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authorLorry Tar Creator <lorry-tar-importer@lorry>2017-06-27 06:07:23 +0000
committerLorry Tar Creator <lorry-tar-importer@lorry>2017-06-27 06:07:23 +0000
commit1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c (patch)
tree46dcd36c86e7fbc6e5df36deb463b33e9967a6f7 /Source/ThirdParty/leveldb/table/two_level_iterator.h
parent32761a6cee1d0dee366b885b7b9c777e67885688 (diff)
downloadWebKitGtk-tarball-master.tar.gz
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-// 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_TABLE_TWO_LEVEL_ITERATOR_H_
-#define STORAGE_LEVELDB_TABLE_TWO_LEVEL_ITERATOR_H_
-
-#include "leveldb/iterator.h"
-
-namespace leveldb {
-
-struct ReadOptions;
-
-// Return a new two level iterator. A two-level iterator contains an
-// index iterator whose values point to a sequence of blocks where
-// each block is itself a sequence of key,value pairs. The returned
-// two-level iterator yields the concatenation of all key/value pairs
-// in the sequence of blocks. Takes ownership of "index_iter" and
-// will delete it when no longer needed.
-//
-// Uses a supplied function to convert an index_iter value into
-// an iterator over the contents of the corresponding block.
-extern Iterator* NewTwoLevelIterator(
- Iterator* index_iter,
- Iterator* (*block_function)(
- void* arg,
- const ReadOptions& options,
- const Slice& index_value),
- void* arg,
- const ReadOptions& options);
-
-} // namespace leveldb
-
-#endif // STORAGE_LEVELDB_TABLE_TWO_LEVEL_ITERATOR_H_