1 /* Copyright (c) 2013-2020. 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 double Link::get_latency() const
56 return this->pimpl_->get_latency();
59 void Link::set_latency(double value)
61 kernel::actor::simcall([this, value] { pimpl_->set_latency(value); });
64 double Link::get_bandwidth() const
66 return this->pimpl_->get_bandwidth();
69 void Link::set_bandwidth(double value)
71 kernel::actor::simcall([this, value] { pimpl_->set_bandwidth(value); });
74 Link::SharingPolicy Link::get_sharing_policy() const
76 return this->pimpl_->get_sharing_policy();
79 void Link::set_host_wifi_rate(const s4u::Host* host, int level) const
81 xbt_assert(pimpl_->get_sharing_policy() == Link::SharingPolicy::WIFI, "Link %s does not seem to be a wifi link.",
83 auto* wlink = dynamic_cast<kernel::resource::NetworkWifiLink*>(pimpl_);
84 xbt_assert(wlink != nullptr, "Cannot convert link %s into a wifi link.", get_cname());
85 wlink->set_host_rate(host, level);
88 double Link::get_usage() const
90 return this->pimpl_->get_constraint()->get_usage();
95 simgrid::kernel::actor::simcall([this]() { this->pimpl_->turn_on(); });
99 simgrid::kernel::actor::simcall([this]() { this->pimpl_->turn_off(); });
102 bool Link::is_on() const
104 return this->pimpl_->is_on();
107 void Link::set_state_profile(kernel::profile::Profile* profile)
109 simgrid::kernel::actor::simcall([this, profile]() { this->pimpl_->set_state_profile(profile); });
111 void Link::set_bandwidth_profile(kernel::profile::Profile* profile)
113 simgrid::kernel::actor::simcall([this, profile]() { this->pimpl_->set_bandwidth_profile(profile); });
115 void Link::set_latency_profile(kernel::profile::Profile* trace)
117 simgrid::kernel::actor::simcall([this, trace]() { this->pimpl_->set_latency_profile(trace); });
120 const char* Link::get_property(const std::string& key) const
122 return this->pimpl_->get_property(key);
124 void Link::set_property(const std::string& key, const std::string& value)
126 simgrid::kernel::actor::simcall([this, &key, &value] { this->pimpl_->set_property(key, value); });
129 } // namespace simgrid
131 /* **************************** Public C interface *************************** */
133 const char* sg_link_name(const_sg_link_t link)
135 return link->get_cname();
137 sg_link_t sg_link_by_name(const char* name)
139 return simgrid::s4u::Link::by_name(name);
142 int sg_link_is_shared(const_sg_link_t link)
144 return (int)link->get_sharing_policy();
146 double sg_link_bandwidth(const_sg_link_t link)
148 return link->get_bandwidth();
151 void sg_link_bandwidth_set(sg_link_t link, double value)
153 return link->set_bandwidth(value);
156 double sg_link_latency(const_sg_link_t link)
158 return link->get_latency();
160 void sg_link_latency_set(sg_link_t link, double value)
162 return link->set_latency(value);
164 void* sg_link_data(const_sg_link_t link)
166 return link->get_data();
168 void sg_link_data_set(sg_link_t link, void* data)
170 link->set_data(data);
174 return simgrid::s4u::Engine::get_instance()->get_link_count();
177 sg_link_t* sg_link_list()
179 std::vector<simgrid::s4u::Link*> links = simgrid::s4u::Engine::get_instance()->get_all_links();
181 sg_link_t* res = xbt_new(sg_link_t, links.size());
182 memcpy(res, links.data(), sizeof(sg_link_t) * links.size());