-simgrid::xbt::FacetLevel<simgrid::Host, Host> Host::LEVEL;
-
-surf_callback(void, simgrid::surf::Host*) hostCreatedCallbacks;
-surf_callback(void, simgrid::surf::Host*) hostDestructedCallbacks;
-surf_callback(void, simgrid::surf::Host*, e_surf_resource_state_t, e_surf_resource_state_t) hostStateChangedCallbacks;
-surf_callback(void, simgrid::surf::HostAction*, e_surf_action_state_t, e_surf_action_state_t) hostActionStateChangedCallbacks;