71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/*
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* ConflictSet.h
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef CONFLICTSET_H
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#define CONFLICTSET_H
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#pragma once
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#include <utility>
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#include <vector>
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#include "fdbclient/CommitTransaction.h"
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struct ConflictSet;
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ConflictSet* newConflictSet();
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void clearConflictSet(ConflictSet*, Version);
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void destroyConflictSet(ConflictSet*);
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struct ConflictBatch {
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explicit ConflictBatch(ConflictSet*, std::map<int, VectorRef<int>>* conflictingKeyRangeMap = nullptr,
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Arena* resolveBatchReplyArena = nullptr);
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~ConflictBatch();
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enum TransactionCommitResult {
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TransactionConflict = 0,
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TransactionTooOld,
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TransactionCommitted,
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};
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void addTransaction(const CommitTransactionRef& transaction);
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void detectConflicts(Version now, Version newOldestVersion, std::vector<int>& nonConflicting,
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std::vector<int>* tooOldTransactions = nullptr);
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void GetTooOldTransactions(std::vector<int>& tooOldTransactions);
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private:
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ConflictSet* cs;
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Standalone<VectorRef<struct TransactionInfo*>> transactionInfo;
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std::vector<struct KeyInfo> points;
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int transactionCount;
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std::vector<std::pair<StringRef, StringRef>> combinedWriteConflictRanges;
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std::vector<struct ReadConflictRange> combinedReadConflictRanges;
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bool* transactionConflictStatus;
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std::map<int, VectorRef<int>>* conflictingKeyRangeMap;
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Arena* resolveBatchReplyArena;
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void checkIntraBatchConflicts();
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void combineWriteConflictRanges();
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void checkReadConflictRanges();
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void mergeWriteConflictRanges(Version now);
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void addConflictRanges(Version now, std::vector<std::pair<StringRef, StringRef>>::iterator begin,
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std::vector<std::pair<StringRef, StringRef>>::iterator end, class SkipList* part);
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};
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#endif
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