function DoesXen($does)
{
$imageid = $this->imageid();
if ($does) {
$parentosinfo = OSinfo::LookupByName("emulab-ops", "XEN41-64-STD");
if (!$parentosinfo) {
return -1;
}
$parentosid = $parentosinfo->osid();
DBQueryFatal("update os_info set def_parentosid='{$parentosid}' " . "where osid='{$imageid}'");
DBQueryFatal("replace into os_submap set " . " osid='{$imageid}', parent_osid='{$parentosid}'");
DBQueryFatal("replace into osidtoimageid set " . " osid='{$imageid}', type='pcvm', imageid='{$imageid}'");
} else {
DBQueryFatal("delete from osidtoimageid " . "where osid='{$imageid}' and type='pcvm'");
DBQueryFatal("delete from os_submap " . "where osid='{$imageid}'");
DBQueryFatal("update os_info set def_parentosid=NULL " . "where osid='{$imageid}'");
}
return 0;
}
