-/*************
- * Callbacks *
- *************/
-
-/** @ingroup SURF_callbacks
- * @brief Callbacks fired after Host creation. Signature: `void(Host*)`
- */
-XBT_PUBLIC_DATA(simgrid::surf::signal<void(Host*)>) hostCreatedCallbacks;
-
-/** @ingroup SURF_callbacks
- * @brief Callbacks fired Host destruction. Signature: `void(Host*)`
- */
-XBT_PUBLIC_DATA(simgrid::surf::signal<void(Host*)>) hostDestructedCallbacks;
-
-/** @ingroup SURF_callbacks
- * @brief Callbacks fired after Host State changed. Signature: `void(Host *, e_surf_resource_state_t old, e_surf_resource_state_t current)`
- */
-XBT_PUBLIC_DATA(simgrid::surf::signal<void(Host*, e_surf_resource_state_t, e_surf_resource_state_t)>) hostStateChangedCallbacks;
-
-/** @ingroup SURF_callbacks
- * @brief Callbacks fired HostAction State changed. Signature: `void(HostAction *, e_surf_action_state_t old, e_surf_action_state_t current)`
- */
-XBT_PUBLIC_DATA(simgrid::surf::signal<void(HostAction*, e_surf_action_state_t, e_surf_action_state_t)>) hostActionStateChangedCallbacks;