
+ }
+
+ XBT_DEBUG("Min of share resources %f", minRes);
+
+ return minRes;
+ }
+
+ /************
+ * Resource *
+ ************/
+
+ Link::Link(simgrid::surf::NetworkModel* model, const char* name, lmm_constraint_t constraint)
+ : Resource(model, name, constraint)
+ {
+ if (strcmp(name,"__loopback__"))
+ xbt_assert(!Link::byName(name), "Link '%s' declared several times in the platform.", name);
+
+ latency_.scale = 1;
+ bandwidth_.scale = 1;
+
+ links->insert({name, this});
+ XBT_DEBUG("Create link '%s'",name);
+
+ }
+
+ /** @brief use destroy() instead of this destructor */
+ Link::~Link() {
+ xbt_assert(currentlyDestroying_, "Don't delete Links directly. Call destroy() instead.");
+ }
+ /** @brief Fire the required callbacks and destroy the object
+ *
+ * Don't delete directly a Link, call l->destroy() instead.
+ */
+ void Link::destroy()
+ {
+ if (!currentlyDestroying_) {
+ currentlyDestroying_ = true;
+ onDestruction(this);
+ delete this;
+ }
+ }
+
+ bool Link::isUsed()
+ {
+ return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
+ }
+
+ double Link::latency()
+ {
+ return latency_.peak * latency_.scale;
+ }
+
+ double Link::bandwidth()
+ {
+ return bandwidth_.peak * bandwidth_.scale;
+ }
+
+ int Link::sharingPolicy()
+ {
+ return lmm_constraint_sharing_policy(getConstraint());
+ }
+
+ void Link::turnOn(){
+ if (isOff()) {
+ Resource::turnOn();
+ onStateChange(this);
+ }
+ }
+ void Link::turnOff(){
+ if (isOn()) {
+ Resource::turnOff();
+ onStateChange(this);
+ }
+ }
+ void Link::setStateTrace(tmgr_trace_t trace) {
+ xbt_assert(stateEvent_ == nullptr, "Cannot set a second state trace to Link %s", getName());
+ stateEvent_ = future_evt_set->add_trace(trace, 0.0, this);
+ }
+ void Link::setBandwidthTrace(tmgr_trace_t trace)
+ {
+ xbt_assert(bandwidth_.event == nullptr, "Cannot set a second bandwidth trace to Link %s", getName());
+ bandwidth_.event = future_evt_set->add_trace(trace, 0.0, this);
+ }
+ void Link::setLatencyTrace(tmgr_trace_t trace)
+ {
+ xbt_assert(latency_.event == nullptr, "Cannot set a second latency trace to Link %s", getName());
+ latency_.event = future_evt_set->add_trace(trace, 0.0, this);
+ }
+
+
+ /**********
+ * Action *
+ **********/
+
+ void NetworkAction::setState(Action::State state){
+ Action::State old = getState();
+ Action::setState(state);
+ networkActionStateChangedCallbacks(this, old, state);
+ }