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// --------------------------------------------------------------------------
//
// File
// Name: BackupStoreInfo.h
// Purpose: Main backup store information storage
// Created: 2003/08/28
//
// --------------------------------------------------------------------------
#ifndef BACKUPSTOREINFO__H
#define BACKUPSTOREINFO__H
#include <memory>
#include <string>
#include <vector>
#include "CollectInBufferStream.h"
class BackupStoreCheck;
// set packing to one byte
#ifdef STRUCTURE_PACKING_FOR_WIRE_USE_HEADERS
#include "BeginStructPackForWire.h"
#else
BEGIN_STRUCTURE_PACKING_FOR_WIRE
#endif
// ******************
// make sure the defaults in CreateNew are modified!
// ******************
// Old version, grandfathered, do not change!
typedef struct
{
int32_t mMagicValue; // also the version number
int32_t mAccountID;
int64_t mClientStoreMarker;
int64_t mLastObjectIDUsed;
int64_t mBlocksUsed;
int64_t mBlocksInOldFiles;
int64_t mBlocksInDeletedFiles;
int64_t mBlocksInDirectories;
int64_t mBlocksSoftLimit;
int64_t mBlocksHardLimit;
uint32_t mCurrentMarkNumber;
uint32_t mOptionsPresent; // bit mask of optional elements present
int64_t mNumberDeletedDirectories;
// Then loads of int64_t IDs for the deleted directories
} info_StreamFormat_1;
#define INFO_MAGIC_VALUE_1 0x34832476
#define INFO_MAGIC_VALUE_2 0x494e4632 /* INF2 */
// Use default packing
#ifdef STRUCTURE_PACKING_FOR_WIRE_USE_HEADERS
#include "EndStructPackForWire.h"
#else
END_STRUCTURE_PACKING_FOR_WIRE
#endif
#define INFO_FILENAME "info"
// --------------------------------------------------------------------------
//
// Class
// Name: BackupStoreInfo
// Purpose: Main backup store information storage
// Created: 2003/08/28
//
// --------------------------------------------------------------------------
class BackupStoreInfo
{
friend class BackupStoreCheck;
public:
~BackupStoreInfo();
private:
// Creation through static functions only
BackupStoreInfo();
// No copying allowed
BackupStoreInfo(const BackupStoreInfo &);
public:
// Create a New account, saving a blank info object to the disc
static void CreateNew(int32_t AccountID, const std::string &rRootDir, int DiscSet, int64_t BlockSoftLimit, int64_t BlockHardLimit);
// Load it from the store
static std::auto_ptr<BackupStoreInfo> Load(int32_t AccountID, const std::string &rRootDir, int DiscSet, bool ReadOnly, int64_t *pRevisionID = 0);
// Has info been modified?
bool IsModified() const {return mIsModified;}
// Save modified infomation back to store
void Save(bool allowOverwrite = true);
// Data access functions
int32_t GetAccountID() const {return mAccountID;}
int64_t GetLastObjectIDUsed() const {return mLastObjectIDUsed;}
int64_t GetBlocksUsed() const {return mBlocksUsed;}
int64_t GetBlocksInCurrentFiles() const {return mBlocksInCurrentFiles;}
int64_t GetBlocksInOldFiles() const {return mBlocksInOldFiles;}
int64_t GetBlocksInDeletedFiles() const {return mBlocksInDeletedFiles;}
int64_t GetBlocksInDirectories() const {return mBlocksInDirectories;}
const std::vector<int64_t> &GetDeletedDirectories() const {return mDeletedDirectories;}
int64_t GetBlocksSoftLimit() const {return mBlocksSoftLimit;}
int64_t GetBlocksHardLimit() const {return mBlocksHardLimit;}
int64_t GetNumFiles() const {return mNumFiles;}
int64_t GetNumOldFiles() const {return mNumOldFiles;}
int64_t GetNumDeletedFiles() const {return mNumDeletedFiles;}
int64_t GetNumDirectories() const {return mNumDirectories;}
bool IsAccountEnabled() const {return mAccountEnabled;}
bool IsReadOnly() const {return mReadOnly;}
int GetDiscSetNumber() const {return mDiscSet;}
int ReportChangesTo(BackupStoreInfo& rOldInfo);
// Data modification functions
void ChangeBlocksUsed(int64_t Delta);
void ChangeBlocksInCurrentFiles(int64_t Delta);
void ChangeBlocksInOldFiles(int64_t Delta);
void ChangeBlocksInDeletedFiles(int64_t Delta);
void ChangeBlocksInDirectories(int64_t Delta);
void CorrectAllUsedValues(int64_t Used, int64_t InOldFiles, int64_t InDeletedFiles, int64_t InDirectories);
void AddDeletedDirectory(int64_t DirID);
void RemovedDeletedDirectory(int64_t DirID);
void ChangeLimits(int64_t BlockSoftLimit, int64_t BlockHardLimit);
void AdjustNumFiles(int64_t increase);
void AdjustNumOldFiles(int64_t increase);
void AdjustNumDeletedFiles(int64_t increase);
void AdjustNumDirectories(int64_t increase);
// Object IDs
int64_t AllocateObjectID();
// Client marker set and get
int64_t GetClientStoreMarker() const {return mClientStoreMarker;}
void SetClientStoreMarker(int64_t ClientStoreMarker);
const std::string& GetAccountName() const { return mAccountName; }
void SetAccountName(const std::string& rName);
const CollectInBufferStream& GetExtraData() const { return mExtraData; }
void SetAccountEnabled(bool IsEnabled) {mAccountEnabled = IsEnabled; }
/**
* @return a new BackupStoreInfo with the requested properties.
* This is exposed to allow testing, do not use otherwise!
*/
static std::auto_ptr<BackupStoreInfo> CreateForRegeneration(
int32_t AccountID, const std::string &rAccountName,
const std::string &rRootDir, int DiscSet,
int64_t LastObjectID, int64_t BlocksUsed,
int64_t BlocksInCurrentFiles, int64_t BlocksInOldFiles,
int64_t BlocksInDeletedFiles, int64_t BlocksInDirectories,
int64_t BlockSoftLimit, int64_t BlockHardLimit,
bool AccountEnabled, IOStream& ExtraData);
private:
// Location information
// Be VERY careful about changing types of these values, as
// they now define the sizes of fields on disk (via Archive).
int32_t mAccountID;
std::string mAccountName;
int mDiscSet;
std::string mFilename;
bool mReadOnly;
bool mIsModified;
// Client infomation
int64_t mClientStoreMarker;
// Account information
int64_t mLastObjectIDUsed;
int64_t mBlocksUsed;
int64_t mBlocksInCurrentFiles;
int64_t mBlocksInOldFiles;
int64_t mBlocksInDeletedFiles;
int64_t mBlocksInDirectories;
int64_t mBlocksSoftLimit;
int64_t mBlocksHardLimit;
int64_t mNumFiles;
int64_t mNumOldFiles;
int64_t mNumDeletedFiles;
int64_t mNumDirectories;
std::vector<int64_t> mDeletedDirectories;
bool mAccountEnabled;
CollectInBufferStream mExtraData;
};
#endif // BACKUPSTOREINFO__H
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