171         struct Stats {  struct
174             size_t mSizeCached;
176             size_t mBuffersCached;
178             size_t mSizeInUse;
180             size_t mBuffersInUse;
183             size_t mTotalAllocations;
186             size_t mTotalRecycles;
188             size_t mTotalTransfers;
190             size_t mTotalFetches;
192             Stats()  in Stats()  function
197             size_t buffersNotInUse() const {  in buffersNotInUse()
203             void onBufferAllocated(size_t allocSize) {  in onBufferAllocated()
214             void onBufferEvicted(size_t allocSize) {  in onBufferEvicted()
220             void onBufferRecycled(size_t allocSize) {  in onBufferRecycled()
229             void onBufferUnused(size_t allocSize) {  in onBufferUnused()
235             void onBufferSent() {  in onBufferSent()
240             void onBufferFetched() {  in onBufferFetched()