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 LoadInfoAboutFiles()
{
foreach (var file in _fileCollection.Enumerate())
{
try
{
var reader = file.GetExclusiveReader();
if (reader.CheckMagic(MagicStartOfFile))
{
var fileType = (KVFileType)reader.ReadUInt8();
IFileInfo fileInfo;
switch (fileType)
{
case KVFileType.TransactionLog:
fileInfo = new FileTransactionLog(reader);
break;
case KVFileType.KeyIndex:
fileInfo = new FileKeyIndex(reader);
break;
case KVFileType.PureValues:
fileInfo = new FilePureValues(reader);
break;
case KVFileType.PureValuesWithId:
fileInfo = new FilePureValuesWithId(reader);
break;
case KVFileType.HashKeyIndex:
fileInfo = new HashKeyIndex(reader);
break;
default:
fileInfo = UnknownFile.Instance;
break;
}
if (_fileGeneration < fileInfo.Generation) _fileGeneration = fileInfo.Generation;
_fileInfos.TryAdd(file.Index, fileInfo);
}
else
{
_fileInfos.TryAdd(file.Index, UnknownFile.Instance);
}
}
catch (Exception)
{
_fileInfos.TryAdd(file.Index, UnknownFile.Instance);
}
}
}
void LoadHashKeyIndex(uint hashKeyIndexFileId)
{
var reader = _fileCollection.GetFile(hashKeyIndexFileId).GetExclusiveReader();
_keyLen = (int)((IHashKeyIndex)_fileCollection.FileInfoByIdx(hashKeyIndexFileId)).KeyLen;
HashKeyIndex.SkipHeader(reader);
var keyBuf = ByteBuffer.NewSync(new byte[_keyLen]);
while (!reader.Eof)
{
var value = new StorageValue();
value.FileId = reader.ReadVUInt32();
value.FileOfs = reader.ReadVUInt32();
value.ContentLengthCompressedIsLeaf = reader.ReadVUInt32();
reader.ReadBlock(keyBuf);
_dict20.TryAdd(new ByteStructs.Key20(keyBuf), value);
}
}
void LoadInfoAboutFiles()
{
foreach (var file in _fileCollection.Enumerate())
{
try
{
var reader = file.GetExclusiveReader();
var magic = reader.ReadByteArrayRaw(MagicStartOfFile.Length);
Guid?guid = null;
if (
BitArrayManipulation.CompareByteArray(magic, magic.Length, MagicStartOfFileWithGuid,
MagicStartOfFileWithGuid.Length) == 0)
{
guid = reader.ReadGuid();
if (Guid.HasValue && Guid.Value != guid)
{
_fileInfos.TryAdd(file.Index, UnknownFile.Instance);
continue;
}
Guid = guid;
}
else if (
BitArrayManipulation.CompareByteArray(magic, magic.Length, MagicStartOfFile,
MagicStartOfFile.Length) != 0)
{
_fileInfos.TryAdd(file.Index, UnknownFile.Instance);
continue;
}
var fileType = (KVFileType)reader.ReadUInt8();
IFileInfo fileInfo;
switch (fileType)
{
case KVFileType.TransactionLog:
fileInfo = new FileTransactionLog(reader, guid);
break;
case KVFileType.KeyIndex:
fileInfo = new FileKeyIndex(reader, guid, false, false, false);
break;
case KVFileType.KeyIndexWithCommitUlong:
fileInfo = new FileKeyIndex(reader, guid, true, false, false);
break;
case KVFileType.ModernKeyIndex:
fileInfo = new FileKeyIndex(reader, guid, true, true, false);
break;
case KVFileType.ModernKeyIndexWithUlongs:
fileInfo = new FileKeyIndex(reader, guid, true, true, true);
break;
case KVFileType.PureValues:
fileInfo = new FilePureValues(reader, guid);
break;
case KVFileType.PureValuesWithId:
fileInfo = new FilePureValuesWithId(reader, guid);
break;
case KVFileType.HashKeyIndex:
fileInfo = new HashKeyIndex(reader, guid);
break;
default:
fileInfo = UnknownFile.Instance;
break;
}
if (_fileGeneration < fileInfo.Generation)
{
_fileGeneration = fileInfo.Generation;
}
_fileInfos.TryAdd(file.Index, fileInfo);
}
catch (Exception)
{
_fileInfos.TryAdd(file.Index, UnknownFile.Instance);
}
}
if (!Guid.HasValue)
{
Guid = System.Guid.NewGuid();
}
}
void LoadInfoAboutFiles()
{
foreach (var file in _fileCollection.Enumerate())
{
try
{
var reader = file.GetExclusiveReader();
var magic = reader.ReadByteArrayRaw(MagicStartOfFile.Length);
Guid? guid = null;
if (
BitArrayManipulation.CompareByteArray(magic, magic.Length, MagicStartOfFileWithGuid,
MagicStartOfFileWithGuid.Length) == 0)
{
guid = reader.ReadGuid();
if (Guid.HasValue && Guid.Value != guid)
{
_fileInfos.TryAdd(file.Index, UnknownFile.Instance);
continue;
}
Guid = guid;
}
else if (
BitArrayManipulation.CompareByteArray(magic, magic.Length, MagicStartOfFile,
MagicStartOfFile.Length) != 0)
{
_fileInfos.TryAdd(file.Index, UnknownFile.Instance);
continue;
}
var fileType = (KVFileType)reader.ReadUInt8();
IFileInfo fileInfo;
switch (fileType)
{
case KVFileType.TransactionLog:
fileInfo = new FileTransactionLog(reader, guid);
break;
case KVFileType.KeyIndex:
fileInfo = new FileKeyIndex(reader, guid, false);
break;
case KVFileType.KeyIndexWithCommitUlong:
fileInfo = new FileKeyIndex(reader, guid, true);
break;
case KVFileType.PureValues:
fileInfo = new FilePureValues(reader, guid);
break;
case KVFileType.PureValuesWithId:
fileInfo = new FilePureValuesWithId(reader, guid);
break;
case KVFileType.HashKeyIndex:
fileInfo = new HashKeyIndex(reader, guid);
break;
default:
fileInfo = UnknownFile.Instance;
break;
}
if (_fileGeneration < fileInfo.Generation) _fileGeneration = fileInfo.Generation;
_fileInfos.TryAdd(file.Index, fileInfo);
}
catch (Exception)
{
_fileInfos.TryAdd(file.Index, UnknownFile.Instance);
}
}
if (!Guid.HasValue)
{
Guid = System.Guid.NewGuid();
}
}
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);
}
