X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/67fe7b9d6c00b390a8598bc1e72d42d8343cb218..1f5cc4e090af49a98da0e25e9ee21a8ce6ce30f8:/src/plugins/vm/s4u_VirtualMachine.cpp diff --git a/src/plugins/vm/s4u_VirtualMachine.cpp b/src/plugins/vm/s4u_VirtualMachine.cpp index 6f0dbe580b..a61da7cdb9 100644 --- a/src/plugins/vm/s4u_VirtualMachine.cpp +++ b/src/plugins/vm/s4u_VirtualMachine.cpp @@ -1,93 +1,92 @@ -/* Copyright (c) 2015-2018. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2015-2021. 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/s4u/Actor.hpp" -#include "simgrid/vm.h" -#include "src/include/surf/surf.hpp" +#include +#include +#include +#include + #include "src/plugins/vm/VirtualMachineImpl.hpp" #include "src/plugins/vm/VmHostExt.hpp" -#include "src/simix/smx_host_private.hpp" #include "src/surf/cpu_cas01.hpp" -XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_vm, "S4U virtual machines"); - +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_vm, s4u, "S4U virtual machines"); namespace simgrid { namespace s4u { -simgrid::xbt::signal VirtualMachine::on_start; -simgrid::xbt::signal VirtualMachine::on_started; -simgrid::xbt::signal VirtualMachine::on_shutdown; -simgrid::xbt::signal VirtualMachine::on_suspend; -simgrid::xbt::signal VirtualMachine::on_resume; -simgrid::xbt::signal VirtualMachine::on_migration_start; -simgrid::xbt::signal VirtualMachine::on_migration_end; - -VirtualMachine::VirtualMachine(const char* name, s4u::Host* physical_host, int core_amount) +simgrid::xbt::signal VirtualMachine::on_creation; +simgrid::xbt::signal VirtualMachine::on_start; +simgrid::xbt::signal VirtualMachine::on_started; +simgrid::xbt::signal VirtualMachine::on_shutdown; +simgrid::xbt::signal VirtualMachine::on_suspend; +simgrid::xbt::signal VirtualMachine::on_resume; +simgrid::xbt::signal VirtualMachine::on_migration_start; +simgrid::xbt::signal VirtualMachine::on_migration_end; +simgrid::xbt::signal VirtualMachine::on_destruction; + +VirtualMachine::VirtualMachine(const std::string& name, s4u::Host* physical_host, int core_amount) : VirtualMachine(name, physical_host, core_amount, 1024) { } -VirtualMachine::VirtualMachine(const char* name, s4u::Host* physical_host, int core_amount, size_t ramsize) - : Host(name), pimpl_vm_(new vm::VirtualMachineImpl(this, physical_host, core_amount, ramsize)) +VirtualMachine::VirtualMachine(const std::string& name, s4u::Host* physical_host, int core_amount, size_t ramsize) + : Host(new vm::VirtualMachineImpl(name, this, physical_host, core_amount, ramsize)) + , pimpl_vm_(dynamic_cast(Host::get_impl())) { - XBT_DEBUG("Create VM %s", name); + XBT_DEBUG("Create VM %s", get_cname()); /* Currently, a VM uses the network resource of its physical host */ - pimpl_netpoint = physical_host->pimpl_netpoint; + set_netpoint(physical_host->get_netpoint()); // Create a VCPU for this VM std::vector speeds; - for (int i = 0; i < physical_host->get_pstate_count(); i++) + for (unsigned long i = 0; i < physical_host->get_pstate_count(); i++) speeds.push_back(physical_host->get_pstate_speed(i)); - surf_cpu_model_vm->create_cpu(this, &speeds, physical_host->get_core_count()); + physical_host->get_netpoint() + ->get_englobing_zone() + ->get_cpu_vm_model() + ->create_cpu(this, speeds) + ->set_core_count(core_amount) + ->seal(); + if (physical_host->get_pstate() != 0) set_pstate(physical_host->get_pstate()); -} -VirtualMachine::~VirtualMachine() -{ - on_destruction(*this); - - XBT_DEBUG("destroy %s", get_cname()); - - /* Don't free these things twice: they are the ones of my physical host */ - pimpl_netpoint = nullptr; + seal(); // seal this host + s4u::VirtualMachine::on_creation(*this); } void VirtualMachine::start() { on_start(*this); - simgrid::simix::simcall([this]() { - simgrid::vm::VmHostExt::ensureVmExtInstalled(); - - simgrid::s4u::Host* pm = this->pimpl_vm_->get_physical_host(); - if (pm->extension() == nullptr) - pm->extension_set(new simgrid::vm::VmHostExt()); + vm::VmHostExt::ensureVmExtInstalled(); - long pm_ramsize = pm->extension()->ramsize; - int pm_overcommit = pm->extension()->overcommit; - long vm_ramsize = this->get_ramsize(); + kernel::actor::simcall([this]() { + Host* pm = this->pimpl_vm_->get_physical_host(); + if (pm->extension() == nullptr) + pm->extension_set(new vm::VmHostExt()); - if (pm_ramsize && not pm_overcommit) { /* Only verify that we don't overcommit on need */ + size_t pm_ramsize = pm->extension()->ramsize; + if (pm_ramsize && not pm->extension()->overcommit) { /* Need to verify that we don't overcommit */ /* Retrieve the memory occupied by the VMs on that host. Yep, we have to traverse all VMs of all hosts for that */ - long total_ramsize_of_vms = 0; - for (simgrid::s4u::VirtualMachine* const& ws_vm : simgrid::vm::VirtualMachineImpl::allVms_) + size_t total_ramsize_of_vms = 0; + for (VirtualMachine* const& ws_vm : vm::VirtualMachineImpl::allVms_) if (pm == ws_vm->get_pm()) total_ramsize_of_vms += ws_vm->get_ramsize(); - if (vm_ramsize > pm_ramsize - total_ramsize_of_vms) { - XBT_WARN("cannot start %s@%s due to memory shortage: vm_ramsize %ld, free %ld, pm_ramsize %ld (bytes).", - this->get_cname(), pm->get_cname(), vm_ramsize, pm_ramsize - total_ramsize_of_vms, pm_ramsize); - THROWF(vm_error, 0, "Memory shortage on host '%s', VM '%s' cannot be started", pm->get_cname(), - this->get_cname()); + if (total_ramsize_of_vms + get_ramsize() > pm_ramsize) { + XBT_WARN("cannot start %s@%s due to memory shortage: get_ramsize() %zu, free %zu, pm_ramsize %zu (bytes).", + get_cname(), pm->get_cname(), get_ramsize(), pm_ramsize - total_ramsize_of_vms, pm_ramsize); + throw VmFailureException(XBT_THROW_POINT, + xbt::string_printf("Memory shortage on host '%s', VM '%s' cannot be started", + pm->get_cname(), get_cname())); } } - - this->pimpl_vm_->set_state(VirtualMachine::state::RUNNING); + this->pimpl_vm_->set_state(State::RUNNING); }); on_started(*this); @@ -96,8 +95,8 @@ void VirtualMachine::start() void VirtualMachine::suspend() { on_suspend(*this); - smx_actor_t issuer = SIMIX_process_self(); - simgrid::simix::simcall([this, issuer]() { pimpl_vm_->suspend(issuer); }); + kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self(); + kernel::actor::simcall([this, issuer]() { pimpl_vm_->suspend(issuer); }); } void VirtualMachine::resume() @@ -108,43 +107,66 @@ void VirtualMachine::resume() void VirtualMachine::shutdown() { - smx_actor_t issuer = SIMIX_process_self(); - simgrid::simix::simcall([this, issuer]() { pimpl_vm_->shutdown(issuer); }); + kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self(); + kernel::actor::simcall([this, issuer]() { pimpl_vm_->shutdown(issuer); }); on_shutdown(*this); } void VirtualMachine::destroy() { - /* First, terminate all processes on the VM if necessary */ - shutdown(); - - /* Then, destroy the VM object */ - Host::destroy(); + auto destroy_code = [this]() { + /* First, terminate all processes on the VM if necessary */ + shutdown(); + + XBT_DEBUG("destroy %s", get_cname()); + + /* Then, destroy the VM object */ + kernel::actor::simcall([this]() { + get_vm_impl()->vm_destroy(); + get_impl()->destroy(); + + /* Don't free these things twice: they are the ones of my physical host */ + set_netpoint(nullptr); + delete this; + }); + }; + + if (not this_actor::is_maestro() && this_actor::get_host() == this) { + XBT_VERB("Launch another actor on physical host %s to destroy my own VM: %s", get_pm()->get_cname(), get_cname()); + simgrid::s4u::Actor::create(get_cname() + std::string("-vm_destroy"), get_pm(), destroy_code); + simgrid::s4u::this_actor::yield(); + XBT_CRITICAL("I should be dead now!"); + DIE_IMPOSSIBLE; + } + + destroy_code(); } -simgrid::s4u::Host* VirtualMachine::get_pm() +simgrid::s4u::Host* VirtualMachine::get_pm() const { return pimpl_vm_->get_physical_host(); } -void VirtualMachine::set_pm(simgrid::s4u::Host* pm) +VirtualMachine* VirtualMachine::set_pm(simgrid::s4u::Host* pm) { - simgrid::simix::simcall([this, pm]() { pimpl_vm_->set_physical_host(pm); }); + kernel::actor::simcall([this, pm]() { pimpl_vm_->set_physical_host(pm); }); + return this; } -VirtualMachine::state VirtualMachine::get_state() +VirtualMachine::State VirtualMachine::get_state() const { - return simgrid::simix::simcall([this]() { return pimpl_vm_->get_state(); }); + return kernel::actor::simcall([this]() { return pimpl_vm_->get_state(); }); } -size_t VirtualMachine::get_ramsize() +size_t VirtualMachine::get_ramsize() const { return pimpl_vm_->get_ramsize(); } -void VirtualMachine::set_ramsize(size_t ramsize) +VirtualMachine* VirtualMachine::set_ramsize(size_t ramsize) { pimpl_vm_->set_ramsize(ramsize); + return this; } /** @brief Set a CPU bound for a given VM. * @ingroup msg_VMs @@ -172,13 +194,14 @@ void VirtualMachine::set_ramsize(size_t ramsize) * 2. Note that bound == 0 means no bound (i.e., unlimited). But, if a host has multiple CPU cores, the CPU share of a * computation task (or a VM) never exceeds the capacity of a CPU core. */ -void VirtualMachine::set_bound(double bound) +VirtualMachine* VirtualMachine::set_bound(double bound) { - simgrid::simix::simcall([this, bound]() { pimpl_vm_->set_bound(bound); }); + kernel::actor::simcall([this, bound]() { pimpl_vm_->set_bound(bound); }); + return this; } -} // namespace simgrid } // namespace s4u +} // namespace simgrid /* **************************** Public C interface *************************** */ @@ -194,19 +217,16 @@ sg_vm_t sg_vm_create_core(sg_host_t pm, const char* name) */ sg_vm_t sg_vm_create_multicore(sg_host_t pm, const char* name, int coreAmount) { - xbt_assert(sg_host_by_name(name) == nullptr, - "Cannot create a VM named %s: this name is already used by an host or a VM", name); - return new simgrid::s4u::VirtualMachine(name, pm, coreAmount); } -const char* sg_vm_get_name(sg_vm_t vm) +const char* sg_vm_get_name(const_sg_vm_t vm) { return vm->get_cname(); } /** @brief Get the physical host of a given VM. */ -sg_host_t sg_vm_get_pm(sg_vm_t vm) +sg_host_t sg_vm_get_pm(const_sg_vm_t vm) { return vm->get_pm(); } @@ -216,7 +236,7 @@ void sg_vm_set_ramsize(sg_vm_t vm, size_t size) vm->set_ramsize(size); } -size_t sg_vm_get_ramsize(sg_vm_t vm) +size_t sg_vm_get_ramsize(const_sg_vm_t vm) { return vm->get_ramsize(); } @@ -227,21 +247,21 @@ void sg_vm_set_bound(sg_vm_t vm, double bound) } /** @brief Returns whether the given VM has just created, not running. */ -int sg_vm_is_created(sg_vm_t vm) +int sg_vm_is_created(const_sg_vm_t vm) { - return vm->get_state() == simgrid::s4u::VirtualMachine::state::CREATED; + return vm->get_state() == simgrid::s4u::VirtualMachine::State::CREATED; } /** @brief Returns whether the given VM is currently running */ -int sg_vm_is_running(sg_vm_t vm) +int sg_vm_is_running(const_sg_vm_t vm) { - return vm->get_state() == simgrid::s4u::VirtualMachine::state::RUNNING; + return vm->get_state() == simgrid::s4u::VirtualMachine::State::RUNNING; } /** @brief Returns whether the given VM is currently suspended, not running. */ -int sg_vm_is_suspended(sg_vm_t vm) +int sg_vm_is_suspended(const_sg_vm_t vm) { - return vm->get_state() == simgrid::s4u::VirtualMachine::state::SUSPENDED; + return vm->get_state() == simgrid::s4u::VirtualMachine::State::SUSPENDED; } /** @brief Start a vm (i.e., boot the guest operating system) @@ -273,9 +293,15 @@ void sg_vm_resume(sg_vm_t vm) } /** @brief Immediately kills all processes within the given VM. - * Any memory that they allocated will be leaked, unless you used #MSG_process_on_exit(). * - * No extra delay occurs. If you want to simulate this too, you want to use a #MSG_process_sleep(). + @beginrst + + The memory allocated by these actors is leaked, unless you used :cpp:func:`simgrid::s4u::Actor::on_exit`. + + @endrst + * + * No extra delay occurs by default. You may let your actor sleep by a specific amount to simulate any extra delay that + you want. */ void sg_vm_shutdown(sg_vm_t vm) {