divide async and sync into new files

2026-10-10 07:38:03 +00:00 · 2026-01-22 13:38:20 +00:00
parent c5d7407919
commit a8f47237d7
174 changed files with 9313 additions and 7965 deletions
--- a/src/SharpCompress/IO/SourceStream.Async.cs
+++ b/src/SharpCompress/IO/SourceStream.Async.cs
@@ -0,0 +1,110 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace SharpCompress.IO;
+
+public partial class SourceStream
+{
+    public override async Task<int> ReadAsync(
+        byte[] buffer,
+        int offset,
+        int count,
+        CancellationToken cancellationToken
+    )
+    {
+        if (count <= 0)
+        {
+            return 0;
+        }
+
+        var total = count;
+        var r = -1;
+
+        while (count != 0 && r != 0)
+        {
+            r = await Current
+                .ReadAsync(
+                    buffer,
+                    offset,
+                    (int)Math.Min(count, Current.Length - Current.Position),
+                    cancellationToken
+                )
+                .ConfigureAwait(false);
+            count -= r;
+            offset += r;
+
+            if (!IsVolumes && count != 0 && Current.Position == Current.Length)
+            {
+                var length = Current.Length;
+
+                // Load next file if present
+                if (!SetStream(_stream + 1))
+                {
+                    break;
+                }
+
+                // Current stream switched
+                // Add length of previous stream
+                _prevSize += length;
+                Current.Seek(0, SeekOrigin.Begin);
+                r = -1; //BugFix: reset to allow loop if count is still not 0 - was breaking split zipx (lzma xz etc)
+            }
+        }
+
+        return total - count;
+    }
+
+#if !LEGACY_DOTNET
+
+    public override async ValueTask<int> ReadAsync(
+        Memory<byte> buffer,
+        CancellationToken cancellationToken = default
+    )
+    {
+        if (buffer.Length <= 0)
+        {
+            return 0;
+        }
+
+        var total = buffer.Length;
+        var count = buffer.Length;
+        var offset = 0;
+        var r = -1;
+
+        while (count != 0 && r != 0)
+        {
+            r = await Current
+                .ReadAsync(
+                    buffer.Slice(offset, (int)Math.Min(count, Current.Length - Current.Position)),
+                    cancellationToken
+                )
+                .ConfigureAwait(false);
+            count -= r;
+            offset += r;
+
+            if (!IsVolumes && count != 0 && Current.Position == Current.Length)
+            {
+                var length = Current.Length;
+
+                // Load next file if present
+                if (!SetStream(_stream + 1))
+                {
+                    break;
+                }
+
+                // Current stream switched
+                // Add length of previous stream
+                _prevSize += length;
+                Current.Seek(0, SeekOrigin.Begin);
+                r = -1;
+            }
+        }
+
+        return total - count;
+    }
+#endif
+}