src/s4u/s4u_Link.cpp

   1 /* Copyright (c) 2013-2020. The SimGrid Team. All rights reserved.          */
   2
   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. */
   5
   6 #include <algorithm>
   7
   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"
  15 #include "xbt/log.h"
  16
  17 namespace simgrid {
  18
  19 template class xbt::Extendable<s4u::Link>;
  20
  21 namespace s4u {
  22
  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;
  30
  31 Link* Link::by_name(const std::string& name)
  32 {
  33   return Engine::get_instance()->link_by_name(name);
  34 }
  35
  36 Link* Link::by_name_or_null(const std::string& name)
  37 {
  38   return Engine::get_instance()->link_by_name_or_null(name);
  39 }
  40
  41 const std::string& Link::get_name() const
  42 {
  43   return this->pimpl_->get_name();
  44 }
  45 const char* Link::get_cname() const
  46 {
  47   return this->pimpl_->get_cname();
  48 }
  49 bool Link::is_used() const
  50 {
  51   return this->pimpl_->is_used();
  52 }
  53
  54 double Link::get_latency() const
  55 {
  56   return this->pimpl_->get_latency();
  57 }
  58
  59 void Link::set_latency(double value)
  60 {
  61   kernel::actor::simcall([this, value] { pimpl_->set_latency(value); });
  62 }
  63
  64 double Link::get_bandwidth() const
  65 {
  66   return this->pimpl_->get_bandwidth();
  67 }
  68
  69 void Link::set_bandwidth(double value)
  70 {
  71   kernel::actor::simcall([this, value] { pimpl_->set_bandwidth(value); });
  72 }
  73
  74 Link::SharingPolicy Link::get_sharing_policy() const
  75 {
  76   return this->pimpl_->get_sharing_policy();
  77 }
  78
  79 void Link::set_host_wifi_rate(const s4u::Host* host, int level) const
  80 {
  81   xbt_assert(pimpl_->get_sharing_policy() == Link::SharingPolicy::WIFI, "Link %s does not seem to be a wifi link.",
  82              get_cname());
  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);
  86 }
  87
  88 double Link::get_usage() const
  89 {
  90   return this->pimpl_->get_constraint()->get_usage();
  91 }
  92
  93 void Link::turn_on()
  94 {
  95   simgrid::kernel::actor::simcall([this]() { this->pimpl_->turn_on(); });
  96 }
  97 void Link::turn_off()
  98 {
  99   simgrid::kernel::actor::simcall([this]() { this->pimpl_->turn_off(); });
 100 }
 101
 102 bool Link::is_on() const
 103 {
 104   return this->pimpl_->is_on();
 105 }
 106
 107 void Link::set_state_profile(kernel::profile::Profile* profile)
 108 {
 109   simgrid::kernel::actor::simcall([this, profile]() { this->pimpl_->set_state_profile(profile); });
 110 }
 111 void Link::set_bandwidth_profile(kernel::profile::Profile* profile)
 112 {
 113   simgrid::kernel::actor::simcall([this, profile]() { this->pimpl_->set_bandwidth_profile(profile); });
 114 }
 115 void Link::set_latency_profile(kernel::profile::Profile* trace)
 116 {
 117   simgrid::kernel::actor::simcall([this, trace]() { this->pimpl_->set_latency_profile(trace); });
 118 }
 119
 120 const char* Link::get_property(const std::string& key) const
 121 {
 122   return this->pimpl_->get_property(key);
 123 }
 124 void Link::set_property(const std::string& key, const std::string& value)
 125 {
 126   simgrid::kernel::actor::simcall([this, &key, &value] { this->pimpl_->set_property(key, value); });
 127 }
 128 } // namespace s4u
 129 } // namespace simgrid
 130
 131 /* **************************** Public C interface *************************** */
 132
 133 const char* sg_link_name(const_sg_link_t link)
 134 {
 135   return link->get_cname();
 136 }
 137 sg_link_t sg_link_by_name(const char* name)
 138 {
 139   return simgrid::s4u::Link::by_name(name);
 140 }
 141
 142 int sg_link_is_shared(const_sg_link_t link)
 143 {
 144   return link->get_sharing_policy() != simgrid::s4u::Link::SharingPolicy::FATPIPE;
 145 }
 146 double sg_link_bandwidth(const_sg_link_t link)
 147 {
 148   return link->get_bandwidth();
 149 }
 150
 151 void sg_link_bandwidth_set(sg_link_t link, double value)
 152 {
 153   return link->set_bandwidth(value);
 154 }
 155
 156 double sg_link_latency(const_sg_link_t link)
 157 {
 158   return link->get_latency();
 159 }
 160 void sg_link_latency_set(sg_link_t link, double value)
 161 {
 162   return link->set_latency(value);
 163 }
 164 void* sg_link_data(const_sg_link_t link)
 165 {
 166   return link->get_data();
 167 }
 168 void sg_link_data_set(sg_link_t link, void* data)
 169 {
 170   link->set_data(data);
 171 }
 172 int sg_link_count()
 173 {
 174   return simgrid::s4u::Engine::get_instance()->get_link_count();
 175 }
 176
 177 sg_link_t* sg_link_list()
 178 {
 179   std::vector<simgrid::s4u::Link*> links = simgrid::s4u::Engine::get_instance()->get_all_links();
 180
 181   sg_link_t* res = xbt_new(sg_link_t, links.size());
 182   memcpy(res, links.data(), sizeof(sg_link_t) * links.size());
 183
 184   return res;
 185 }