+++ /dev/null
-/* Copyright (c) 2013-2022. The SimGrid Team. All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include <simgrid/kernel/routing/NetPoint.hpp>
-#include <simgrid/s4u/Engine.hpp>
-#include <simgrid/s4u/Host.hpp>
-
-#include "src/kernel/EngineImpl.hpp"
-#include "src/kernel/resource/VirtualMachineImpl.hpp"
-
-#include <string>
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(res_host, ker_resource, "Host resources agregate CPU, networking and I/O features");
-
-/*************
- * Callbacks *t
- *************/
-
-namespace simgrid {
-namespace kernel {
-namespace resource {
-
-/*********
- * Model *
- *********/
-/************
- * Resource *
- ************/
-HostImpl::HostImpl(const std::string& name) : piface_(this), name_(name)
-{
- xbt_assert(s4u::Host::by_name_or_null(name_) == nullptr, "Refusing to create a second host named '%s'.", get_cname());
-}
-
-HostImpl::~HostImpl()
-{
- /* All actors should be gone when the host is turned off (by the end of the simulation). */
- if (not actor_list_.empty()) {
- std::string msg = "Shutting down host, but it's not empty:";
- for (auto const& actor : actor_list_)
- msg += "\n\t" + std::string(actor.get_name());
-
- EngineImpl::get_instance()->display_all_actor_status();
- xbt_die("%s", msg.c_str());
- }
- for (auto const& arg : actors_at_boot_)
- delete arg;
- actors_at_boot_.clear();
-
- for (auto const& d : disks_)
- d.second->destroy();
-
- for (auto const& vm : vms_)
- vm.second->vm_destroy();
-}
-
-/** @brief Fire the required callbacks and destroy the object
- *
- * Don't delete directly a Host, call h->destroy() instead.
- */
-void HostImpl::destroy()
-{
- s4u::Host::on_destruction(*this->get_iface());
- delete this;
-}
-
-/** Re-starts all the actors that are marked as restartable.
- *
- * Weird things will happen if you turn on a host that is already on. S4U is fool-proof, not this.
- */
-void HostImpl::turn_on() const
-{
- for (auto const& arg : actors_at_boot_) {
- XBT_DEBUG("Booting Actor %s(%s) right now", arg->name.c_str(), arg->host->get_cname());
- actor::ActorImplPtr actor = actor::ActorImpl::create(arg);
- }
-}
-
-/** Kill all actors hosted here */
-void HostImpl::turn_off(const actor::ActorImpl* issuer)
-{
- /* turn_off VMs running on host */
- for (const auto& kv : vms_) {
- // call s4u functions to generate the good on_state_change signal, maybe one day this wont be necessary
- kv.second->get_iface()->shutdown();
- kv.second->get_iface()->turn_off();
- }
- for (auto& actor : actor_list_) {
- XBT_DEBUG("Killing Actor %s@%s on behalf of %s which turned off that host.", actor.get_cname(),
- actor.get_host()->get_cname(), issuer->get_cname());
- issuer->kill(&actor);
- }
- for (const auto& activity : EngineImpl::get_instance()->get_maestro()->activities_) {
- auto* exec = dynamic_cast<activity::ExecImpl*>(activity.get());
- if (exec != nullptr) {
- auto hosts = exec->get_hosts();
- if (std::find(hosts.begin(), hosts.end(), &piface_) != hosts.end()) {
- exec->cancel();
- exec->set_state(activity::State::FAILED);
- }
- }
- }
- // When a host is turned off, we want to keep only the actors that should restart for when it will boot again.
- // Then get rid of the others.
- auto elm = remove_if(begin(actors_at_boot_), end(actors_at_boot_), [](const actor::ProcessArg* arg) {
- if (arg->auto_restart)
- return false;
- delete arg;
- return true;
- });
- actors_at_boot_.erase(elm, end(actors_at_boot_));
-}
-
-HostImpl* HostImpl::set_englobing_zone(routing::NetZoneImpl* englobing_zone)
-{
- englobing_zone_ = englobing_zone;
- return this;
-}
-
-std::vector<s4u::ActorPtr> HostImpl::get_all_actors()
-{
- std::vector<s4u::ActorPtr> res;
- for (auto& actor : actor_list_)
- res.emplace_back(actor.get_ciface());
- return res;
-}
-size_t HostImpl::get_actor_count() const
-{
- return actor_list_.size();
-}
-
-std::vector<s4u::Disk*> HostImpl::get_disks() const
-{
- std::vector<s4u::Disk*> disks;
- for (auto const& d : disks_)
- disks.push_back(d.second->get_iface());
- return disks;
-}
-
-s4u::VirtualMachine* HostImpl::create_vm(const std::string& name, int core_amount, size_t ramsize)
-{
- auto* vm = new s4u::VirtualMachine(name, get_iface(), core_amount, ramsize);
- vms_[name] = vm->get_vm_impl();
-
- // Create a VCPU for this VM
- std::vector<double> speeds;
- for (unsigned long i = 0; i < get_iface()->get_pstate_count(); i++)
- speeds.push_back(get_iface()->get_pstate_speed(i));
-
- auto* cpu = englobing_zone_->get_cpu_vm_model()->create_cpu(vm, speeds)->set_core_count(core_amount);
-
- if (get_iface()->get_pstate() != 0)
- cpu->set_pstate(get_iface()->get_pstate());
-
- cpu->seal();
-
- /* Currently, a VM uses the network resource of its physical host */
- vm->set_netpoint(get_iface()->get_netpoint());
-
- vm->seal();
-
- return vm;
-}
-
-void HostImpl::move_vm(VirtualMachineImpl* vm, HostImpl* destination)
-{
- xbt_assert(vm && destination);
-
- vms_.erase(vm->get_name());
- destination->vms_[vm->get_name()] = vm;
-}
-
-void HostImpl::destroy_vm(const std::string& name)
-{
- auto* vm = vms_[name];
- vms_.erase(name);
- vm->vm_destroy();
-}
-
-VirtualMachineImpl* HostImpl::get_vm_by_name_or_null(const std::string& name) const
-{
- auto vm_it = vms_.find(name);
- if (vm_it != vms_.end())
- return vm_it->second;
- return nullptr;
-}
-
-std::vector<s4u::VirtualMachine*> HostImpl::get_vms() const
-{
- std::vector<s4u::VirtualMachine*> vms;
- for (const auto& kv : vms_) {
- vms.push_back(kv.second->get_iface());
- }
- return vms;
-}
-
-s4u::Disk* HostImpl::create_disk(const std::string& name, double read_bandwidth, double write_bandwidth)
-{
- auto disk = piface_.get_netpoint()->get_englobing_zone()->get_disk_model()->create_disk(name, read_bandwidth,
- write_bandwidth);
- return disk->set_host(&piface_)->get_iface();
-}
-
-void HostImpl::add_disk(const s4u::Disk* disk)
-{
- disks_[disk->get_name()] = disk->get_impl();
-}
-
-void HostImpl::remove_disk(const std::string& name)
-{
- disks_.erase(name);
-}
-
-void HostImpl::seal()
-{
- if (sealed_) {
- return;
- }
- // seals host's CPU
- get_iface()->get_cpu()->seal();
- sealed_ = true;
-
- /* seal its disks */
- for (auto const& disk : disks_)
- disk.second->seal();
-
- /* seal its VMs */
- for (auto const& vm : vms_)
- vm.second->seal();
-}
-} // namespace resource
-} // namespace kernel
-} // namespace simgrid
