1 files changed, 0 insertions, 66 deletions
diff --git a/util/arena.cc b/util/arena.cc
deleted file mode 100644
index 46e3b2e..0000000
--- a/util/arena.cc
+++ /dev/null
@@ -1,66 +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.
-
-#include "util/arena.h"
-
-namespace leveldb {
-
-static const int kBlockSize = 4096;
-
-Arena::Arena()
-    : alloc_ptr_(nullptr), alloc_bytes_remaining_(0), memory_usage_(0) {}
-
-Arena::~Arena() {
-  for (size_t i = 0; i < blocks_.size(); i++) {
-    delete[] blocks_[i];
-  }
-}
-
-char* Arena::AllocateFallback(size_t bytes) {
-  if (bytes > kBlockSize / 4) {
-    // Object is more than a quarter of our block size.  Allocate it separately
-    // to avoid wasting too much space in leftover bytes.
-    char* result = AllocateNewBlock(bytes);
-    return result;
-  }
-
-  // We waste the remaining space in the current block.
-  alloc_ptr_ = AllocateNewBlock(kBlockSize);
-  alloc_bytes_remaining_ = kBlockSize;
-
-  char* result = alloc_ptr_;
-  alloc_ptr_ += bytes;
-  alloc_bytes_remaining_ -= bytes;
-  return result;
-}
-
-char* Arena::AllocateAligned(size_t bytes) {
-  const int align = (sizeof(void*) > 8) ? sizeof(void*) : 8;
-  static_assert((align & (align - 1)) == 0,
-                "Pointer size should be a power of 2");
-  size_t current_mod = reinterpret_cast<uintptr_t>(alloc_ptr_) & (align - 1);
-  size_t slop = (current_mod == 0 ? 0 : align - current_mod);
-  size_t needed = bytes + slop;
-  char* result;
-  if (needed <= alloc_bytes_remaining_) {
-    result = alloc_ptr_ + slop;
-    alloc_ptr_ += needed;
-    alloc_bytes_remaining_ -= needed;
-  } else {
-    // AllocateFallback always returned aligned memory
-    result = AllocateFallback(bytes);
-  }
-  assert((reinterpret_cast<uintptr_t>(result) & (align - 1)) == 0);
-  return result;
-}
-
-char* Arena::AllocateNewBlock(size_t block_bytes) {
-  char* result = new char[block_bytes];
-  blocks_.push_back(result);
-  memory_usage_.fetch_add(block_bytes + sizeof(char*),
-                          std::memory_order_relaxed);
-  return result;
-}
-
-}  // namespace leveldb