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Fix unity build with SUPPORT_CLOCK_CACHE (#9309) 

Summary:
After https://github.com/facebook/rocksdb/issues/9126

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9309

Test Plan: CI

Reviewed By: ajkr

Differential Revision: D33188902

Pulled By: pdillinger

fbshipit-source-id: 54bf34e33c2b30b1b8dc2a0229e84c194321b606
This commit is contained in:
Peter Dillinger 2021-12-17 14:13:52 -08:00 committed by Facebook GitHub Bot
parent 6b5e28a43c
commit 0d9b256813
1 changed files with 12 additions and 11 deletions
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23
cache/clock_cache.cc vendored
View File

@ -228,22 +228,22 @@ struct CacheHandle {
};
// Key of hash map. We store hash value with the key for convenience.
struct CacheKey {
struct ClockCacheKey {
Slice key;
uint32_t hash_value;
CacheKey() = default;
ClockCacheKey() = default;
CacheKey(const Slice& k, uint32_t h) {
ClockCacheKey(const Slice& k, uint32_t h) {
key = k;
hash_value = h;
}
static bool equal(const CacheKey& a, const CacheKey& b) {
static bool equal(const ClockCacheKey& a, const ClockCacheKey& b) {
return a.hash_value == b.hash_value && a.key == b.key;
}
static size_t hash(const CacheKey& a) {
static size_t hash(const ClockCacheKey& a) {
return static_cast<size_t>(a.hash_value);
}
};
@ -260,7 +260,8 @@ struct CleanupContext {
class ClockCacheShard final : public CacheShard {
public:
// Hash map type.
using HashTable = tbb::concurrent_hash_map<CacheKey, CacheHandle*, CacheKey>;
using HashTable =
tbb::concurrent_hash_map<ClockCacheKey, CacheHandle*, ClockCacheKey>;
ClockCacheShard();
~ClockCacheShard() override;
@ -559,7 +560,7 @@ bool ClockCacheShard::TryEvict(CacheHandle* handle, CleanupContext* context) {
if (handle->flags.compare_exchange_strong(flags, 0, std::memory_order_acquire,
std::memory_order_relaxed)) {
bool erased __attribute__((__unused__)) =
table_.erase(CacheKey(handle->key, handle->hash));
table_.erase(ClockCacheKey(handle->key, handle->hash));
assert(erased);
RecycleHandle(handle, context);
return true;
@ -656,13 +657,13 @@ CacheHandle* ClockCacheShard::Insert(
// relative updates (fetch_add, etc).
handle->flags.store(flags, std::memory_order_relaxed);
HashTable::accessor accessor;
if (table_.find(accessor, CacheKey(key, hash))) {
if (table_.find(accessor, ClockCacheKey(key, hash))) {
*overwritten = true;
CacheHandle* existing_handle = accessor->second;
table_.erase(accessor);
UnsetInCache(existing_handle, context);
}
table_.insert(HashTable::value_type(CacheKey(key, hash), handle));
table_.insert(HashTable::value_type(ClockCacheKey(key, hash), handle));
if (hold_reference) {
pinned_usage_.fetch_add(total_charge, std::memory_order_relaxed);
}
@ -701,7 +702,7 @@ Status ClockCacheShard::Insert(const Slice& key, uint32_t hash, void* value,
Cache::Handle* ClockCacheShard::Lookup(const Slice& key, uint32_t hash) {
HashTable::const_accessor accessor;
if (!table_.find(accessor, CacheKey(key, hash))) {
if (!table_.find(accessor, ClockCacheKey(key, hash))) {
return nullptr;
}
CacheHandle* handle = accessor->second;
@ -746,7 +747,7 @@ bool ClockCacheShard::EraseAndConfirm(const Slice& key, uint32_t hash,
MutexLock l(&mutex_);
HashTable::accessor accessor;
bool erased = false;
if (table_.find(accessor, CacheKey(key, hash))) {
if (table_.find(accessor, ClockCacheKey(key, hash))) {
CacheHandle* handle = accessor->second;
table_.erase(accessor);
erased = UnsetInCache(handle, context);