78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
/*
|
|
* ConflictSet.h
|
|
*
|
|
* This source file is part of the FoundationDB open source project
|
|
*
|
|
* Copyright 2013-2022 Apple Inc. and the FoundationDB project authors
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef CONFLICTSET_H
|
|
#define CONFLICTSET_H
|
|
#pragma once
|
|
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "fdbclient/CommitTransaction.h"
|
|
|
|
struct ConflictSet;
|
|
ConflictSet* newConflictSet();
|
|
void clearConflictSet(ConflictSet*, Version);
|
|
void destroyConflictSet(ConflictSet*);
|
|
|
|
struct ConflictBatch {
|
|
explicit ConflictBatch(ConflictSet*,
|
|
std::map<int, VectorRef<int>>* conflictingKeyRangeMap = nullptr,
|
|
Arena* resolveBatchReplyArena = nullptr);
|
|
~ConflictBatch();
|
|
|
|
enum TransactionCommitResult {
|
|
TransactionConflict = 0,
|
|
TransactionTooOld,
|
|
TransactionTenantFailure,
|
|
TransactionCommitted,
|
|
};
|
|
|
|
void addTransaction(const CommitTransactionRef& transaction);
|
|
void detectConflicts(Version now,
|
|
Version newOldestVersion,
|
|
std::vector<int>& nonConflicting,
|
|
std::vector<int>* tooOldTransactions = nullptr);
|
|
void GetTooOldTransactions(std::vector<int>& tooOldTransactions);
|
|
|
|
private:
|
|
ConflictSet* cs;
|
|
Standalone<VectorRef<struct TransactionInfo*>> transactionInfo;
|
|
std::vector<struct KeyInfo> points;
|
|
int transactionCount;
|
|
std::vector<std::pair<StringRef, StringRef>> combinedWriteConflictRanges;
|
|
std::vector<struct ReadConflictRange> combinedReadConflictRanges;
|
|
bool* transactionConflictStatus;
|
|
// Stores the map: a transaction -> conflicted transactions' indices
|
|
std::map<int, VectorRef<int>>* conflictingKeyRangeMap;
|
|
Arena* resolveBatchReplyArena;
|
|
|
|
void checkIntraBatchConflicts();
|
|
void combineWriteConflictRanges();
|
|
void checkReadConflictRanges();
|
|
void mergeWriteConflictRanges(Version now);
|
|
void addConflictRanges(Version now,
|
|
std::vector<std::pair<StringRef, StringRef>>::iterator begin,
|
|
std::vector<std::pair<StringRef, StringRef>>::iterator end,
|
|
class SkipList* part);
|
|
};
|
|
|
|
#endif
|