1 files changed, 0 insertions, 71 deletions
diff --git a/util/arena.h b/util/arena.h
deleted file mode 100644
index 68fc55d..0000000
--- a/util/arena.h
+++ /dev/null
@@ -1,71 +0,0 @@
-// 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.
-
-#ifndef STORAGE_LEVELDB_UTIL_ARENA_H_
-#define STORAGE_LEVELDB_UTIL_ARENA_H_
-
-#include <atomic>
-#include <cassert>
-#include <cstddef>
-#include <cstdint>
-#include <vector>
-
-namespace leveldb {
-
-class Arena {
- public:
-  Arena();
-
-  Arena(const Arena&) = delete;
-  Arena& operator=(const Arena&) = delete;
-
-  ~Arena();
-
-  // Return a pointer to a newly allocated memory block of "bytes" bytes.
-  char* Allocate(size_t bytes);
-
-  // Allocate memory with the normal alignment guarantees provided by malloc.
-  char* AllocateAligned(size_t bytes);
-
-  // Returns an estimate of the total memory usage of data allocated
-  // by the arena.
-  size_t MemoryUsage() const {
-    return memory_usage_.load(std::memory_order_relaxed);
-  }
-
- private:
-  char* AllocateFallback(size_t bytes);
-  char* AllocateNewBlock(size_t block_bytes);
-
-  // Allocation state
-  char* alloc_ptr_;
-  size_t alloc_bytes_remaining_;
-
-  // Array of new[] allocated memory blocks
-  std::vector<char*> blocks_;
-
-  // Total memory usage of the arena.
-  //
-  // TODO(costan): This member is accessed via atomics, but the others are
-  //               accessed without any locking. Is this OK?
-  std::atomic<size_t> memory_usage_;
-};
-
-inline char* Arena::Allocate(size_t bytes) {
-  // The semantics of what to return are a bit messy if we allow
-  // 0-byte allocations, so we disallow them here (we don't need
-  // them for our internal use).
-  assert(bytes > 0);
-  if (bytes <= alloc_bytes_remaining_) {
-    char* result = alloc_ptr_;
-    alloc_ptr_ += bytes;
-    alloc_bytes_remaining_ -= bytes;
-    return result;
-  }
-  return AllocateFallback(bytes);
-}
-
-}  // namespace leveldb
-
-#endif  // STORAGE_LEVELDB_UTIL_ARENA_H_