-/* Copyright (c) 2013-2014. The SimGrid Team.
- * All rights reserved. */
+/* 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 <algorithm>
+
#include "network_interface.hpp"
-#include "simgrid/sg_config.h"
+#include "simgrid/sg_config.hpp"
#ifndef NETWORK_INTERFACE_CPP_
#define NETWORK_INTERFACE_CPP_
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
- "Logging specific to the SURF network module");
-
-/*************
- * Callbacks *
- *************/
-
-surf_callback(void, NetworkLinkPtr) networkLinkCreatedCallbacks;
-surf_callback(void, NetworkLinkPtr) networkLinkDestructedCallbacks;
-surf_callback(void, NetworkLinkPtr, e_surf_resource_state_t, e_surf_resource_state_t) networkLinkStateChangedCallbacks;
-surf_callback(void, NetworkActionPtr, e_surf_action_state_t, e_surf_action_state_t) networkActionStateChangedCallbacks;
-surf_callback(void, NetworkActionPtr, RoutingEdgePtr src, RoutingEdgePtr dst, double size, double rate) networkCommunicateCallbacks;
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf, "Logging specific to the SURF network module");
+
+namespace simgrid {
+ namespace surf {
+
+ /* List of links */
+ std::unordered_map<std::string, LinkImpl*>* LinkImpl::links = new std::unordered_map<std::string, LinkImpl*>();
+
+ 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();
+ }
+ void LinkImpl::linksList(std::vector<s4u::Link*>* linkList)
+ {
+ for (auto const& kv : *links) {
+ linkList->push_back(&kv.second->piface_);
+ }
+ }
+
+ /** @brief Returns a list of all existing links */
+ LinkImpl** LinkImpl::linksList()
+ {
+ LinkImpl** res = xbt_new(LinkImpl*, (int)links->size());
+ int i = 0;
+ for (auto const& kv : *links) {
+ res[i] = kv.second;
+ i++;
+ }
+ return res;
+ }
+ /** @brief destructor of the static data */
+ void LinkImpl::linksExit()
+ {
+ for (auto const& kv : *links)
+ (kv.second)->destroy();
+ delete links;
+ }
+ }
+}
/*********
* Model *
*********/
-NetworkModelPtr surf_network_model = NULL;
-
-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;
-}
-
-/************
- * Resource *
- ************/
-
-NetworkLink::NetworkLink(NetworkModelPtr model, const char *name, xbt_dict_t props)
-: Resource(model, name, props)
-, p_latEvent(NULL)
-{
- surf_callback_emit(networkLinkCreatedCallbacks, this);
-}
-
-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)
-{
- surf_callback_emit(networkLinkCreatedCallbacks, this);
- if (state_trace)
- p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, static_cast<ResourcePtr>(this));
-}
-
-NetworkLink::~NetworkLink()
-{
- surf_callback_emit(networkLinkDestructedCallbacks, this);
-}
-
-bool NetworkLink::isUsed()
-{
- return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
-}
-
-double NetworkLink::getLatency()
-{
- return m_latCurrent;
-}
-
-double NetworkLink::getBandwidth()
-{
- return p_power.peak * p_power.scale;
-}
-
-bool NetworkLink::isShared()
-{
- return lmm_constraint_is_shared(getConstraint());
-}
-
-void NetworkLink::setState(e_surf_resource_state_t state){
- e_surf_resource_state_t old = Resource::getState();
- Resource::setState(state);
- surf_callback_emit(networkLinkStateChangedCallbacks, this, old, state);
-}
-
-/**********
- * Action *
- **********/
-
-void NetworkAction::setState(e_surf_action_state_t state){
- e_surf_action_state_t old = getState();
- Action::setState(state);
- surf_callback_emit(networkActionStateChangedCallbacks, this, old, state);
+simgrid::surf::NetworkModel *surf_network_model = nullptr;
+
+namespace simgrid {
+ namespace surf {
+
+ /** Value of the 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);
+
+ NetworkModel::~NetworkModel() = default;
+
+ 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::next_occuring_event_full(double now)
+ {
+ double minRes = Model::next_occuring_event_full(now);
+
+ for (kernel::resource::Action const& action : *get_running_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(simgrid::surf::NetworkModel* model, const std::string& name, kernel::lmm::Constraint* constraint)
+ : Resource(model, name, constraint), piface_(this)
+ {
+
+ if (name != "__loopback__")
+ xbt_assert(not LinkImpl::byName(name), "Link '%s' declared several times in the platform.", name.c_str());
+
+ latency_.scale = 1;
+ bandwidth_.scale = 1;
+
+ links->insert({name, this});
+ XBT_DEBUG("Create link '%s'", name.c_str());
+ }
+
+ /** @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::is_used()
+ {
+ return get_model()->get_maxmin_system()->constraint_used(get_constraint());
+ }
+
+ double LinkImpl::latency()
+ {
+ return latency_.peak * latency_.scale;
+ }
+
+ double LinkImpl::bandwidth()
+ {
+ return bandwidth_.peak * bandwidth_.scale;
+ }
+
+ int LinkImpl::sharingPolicy()
+ {
+ return get_constraint()->get_sharing_policy();
+ }
+
+ void LinkImpl::turn_on()
+ {
+ if (is_off()) {
+ Resource::turn_on();
+ s4u::Link::onStateChange(this->piface_);
+ }
+ }
+ void LinkImpl::turn_off()
+ {
+ if (is_on()) {
+ Resource::turn_off();
+ 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", get_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", get_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", get_cname());
+ latency_.event = future_evt_set->add_trace(trace, this);
+ }
+
+
+ /**********
+ * Action *
+ **********/
+
+ void NetworkAction::set_state(Action::State state)
+ {
+ Action::set_state(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;
+ 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*...
+ kernel::resource::Resource* resource =
+ static_cast<kernel::resource::Resource*>(get_variable()->get_constraint(i)->get_id());
+ LinkImpl* link = dynamic_cast<LinkImpl*>(resource);
+ if (link != nullptr)
+ retlist.push_back(link);
+ }
+
+ return retlist;
+ }
+ }
}
#endif /* NETWORK_INTERFACE_CPP_ */
