-/*
- * network_interface.cpp
- *
- * Created on: Nov 29, 2013
- * Author: bedaride
- */
+/* Copyright (c) 2013-2019. 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 "network_interface.hpp"
-#include "simgrid/sg_config.h"
+#include "simgrid/s4u/Engine.hpp"
+#include "simgrid/sg_config.hpp"
+#include "src/kernel/resource/profile/Profile.hpp"
+#include "src/surf/surf_interface.hpp"
+#include "surf/surf.hpp"
#ifndef NETWORK_INTERFACE_CPP_
#define NETWORK_INTERFACE_CPP_
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
- "Logging specific to the SURF network module");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf, "Logging specific to the SURF network module");
-NetworkModelPtr surf_network_model = NULL;
+/*********
+ * Model *
+ *********/
-xbt_dynar_t NetworkModel::getRoute(RoutingEdgePtr src, RoutingEdgePtr dst)
-{
- xbt_dynar_t route = NULL;
- routing_platf->getRouteAndLatency(src, dst, &route, NULL);
- return route;
-}
+simgrid::kernel::resource::NetworkModel* surf_network_model = nullptr;
+
+namespace simgrid {
+namespace kernel {
+namespace resource {
-double NetworkModel::latencyFactor(double /*size*/) {
+/** @brief Command-line option 'network/TCP-gamma' -- see @ref options_model_network_gamma */
+simgrid::config::Flag<double> NetworkModel::cfg_tcp_gamma(
+ "network/TCP-gamma", {"network/TCP_gamma"},
+ "Size of the biggest TCP window (cat /proc/sys/net/ipv4/tcp_[rw]mem for recv/send window; "
+ "Use the last given value, which is the max window size)",
+ 4194304.0);
+
+/** @brief Command-line option 'network/crosstraffic' -- see @ref options_model_network_crosstraffic */
+simgrid::config::Flag<bool> NetworkModel::cfg_crosstraffic(
+ "network/crosstraffic",
+ "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)", "yes");
+
+NetworkModel::~NetworkModel() = default;
+
+double NetworkModel::get_latency_factor(double /*size*/)
+{
return sg_latency_factor;
}
-double NetworkModel::bandwidthFactor(double /*size*/) {
+double NetworkModel::get_bandwidth_factor(double /*size*/)
+{
return sg_bandwidth_factor;
}
-double NetworkModel::bandwidthConstraint(double rate, double /*bound*/, double /*size*/) {
+double NetworkModel::get_bandwidth_constraint(double rate, double /*bound*/, double /*size*/)
+{
return rate;
}
-NetworkLink::NetworkLink(NetworkModelPtr model, const char *name, xbt_dict_t props)
-: Resource(model, name, props)
-, p_latEvent(NULL)
-{}
+double NetworkModel::next_occuring_event_full(double now)
+{
+ double minRes = Model::next_occuring_event_full(now);
+
+ for (Action const& action : *get_started_action_set()) {
+ const NetworkAction& net_action = static_cast<const NetworkAction&>(action);
+ if (net_action.latency_ > 0)
+ minRes = (minRes < 0) ? net_action.latency_ : std::min(minRes, net_action.latency_);
+ }
+
+ XBT_DEBUG("Min of share resources %f", minRes);
+
+ return minRes;
+}
+
+/************
+ * Resource *
+ ************/
+
+LinkImpl::LinkImpl(NetworkModel* model, const std::string& name, lmm::Constraint* constraint)
+ : Resource(model, name, constraint), piface_(this)
+{
+
+ if (name != "__loopback__")
+ xbt_assert(not s4u::Link::by_name_or_null(name), "Link '%s' declared several times in the platform.", name.c_str());
+
+ latency_.scale = 1;
+ bandwidth_.scale = 1;
+
+ s4u::Engine::get_instance()->link_register(name, &piface_);
+ XBT_DEBUG("Create link '%s'", name.c_str());
+}
+
+/** @brief use destroy() instead of this destructor */
+LinkImpl::~LinkImpl()
+{
+ xbt_assert(currently_destroying_, "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 LinkImpl::destroy()
+{
+ if (not currently_destroying_) {
+ currently_destroying_ = true;
+ s4u::Link::on_destruction(this->piface_);
+ delete this;
+ }
+}
+
+bool LinkImpl::is_used()
+{
+ return get_model()->get_maxmin_system()->constraint_used(get_constraint());
+}
+
+double LinkImpl::get_latency()
+{
+ return latency_.peak * latency_.scale;
+}
+
+double LinkImpl::get_bandwidth()
+{
+ return bandwidth_.peak * bandwidth_.scale;
+}
+
+s4u::Link::SharingPolicy LinkImpl::get_sharing_policy()
+{
+ return get_constraint()->get_sharing_policy();
+}
+
+void LinkImpl::turn_on()
+{
+ if (not is_on()) {
+ Resource::turn_on();
+ s4u::Link::on_state_change(this->piface_);
+ }
+}
+
+void LinkImpl::turn_off()
+{
+ if (is_on()) {
+ Resource::turn_off();
+ s4u::Link::on_state_change(this->piface_);
-NetworkLink::NetworkLink(NetworkModelPtr model, const char *name, xbt_dict_t props,
- lmm_constraint_t constraint,
- tmgr_history_t history,
- tmgr_trace_t state_trace)
-: Resource(model, name, props, constraint),
- p_latEvent(NULL)
+ kernel::lmm::Variable* var = nullptr;
+ const kernel::lmm::Element* elem = nullptr;
+ double now = surf_get_clock();
+ while ((var = get_constraint()->get_variable(&elem))) {
+ Action* action = static_cast<Action*>(var->get_id());
+ if (action->get_state() == Action::State::INITED || action->get_state() == Action::State::STARTED) {
+ action->set_finish_time(now);
+ action->set_state(Action::State::FAILED);
+ }
+ }
+ }
+}
+
+void LinkImpl::on_bandwidth_change()
{
- if (state_trace)
- p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, static_cast<ResourcePtr>(this));
+ s4u::Link::on_bandwidth_change(this->piface_);
}
-bool NetworkLink::isUsed()
+void LinkImpl::set_bandwidth_profile(profile::Profile* profile)
{
- return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
+ xbt_assert(bandwidth_.event == nullptr, "Cannot set a second bandwidth profile to Link %s", get_cname());
+ bandwidth_.event = profile->schedule(&profile::future_evt_set, this);
}
-double NetworkLink::getLatency()
+void LinkImpl::set_latency_profile(profile::Profile* profile)
{
- return m_latCurrent;
+ xbt_assert(latency_.event == nullptr, "Cannot set a second latency profile to Link %s", get_cname());
+ latency_.event = profile->schedule(&profile::future_evt_set, this);
}
-double NetworkLink::getBandwidth()
+/**********
+ * Action *
+ **********/
+
+void NetworkAction::set_state(Action::State state)
{
- return p_power.peak * p_power.scale;
+ Action::State previous = get_state();
+ Action::set_state(state);
+ if (previous != state) // Trigger only if the state changed
+ s4u::Link::on_communication_state_change(*this, previous);
}
-bool NetworkLink::isShared()
+/** @brief returns a list of all Links that this action is using */
+std::list<LinkImpl*> NetworkAction::links() const
{
- return lmm_constraint_is_shared(getConstraint());
+ std::list<LinkImpl*> retlist;
+ int llen = get_variable()->get_number_of_constraint();
+
+ for (int i = 0; i < llen; i++) {
+ /* Beware of composite actions: ptasks put links and cpus together */
+ // extra pb: we cannot dynamic_cast from void*...
+ Resource* resource = get_variable()->get_constraint(i)->get_id();
+ LinkImpl* link = dynamic_cast<LinkImpl*>(resource);
+ if (link != nullptr)
+ retlist.push_back(link);
+ }
+
+ return retlist;
+}
+}
+} // namespace kernel
}
#endif /* NETWORK_INTERFACE_CPP_ */
