-/* Copyright (c) 2013-2017. The SimGrid Team.
- * All rights reserved. */
+/* 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 <algorithm>
-
#include "network_interface.hpp"
-#include "simgrid/sg_config.h"
+#include "simgrid/s4u/Engine.hpp"
+#include "simgrid/sg_config.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");
+/*********
+ * Model *
+ *********/
+
+simgrid::kernel::resource::NetworkModel* surf_network_model = nullptr;
+
namespace simgrid {
- namespace surf {
+namespace kernel {
+namespace resource {
+
+/** @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;
+}
- /* List of links */
- std::unordered_map<std::string, LinkImpl*>* LinkImpl::links = new std::unordered_map<std::string, LinkImpl*>();
+double NetworkModel::get_bandwidth_factor(double /*size*/)
+{
+ return sg_bandwidth_factor;
+}
- LinkImpl* LinkImpl::byName(std::string name)
- {
- auto link = links->find(name);
- return link == links->end() ? nullptr : link->second;
- }
- /** @brief Returns the amount of links in the platform */
- int LinkImpl::linksCount()
- {
- return links->size();
+double NetworkModel::get_bandwidth_constraint(double rate, double /*bound*/, double /*size*/)
+{
+ return rate;
+}
+
+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_);
}
- /** @brief Returns a list of all existing links */
- LinkImpl** LinkImpl::linksList()
- {
- LinkImpl** res = xbt_new(LinkImpl*, (int)links->size());
- int i = 0;
- for (auto kv : *links) {
- res[i] = kv.second;
- i++;
- }
- return res;
+
+ 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;
}
- /** @brief destructor of the static data */
- void LinkImpl::linksExit()
- {
- for (auto kv : *links)
- (kv.second)->destroy();
- delete links;
+}
+
+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 (is_off()) {
+ 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_);
}
}
-/*********
- * Model *
- *********/
+void LinkImpl::on_bandwidth_change()
+{
+ s4u::Link::on_bandwidth_change(this->piface_);
+}
+
+void LinkImpl::set_bandwidth_profile(profile::Profile* profile)
+{
+ xbt_assert(bandwidth_.event == nullptr, "Cannot set a second bandwidth profile to Link %s", get_cname());
+ bandwidth_.event = profile->schedule(&future_evt_set, this);
+}
-simgrid::surf::NetworkModel *surf_network_model = nullptr;
+void LinkImpl::set_latency_profile(profile::Profile* profile)
+{
+ xbt_assert(latency_.event == nullptr, "Cannot set a second latency profile to Link %s", get_cname());
+ latency_.event = profile->schedule(&future_evt_set, this);
+}
-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 *
- ************/
-
- LinkImpl::LinkImpl(simgrid::surf::NetworkModel* model, const char* name, lmm_constraint_t constraint)
- : Resource(model, name, constraint), piface_(this)
- {
-
- if (strcmp(name,"__loopback__"))
- xbt_assert(not LinkImpl::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 */
- LinkImpl::~LinkImpl()
- {
- 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 LinkImpl::destroy()
- {
- if (not currentlyDestroying_) {
- currentlyDestroying_ = true;
- s4u::Link::onDestruction(this->piface_);
- delete this;
- }
- }
-
- bool LinkImpl::isUsed()
- {
- return lmm_constraint_used(model()->getMaxminSystem(), constraint());
- }
-
- double LinkImpl::latency()
- {
- return latency_.peak * latency_.scale;
- }
-
- double LinkImpl::bandwidth()
- {
- return bandwidth_.peak * bandwidth_.scale;
- }
-
- int LinkImpl::sharingPolicy()
- {
- return lmm_constraint_sharing_policy(constraint());
- }
-
- void LinkImpl::turnOn()
- {
- if (isOff()) {
- Resource::turnOn();
- s4u::Link::onStateChange(this->piface_);
- }
- }
- void LinkImpl::turnOff()
- {
- if (isOn()) {
- Resource::turnOff();
- s4u::Link::onStateChange(this->piface_);
- }
- }
- void LinkImpl::setStateTrace(tmgr_trace_t trace)
- {
- xbt_assert(stateEvent_ == nullptr, "Cannot set a second state trace to Link %s", cname());
- stateEvent_ = future_evt_set->add_trace(trace, this);
- }
- void LinkImpl::setBandwidthTrace(tmgr_trace_t trace)
- {
- xbt_assert(bandwidth_.event == nullptr, "Cannot set a second bandwidth trace to Link %s", cname());
- bandwidth_.event = future_evt_set->add_trace(trace, this);
- }
- void LinkImpl::setLatencyTrace(tmgr_trace_t trace)
- {
- xbt_assert(latency_.event == nullptr, "Cannot set a second latency trace to Link %s", cname());
- latency_.event = future_evt_set->add_trace(trace, this);
- }
-
-
- /**********
- * Action *
- **********/
-
- void NetworkAction::setState(Action::State state)
- {
- Action::setState(state);
- s4u::Link::onCommunicationStateChange(this);
- }
-
- /** @brief returns a list of all Links that this action is using */
- std::list<LinkImpl*> NetworkAction::links()
- {
- std::list<LinkImpl*> retlist;
- lmm_system_t sys = getModel()->getMaxminSystem();
- int llen = lmm_get_number_of_cnst_from_var(sys, variable_);
-
- 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 = static_cast<Resource*>(lmm_constraint_id(lmm_get_cnst_from_var(sys, getVariable(), i)));
- LinkImpl* link = dynamic_cast<LinkImpl*>(resource);
- if (link != nullptr)
- retlist.push_back(link);
- }
-
- return retlist;
- }
+/**********
+ * Action *
+ **********/
+
+void NetworkAction::set_state(Action::State state)
+{
+ 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);
+}
+
+/** @brief returns a list of all Links that this action is using */
+std::list<LinkImpl*> NetworkAction::links()
+{
+ 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 = static_cast<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_ */
