1 /* Copyright (c) 2013-2023. 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. */
6 #include <simgrid/s4u/Engine.hpp>
8 #include "src/kernel/EngineImpl.hpp"
9 #include "src/kernel/resource/StandardLinkImpl.hpp"
12 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(res_network);
18 namespace simgrid::kernel::resource {
20 StandardLinkImpl::StandardLinkImpl(const std::string& name) : LinkImpl(name), piface_(this)
22 if (name != "__loopback__")
23 xbt_assert(not s4u::Link::by_name_or_null(name), "Link '%s' declared several times in the platform.", name.c_str());
25 XBT_DEBUG("Create link '%s'", name.c_str());
28 void StandardLinkImpl::Deleter::operator()(resource::StandardLinkImpl* link) const
33 /** @brief Fire the required callbacks and destroy the object
35 * Don't delete directly a Link, call l->destroy() instead.
37 void StandardLinkImpl::destroy()
39 s4u::Link::on_destruction(piface_);
40 piface_.on_this_destruction(piface_);
44 constexpr kernel::lmm::Constraint::SharingPolicy to_maxmin_policy(s4u::Link::SharingPolicy policy)
47 case s4u::Link::SharingPolicy::WIFI:
48 return kernel::lmm::Constraint::SharingPolicy::WIFI;
49 case s4u::Link::SharingPolicy::NONLINEAR:
50 return kernel::lmm::Constraint::SharingPolicy::NONLINEAR;
51 case s4u::Link::SharingPolicy::FATPIPE:
52 return kernel::lmm::Constraint::SharingPolicy::FATPIPE;
54 return kernel::lmm::Constraint::SharingPolicy::SHARED;
58 void StandardLinkImpl::set_sharing_policy(s4u::Link::SharingPolicy policy, const s4u::NonLinearResourceCb& cb)
60 get_constraint()->set_sharing_policy(to_maxmin_policy(policy), cb);
61 sharing_policy_ = policy;
64 void StandardLinkImpl::latency_check(double latency) const
66 static double last_warned_latency = sg_precision_timing;
67 if (latency != 0.0 && latency < last_warned_latency) {
68 XBT_WARN("Latency for link %s is smaller than precision/timing (%g < %g)."
69 " For more accuracy, consider setting \"--cfg=precision/timing:%g\".",
70 get_cname(), latency, sg_precision_timing, latency);
71 last_warned_latency = latency;
75 StandardLinkImpl* StandardLinkImpl::set_englobing_zone(routing::NetZoneImpl* englobing_zone)
77 englobing_zone_ = englobing_zone;
81 void StandardLinkImpl::turn_on()
85 s4u::Link::on_state_change(piface_);
89 void StandardLinkImpl::turn_off()
93 s4u::Link::on_state_change(piface_);
95 const kernel::lmm::Element* elem = nullptr;
96 double now = EngineImpl::get_clock();
97 while (const auto* var = get_constraint()->get_variable(&elem)) {
98 Action* action = var->get_id();
99 if (action->get_state() == Action::State::INITED || action->get_state() == Action::State::STARTED) {
100 action->set_finish_time(now);
101 action->set_state(Action::State::FAILED);
107 void StandardLinkImpl::seal()
112 xbt_assert(this->get_model(), "Cannot seal Link(%s) without setting the Network model first", this->get_cname());
116 void StandardLinkImpl::on_bandwidth_change() const
118 s4u::Link::on_bandwidth_change(piface_);
119 piface_.on_this_bandwidth_change(piface_);
122 void StandardLinkImpl::set_bandwidth_profile(profile::Profile* profile)
125 xbt_assert(bandwidth_.event == nullptr, "Cannot set a second bandwidth profile to Link %s", get_cname());
126 bandwidth_.event = profile->schedule(&profile::future_evt_set, this);
130 void StandardLinkImpl::set_latency_profile(profile::Profile* profile)
133 xbt_assert(latency_.event == nullptr, "Cannot set a second latency profile to Link %s", get_cname());
134 latency_.event = profile->schedule(&profile::future_evt_set, this);
138 } // namespace simgrid::kernel::resource