+++ /dev/null
-/* Copyright (c) 2013-2018. 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/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 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;
-}
-
-double NetworkModel::get_bandwidth_factor(double /*size*/)
-{
- return sg_bandwidth_factor;
-}
-
-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_);
- }
-
- 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 (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_);
- }
-}
-
-void LinkImpl::on_bandwidth_change()
-{
- s4u::Link::on_bandwidth_change(this->piface_);
-}
-
-void LinkImpl::set_bandwidth_trace(tmgr_trace_t trace)
-{
- xbt_assert(bandwidth_.event == nullptr, "Cannot set a second bandwidth trace to Link %s", get_cname());
- bandwidth_.event = future_evt_set.add_trace(trace, this);
-}
-
-void LinkImpl::set_latency_trace(tmgr_trace_t trace)
-{
- xbt_assert(latency_.event == nullptr, "Cannot set a second latency trace to Link %s", get_cname());
- latency_.event = future_evt_set.add_trace(trace, this);
-}
-
-/**********
- * 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_ */
