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// record_store_v1_test_help.h
/**
* Copyright (C) 2014 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include <vector>
#include "mongo/db/storage/mmap_v1/extent_manager.h"
#include "mongo/db/storage/mmap_v1/record_store_v1_base.h"
namespace mongo {
class DummyRecordStoreV1MetaData : public RecordStoreV1MetaData {
public:
DummyRecordStoreV1MetaData( bool capped, int userFlags );
virtual ~DummyRecordStoreV1MetaData(){}
virtual const DiskLoc& capExtent() const;
virtual void setCapExtent( OperationContext* txn, const DiskLoc& loc );
virtual const DiskLoc& capFirstNewRecord() const;
virtual void setCapFirstNewRecord( OperationContext* txn, const DiskLoc& loc );
virtual long long dataSize() const;
virtual long long numRecords() const;
virtual void incrementStats( OperationContext* txn,
long long dataSizeIncrement,
long long numRecordsIncrement );
virtual void setStats( OperationContext* txn,
long long dataSize,
long long numRecords );
virtual const DiskLoc& deletedListEntry( int bucket ) const;
virtual void setDeletedListEntry( OperationContext* txn,
int bucket,
const DiskLoc& loc );
virtual void orphanDeletedList(OperationContext* txn);
virtual const DiskLoc& firstExtent( OperationContext* txn ) const;
virtual void setFirstExtent( OperationContext* txn, const DiskLoc& loc );
virtual const DiskLoc& lastExtent( OperationContext* txn ) const;
virtual void setLastExtent( OperationContext* txn, const DiskLoc& loc );
virtual bool isCapped() const;
virtual bool isUserFlagSet( int flag ) const;
virtual int userFlags() const { return _userFlags; }
virtual bool setUserFlag( OperationContext* txn, int flag );
virtual bool clearUserFlag( OperationContext* txn, int flag );
virtual bool replaceUserFlags( OperationContext* txn, int flags );
virtual int lastExtentSize( OperationContext* txn ) const;
virtual void setLastExtentSize( OperationContext* txn, int newMax );
virtual long long maxCappedDocs() const;
protected:
DiskLoc _capExtent;
DiskLoc _capFirstNewRecord;
long long _dataSize;
long long _numRecords;
DiskLoc _firstExtent;
DiskLoc _lastExtent;
bool _capped;
int _userFlags;
long long _maxCappedDocs;
int _lastExtentSize;
double _paddingFactor;
std::vector<DiskLoc> _deletedLists;
};
class DummyExtentManager : public ExtentManager {
public:
virtual ~DummyExtentManager();
virtual Status init(OperationContext* txn);
virtual int numFiles() const;
virtual long long fileSize() const;
virtual DiskLoc allocateExtent( OperationContext* txn,
bool capped,
int size,
bool enforceQuota );
virtual void freeExtents( OperationContext* txn,
DiskLoc firstExt, DiskLoc lastExt );
virtual void freeExtent( OperationContext* txn, DiskLoc extent );
virtual void freeListStats(OperationContext* txn,
int* numExtents,
int64_t* totalFreeSizeBytes) const;
virtual Record* recordForV1( const DiskLoc& loc ) const;
virtual Extent* extentForV1( const DiskLoc& loc ) const;
virtual DiskLoc extentLocForV1( const DiskLoc& loc ) const;
virtual Extent* getExtent( const DiskLoc& loc, bool doSanityCheck = true ) const;
virtual int maxSize() const;
virtual CacheHint* cacheHint( const DiskLoc& extentLoc, const HintType& hint );
protected:
struct ExtentInfo {
char* data;
size_t length;
};
std::vector<ExtentInfo> _extents;
};
struct LocAndSize {
DiskLoc loc;
int size; // with headers
};
/**
* Creates a V1 storage/mmap_v1 with the passed in records and DeletedRecords (drecs).
*
* List of LocAndSize are terminated by a Null DiskLoc. Passing a NULL pointer is shorthand for
* an empty list. Each extent gets it's own DiskLoc file number. DiskLoc Offsets must be > 1000.
*
* records must be sorted by extent/file. offsets within an extent can be in any order.
*
* In a simple RS, drecs must be grouped into size-buckets, but the ordering within the size
* buckets is up to you.
*
* In a capped collection, all drecs form a single list and must be grouped by extent, with each
* extent having at least one drec. capFirstNewRecord() and capExtent() *must* be correctly set
* on md before calling.
*
* You are responsible for ensuring the records and drecs don't overlap.
*
* ExtentManager and MetaData must both be empty.
*/
void initializeV1RS(OperationContext* txn,
const LocAndSize* records,
const LocAndSize* drecs,
DummyExtentManager* em,
DummyRecordStoreV1MetaData* md);
/**
* Asserts that the V1RecordStore defined by md has the passed in records and drecs in the
* correct order.
*
* List of LocAndSize are terminated by a Null DiskLoc. Passing a NULL pointer means don't check
* that list.
*/
void assertStateV1RS(OperationContext* txn,
const LocAndSize* records,
const LocAndSize* drecs,
const ExtentManager* em,
const DummyRecordStoreV1MetaData* md);
} // namespace mongo
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