1 files changed, 45 insertions, 0 deletions
diff --git a/tensorflow/core/lib/io/block.h b/tensorflow/core/lib/io/block.h
new file mode 100644
index 0000000000..bf53245b8d
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+++ b/tensorflow/core/lib/io/block.h
@@ -0,0 +1,45 @@
+// 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 TENSORFLOW_LIB_IO_BLOCK_H_
+#define TENSORFLOW_LIB_IO_BLOCK_H_
+
+#include <stddef.h>
+#include <stdint.h>
+#include "tensorflow/core/lib/io/iterator.h"
+
+namespace tensorflow {
+namespace table {
+
+struct BlockContents;
+
+class Block {
+ public:
+  // Initialize the block with the specified contents.
+  explicit Block(const BlockContents& contents);
+
+  ~Block();
+
+  size_t size() const { return size_; }
+  Iterator* NewIterator();
+
+ private:
+  uint32 NumRestarts() const;
+
+  const char* data_;
+  size_t size_;
+  uint32 restart_offset_;  // Offset in data_ of restart array
+  bool owned_;             // Block owns data_[]
+
+  // No copying allowed
+  Block(const Block&);
+  void operator=(const Block&);
+
+  class Iter;
+};
+
+}  // namespace table
+}  // namespace tensorflow
+
+#endif  // TENSORFLOW_LIB_IO_BLOCK_H_