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/Exception.hpp"
9 #include "simgrid/s4u/Engine.hpp"
10 #include "simgrid/s4u/Link.hpp"
11 #include "simgrid/sg_config.hpp"
12 #include "simgrid/simix.hpp"
13 #include "src/kernel/lmm/maxmin.hpp"
14 #include "src/surf/network_interface.hpp"
15 #include "src/surf/network_wifi.hpp"
17 #include "xbt/parse_units.hpp"
21 template class xbt::Extendable<s4u::Link>;
25 xbt::signal<void(Link&)> Link::on_creation;
26 xbt::signal<void(Link const&)> Link::on_destruction;
27 xbt::signal<void(Link const&)> Link::on_state_change;
28 xbt::signal<void(Link const&)> Link::on_bandwidth_change;
29 xbt::signal<void(kernel::resource::NetworkAction&)> Link::on_communicate;
30 xbt::signal<void(kernel::resource::NetworkAction&, kernel::resource::Action::State)>
31 Link::on_communication_state_change;
33 Link* Link::by_name(const std::string& name)
35 return Engine::get_instance()->link_by_name(name);
38 Link* Link::by_name_or_null(const std::string& name)
40 return Engine::get_instance()->link_by_name_or_null(name);
43 const std::string& Link::get_name() const
45 return this->pimpl_->get_name();
47 const char* Link::get_cname() const
49 return this->pimpl_->get_cname();
51 bool Link::is_used() const
53 return this->pimpl_->is_used();
56 bool Link::is_shared() const
58 return this->pimpl_->get_sharing_policy() != SharingPolicy::FATPIPE;
61 double Link::get_latency() const
63 return this->pimpl_->get_latency();
66 Link* Link::set_latency(double value)
68 kernel::actor::simcall([this, value] { pimpl_->set_latency(value); });
72 Link* Link::set_latency(const std::string& value)
76 d_value = xbt_parse_get_time("", 0, value.c_str(), nullptr, "");
77 } catch (const simgrid::ParseError&) {
78 xbt_die("Link: Impossible to latency, invalid value %s", value.c_str());
80 return set_latency(d_value);
83 double Link::get_bandwidth() const
85 return this->pimpl_->get_bandwidth();
88 Link* Link::set_bandwidth(double value)
90 kernel::actor::simcall([this, value] { pimpl_->set_bandwidth(value); });
94 Link::SharingPolicy Link::get_sharing_policy() const
96 return this->pimpl_->get_sharing_policy();
99 void Link::set_host_wifi_rate(const s4u::Host* host, int level) const
101 xbt_assert(pimpl_->get_sharing_policy() == Link::SharingPolicy::WIFI, "Link %s does not seem to be a wifi link.",
103 auto* wlink = dynamic_cast<kernel::resource::NetworkWifiLink*>(pimpl_);
104 xbt_assert(wlink != nullptr, "Cannot convert link %s into a wifi link.", get_cname());
105 wlink->set_host_rate(host, level);
108 double Link::get_usage() const
110 return this->pimpl_->get_constraint()->get_usage();
115 kernel::actor::simcall([this]() { this->pimpl_->turn_on(); });
117 void Link::turn_off()
119 kernel::actor::simcall([this]() { this->pimpl_->turn_off(); });
123 kernel::actor::simcall([this]() { this->pimpl_->seal(); });
126 bool Link::is_on() const
128 return this->pimpl_->is_on();
131 Link* Link::set_state_profile(kernel::profile::Profile* profile)
133 xbt_assert(not pimpl_->is_sealed(), "Cannot set a state profile once the Link is sealed");
134 kernel::actor::simcall([this, profile]() { this->pimpl_->set_state_profile(profile); });
138 Link* Link::set_bandwidth_profile(kernel::profile::Profile* profile)
140 xbt_assert(not pimpl_->is_sealed(), "Cannot set a bandwidth profile once the Link is sealed");
141 kernel::actor::simcall([this, profile]() { this->pimpl_->set_bandwidth_profile(profile); });
145 Link* Link::set_latency_profile(kernel::profile::Profile* profile)
147 xbt_assert(not pimpl_->is_sealed(), "Cannot set a latency profile once the Link is sealed");
148 kernel::actor::simcall([this, profile]() { this->pimpl_->set_latency_profile(profile); });
152 const char* Link::get_property(const std::string& key) const
154 return this->pimpl_->get_property(key);
156 Link* Link::set_property(const std::string& key, const std::string& value)
158 kernel::actor::simcall([this, &key, &value] { this->pimpl_->set_property(key, value); });
162 const std::unordered_map<std::string, std::string>* Link::get_properties() const
164 return this->pimpl_->get_properties();
167 Link* Link::set_properties(const std::unordered_map<std::string, std::string>& properties)
169 kernel::actor::simcall([this, &properties] { this->pimpl_->set_properties(properties); });
174 } // namespace simgrid
176 /* **************************** Public C interface *************************** */
178 const char* sg_link_get_name(const_sg_link_t link)
180 return link->get_cname();
183 const char* sg_link_name(const_sg_link_t link) // XBT_ATTRIB_DEPRECATED_v330
185 return sg_link_get_name(link);
188 sg_link_t sg_link_by_name(const char* name)
190 return simgrid::s4u::Link::by_name(name);
193 int sg_link_is_shared(const_sg_link_t link)
195 return link->is_shared();
198 double sg_link_get_bandwidth(const_sg_link_t link)
200 return link->get_bandwidth();
203 void sg_link_set_bandwidth(sg_link_t link, double value)
205 link->set_bandwidth(value);
208 double sg_link_bandwidth(const_sg_link_t link) // XBT_ATTRIB_DEPRECATED_v330
210 return sg_link_get_bandwidth(link);
213 void sg_link_bandwidth_set(sg_link_t link, double value) // XBT_ATTRIB_DEPRECATED_v330
215 sg_link_set_bandwidth(link, value);
218 double sg_link_get_latency(const_sg_link_t link)
220 return link->get_latency();
223 void sg_link_set_latency(sg_link_t link, double value)
225 link->set_latency(value);
228 double sg_link_latency(const_sg_link_t link) // XBT_ATTRIB_DEPRECATED_v330
230 return sg_link_get_latency(link);
233 void sg_link_latency_set(sg_link_t link, double value) // XBT_ATTRIB_DEPRECATED_v330
235 sg_link_set_latency(link, value);
238 void* sg_link_get_data(const_sg_link_t link)
240 return link->get_data();
243 void sg_link_set_data(sg_link_t link, void* data)
245 link->set_data(data);
248 void* sg_link_data(const_sg_link_t link) // XBT_ATTRIB_DEPRECATED_v330
250 return sg_link_get_data(link);
253 void sg_link_data_set(sg_link_t link, void* data) // XBT_ATTRIB_DEPRECATED_v330
255 sg_link_set_data(link, data);
260 return simgrid::s4u::Engine::get_instance()->get_link_count();
263 sg_link_t* sg_link_list()
265 std::vector<simgrid::s4u::Link*> links = simgrid::s4u::Engine::get_instance()->get_all_links();
267 sg_link_t* res = xbt_new(sg_link_t, links.size());
268 memcpy(res, links.data(), sizeof(sg_link_t) * links.size());