62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
|
/*
|
||
|
|
* ConflictSet.h
|
||
|
|
*
|
||
|
|
* This source file is part of the FoundationDB open source project
|
||
|
|
*
|
||
|
|
* Copyright 2013-2018 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 "fdbclient/CommitTransaction.h"
|
||
|
|
|
||
|
|
struct ConflictSet;
|
||
|
|
ConflictSet* newConflictSet();
|
||
|
|
void clearConflictSet( ConflictSet*, Version );
|
||
|
|
void destroyConflictSet(ConflictSet*);
|
||
|
|
|
||
|
|
struct ConflictBatch {
|
||
|
|
explicit ConflictBatch( ConflictSet* );
|
||
|
|
~ConflictBatch();
|
||
|
|
|
||
|
|
enum TransactionCommitResult {
|
||
|
|
TransactionConflict = 0,
|
||
|
|
TransactionTooOld,
|
||
|
|
TransactionCommitted,
|
||
|
|
};
|
||
|
|
|
||
|
|
void addTransaction( const CommitTransactionRef& transaction );
|
||
|
|
void detectConflicts(Version now, Version newOldestVersion, vector<int>& nonConflicting, vector<int>* tooOldTransactions = NULL);
|
||
|
|
void GetTooOldTransactions(vector<int>& tooOldTransactions);
|
||
|
|
|
||
|
|
private:
|
||
|
|
ConflictSet* cs;
|
||
|
|
Standalone< VectorRef< struct TransactionInfo* > > transactionInfo;
|
||
|
|
vector<struct KeyInfo> points;
|
||
|
|
int transactionCount;
|
||
|
|
vector< pair<StringRef,StringRef> > combinedWriteConflictRanges;
|
||
|
|
vector< struct ReadConflictRange > combinedReadConflictRanges;
|
||
|
|
bool* transactionConflictStatus;
|
||
|
|
|
||
|
|
void checkIntraBatchConflicts();
|
||
|
|
void combineWriteConflictRanges();
|
||
|
|
void checkReadConflictRanges();
|
||
|
|
void mergeWriteConflictRanges(Version now);
|
||
|
|
void addConflictRanges(Version now, vector< pair<StringRef,StringRef> >::iterator begin, vector< pair<StringRef,StringRef> >::iterator end, class SkipList* part);
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|