1 files changed, 38 insertions, 0 deletions
diff --git a/src/rocksdb/table/block_based/reader_common.h b/src/rocksdb/table/block_based/reader_common.h
new file mode 100644
index 000000000..5bb199f28
--- /dev/null
+++ b/src/rocksdb/table/block_based/reader_common.h
@@ -0,0 +1,38 @@
+//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  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).
+//
+// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file. See the AUTHORS file for names of contributors.
+#pragma once
+
+#include "rocksdb/cache.h"
+#include "rocksdb/table.h"
+
+namespace ROCKSDB_NAMESPACE {
+// Release the cached entry and decrement its ref count.
+extern void ForceReleaseCachedEntry(void* arg, void* h);
+
+inline MemoryAllocator* GetMemoryAllocator(
+    const BlockBasedTableOptions& table_options) {
+  return table_options.block_cache.get()
+             ? table_options.block_cache->memory_allocator()
+             : nullptr;
+}
+
+inline MemoryAllocator* GetMemoryAllocatorForCompressedBlock(
+    const BlockBasedTableOptions& table_options) {
+  return table_options.block_cache_compressed.get()
+             ? table_options.block_cache_compressed->memory_allocator()
+             : nullptr;
+}
+
+// Assumes block has a trailer as in format.h. file_name and offset provided
+// for generating a diagnostic message in returned status.
+extern Status VerifyBlockChecksum(ChecksumType type, const char* data,
+                                  size_t block_size,
+                                  const std::string& file_name,
+                                  uint64_t offset);
+}  // namespace ROCKSDB_NAMESPACE