*/
void MSG_vm_start(msg_vm_t vm)
{
- simgrid::simix::kernelImmediate([vm]() {
- simgrid::vm::VmHostExt::ensureVmExtInstalled();
-
- simgrid::s4u::Host* pm = vm->pimpl_vm_->getPm();
- if (pm->extension<simgrid::vm::VmHostExt>() == nullptr)
- pm->extension_set(new simgrid::vm::VmHostExt());
-
- long pm_ramsize = pm->extension<simgrid::vm::VmHostExt>()->ramsize;
- int pm_overcommit = pm->extension<simgrid::vm::VmHostExt>()->overcommit;
- long vm_ramsize = vm->getRamsize();
-
- if (pm_ramsize && not pm_overcommit) { /* Only verify that we don't overcommit on need */
- /* 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* ws_vm : simgrid::vm::VirtualMachineImpl::allVms_)
- if (pm == ws_vm->pimpl_vm_->getPm())
- total_ramsize_of_vms += ws_vm->pimpl_vm_->getRamsize();
-
- if (vm_ramsize > pm_ramsize - total_ramsize_of_vms) {
- XBT_WARN("cannnot start %s@%s due to memory shortage: vm_ramsize %ld, free %ld, pm_ramsize %ld (bytes).",
- vm->getCname(), pm->getCname(), 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->getCname(), vm->getCname());
- }
- }
-
- vm->pimpl_vm_->setState(SURF_VM_STATE_RUNNING);
- });
-
+ vm->start();
if (TRACE_msg_vm_is_enabled()) {
container_t vm_container = PJ_container_get(vm->getCname());
type_t type = PJ_type_get("MSG_VM_STATE", vm_container->type);
*/
void MSG_vm_shutdown(msg_vm_t vm)
{
- smx_actor_t issuer=SIMIX_process_self();
+ smx_actor_t issuer = SIMIX_process_self();
simgrid::simix::kernelImmediate([vm, issuer]() { vm->pimpl_vm_->shutdown(issuer); });
- // Make sure that the processes in the VM are killed in this scheduling round before processing
- // (eg with the VM destroy)
+ // Make sure that processes in the VM are killed in this scheduling round before processing (eg with the VM destroy)
MSG_process_sleep(0.);
}
-static inline char *get_mig_process_tx_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm)
+static std::string get_mig_process_tx_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm)
{
- return bprintf("__pr_mig_tx:%s(%s-%s)", vm->getCname(), src_pm->getCname(), dst_pm->getCname());
+ return std::string("__pr_mig_tx:") + vm->getCname() + "(" + src_pm->getCname() + "-" + dst_pm->getCname() + ")";
}
-static inline char *get_mig_process_rx_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm)
+static std::string get_mig_process_rx_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm)
{
- return bprintf("__pr_mig_rx:%s(%s-%s)", vm->getCname(), src_pm->getCname(), dst_pm->getCname());
+ return std::string("__pr_mig_rx:") + vm->getCname() + "(" + src_pm->getCname() + "-" + dst_pm->getCname() + ")";
}
-static inline char *get_mig_task_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm, int stage)
+static std::string get_mig_task_name(msg_vm_t vm, msg_host_t src_pm, msg_host_t dst_pm, int stage)
{
- return bprintf("__task_mig_stage%d:%s(%s-%s)", stage, vm->getCname(), src_pm->getCname(), dst_pm->getCname());
+ return std::string("__task_mig_stage") + std::to_string(stage) + ":" + vm->getCname() + "(" + src_pm->getCname() +
+ "-" + dst_pm->getCname() + ")";
}
struct migration_session {
bool received_finalize = false;
- char *finalize_task_name = get_mig_task_name(ms->vm, ms->src_pm, ms->dst_pm, 3);
+ std::string finalize_task_name = get_mig_task_name(ms->vm, ms->src_pm, ms->dst_pm, 3);
while (not received_finalize) {
msg_task_t task = nullptr;
int ret = MSG_task_recv(&task, ms->mbox);
if (ret != MSG_OK) {
// An error occurred, clean the code and return
// The owner did not change, hence the task should be only destroyed on the other side
- xbt_free(finalize_task_name);
return 0;
}
- if (strcmp(task->name, finalize_task_name) == 0)
+ if (finalize_task_name == task->name)
received_finalize = 1;
MSG_task_destroy(task);
}
- xbt_free(finalize_task_name);
// Here Stage 1, 2 and 3 have been performed.
// Hence complete the migration
}
// Inform the SRC that the migration has been correctly performed
- char *task_name = get_mig_task_name(ms->vm, ms->src_pm, ms->dst_pm, 4);
- msg_task_t task = MSG_task_create(task_name, 0, 0, nullptr);
+ std::string task_name = get_mig_task_name(ms->vm, ms->src_pm, ms->dst_pm, 4);
+ msg_task_t task = MSG_task_create(task_name.c_str(), 0, 0, nullptr);
msg_error_t ret = MSG_task_send(task, ms->mbox_ctl);
// xbt_assert(ret == MSG_OK);
if(ret == MSG_HOST_FAILURE){
// The SRC has crashed, this is not a problem has the VM has been correctly migrated on the DST node
MSG_task_destroy(task);
}
- xbt_free(task_name);
XBT_DEBUG("mig: rx_done");
return 0;
int stage, int stage2_round, double mig_speed, double timeout)
{
sg_size_t sent = 0;
- char *task_name = get_mig_task_name(vm, src_pm, dst_pm, stage);
- msg_task_t task = MSG_task_create(task_name, 0, static_cast<double>(size), nullptr);
+ std::string task_name = get_mig_task_name(vm, src_pm, dst_pm, stage);
+ msg_task_t task = MSG_task_create(task_name.c_str(), 0, static_cast<double>(size), nullptr);
double clock_sta = MSG_get_clock();
else
ret = MSG_task_send(task, mbox);
- xbt_free(task_name);
-
if (ret == MSG_OK) {
sent = size;
} else if (ret == MSG_TIMEOUT) {
ms->mbox_ctl = bprintf("__mbox_mig_ctl:%s(%s-%s)", vm->getCname(), src_pm->getCname(), dst_pm->getCname());
ms->mbox = bprintf("__mbox_mig_src_dst:%s(%s-%s)", vm->getCname(), src_pm->getCname(), dst_pm->getCname());
- char *pr_rx_name = get_mig_process_rx_name(vm, src_pm, dst_pm);
- char *pr_tx_name = get_mig_process_tx_name(vm, src_pm, dst_pm);
+ std::string pr_rx_name = get_mig_process_rx_name(vm, src_pm, dst_pm);
+ std::string pr_tx_name = get_mig_process_tx_name(vm, src_pm, dst_pm);
- MSG_process_create(pr_rx_name, migration_rx_fun, ms, dst_pm);
+ MSG_process_create(pr_rx_name.c_str(), migration_rx_fun, ms, dst_pm);
- MSG_process_create(pr_tx_name, migration_tx_fun, ms, src_pm);
+ MSG_process_create(pr_tx_name.c_str(), migration_tx_fun, ms, src_pm);
/* wait until the migration have finished or on error has occurred */
XBT_DEBUG("wait for reception of the final ACK (i.e. migration has been correctly performed");
vm->getCname());
}
- char* expected_task_name = get_mig_task_name(vm, src_pm, dst_pm, 4);
- xbt_assert(strcmp(task->name, expected_task_name) == 0);
- xbt_free(expected_task_name);
+ xbt_assert(get_mig_task_name(vm, src_pm, dst_pm, 4) == task->name);
MSG_task_destroy(task);
}
