surf_callback(void, CpuPtr, e_surf_resource_state_t, e_surf_resource_state_t) cpuStateChangedCallbacks;
surf_callback(void, CpuActionPtr, e_surf_action_state_t, e_surf_action_state_t) cpuActionStateChangedCallbacks;
surf_callback(void, CpuPtr, e_surf_resource_state_t, e_surf_resource_state_t) cpuStateChangedCallbacks;
surf_callback(void, CpuActionPtr, e_surf_action_state_t, e_surf_action_state_t) cpuActionStateChangedCallbacks;