1 /* Copyright (c) 2013-2022. 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/kernel/routing/NetPoint.hpp>
7 #include <simgrid/s4u/Engine.hpp>
8 #include <simgrid/s4u/Host.hpp>
10 #include "src/kernel/EngineImpl.hpp"
11 #include "src/kernel/resource/VirtualMachineImpl.hpp"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(res_host, ker_resource, "Host resources agregate CPU, networking and I/O features");
31 HostImpl::HostImpl(const std::string& name, s4u::Host* piface) : piface_(this), name_(name)
33 xbt_assert(s4u::Host::by_name_or_null(name_) == nullptr, "Refusing to create a second host named '%s'.", get_cname());
34 s4u::Engine::get_instance()->host_register(name_, piface);
37 HostImpl::HostImpl(const std::string& name) : piface_(this), name_(name)
39 xbt_assert(s4u::Host::by_name_or_null(name_) == nullptr, "Refusing to create a second host named '%s'.", get_cname());
40 s4u::Engine::get_instance()->host_register(name_, &piface_);
45 /* All actors should be gone when the host is turned off (by the end of the simulation). */
46 if (not actor_list_.empty()) {
47 std::string msg = "Shutting down host, but it's not empty:";
48 for (auto const& actor : actor_list_)
49 msg += "\n\t" + std::string(actor.get_name());
51 EngineImpl::get_instance()->display_all_actor_status();
52 xbt_die("%s", msg.c_str());
54 for (auto const& arg : actors_at_boot_)
56 actors_at_boot_.clear();
58 for (auto const& d : disks_)
62 /** @brief Fire the required callbacks and destroy the object
64 * Don't delete directly a Host, call h->destroy() instead.
66 void HostImpl::destroy()
68 s4u::Host::on_destruction(*this->get_iface());
69 s4u::Engine::get_instance()->host_unregister(std::string(name_));
73 /** Re-starts all the actors that are marked as restartable.
75 * Weird things will happen if you turn on a host that is already on. S4U is fool-proof, not this.
77 void HostImpl::turn_on() const
79 for (auto const& arg : actors_at_boot_) {
80 XBT_DEBUG("Booting Actor %s(%s) right now", arg->name.c_str(), arg->host->get_cname());
81 actor::ActorImplPtr actor = actor::ActorImpl::create(arg);
85 /** Kill all actors hosted here */
86 void HostImpl::turn_off(const actor::ActorImpl* issuer)
88 for (auto& actor : actor_list_) {
89 XBT_DEBUG("Killing Actor %s@%s on behalf of %s which turned off that host.", actor.get_cname(),
90 actor.get_host()->get_cname(), issuer->get_cname());
93 for (const auto& activity : EngineImpl::get_instance()->get_maestro()->activities_) {
94 auto* exec = dynamic_cast<activity::ExecImpl*>(activity.get());
95 if (exec != nullptr) {
96 auto hosts = exec->get_hosts();
97 if (std::find(hosts.begin(), hosts.end(), &piface_) != hosts.end()) {
99 exec->set_state(activity::State::FAILED);
103 // When a host is turned off, we want to keep only the actors that should restart for when it will boot again.
104 // Then get rid of the others.
105 auto elm = remove_if(begin(actors_at_boot_), end(actors_at_boot_), [](const actor::ProcessArg* arg) {
106 if (arg->auto_restart)
111 actors_at_boot_.erase(elm, end(actors_at_boot_));
114 HostImpl* HostImpl::set_englobing_zone(routing::NetZoneImpl* englobing_zone)
116 englobing_zone_ = englobing_zone;
120 std::vector<s4u::ActorPtr> HostImpl::get_all_actors()
122 std::vector<s4u::ActorPtr> res;
123 for (auto& actor : actor_list_)
124 res.emplace_back(actor.get_ciface());
127 size_t HostImpl::get_actor_count() const
129 return actor_list_.size();
132 std::vector<s4u::Disk*> HostImpl::get_disks() const
134 std::vector<s4u::Disk*> disks;
135 for (auto const& d : disks_)
136 disks.push_back(d.second->get_iface());
140 s4u::Disk* HostImpl::create_disk(const std::string& name, double read_bandwidth, double write_bandwidth)
142 auto disk = piface_.get_netpoint()->get_englobing_zone()->get_disk_model()->create_disk(name, read_bandwidth,
144 return disk->set_host(&piface_)->get_iface();
147 void HostImpl::add_disk(const s4u::Disk* disk)
149 disks_[disk->get_name()] = disk->get_impl();
152 void HostImpl::remove_disk(const std::string& name)
157 void HostImpl::seal()
163 get_iface()->get_cpu()->seal();
167 for (auto const& disk : disks_)
170 } // namespace resource
171 } // namespace kernel
172 } // namespace simgrid