VMHL13::VMHL13(VMModelPtr model, const char* name, xbt_dict_t props,
surf_resource_t host_PM)
: VM(model, name, props, NULL, NULL)
{
HostPtr sub_ws = static_cast<HostPtr>(surf_host_resource_priv(host_PM));
/* Currently, we assume a VM has no storage. */
p_storage = NULL;
/* Currently, a VM uses the network resource of its physical host. In
* host_lib, this network resource object is referred from two different keys.
* When deregistering the reference that points the network resource object
* from the VM name, we have to make sure that the system does not call the
* free callback for the network resource object. The network resource object
* is still used by the physical machine. */
p_netElm = new RoutingEdgeWrapper(static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, sub_ws->getName(), ROUTING_HOST_LEVEL)));
xbt_lib_set(host_lib, name, ROUTING_HOST_LEVEL, p_netElm);
p_subWs = sub_ws;
p_currentState = SURF_VM_STATE_CREATED;
// //// CPU RELATED STUFF ////
// Roughly, create a vcpu resource by using the values of the sub_cpu one.
CpuCas01Ptr sub_cpu = static_cast<CpuCas01Ptr>(surf_cpu_resource_priv(host_PM));
/* We can assume one core and cas01 cpu for the first step.
* Do xbt_lib_set(host_lib, name, SURF_CPU_LEVEL, cpu) if you get the resource. */
p_cpu = surf_cpu_model_vm->createCpu(name, // name
sub_cpu->getPowerPeakList(), // host->power_peak,
sub_cpu->getPState(),
1, // host->power_scale,
NULL, // host->power_trace,
1, // host->core_amount,
SURF_RESOURCE_ON, // host->initial_state,
NULL, // host->state_trace,
NULL); // host->properties,
/* We create cpu_action corresponding to a VM process on the host operating system. */
/* FIXME: TODO: we have to periodically input GUESTOS_NOISE to the system? how ? */
// vm_ws->cpu_action = surf_cpu_model_pm->extension.cpu.execute(host_PM, GUESTOS_NOISE);
p_action = sub_cpu->execute(0);
XBT_INFO("Create VM(%s)@PM(%s) with %ld mounted disks", name, sub_ws->getName(), xbt_dynar_length(p_storage));
}
/**
* \brief Returns a #xbt_dict_t consisting of the list of properties assigned to this workstation
*
* \param workstation a workstation
* \return the dictionary containing the properties associated with the workstation
*/
xbt_dict_t SD_workstation_get_properties(SD_workstation_t workstation)
{
return surf_host_get_properties(surf_host_resource_priv(workstation));
}
/*
* Update the physical host of the given VM
*/
void VMHL13::migrate(surf_resource_t ind_dst_pm)
{
/* ind_dst_pm equals to smx_host_t */
HostPtr ws_dst = static_cast<HostPtr>(surf_host_resource_priv(ind_dst_pm));
const char *vm_name = getName();
const char *pm_name_src = p_subWs->getName();
const char *pm_name_dst = ws_dst->getName();
xbt_assert(ws_dst);
/* do something */
/* update net_elm with that of the destination physical host */
RoutingEdgePtr old_net_elm = p_netElm;
RoutingEdgePtr new_net_elm = new RoutingEdgeWrapper(static_cast<RoutingEdgePtr>(xbt_lib_get_or_null(host_lib, pm_name_dst, ROUTING_HOST_LEVEL)));
xbt_assert(new_net_elm);
/* Unregister the current net_elm from host_lib. Do not call the free callback. */
xbt_lib_unset(host_lib, vm_name, ROUTING_HOST_LEVEL, 0);
/* Then, resister the new one. */
p_netElm = new_net_elm;
xbt_lib_set(host_lib, vm_name, ROUTING_HOST_LEVEL, p_netElm);
p_subWs = ws_dst;
/* Update vcpu's action for the new pm */
{
#if 0
XBT_INFO("cpu_action->remains %g", p_action->remains);
XBT_INFO("cost %f remains %f start %f finish %f", p_action->cost,
p_action->remains,
p_action->start,
p_action->finish
);
XBT_INFO("cpu_action state %d", surf_action_get_state(p_action));
#endif
/* create a cpu action bound to the pm model at the destination. */
CpuActionPtr new_cpu_action = static_cast<CpuActionPtr>(
static_cast<CpuPtr>(surf_cpu_resource_priv(ind_dst_pm))->execute(0));
e_surf_action_state_t state = p_action->getState();
if (state != SURF_ACTION_DONE)
XBT_CRITICAL("FIXME: may need a proper handling, %d", state);
if (p_action->getRemainsNoUpdate() > 0)
XBT_CRITICAL("FIXME: need copy the state(?), %f", p_action->getRemainsNoUpdate());
/* keep the bound value of the cpu action of the VM. */
double old_bound = p_action->getBound();
if (old_bound != 0) {
XBT_DEBUG("migrate VM(%s): set bound (%f) at %s", vm_name, old_bound, pm_name_dst);
new_cpu_action->setBound(old_bound);
}
_XBT_GNUC_UNUSED int ret = p_action->unref();
xbt_assert(ret == 1, "Bug: some resource still remains");
p_action = new_cpu_action;
}
XBT_DEBUG("migrate VM(%s): change net_elm (%p to %p)", vm_name, old_net_elm, new_net_elm);
XBT_DEBUG("migrate VM(%s): change PM (%s to %s)", vm_name, pm_name_src, pm_name_dst);
delete old_net_elm;
}