-/** @ingroup SURF_callbacks
- * @brief Callbacks handler which emit the callbacks after NetworkLink destruction
- * @details Callback functions have the following signature: `void(NetworkLinkPtr)`
- */
-XBT_PUBLIC_DATA( surf_callback(void, NetworkLinkPtr)) networkLinkDestructedCallbacks;
-
-/** @ingroup SURF_callbacks
- * @brief Callbacks handler which emit the callbacks after NetworkLink State changed
- * @details Callback functions have the following signature: `void(NetworkLinkActionPtr action, e_surf_resource_state_t old, e_surf_resource_state_t current)`
- */
-XBT_PUBLIC_DATA( surf_callback(void, NetworkLinkPtr, e_surf_resource_state_t, e_surf_resource_state_t)) networkLinkStateChangedCallbacks;
+/** @brief Callback signal fired when the state of a NetworkAction changes
+ * Signature: `void(NetworkAction *action, e_surf_action_state_t old, e_surf_action_state_t current)` */
+XBT_PUBLIC_DATA(simgrid::xbt::signal<void(simgrid::surf::NetworkAction*, e_surf_action_state_t, e_surf_action_state_t)>) networkActionStateChangedCallbacks;