f0fca2b1d5
Summary: Add compaction API for secondary instance, which compact the files to a secondary DB path without installing to the LSM tree. The API will be used to remote compaction. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8171 Test Plan: `make check` Reviewed By: ajkr Differential Revision: D27694545 Pulled By: jay-zhuang fbshipit-source-id: 8ff3ec1bffdb2e1becee994918850c8902caf731
50 lines
1.7 KiB
C++
50 lines
1.7 KiB
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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//
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#pragma once
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#include "db/dbformat.h"
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#include "rocksdb/status.h"
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#include "test_util/sync_point.h"
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#include "util/hash.h"
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namespace ROCKSDB_NAMESPACE {
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// A class that validates key/value that is inserted to an SST file.
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// Pass every key/value of the file using OutputValidator::Add()
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// and the class validates key order and optionally calculate a hash
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// of all the key and value.
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class OutputValidator {
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public:
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explicit OutputValidator(const InternalKeyComparator& icmp,
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bool enable_order_check, bool enable_hash)
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: icmp_(icmp),
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enable_order_check_(enable_order_check),
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enable_hash_(enable_hash) {}
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// Add a key to the KV sequence, and return whether the key follows
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// criteria, e.g. key is ordered.
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Status Add(const Slice& key, const Slice& value);
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// Compare result of two key orders are the same. It can be used
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// to compare the keys inserted into a file, and what is read back.
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// Return true if the validation passes.
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bool CompareValidator(const OutputValidator& other_validator) {
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return GetHash() == other_validator.GetHash();
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}
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// Not (yet) intended to be persisted, so subject to change
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// without notice between releases.
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uint64_t GetHash() const { return paranoid_hash_; }
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void SetHash(uint64_t hash) { paranoid_hash_ = hash; }
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private:
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const InternalKeyComparator& icmp_;
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std::string prev_key_;
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uint64_t paranoid_hash_ = 0;
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bool enable_order_check_;
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bool enable_hash_;
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};
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} // namespace ROCKSDB_NAMESPACE
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