35ad531be3
Summary: Separate a new class InternalIterator from class Iterator, when the look-up is done internally, which also means they operate on key with sequence ID and type. This change will enable potential future optimizations but for now InternalIterator's functions are still the same as Iterator's. At the same time, separate the cleanup function to a separate class and let both of InternalIterator and Iterator inherit from it. Test Plan: Run all existing tests. Reviewers: igor, yhchiang, anthony, kradhakrishnan, IslamAbdelRahman, rven Reviewed By: rven Subscribers: leveldb, dhruba Differential Revision: https://reviews.facebook.net/D48549
30 lines
975 B
C++
30 lines
975 B
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#pragma once
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#include "table/internal_iterator.h"
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namespace rocksdb {
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class ScopedArenaIterator {
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public:
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explicit ScopedArenaIterator(InternalIterator* iter = nullptr)
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: iter_(iter) {}
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InternalIterator* operator->() { return iter_; }
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void set(InternalIterator* iter) { iter_ = iter; }
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InternalIterator* get() { return iter_; }
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~ScopedArenaIterator() { iter_->~InternalIterator(); }
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private:
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InternalIterator* iter_;
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};
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} // namespace rocksdb
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