int64_t run_housekeeping(BackupStoreAccountDatabase::Entry& rAccount)
{
std::string rootDir = BackupStoreAccounts::GetAccountRoot(rAccount);
int discSet = rAccount.GetDiscSet();
// Do housekeeping on this account
HousekeepStoreAccount housekeeping(rAccount.GetID(), rootDir,
discSet, NULL);
housekeeping.DoHousekeeping(HousekeepStoreAccount::DefaultAction, true /* keep trying forever */);
return housekeeping.GetErrorCount();
}
std::string BackupStoreRefCountDatabase::GetFilename(const
BackupStoreAccountDatabase::Entry& rAccount, bool Temporary)
{
std::string RootDir = BackupStoreAccounts::GetAccountRoot(rAccount);
ASSERT(RootDir[RootDir.size() - 1] == '/' ||
RootDir[RootDir.size() - 1] == DIRECTORY_SEPARATOR_ASCHAR);
std::string fn(RootDir + REFCOUNT_FILENAME ".rdb");
if(Temporary)
{
fn += "X";
}
RaidFileController &rcontroller(RaidFileController::GetController());
RaidFileDiscSet rdiscSet(rcontroller.GetDiscSet(rAccount.GetDiscSet()));
return RaidFileUtil::MakeWriteFileName(rdiscSet, fn);
}
// --------------------------------------------------------------------------
//
// Function
// Name: BackupStoreRefCountDatabase::Create(int32_t,
// const std::string &, int, bool)
// Purpose: Create a blank database, using a temporary file that
// you must Discard() or Commit() to make permanent.
// Created: 2003/08/28
//
// --------------------------------------------------------------------------
std::auto_ptr<BackupStoreRefCountDatabase>
BackupStoreRefCountDatabase::Create
(const BackupStoreAccountDatabase::Entry& rAccount)
{
// Initial header
refcount_StreamFormat hdr;
hdr.mMagicValue = htonl(REFCOUNT_MAGIC_VALUE);
hdr.mAccountID = htonl(rAccount.GetID());
std::string Filename = GetFilename(rAccount, true); // temporary
// Open the file for writing
if (FileExists(Filename))
{
BOX_WARNING(BOX_FILE_MESSAGE(Filename, "Overwriting existing "
"temporary reference count database"));
if (unlink(Filename.c_str()) != 0)
{
THROW_SYS_FILE_ERROR("Failed to delete old temporary "
"reference count database file", Filename,
CommonException, OSFileError);
}
}
int flags = O_CREAT | O_BINARY | O_RDWR | O_EXCL;
std::auto_ptr<FileStream> DatabaseFile(new FileStream(Filename, flags));
// Write header
DatabaseFile->Write(&hdr, sizeof(hdr));
// Make new object
std::auto_ptr<BackupStoreRefCountDatabase> refcount(
new BackupStoreRefCountDatabase(rAccount, false, true,
DatabaseFile));
// The root directory must always have one reference for a database
// to be valid, so set that now on the new database. This will leave
// mIsModified set to true.
refcount->SetRefCount(BACKUPSTORE_ROOT_DIRECTORY_ID, 1);
// return it to caller
return refcount;
}
// --------------------------------------------------------------------------
//
// Function
// Name: BackupStoreRefCountDatabase::Load(int32_t AccountID,
// BackupStoreAccountDatabase& rAccountDatabase,
// bool ReadOnly);
// Purpose: Loads the info from disc, given the root
// information. Can be marked as read only.
// Created: 2003/08/28
//
// --------------------------------------------------------------------------
std::auto_ptr<BackupStoreRefCountDatabase> BackupStoreRefCountDatabase::Load(
const BackupStoreAccountDatabase::Entry& rAccount, bool ReadOnly)
{
// Generate the filename. Cannot open a temporary database, so it must
// be a permanent one.
std::string Filename = GetFilename(rAccount, false);
int flags = ReadOnly ? O_RDONLY : O_RDWR;
// Open the file for read/write
std::auto_ptr<FileStream> dbfile(new FileStream(Filename,
flags | O_BINARY));
// Read in a header
refcount_StreamFormat hdr;
if(!dbfile->ReadFullBuffer(&hdr, sizeof(hdr), 0 /* not interested in bytes read if this fails */))
{
THROW_FILE_ERROR("Failed to read refcount database: "
"short read", Filename, BackupStoreException,
CouldNotLoadStoreInfo);
}
// Check it
if(ntohl(hdr.mMagicValue) != REFCOUNT_MAGIC_VALUE ||
(int32_t)ntohl(hdr.mAccountID) != rAccount.GetID())
{
THROW_FILE_ERROR("Failed to read refcount database: "
"bad magic number", Filename, BackupStoreException,
BadStoreInfoOnLoad);
}
// Make new object
std::auto_ptr<BackupStoreRefCountDatabase> refcount(
new BackupStoreRefCountDatabase(rAccount, ReadOnly, false,
dbfile));
// return it to caller
return refcount;
}
