/*
* \brief Destroys a host (internal call only)
*/
void __MSG_host_destroy(msg_host_t host)
{
const char *name = MSG_host_get_name(host);
/* TODO:
* What happens if VMs still remain on this host?
* Revisit here after the surf layer gets stable.
**/
xbt_lib_unset(host_lib, name, MSG_HOST_LEVEL, 1);
}
/** \ingroup msg_file_management
* \brief Close the file
*
* \param fd is the file to close
* \return 0 on success or 1 on error
*/
int MSG_file_close(msg_file_t fd)
{
char *name;
msg_file_priv_t priv = MSG_file_priv(fd);
if (priv->data)
xbt_free(priv->data);
int res = simcall_file_close(priv->simdata->smx_file, MSG_host_self());
name = bprintf("%s:%i:%s",MSG_host_get_name(MSG_host_self()),MSG_process_self_PID(),priv->fullpath);
xbt_lib_unset(file_lib, name, MSG_FILE_LEVEL, 1);
xbt_free(name);
return res;
}
/*
* 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;
}