-/* Copyright (c) 2015-2019. 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/Exception.hpp"
-#include "simgrid/s4u/Actor.hpp"
-#include "simgrid/vm.h"
-#include "src/include/surf/surf.hpp"
+#include <simgrid/Exception.hpp>
+#include <simgrid/kernel/routing/NetPoint.hpp>
+#include <simgrid/s4u/Actor.hpp>
+#include <simgrid/vm.h>
+
#include "src/plugins/vm/VirtualMachineImpl.hpp"
#include "src/plugins/vm/VmHostExt.hpp"
#include "src/surf/cpu_cas01.hpp"
namespace simgrid {
namespace s4u {
+simgrid::xbt::signal<void(VirtualMachine&)> VirtualMachine::on_creation;
simgrid::xbt::signal<void(VirtualMachine const&)> VirtualMachine::on_start;
simgrid::xbt::signal<void(VirtualMachine const&)> VirtualMachine::on_started;
simgrid::xbt::signal<void(VirtualMachine const&)> VirtualMachine::on_shutdown;
simgrid::xbt::signal<void(VirtualMachine const&)> VirtualMachine::on_resume;
simgrid::xbt::signal<void(VirtualMachine const&)> VirtualMachine::on_migration_start;
simgrid::xbt::signal<void(VirtualMachine const&)> VirtualMachine::on_migration_end;
+simgrid::xbt::signal<void(VirtualMachine const&)> 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 std::string& name, s4u::Host* physical_host, int core_amount, size_t ramsize)
- : Host(name), pimpl_vm_(new vm::VirtualMachineImpl(this, physical_host, core_amount, ramsize))
+ : Host(new vm::VirtualMachineImpl(name, this, physical_host, core_amount, ramsize))
+ , pimpl_vm_(dynamic_cast<vm::VirtualMachineImpl*>(Host::get_impl()))
{
XBT_DEBUG("Create VM %s", get_cname());
// Create a VCPU for this VM
std::vector<double> 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, core_amount);
+ 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 */
- set_netpoint(nullptr);
+ seal(); // seal this host
+ s4u::VirtualMachine::on_creation(*this);
}
void VirtualMachine::start()
{
on_start(*this);
- kernel::actor::simcall([this]() {
- vm::VmHostExt::ensureVmExtInstalled();
+ vm::VmHostExt::ensureVmExtInstalled();
+ kernel::actor::simcall([this]() {
Host* pm = this->pimpl_vm_->get_physical_host();
if (pm->extension<vm::VmHostExt>() == nullptr)
pm->extension_set(new vm::VmHostExt());
- long pm_ramsize = pm->extension<vm::VmHostExt>()->ramsize;
- int pm_overcommit = pm->extension<vm::VmHostExt>()->overcommit;
- long vm_ramsize = this->get_ramsize();
-
- if (pm_ramsize && not pm_overcommit) { /* Only verify that we don't overcommit on need */
+ size_t pm_ramsize = pm->extension<vm::VmHostExt>()->ramsize;
+ if (pm_ramsize && not pm->extension<vm::VmHostExt>()->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;
+ 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);
+ 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(), this->get_cname()));
+ pm->get_cname(), get_cname()));
}
}
-
- this->pimpl_vm_->set_state(VirtualMachine::state::RUNNING);
+ this->pimpl_vm_->set_state(State::RUNNING);
});
on_started(*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)
{
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 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
* 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)
{
kernel::actor::simcall([this, bound]() { pimpl_vm_->set_bound(bound); });
+ return this;
}
-} // namespace simgrid
} // namespace s4u
+} // namespace simgrid
/* **************************** Public C interface *************************** */
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();
}
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();
}
}
/** @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)
}
/** @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)
{
