int surf_action_is_suspended(surf_action_t action);
void surf_action_set_max_duration(surf_action_t action, double duration);
void surf_action_set_priority(surf_action_t action, double priority);
int surf_action_is_suspended(surf_action_t action);
void surf_action_set_max_duration(surf_action_t action, double duration);
void surf_action_set_priority(surf_action_t action, double priority);