273                 Deleter* deleter, Cache::Handle** handle,
280   bool Ref(Cache::Handle* handle) override;
281   bool Release(Cache::Handle* handle, bool force_erase = false) override;
308   bool Unref(CacheHandle* handle, bool set_usage, CleanupContext* context);
315   bool UnsetInCache(CacheHandle* handle, CleanupContext* context);
322   void RecycleHandle(CacheHandle* handle, CleanupContext* context);
387   for (auto& handle : list_) {  in ~ClockCacheShard()  local
388     uint32_t flags = handle.flags.load(std::memory_order_relaxed);  in ~ClockCacheShard()
390       if (handle.deleter != nullptr) {  in ~ClockCacheShard()
391         (*handle.deleter)(handle.key, handle.value);  in ~ClockCacheShard()
393       delete[] handle.key.data();  in ~ClockCacheShard()
411   for (auto& handle : list_) {  in ApplyToAllCacheEntries()  local
414     uint32_t flags = handle.flags.load(std::memory_order_relaxed);  in ApplyToAllCacheEntries()
416       callback(handle.value, handle.charge);  in ApplyToAllCacheEntries()
424 void ClockCacheShard::RecycleHandle(CacheHandle* handle,  in RecycleHandle()  argument
427   assert(!InCache(handle->flags) && CountRefs(handle->flags) == 0);  in RecycleHandle()
428   context->to_delete_key.push_back(handle->key.data());  in RecycleHandle()
429   context->to_delete_value.emplace_back(*handle);  in RecycleHandle()
430   size_t total_charge = handle->CalcTotalCharge(metadata_charge_policy_);  in RecycleHandle()
431   handle->key.clear();  in RecycleHandle()
432   handle->value = nullptr;  in RecycleHandle()
433   handle->deleter = nullptr;  in RecycleHandle()
434   recycle_.push_back(handle);  in RecycleHandle()
439   for (const CacheHandle& handle : context.to_delete_value) {  in Cleanup()  local
440     if (handle.deleter) {  in Cleanup()
441       (*handle.deleter)(handle.key, handle.value);  in Cleanup()
450   auto handle = reinterpret_cast<CacheHandle*>(h);  in Ref()  local
452   uint32_t flags = handle->flags.load(std::memory_order_relaxed);  in Ref()
456     if (handle->flags.compare_exchange_weak(flags, flags + kOneRef,  in Ref()
461         size_t total_charge = handle->CalcTotalCharge(metadata_charge_policy_);  in Ref()
470 bool ClockCacheShard::Unref(CacheHandle* handle, bool set_usage,  in Unref()  argument
473     handle->flags.fetch_or(kUsageBit, std::memory_order_relaxed);  in Unref()
478   uint32_t flags = handle->flags.fetch_sub(kOneRef, std::memory_order_acq_rel);  in Unref()
482     size_t total_charge = handle->CalcTotalCharge(metadata_charge_policy_);  in Unref()
487       RecycleHandle(handle, context);  in Unref()
493 bool ClockCacheShard::UnsetInCache(CacheHandle* handle,  in UnsetInCache()  argument
500       handle->flags.fetch_and(~kInCacheBit, std::memory_order_acq_rel);  in UnsetInCache()
503     RecycleHandle(handle, context);  in UnsetInCache()
508 bool ClockCacheShard::TryEvict(CacheHandle* handle, CleanupContext* context) {  in TryEvict()  argument
511   if (handle->flags.compare_exchange_strong(flags, 0, std::memory_order_acquire,  in TryEvict()
514         table_.erase(CacheKey(handle->key, handle->hash));  in TryEvict()
516     RecycleHandle(handle, context);  in TryEvict()
519   handle->flags.fetch_and(~kUsageBit, std::memory_order_relaxed);  in TryEvict()
582   CacheHandle* handle = nullptr;  in Insert()  local
584     handle = recycle_.back();  in Insert()
588     handle = &list_.back();  in Insert()
591   handle->key = key;  in Insert()
592   handle->hash = hash;  in Insert()
593   handle->value = value;  in Insert()
594   handle->charge = charge;  in Insert()
595   handle->deleter = deleter;  in Insert()
597   handle->flags.store(flags, std::memory_order_relaxed);  in Insert()
604   table_.insert(HashTable::value_type(CacheKey(key, hash), handle));  in Insert()
609   return handle;  in Insert()
621   CacheHandle* handle = Insert(key_copy, hash, value, charge, deleter,  in Insert()  local
625     if (handle == nullptr) {  in Insert()
628       *out_handle = reinterpret_cast<Cache::Handle*>(handle);  in Insert()
640   CacheHandle* handle = accessor->second;  in Lookup()  local
644   if (!Ref(reinterpret_cast<Cache::Handle*>(handle))) {  in Lookup()
650   if (hash != handle->hash || key != handle->key) {  in Lookup()
652     Unref(handle, false, &context);  in Lookup()
657   return reinterpret_cast<Cache::Handle*>(handle);  in Lookup()
662   CacheHandle* handle = reinterpret_cast<CacheHandle*>(h);  in Release()  local
663   bool erased = Unref(handle, true, &context);  in Release()
665     erased = EraseAndConfirm(handle->key, handle->hash, &context);  in Release()
683     CacheHandle* handle = accessor->second;  in EraseAndConfirm()  local
685     erased = UnsetInCache(handle, context);  in EraseAndConfirm()
695     for (auto& handle : list_) {  in EraseUnRefEntries()  local
696       UnsetInCache(&handle, &context);  in EraseUnRefEntries()
728   void* Value(Handle* handle) override {  in Value()  argument
729     return reinterpret_cast<const CacheHandle*>(handle)->value;  in Value()
732   size_t GetCharge(Handle* handle) const override {  in GetCharge()
733     return reinterpret_cast<const CacheHandle*>(handle)->charge;  in GetCharge()
736   uint32_t GetHash(Handle* handle) const override {  in GetHash()
737     return reinterpret_cast<const CacheHandle*>(handle)->hash;  in GetHash()