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/kernel/routing/NetPoint.hpp"
7 #include "simgrid/s4u/Engine.hpp"
8 #include "simgrid/s4u/Host.hpp"
9 #include "src/plugins/vm/VirtualMachineImpl.hpp"
10 #include "src/simix/smx_private.hpp"
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(res_host, ker_resource, "Host resources agregate CPU, networking and I/O features");
29 HostImpl::HostImpl(const std::string& name, s4u::Host* piface) : piface_(this), name_(name)
31 xbt_assert(s4u::Host::by_name_or_null(name_) == nullptr, "Refusing to create a second host named '%s'.", get_cname());
32 s4u::Engine::get_instance()->host_register(name_, piface);
35 HostImpl::HostImpl(const std::string& name) : piface_(this), name_(name)
37 xbt_assert(s4u::Host::by_name_or_null(name_) == nullptr, "Refusing to create a second host named '%s'.", get_cname());
38 s4u::Engine::get_instance()->host_register(name_, &piface_);
43 /* All actors should be gone when the host is turned off (by the end of the simulation). */
44 if (not actor_list_.empty()) {
45 std::string msg = "Shutting down host, but it's not empty:";
46 for (auto const& actor : actor_list_)
47 msg += "\n\t" + std::string(actor.get_name());
49 simix_global->display_all_actor_status();
50 xbt_die("%s", msg.c_str());
52 for (auto const& arg : actors_at_boot_)
54 actors_at_boot_.clear();
56 for (auto const& d : disks_)
60 /** @brief Fire the required callbacks and destroy the object
62 * Don't delete directly a Host, call h->destroy() instead.
64 void HostImpl::destroy()
66 s4u::Host::on_destruction(*this->get_iface());
67 s4u::Engine::get_instance()->host_unregister(std::string(name_));
71 /** Re-starts all the actors that are marked as restartable.
73 * Weird things will happen if you turn on a host that is already on. S4U is fool-proof, not this.
75 void HostImpl::turn_on() const
77 for (auto const& arg : actors_at_boot_) {
78 XBT_DEBUG("Booting Actor %s(%s) right now", arg->name.c_str(), arg->host->get_cname());
79 simgrid::kernel::actor::ActorImplPtr actor =
80 simgrid::kernel::actor::ActorImpl::create(arg->name, arg->code, nullptr, arg->host, nullptr);
81 actor->set_properties(arg->properties);
83 *actor->on_exit = *arg->on_exit;
84 if (arg->kill_time >= 0)
85 actor->set_kill_time(arg->kill_time);
86 if (arg->auto_restart)
87 actor->set_auto_restart(arg->auto_restart);
93 /** Kill all actors hosted here */
94 void HostImpl::turn_off(const kernel::actor::ActorImpl* issuer)
96 for (auto& actor : actor_list_) {
97 XBT_DEBUG("Killing Actor %s@%s on behalf of %s which turned off that host.", actor.get_cname(),
98 actor.get_host()->get_cname(), issuer->get_cname());
101 // When a host is turned off, we want to keep only the actors that should restart for when it will boot again.
102 // Then get rid of the others.
103 auto elm = remove_if(begin(actors_at_boot_), end(actors_at_boot_), [](const kernel::actor::ProcessArg* arg) {
104 if (arg->auto_restart)
109 actors_at_boot_.erase(elm, end(actors_at_boot_));
112 std::vector<s4u::ActorPtr> HostImpl::get_all_actors()
114 std::vector<s4u::ActorPtr> res;
115 for (auto& actor : actor_list_)
116 res.emplace_back(actor.get_ciface());
119 size_t HostImpl::get_actor_count() const
121 return actor_list_.size();
124 std::vector<s4u::Disk*> HostImpl::get_disks() const
126 std::vector<s4u::Disk*> disks;
127 for (auto const& d : disks_)
128 disks.push_back(d->get_iface());
132 HostImpl* HostImpl::set_disks(const std::vector<kernel::resource::DiskImpl*>& disks)
135 for (auto d : disks_)
136 d->set_host(&piface_);
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_.push_back(disk->get_impl());
152 void HostImpl::remove_disk(const std::string& disk_name)
154 auto position = disks_.begin();
155 for (auto const& d : disks_) {
156 if (d->get_name() == disk_name) {
157 disks_.erase(position);
164 void HostImpl::seal()
170 get_iface()->pimpl_cpu->seal();
174 } // namespace simgrid