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,
16 "Logging specific to the SURF network module");
24 const char* sg_link_name(Link *link) {
25 return link->getName();
27 Link * sg_link_by_name(const char* name) {
28 return Link::byName(name);
31 int sg_link_is_shared(Link *link){
32 return link->sharingPolicy();
34 double sg_link_bandwidth(Link *link){
35 return link->getBandwidth();
37 double sg_link_latency(Link *link){
38 return link->getLatency();
40 void* sg_link_data(Link *link) {
41 return link->getData();
43 void sg_link_data_set(Link *link,void *data) {
46 int sg_link_count(void) {
47 return Link::linksCount();
49 Link** sg_link_list(void) {
50 return Link::linksList();
52 void sg_link_exit(void) {
65 boost::unordered_map<std::string,Link *> *Link::links = new boost::unordered_map<std::string,Link *>();
66 Link *Link::byName(const char* name) {
69 res = links->at(name);
70 } catch (std::out_of_range& e) {}
74 /** @brief Returns the amount of links in the platform */
75 int Link::linksCount() {
78 /** @brief Returns a list of all existing links */
79 Link **Link::linksList() {
80 Link **res = xbt_new(Link*, (int)links->size());
82 for (auto kv : *links) {
87 /** @brief destructor of the static data */
88 void Link::linksExit() {
89 for (auto kv : *links)
90 (kv.second)->destroy();
98 simgrid::xbt::signal<void(simgrid::surf::Link*)> Link::onCreation;
99 simgrid::xbt::signal<void(simgrid::surf::Link*)> Link::onDestruction;
100 simgrid::xbt::signal<void(simgrid::surf::Link*)> Link::onStateChange;
102 simgrid::xbt::signal<void(simgrid::surf::NetworkAction*, e_surf_action_state_t, e_surf_action_state_t)> networkActionStateChangedCallbacks;
103 simgrid::xbt::signal<void(simgrid::surf::NetworkAction*, simgrid::surf::NetCard *src, simgrid::surf::NetCard *dst, double size, double rate)> networkCommunicateCallbacks;
108 void netlink_parse_init(sg_platf_link_cbarg_t link){
109 if (link->policy == SURF_LINK_FULLDUPLEX) {
111 link_id = bprintf("%s_UP", link->id);
112 surf_network_model->createLink(link_id,
114 link->bandwidth_trace,
118 link->state_trace, link->policy, link->properties);
120 link_id = bprintf("%s_DOWN", link->id);
121 surf_network_model->createLink(link_id,
123 link->bandwidth_trace,
127 link->state_trace, link->policy, link->properties);
130 surf_network_model->createLink(link->id,
132 link->bandwidth_trace,
136 link->state_trace, link->policy, link->properties);
144 simgrid::surf::NetworkModel *surf_network_model = NULL;
149 double NetworkModel::latencyFactor(double /*size*/) {
150 return sg_latency_factor;
153 double NetworkModel::bandwidthFactor(double /*size*/) {
154 return sg_bandwidth_factor;
157 double NetworkModel::bandwidthConstraint(double rate, double /*bound*/, double /*size*/) {
161 double NetworkModel::next_occuring_event_full(double now)
163 NetworkAction *action = NULL;
164 ActionList *runningActions = surf_network_model->getRunningActionSet();
167 minRes = shareResourcesMaxMin(runningActions, surf_network_model->p_maxminSystem, surf_network_model->f_networkSolve);
169 for(ActionList::iterator it(runningActions->begin()), itend(runningActions->end())
170 ; it != itend ; ++it) {
171 action = static_cast<NetworkAction*>(&*it);
172 #ifdef HAVE_LATENCY_BOUND_TRACKING
173 if (lmm_is_variable_limited_by_latency(action->getVariable())) {
174 action->m_latencyLimited = 1;
176 action->m_latencyLimited = 0;
179 if (action->m_latency > 0) {
180 minRes = (minRes < 0) ? action->m_latency : std::min(minRes, action->m_latency);
184 XBT_DEBUG("Min of share resources %f", minRes);
193 Link::Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props)
194 : Resource(model, name),
195 PropertyHolder(props)
197 links->insert({name, this});
200 m_bandwidth.scale = 1;
201 XBT_DEBUG("Create link '%s'",name);
204 Link::Link(simgrid::surf::NetworkModel *model, const char *name, xbt_dict_t props,
205 lmm_constraint_t constraint,
206 tmgr_trace_t state_trace)
207 : Resource(model, name, constraint),
208 PropertyHolder(props)
211 m_bandwidth.scale = 1;
213 m_stateEvent = future_evt_set->add_trace(state_trace, 0.0, this);
215 links->insert({name, this});
216 XBT_DEBUG("Create link '%s'",name);
220 /** @brief use destroy() instead of this destructor */
222 xbt_assert(currentlyDestroying_, "Don't delete Links directly. Call destroy() instead.");
224 /** @brief Fire the require callbacks and destroy the object
226 * Don't delete directly an Link, call l->destroy() instead.
230 if (!currentlyDestroying_) {
231 currentlyDestroying_ = true;
239 return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
242 double Link::getLatency()
244 return m_latency.peak * m_latency.scale;
247 double Link::getBandwidth()
249 return m_bandwidth.peak * m_bandwidth.scale;
252 int Link::sharingPolicy()
254 return lmm_constraint_sharing_policy(getConstraint());
263 void Link::turnOff(){
269 void Link::set_state_trace(tmgr_trace_t trace)
271 xbt_assert(m_stateEvent==NULL,"Cannot set a second state trace to Link %s", getName());
273 m_stateEvent = future_evt_set->add_trace(trace, 0.0, this);
275 void Link::set_bandwidth_trace(tmgr_trace_t trace)
277 xbt_assert(m_bandwidth.event==NULL,"Cannot set a second bandwidth trace to Link %s", getName());
279 m_bandwidth.event = future_evt_set->add_trace(trace, 0.0, this);
281 void Link::set_latency_trace(tmgr_trace_t trace)
283 xbt_assert(m_latency.event==NULL,"Cannot set a second latency trace to Link %s", getName());
285 m_latency.event = future_evt_set->add_trace(trace, 0.0, this);
293 void NetworkAction::setState(e_surf_action_state_t state){
294 e_surf_action_state_t old = getState();
295 Action::setState(state);
296 networkActionStateChangedCallbacks(this, old, state);
302 #endif /* NETWORK_INTERFACE_CPP_ */