void StartNewPureValueFile()
{
_pureValueFile = _fileCollection.AddFile("hpv");
_pureValueFileWriter = _pureValueFile.GetAppenderWriter();
var fileInfo = new FilePureValuesWithId(_subDBId, _fileCollection.NextGeneration(), _fileCollection.Guid);
fileInfo.WriteHeader(_pureValueFileWriter);
_fileCollection.SetInfo(_pureValueFile.Index, fileInfo);
}
void StartNewHashIndexFile()
{
_hashIndexFile = _fileCollection.AddFile("hid");
_hashIndexWriter = _hashIndexFile.GetAppenderWriter();
var fileInfo = new HashKeyIndex(_subDBId, _fileCollection.NextGeneration(), _fileCollection.Guid, (uint)_keyLen);
fileInfo.WriteHeader(_hashIndexWriter);
_fileCollection.SetInfo(_hashIndexFile.Index, fileInfo);
}
void WriteStartOfNewTransactionLogFile()
{
if (_writerWithTransactionLog != null)
{
_writerWithTransactionLog.WriteUInt8((byte)KVCommandType.EndOfFile);
_writerWithTransactionLog.FlushBuffer();
_fileWithTransactionLog.HardFlush();
_fileWithTransactionLog.Truncate();
_fileIdWithPreviousTransactionLog = _fileIdWithTransactionLog;
}
_fileWithTransactionLog = FileCollection.AddFile("trl");
_fileIdWithTransactionLog = _fileWithTransactionLog.Index;
var transactionLog = new FileTransactionLog(FileCollection.NextGeneration(), FileCollection.Guid, _fileIdWithPreviousTransactionLog);
_writerWithTransactionLog = _fileWithTransactionLog.GetAppenderWriter();
transactionLog.WriteHeader(_writerWithTransactionLog);
FileCollection.SetInfo(_fileIdWithTransactionLog, transactionLog);
}
internal void WriteStartTransaction()
{
if (_fileIdWithTransactionLog == 0)
{
WriteStartOfNewTransactionLogFile();
}
else
{
if (_writerWithTransactionLog == null)
{
_fileWithTransactionLog = FileCollection.GetFile(_fileIdWithTransactionLog);
_writerWithTransactionLog = _fileWithTransactionLog.GetAppenderWriter();
}
if (_writerWithTransactionLog.GetCurrentPosition() > MaxTrLogFileSize)
{
WriteStartOfNewTransactionLogFile();
}
}
_writerWithTransactionLog.WriteUInt8((byte)KVCommandType.TransactionStart);
_writerWithTransactionLog.WriteByteArrayRaw(MagicStartOfTransaction);
}
void SetNewValueFile()
{
_cacheValueFile = _fileCollection.AddFile("cav");
_cacheValueFileId = _cacheValueFile.Index;
_cacheValueWriter = _cacheValueFile.GetAppenderWriter();
}
void SetNewValueFile()
{
_cacheValueFile = _fileCollection.AddFile("cav");
_cacheValueFileId = _cacheValueFile.Index;
_cacheValueWriter = _cacheValueFile.GetAppenderWriter();
}
public TrlFileReader(IFileCollectionFile file)
{
_readerController = file.GetExclusiveReader();
_compression = new SnappyCompressionStrategy();
_fileId = file.Index;
}
void StartNewHashIndexFile()
{
_hashIndexFile = _fileCollection.AddFile("hid");
_hashIndexWriter = _hashIndexFile.GetAppenderWriter();
var fileInfo = new HashKeyIndex(_subDBId, _fileCollection.NextGeneration(), (uint)_keyLen);
fileInfo.WriteHeader(_hashIndexWriter);
_fileCollection.SetInfo(_hashIndexFile.Index, fileInfo);
}
void StartNewPureValueFile()
{
_pureValueFile = _fileCollection.AddFile("hpv");
_pureValueFileWriter = _pureValueFile.GetAppenderWriter();
var fileInfo = new FilePureValuesWithId(_subDBId, _fileCollection.NextGeneration());
fileInfo.WriteHeader(_pureValueFileWriter);
_fileCollection.SetInfo(_pureValueFile.Index, fileInfo);
}
