1 /* Copyright (c) 2013-2021. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "simgrid/s4u/Engine.hpp"
9 #include "simgrid/s4u/Link.hpp"
10 #include "simgrid/sg_config.hpp"
11 #include "simgrid/simix.hpp"
12 #include "src/kernel/lmm/maxmin.hpp"
13 #include "src/surf/network_interface.hpp"
14 #include "src/surf/network_wifi.hpp"
19 template class xbt::Extendable<s4u::Link>;
23 xbt::signal<void(Link&)> Link::on_creation;
24 xbt::signal<void(Link const&)> Link::on_destruction;
25 xbt::signal<void(Link const&)> Link::on_state_change;
26 xbt::signal<void(Link const&)> Link::on_bandwidth_change;
27 xbt::signal<void(kernel::resource::NetworkAction&)> Link::on_communicate;
28 xbt::signal<void(kernel::resource::NetworkAction&, kernel::resource::Action::State)>
29 Link::on_communication_state_change;
31 Link* Link::by_name(const std::string& name)
33 return Engine::get_instance()->link_by_name(name);
36 Link* Link::by_name_or_null(const std::string& name)
38 return Engine::get_instance()->link_by_name_or_null(name);
41 const std::string& Link::get_name() const
43 return this->pimpl_->get_name();
45 const char* Link::get_cname() const
47 return this->pimpl_->get_cname();
49 bool Link::is_used() const
51 return this->pimpl_->is_used();
54 bool Link::is_shared() const
56 return this->pimpl_->get_sharing_policy() != SharingPolicy::FATPIPE;
59 double Link::get_latency() const
61 return this->pimpl_->get_latency();
64 void Link::set_latency(double value)
66 kernel::actor::simcall([this, value] { pimpl_->set_latency(value); });
69 double Link::get_bandwidth() const
71 return this->pimpl_->get_bandwidth();
74 void Link::set_bandwidth(double value)
76 kernel::actor::simcall([this, value] { pimpl_->set_bandwidth(value); });
79 Link::SharingPolicy Link::get_sharing_policy() const
81 return this->pimpl_->get_sharing_policy();
84 void Link::set_host_wifi_rate(const s4u::Host* host, int level) const
86 xbt_assert(pimpl_->get_sharing_policy() == Link::SharingPolicy::WIFI, "Link %s does not seem to be a wifi link.",
88 auto* wlink = dynamic_cast<kernel::resource::NetworkWifiLink*>(pimpl_);
89 xbt_assert(wlink != nullptr, "Cannot convert link %s into a wifi link.", get_cname());
90 wlink->set_host_rate(host, level);
93 double Link::get_usage() const
95 return this->pimpl_->get_constraint()->get_usage();
100 simgrid::kernel::actor::simcall([this]() { this->pimpl_->turn_on(); });
102 void Link::turn_off()
104 simgrid::kernel::actor::simcall([this]() { this->pimpl_->turn_off(); });
107 bool Link::is_on() const
109 return this->pimpl_->is_on();
112 void Link::set_state_profile(kernel::profile::Profile* profile)
114 simgrid::kernel::actor::simcall([this, profile]() { this->pimpl_->set_state_profile(profile); });
116 void Link::set_bandwidth_profile(kernel::profile::Profile* profile)
118 simgrid::kernel::actor::simcall([this, profile]() { this->pimpl_->set_bandwidth_profile(profile); });
120 void Link::set_latency_profile(kernel::profile::Profile* trace)
122 simgrid::kernel::actor::simcall([this, trace]() { this->pimpl_->set_latency_profile(trace); });
125 const char* Link::get_property(const std::string& key) const
127 return this->pimpl_->get_property(key);
129 Link* Link::set_property(const std::string& key, const std::string& value)
131 simgrid::kernel::actor::simcall([this, &key, &value] { this->pimpl_->set_property(key, value); });
135 const std::unordered_map<std::string, std::string>* Link::get_properties() const
137 return this->pimpl_->get_properties();
140 Link* Link::set_properties(const std::unordered_map<std::string, std::string>& properties)
142 kernel::actor::simcall([this, &properties] { this->pimpl_->set_properties(properties); });
147 } // namespace simgrid
149 /* **************************** Public C interface *************************** */
151 const char* sg_link_get_name(const_sg_link_t link)
153 return link->get_cname();
156 const char* sg_link_name(const_sg_link_t link) // XBT_ATTRIB_DEPRECATED_v330
158 return sg_link_get_name(link);
161 sg_link_t sg_link_by_name(const char* name)
163 return simgrid::s4u::Link::by_name(name);
166 int sg_link_is_shared(const_sg_link_t link)
168 return link->is_shared();
171 double sg_link_get_bandwidth(const_sg_link_t link)
173 return link->get_bandwidth();
176 void sg_link_set_bandwidth(sg_link_t link, double value)
178 return link->set_bandwidth(value);
181 double sg_link_bandwidth(const_sg_link_t link) // XBT_ATTRIB_DEPRECATED_v330
183 return sg_link_get_bandwidth(link);
186 void sg_link_bandwidth_set(sg_link_t link, double value) // XBT_ATTRIB_DEPRECATED_v330
188 return sg_link_set_bandwidth(link, value);
191 double sg_link_get_latency(const_sg_link_t link)
193 return link->get_latency();
196 void sg_link_set_latency(sg_link_t link, double value)
198 return link->set_latency(value);
201 double sg_link_latency(const_sg_link_t link) // XBT_ATTRIB_DEPRECATED_v330
203 return sg_link_get_latency(link);
206 void sg_link_latency_set(sg_link_t link, double value) // XBT_ATTRIB_DEPRECATED_v330
208 return sg_link_set_latency(link, value);
211 void* sg_link_get_data(const_sg_link_t link)
213 return link->get_data();
216 void sg_link_set_data(sg_link_t link, void* data)
218 link->set_data(data);
221 void* sg_link_data(const_sg_link_t link) // XBT_ATTRIB_DEPRECATED_v330
223 return sg_link_get_data(link);
226 void sg_link_data_set(sg_link_t link, void* data) // XBT_ATTRIB_DEPRECATED_v330
228 sg_link_set_data(link, data);
233 return simgrid::s4u::Engine::get_instance()->get_link_count();
236 sg_link_t* sg_link_list()
238 std::vector<simgrid::s4u::Link*> links = simgrid::s4u::Engine::get_instance()->get_all_links();
240 sg_link_t* res = xbt_new(sg_link_t, links.size());
241 memcpy(res, links.data(), sizeof(sg_link_t) * links.size());