Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/class/System.IO.Compression/SharpCompress/Reader/IReader.cs

@@ -0,0 +1,34 @@
+using System;
+using System.IO;
+using SharpCompress.Common;
+
+namespace SharpCompress.Reader
+{
+    internal interface IReader : IDisposable
+    {
+        event EventHandler<CompressedBytesReadEventArgs> CompressedBytesRead;
+        event EventHandler<FilePartExtractionBeginEventArgs> FilePartExtractionBegin;
+
+        ArchiveType ArchiveType { get; }
+
+        IEntry Entry { get; }
+
+        /// <summary>
+        /// Decompresses the current entry to the stream.  This cannot be called twice for the current entry.
+        /// </summary>
+        /// <param name="writableStream"></param>
+        void WriteEntryTo(Stream writableStream);
+
+        /// <summary>
+        /// Moves to the next entry by reading more data from the underlying stream.  This skips if data has not been read.
+        /// </summary>
+        /// <returns></returns>
+        bool MoveToNextEntry();
+
+        /// <summary>
+        /// Opens the current entry as a stream that will decompress as it is read.
+        /// Read the entire stream or use SkipEntry on EntryStream.
+        /// </summary>
+        EntryStream OpenEntryStream();
+    }
+}