update ceph source to reef 18.1.2

[ceph.git] / ceph / src / rocksdb / utilities / persistent_cache / block_cache_tier.h

diff --git a/ceph/src/rocksdb/utilities/persistent_cache/block_cache_tier.h b/ceph/src/rocksdb/utilities/persistent_cache/block_cache_tier.h
index d0114355291cb76ac61e5a6008146aad989805d8..1aac287cc0ed9e65fa67f030dc4a18e92b030902 100644 (file)
--- a/ceph/src/rocksdb/utilities/persistent_cache/block_cache_tier.h
+++ b/ceph/src/rocksdb/utilities/persistent_cache/block_cache_tier.h
@@ -1,15 +1,16 @@
 //  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
 #pragma once
 
 #ifndef ROCKSDB_LITE
 
-#ifndef  OS_WIN
+#ifndef OS_WIN
 #include <unistd.h>
-#endif // ! OS_WIN
+#endif  // ! OS_WIN
 
+#include <atomic>
 #include <list>
 #include <memory>
 #include <set>
@@ -18,23 +19,22 @@
 #include <string>
 #include <thread>
 
-#include "rocksdb/cache.h"
-#include "rocksdb/comparator.h"
-#include "rocksdb/persistent_cache.h"
-
-#include "utilities/persistent_cache/block_cache_tier_file.h"
-#include "utilities/persistent_cache/block_cache_tier_metadata.h"
-#include "utilities/persistent_cache/persistent_cache_util.h"
-
+#include "memory/arena.h"
 #include "memtable/skiplist.h"
 #include "monitoring/histogram.h"
 #include "port/port.h"
-#include "util/arena.h"
+#include "rocksdb/cache.h"
+#include "rocksdb/comparator.h"
+#include "rocksdb/persistent_cache.h"
+#include "rocksdb/system_clock.h"
 #include "util/coding.h"
 #include "util/crc32c.h"
 #include "util/mutexlock.h"
+#include "utilities/persistent_cache/block_cache_tier_file.h"
+#include "utilities/persistent_cache/block_cache_tier_metadata.h"
+#include "utilities/persistent_cache/persistent_cache_util.h"
 
-namespace rocksdb {
+namespace ROCKSDB_NAMESPACE {
 
 //
 // Block cache tier implementation
@@ -43,16 +43,17 @@ class BlockCacheTier : public PersistentCacheTier {
  public:
   explicit BlockCacheTier(const PersistentCacheConfig& opt)
       : opt_(opt),
-        insert_ops_(opt_.max_write_pipeline_backlog_size),
+        insert_ops_(static_cast<size_t>(opt_.max_write_pipeline_backlog_size)),
         buffer_allocator_(opt.write_buffer_size, opt.write_buffer_count()),
-        writer_(this, opt_.writer_qdepth, opt_.writer_dispatch_size) {
-    Info(opt_.log, "Initializing allocator. size=%d B count=%d",
+        writer_(this, opt_.writer_qdepth,
+                static_cast<size_t>(opt_.writer_dispatch_size)) {
+    Info(opt_.log, "Initializing allocator. size=%d B count=%" ROCKSDB_PRIszt,
          opt_.write_buffer_size, opt_.write_buffer_count());
   }
 
   virtual ~BlockCacheTier() {
     // Close is re-entrant so we can call close even if it is already closed
-    Close();
+    Close().PermitUncheckedError();
     assert(!insert_th_.joinable());
   }
 
@@ -73,7 +74,7 @@ class BlockCacheTier : public PersistentCacheTier {
   void TEST_Flush() override {
     while (insert_ops_.Size()) {
       /* sleep override */
-      Env::Default()->SleepForMicroseconds(1000000);
+      SystemClock::Default()->SleepForMicroseconds(1000000);
     }
   }
 
@@ -91,7 +92,7 @@ class BlockCacheTier : public PersistentCacheTier {
     ~InsertOp() {}
 
     InsertOp() = delete;
-    InsertOp(InsertOp&& rhs) = default;
+    InsertOp(InsertOp&& /*rhs*/) = default;
     InsertOp& operator=(InsertOp&& rhs) = default;
 
     // used for estimating size by bounded queue
@@ -99,7 +100,7 @@ class BlockCacheTier : public PersistentCacheTier {
 
     std::string key_;
     std::string data_;
-    const bool signal_ = false;  // signal to request processing thread to exit
+    bool signal_ = false;  // signal to request processing thread to exit
   };
 
   // entry point for insert thread
@@ -121,10 +122,10 @@ class BlockCacheTier : public PersistentCacheTier {
     HistogramImpl read_hit_latency_;
     HistogramImpl read_miss_latency_;
     HistogramImpl write_latency_;
-    uint64_t cache_hits_ = 0;
-    uint64_t cache_misses_ = 0;
-    uint64_t cache_errors_ = 0;
-    uint64_t insert_dropped_ = 0;
+    std::atomic<uint64_t> cache_hits_{0};
+    std::atomic<uint64_t> cache_misses_{0};
+    std::atomic<uint64_t> cache_errors_{0};
+    std::atomic<uint64_t> insert_dropped_{0};
 
     double CacheHitPct() const {
       const auto lookups = cache_hits_ + cache_misses_;
@@ -140,16 +141,16 @@ class BlockCacheTier : public PersistentCacheTier {
   port::RWMutex lock_;                          // Synchronization
   const PersistentCacheConfig opt_;             // BlockCache options
   BoundedQueue<InsertOp> insert_ops_;           // Ops waiting for insert
-  rocksdb::port::Thread insert_th_;                       // Insert thread
+  ROCKSDB_NAMESPACE::port::Thread insert_th_;   // Insert thread
   uint32_t writer_cache_id_ = 0;                // Current cache file identifier
   WriteableCacheFile* cache_file_ = nullptr;    // Current cache file reference
   CacheWriteBufferAllocator buffer_allocator_;  // Buffer provider
   ThreadedWriter writer_;                       // Writer threads
   BlockCacheTierMetadata metadata_;             // Cache meta data manager
   std::atomic<uint64_t> size_{0};               // Size of the cache
-  Statistics stats_;                                 // Statistics
+  Statistics stats_;                            // Statistics
 };
 
-}  // namespace rocksdb
+}  // namespace ROCKSDB_NAMESPACE
 
 #endif