515 typedef struct heap_t heap_t;  typedef
666 struct heap_t {  struct
688   heap_t *next_heap;  argument
690   heap_t *next_orphan;  argument
696   heap_t *master_heap;  argument
699   span_large_cache_t span_large_cache[LARGE_CLASS_COUNT - 1];
705   span_t *full_span[SIZE_CLASS_COUNT];
707   span_t *large_huge_span;
711   span_use_t span_use[LARGE_CLASS_COUNT];
715   size_class_use_t size_class_use[SIZE_CLASS_COUNT + 1];
717   atomic64_t thread_to_global;
719   atomic64_t global_to_thread;