Add XZ (LZMA) compression support to System.IO.Compression

### Background and motivation The goal of this proposal is to expose LZMA/XZ compression and decompression through APIs that follow the established patterns in `System.IO.Compression`. The native library will be shipped with https://github.com/dotnet/runtime/pull/124003 ### API Proposal ```c# namespace System.IO.Compression { public enum XzChecksumType { None = 0, Crc32 = 1, Crc64 = 2, Sha256 = 3, } public sealed partial class XzCompressionOptions { public XzCompressionOptions() { } public static int DefaultQuality { get { throw null; } } public static int DefaultWindowLog { get { throw null; } } public static int MaxQuality { get { throw null; } } public static int MaxWindowLog { get { throw null; } } public static int MinQuality { get { throw null; } } public static int MinWindowLog { get { throw null; } } public System.IO.Compression.XzChecksumType Checksum { get { throw null; } set { } } public int WindowLog { get { throw null; } set { } } public bool EnableExtremeMode { get { throw null; } set { } } public int Quality { get { throw null; } set { } } } public sealed partial class XzDecoder : System.IDisposable { public XzDecoder() { } public XzDecoder(int maxWindowLog) { } public System.Buffers.OperationStatus Decompress(System.ReadOnlySpan<byte> source, System.Span<byte> destination, out int bytesConsumed, out int bytesWritten) { throw null; }

Posted by joshfree on Jun 24, 2016, 1:33 AM

Tags

• support (Software)

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