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16bdb1f999
Summary: This PR adds timestamp support to a read only DB instance opened as `DBImplReadOnly`. A follow up PR will add the same support to `CompactedDBImpl`. With this, read only database has these timestamp related APIs: `ReadOptions.timestamp` : read should return the latest data visible to this specified timestamp `Iterator::timestamp()` : returns the timestamp associated with the key, value `DB:Get(..., std::string* timestamp)` : returns the timestamp associated with the key, value in `timestamp` Test plan (on devserver): ``` $COMPILE_WITH_ASAN=1 make -j24 all $./db_with_timestamp_basic_test --gtest_filter=DBBasicTestWithTimestamp.ReadOnlyDB* ``` Pull Request resolved: https://github.com/facebook/rocksdb/pull/10004 Reviewed By: riversand963 Differential Revision: D36434422 Pulled By: jowlyzhang fbshipit-source-id: 5d949e65b1ffb845758000e2b310fdd4aae71cfb
97 lines
3.4 KiB
C++
97 lines
3.4 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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// 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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#include "db/db_with_timestamp_test_util.h"
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namespace ROCKSDB_NAMESPACE {
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std::string DBBasicTestWithTimestampBase::Key1(uint64_t k) {
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std::string ret;
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PutFixed64(&ret, k);
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std::reverse(ret.begin(), ret.end());
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return ret;
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}
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std::string DBBasicTestWithTimestampBase::KeyWithPrefix(std::string prefix,
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uint64_t k) {
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std::string ret;
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PutFixed64(&ret, k);
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std::reverse(ret.begin(), ret.end());
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return prefix + ret;
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}
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std::vector<Slice> DBBasicTestWithTimestampBase::ConvertStrToSlice(
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std::vector<std::string>& strings) {
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std::vector<Slice> ret;
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for (const auto& s : strings) {
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ret.emplace_back(s);
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}
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return ret;
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}
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std::string DBBasicTestWithTimestampBase::Timestamp(uint64_t low,
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uint64_t high) {
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std::string ts;
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PutFixed64(&ts, low);
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PutFixed64(&ts, high);
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return ts;
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}
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void DBBasicTestWithTimestampBase::CheckIterUserEntry(
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const Iterator* it, const Slice& expected_key,
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ValueType expected_value_type, const Slice& expected_value,
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const Slice& expected_ts) const {
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ASSERT_TRUE(it->Valid());
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ASSERT_OK(it->status());
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ASSERT_EQ(expected_key, it->key());
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if (kTypeValue == expected_value_type) {
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ASSERT_EQ(expected_value, it->value());
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}
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ASSERT_EQ(expected_ts, it->timestamp());
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}
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void DBBasicTestWithTimestampBase::CheckIterEntry(
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const Iterator* it, const Slice& expected_ukey, SequenceNumber expected_seq,
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ValueType expected_val_type, const Slice& expected_value,
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const Slice& expected_ts) const {
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ASSERT_TRUE(it->Valid());
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ASSERT_OK(it->status());
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std::string ukey_and_ts;
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ukey_and_ts.assign(expected_ukey.data(), expected_ukey.size());
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ukey_and_ts.append(expected_ts.data(), expected_ts.size());
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ParsedInternalKey parsed_ikey;
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ASSERT_OK(ParseInternalKey(it->key(), &parsed_ikey, true /* log_err_key */));
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ASSERT_EQ(ukey_and_ts, parsed_ikey.user_key);
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ASSERT_EQ(expected_val_type, parsed_ikey.type);
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ASSERT_EQ(expected_seq, parsed_ikey.sequence);
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if (expected_val_type == kTypeValue) {
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ASSERT_EQ(expected_value, it->value());
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}
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ASSERT_EQ(expected_ts, it->timestamp());
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}
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void DBBasicTestWithTimestampBase::CheckIterEntry(
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const Iterator* it, const Slice& expected_ukey, ValueType expected_val_type,
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const Slice& expected_value, const Slice& expected_ts) const {
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ASSERT_TRUE(it->Valid());
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ASSERT_OK(it->status());
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std::string ukey_and_ts;
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ukey_and_ts.assign(expected_ukey.data(), expected_ukey.size());
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ukey_and_ts.append(expected_ts.data(), expected_ts.size());
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ParsedInternalKey parsed_ikey;
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ASSERT_OK(ParseInternalKey(it->key(), &parsed_ikey, true /* log_err_key */));
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ASSERT_EQ(expected_val_type, parsed_ikey.type);
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ASSERT_EQ(Slice(ukey_and_ts), parsed_ikey.user_key);
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if (expected_val_type == kTypeValue) {
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ASSERT_EQ(expected_value, it->value());
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}
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ASSERT_EQ(expected_ts, it->timestamp());
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}
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} // namespace ROCKSDB_NAMESPACE
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