+/** @ingroup SURF_callbacks
+ * @brief Callbacks handler which emit the callbacks after Storage destruction *
+ * @details Callback functions have the following signature: `void(StoragePtr)`
+ */
+XBT_PUBLIC_DATA(surf_callback(void, Storage*)) storageDestructedCallbacks;
+
+/** @ingroup SURF_callbacks
+ * @brief Callbacks handler which emit the callbacks after Storage State changed *
+ * @details Callback functions have the following signature: `void(StorageAction *action, e_surf_resource_state_t old, e_surf_resource_state_t current)`
+ */
+XBT_PUBLIC_DATA(surf_callback(void, Storage*, e_surf_resource_state_t, e_surf_resource_state_t)) storageStateChangedCallbacks;
+
+/** @ingroup SURF_callbacks
+ * @brief Callbacks handler which emit the callbacks after StorageAction State changed *
+ * @details Callback functions have the following signature: `void(StorageAction *action, e_surf_action_state_t old, e_surf_action_state_t current)`
+ */
+XBT_PUBLIC_DATA(surf_callback(void, StorageAction*, e_surf_action_state_t, e_surf_action_state_t)) storageActionStateChangedCallbacks;