1 /* Copyright (c) 2013-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "network_interface.hpp"
10 #include "simgrid/sg_config.h"
12 #ifndef NETWORK_INTERFACE_CPP_
13 #define NETWORK_INTERFACE_CPP_
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf, "Logging specific to the SURF network module");
23 const char* sg_link_name(Link *link) {
24 return link->getName();
26 Link * sg_link_by_name(const char* name) {
27 return Link::byName(name);
30 int sg_link_is_shared(Link *link){
31 return link->sharingPolicy();
33 double sg_link_bandwidth(Link *link){
34 return link->getBandwidth();
36 double sg_link_latency(Link *link){
37 return link->getLatency();
39 void* sg_link_data(Link *link) {
40 return link->getData();
42 void sg_link_data_set(Link *link,void *data) {
45 int sg_link_count(void) {
46 return Link::linksCount();
48 Link** sg_link_list(void) {
49 return Link::linksList();
51 void sg_link_exit(void) {
64 boost::unordered_map<std::string,Link *> *Link::links = new boost::unordered_map<std::string,Link *>();
65 Link *Link::byName(const char* name) {
66 if (links->find(name) == links->end())
68 return links->at(name);
70 /** @brief Returns the amount of links in the platform */
71 int Link::linksCount() {
74 /** @brief Returns a list of all existing links */
75 Link **Link::linksList() {
76 Link **res = xbt_new(Link*, (int)links->size());
78 for (auto kv : *links) {
83 /** @brief destructor of the static data */
84 void Link::linksExit() {
85 for (auto kv : *links)
86 (kv.second)->destroy();
94 simgrid::xbt::signal<void(Link*)> Link::onCreation;
95 simgrid::xbt::signal<void(Link*)> Link::onDestruction;
96 simgrid::xbt::signal<void(Link*)> Link::onStateChange;
98 simgrid::xbt::signal<void(NetworkAction*, Action::State, Action::State)> networkActionStateChangedCallbacks;
99 simgrid::xbt::signal<void(NetworkAction*, kernel::routing::NetCard *src, kernel::routing::NetCard *dst)> Link::onCommunicate;
108 simgrid::surf::NetworkModel *surf_network_model = nullptr;
113 NetworkModel::~NetworkModel()
115 lmm_system_free(maxminSystem_);
116 xbt_heap_free(actionHeap_);
120 double NetworkModel::latencyFactor(double /*size*/) {
121 return sg_latency_factor;
124 double NetworkModel::bandwidthFactor(double /*size*/) {
125 return sg_bandwidth_factor;
128 double NetworkModel::bandwidthConstraint(double rate, double /*bound*/, double /*size*/) {
132 double NetworkModel::next_occuring_event_full(double now)
134 NetworkAction *action = nullptr;
135 ActionList *runningActions = surf_network_model->getRunningActionSet();
138 minRes = shareResourcesMaxMin(runningActions, surf_network_model->maxminSystem_, surf_network_model->f_networkSolve);
140 for(ActionList::iterator it(runningActions->begin()), itend(runningActions->end())
141 ; it != itend ; ++it) {
142 action = static_cast<NetworkAction*>(&*it);
143 if (action->latency_ > 0) {
144 minRes = (minRes < 0) ? action->latency_ : std::min(minRes, action->latency_);
148 XBT_DEBUG("Min of share resources %f", minRes);
157 Link::Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props)
158 : Resource(model, name),
159 PropertyHolder(props)
161 links->insert({name, this});
164 m_bandwidth.scale = 1;
165 XBT_DEBUG("Create link '%s'",name);
168 Link::Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props, lmm_constraint_t constraint)
169 : Resource(model, name, constraint),
170 PropertyHolder(props)
172 if (strcmp(name,"__loopback__"))
173 xbt_assert(!Link::byName(name), "Link '%s' declared several times in the platform.", name);
176 m_bandwidth.scale = 1;
178 links->insert({name, this});
179 XBT_DEBUG("Create link '%s'",name);
183 /** @brief use destroy() instead of this destructor */
185 xbt_assert(currentlyDestroying_, "Don't delete Links directly. Call destroy() instead.");
187 /** @brief Fire the require callbacks and destroy the object
189 * Don't delete directly an Link, call l->destroy() instead.
193 if (!currentlyDestroying_) {
194 currentlyDestroying_ = true;
202 return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
205 double Link::getLatency()
207 return m_latency.peak * m_latency.scale;
210 double Link::getBandwidth()
212 return m_bandwidth.peak * m_bandwidth.scale;
215 int Link::sharingPolicy()
217 return lmm_constraint_sharing_policy(getConstraint());
226 void Link::turnOff(){
232 void Link::setStateTrace(tmgr_trace_t trace) {
233 xbt_assert(m_stateEvent==nullptr,"Cannot set a second state trace to Link %s", getName());
234 m_stateEvent = future_evt_set->add_trace(trace, 0.0, this);
236 void Link::setBandwidthTrace(tmgr_trace_t trace)
238 xbt_assert(m_bandwidth.event==nullptr,"Cannot set a second bandwidth trace to Link %s", getName());
239 m_bandwidth.event = future_evt_set->add_trace(trace, 0.0, this);
241 void Link::setLatencyTrace(tmgr_trace_t trace)
243 xbt_assert(m_latency.event==nullptr,"Cannot set a second latency trace to Link %s", getName());
244 m_latency.event = future_evt_set->add_trace(trace, 0.0, this);
252 void NetworkAction::setState(Action::State state){
253 Action::State old = getState();
254 Action::setState(state);
255 networkActionStateChangedCallbacks(this, old, state);
261 #endif /* NETWORK_INTERFACE_CPP_ */