30   typedef u32 IndexT;  typedef
32   IndexT cache[kSize];
40   typedef typename Cache::IndexT IndexT;  typedef
46     CHECK_GE(1ull << (sizeof(IndexT) * 8), kL1Size * kL2Size);  in DenseSlabAlloc()
48     CHECK_GE(sizeof(T), sizeof(IndexT));  in DenseSlabAlloc()
61   IndexT Alloc(Cache *c) {  in Alloc()
67   void Free(Cache *c, IndexT idx) {  in Free()
74   T *Map(IndexT idx) {  in Map()
83       IndexT idx = c->cache[--c->pos];  in FlushCache()
84       *(IndexT*)Map(idx) = freelist_;  in FlushCache()
97   IndexT freelist_;
109       IndexT start = fillpos_ == 0 ? 1 : 0;  in Refill()
110       for (IndexT i = start; i < kL2Size; i++) {  in Refill()
112         *(IndexT*)(batch + i) = i + 1 + fillpos_ * kL2Size;  in Refill()
114       *(IndexT*)(batch + kL2Size - 1) = 0;  in Refill()
119       IndexT idx = freelist_;  in Refill()
121       freelist_ = *(IndexT*)Map(idx);  in Refill()
128       IndexT idx = c->cache[--c->pos];  in Drain()
129       *(IndexT*)Map(idx) = freelist_;  in Drain()