void heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat);
void heapRemove(xbt_heap_t heap);
void heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat);
void heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat);
void heapRemove(xbt_heap_t heap);
void heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat);