f46464d383
Summary: This patch instruments the read path to verify each read value against an optional ReadCallback class. If the value is rejected, the reader moves on to the next value. The WritePreparedTxn makes use of this feature to skip sequence numbers that are not in the read snapshot. Closes https://github.com/facebook/rocksdb/pull/2850 Differential Revision: D5787375 Pulled By: maysamyabandeh fbshipit-source-id: 49d808b3062ab35e7ae98ad388f659757794184c
22 lines
569 B
C++
22 lines
569 B
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#pragma once
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#include "rocksdb/types.h"
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namespace rocksdb {
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class ReadCallback {
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public:
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virtual ~ReadCallback() {}
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// Will be called to see if the seq number accepted; if not it moves on to the
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// next seq number.
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virtual bool IsCommitted(SequenceNumber seq) = 0;
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};
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} // namespace rocksdb
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