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. */
6 #include "simgrid/s4u/Engine.hpp"
7 #include "simgrid/s4u/Host.hpp"
8 #include "src/plugins/vm/VirtualMachineImpl.hpp"
9 #include "src/simix/smx_private.hpp"
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(res_host, ker_resource, "Host resources agregate CPU, networking and I/O features");
28 HostImpl::HostImpl(const std::string& name, s4u::Host* piface) : piface_(this), name_(name)
30 xbt_assert(s4u::Host::by_name_or_null(name_) == nullptr, "Refusing to create a second host named '%s'.", get_cname());
31 s4u::Engine::get_instance()->host_register(name_, piface);
34 HostImpl::HostImpl(const std::string& name) : piface_(this), name_(name)
36 xbt_assert(s4u::Host::by_name_or_null(name_) == nullptr, "Refusing to create a second host named '%s'.", get_cname());
37 s4u::Engine::get_instance()->host_register(name_, &piface_);
42 /* All actors should be gone when the host is turned off (by the end of the simulation). */
43 if (not actor_list_.empty()) {
44 std::string msg = "Shutting down host, but it's not empty:";
45 for (auto const& actor : actor_list_)
46 msg += "\n\t" + std::string(actor.get_name());
48 simix_global->display_all_actor_status();
49 xbt_die("%s", msg.c_str());
51 for (auto const& arg : actors_at_boot_)
53 actors_at_boot_.clear();
55 for (auto const& d : disks_)
59 /** @brief Fire the required callbacks and destroy the object
61 * Don't delete directly a Host, call h->destroy() instead.
63 void HostImpl::destroy()
65 s4u::Host::on_destruction(*this->get_iface());
66 s4u::Engine::get_instance()->host_unregister(std::string(name_));
70 /** Re-starts all the actors that are marked as restartable.
72 * Weird things will happen if you turn on a host that is already on. S4U is fool-proof, not this.
74 void HostImpl::turn_on() const
76 for (auto const& arg : actors_at_boot_) {
77 XBT_DEBUG("Booting Actor %s(%s) right now", arg->name.c_str(), arg->host->get_cname());
78 simgrid::kernel::actor::ActorImplPtr actor = simgrid::kernel::actor::ActorImpl::create(
79 arg->name, arg->code, nullptr, arg->host, arg->properties.get(), nullptr);
81 *actor->on_exit = *arg->on_exit;
82 if (arg->kill_time >= 0)
83 actor->set_kill_time(arg->kill_time);
84 if (arg->auto_restart)
85 actor->set_auto_restart(arg->auto_restart);
91 /** Kill all actors hosted here */
92 void HostImpl::turn_off(const kernel::actor::ActorImpl* issuer)
94 for (auto& actor : actor_list_) {
95 XBT_DEBUG("Killing Actor %s@%s on behalf of %s which turned off that host.", actor.get_cname(),
96 actor.get_host()->get_cname(), issuer->get_cname());
99 // When a host is turned off, we want to keep only the actors that should restart for when it will boot again.
100 // Then get rid of the others.
101 auto elm = remove_if(begin(actors_at_boot_), end(actors_at_boot_), [](const kernel::actor::ProcessArg* arg) {
102 if (arg->auto_restart)
107 actors_at_boot_.erase(elm, end(actors_at_boot_));
110 std::vector<s4u::ActorPtr> HostImpl::get_all_actors()
112 std::vector<s4u::ActorPtr> res;
113 for (auto& actor : actor_list_)
114 res.emplace_back(actor.get_ciface());
117 size_t HostImpl::get_actor_count() const
119 return actor_list_.size();
122 std::vector<s4u::Disk*> HostImpl::get_disks() const
124 std::vector<s4u::Disk*> disks;
125 for (auto const& d : disks_)
126 disks.push_back(d->get_iface());
130 void HostImpl::set_disks(const std::vector<kernel::resource::DiskImpl*>& disks, s4u::Host* host)
133 for (auto d : disks_)
137 void HostImpl::add_disk(const s4u::Disk* disk)
139 disks_.push_back(disk->get_impl());
142 void HostImpl::remove_disk(const std::string& disk_name)
144 auto position = disks_.begin();
145 for (auto const& d : disks_) {
146 if (d->get_name() == disk_name) {
147 disks_.erase(position);
154 } // namespace simgrid