Class CompressedFileRandomAccessDevice

Inheritance
object
CompressedFileRandomAccessDevice
Implements
Inherited Members
Namespace: Tenray.ZoneTree.Segments.RandomAccess
Assembly: ZoneTree.dll
Syntax
public sealed class CompressedFileRandomAccessDevice : IRandomAccessDevice, IDisposable

Constructors

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CompressedFileRandomAccessDevice(ILogger, IFileStreamProvider, long, string, IRandomAccessDeviceManager, string, bool, int, CompressionMethod, int, int)

Declaration
public CompressedFileRandomAccessDevice(ILogger logger, IFileStreamProvider fileStreamProvider, long segmentId, string category, IRandomAccessDeviceManager randomDeviceManager, string filePath, bool writable, int compressionBlockSize, CompressionMethod compressionMethod, int compressionLevel, int fileIOBufferSize = 4096)
Parameters
Type Name Description
ILogger logger
IFileStreamProvider fileStreamProvider
long segmentId
string category
IRandomAccessDeviceManager randomDeviceManager
string filePath
bool writable
int compressionBlockSize
CompressionMethod compressionMethod
int compressionLevel
int fileIOBufferSize

Properties

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FilePath

Declaration
public string FilePath { get; }
Property Value
Type Description
string
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Length

Declaration
public long Length { get; }
Property Value
Type Description
long
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ReadBufferCount

Returns read buffer count.

Declaration
public int ReadBufferCount { get; }
Property Value
Type Description
int
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SegmentId

Declaration
public long SegmentId { get; }
Property Value
Type Description
long
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Writable

Declaration
public bool Writable { get; }
Property Value
Type Description
bool

Methods

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AppendBytesReturnPosition(Memory<byte>)

Appends bytes and returns the position of the appended bytes.

Declaration
public long AppendBytesReturnPosition(Memory<byte> bytes)
Parameters
Type Name Description
Memory<byte> bytes

Bytes
Returns
Type Description
long

Position of the bytes.
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ClearContent()

Declaration
public void ClearContent()
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Close()

Declaration
public void Close()
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Delete()

Declaration
public void Delete()
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Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration
public void Dispose()
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GetBytes(long, int, SingleBlockPin)

Declaration
public Memory<byte> GetBytes(long offset, int length, SingleBlockPin blockPin = null)
Parameters
Type Name Description
long offset
int length
SingleBlockPin blockPin
Returns
Type Description
Memory<byte>
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ReleaseInactiveCachedBuffers(long)

Releases inactive cached read buffers. The buffers that have not been accessed since given ticks are released.

Declaration
public int ReleaseInactiveCachedBuffers(long ticks)
Parameters
Type Name Description
long ticks
Returns
Type Description
int

Total released read buffer count.
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SealDevice()

Seals the device. Sealed devices can not accept new writes and becomes immutable.

Declaration
public void SealDevice()

Implements