Use streamable compression (needs file cache clear)

2023-12-18 12:51:36 +00:00
parent 0707d3eb54
commit 8cf4f50091
7 changed files with 297 additions and 141 deletions
--- a/MareSynchronosServer/MareSynchronosStaticFilesServer/Utils/ConcatenatedStreamReader.cs
+++ b/MareSynchronosServer/MareSynchronosStaticFilesServer/Utils/ConcatenatedStreamReader.cs
@@ -0,0 +1,84 @@
+namespace MareSynchronosStaticFilesServer.Utils;
+
+// Concatenates the content of multiple readable streams
+public class ConcatenatedStreamReader : Stream
+{
+    private IEnumerable<Stream> _streams;
+    private IEnumerator<Stream> _iter;
+    private bool _finished;
+    public bool DisposeUnderlying = true;
+
+    public ConcatenatedStreamReader(IEnumerable<Stream> streams)
+    {
+        _streams = streams;
+        _iter = streams.GetEnumerator();
+        _finished = !_iter.MoveNext();
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        if (!DisposeUnderlying)
+            return;
+        foreach (var stream in _streams)
+            stream.Dispose();
+    }
+
+    public override bool CanRead => true;
+    public override bool CanSeek => false;
+    public override bool CanWrite => false;
+    public override long Length => throw new NotSupportedException();
+
+    public override long Position { get => throw new NotSupportedException(); set => throw new NotSupportedException(); }
+
+    public override void Flush()
+    {
+    }
+
+    public override int Read(byte[] buffer, int offset, int count)
+    {
+        int n = 0;
+
+        while (n == 0 && !_finished)
+        {
+            n = _iter.Current.Read(buffer, offset, count);
+
+            if (n == 0)
+                _finished = !_iter.MoveNext();
+        }
+
+        return n;
+    }
+
+    public async override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
+    {
+        int n = 0;
+
+        while (n == 0 && !_finished)
+        {
+            n = await _iter.Current.ReadAsync(buffer, offset, count, cancellationToken);
+
+            if (cancellationToken.IsCancellationRequested)
+                break;
+
+            if (n == 0)
+                _finished = !_iter.MoveNext();
+        }
+
+        return n;
+    }
+
+    public override long Seek(long offset, SeekOrigin origin)
+    {
+        throw new NotSupportedException();
+    }
+
+    public override void SetLength(long value)
+    {
+        throw new NotSupportedException();
+    }
+
+    public override void Write(byte[] buffer, int offset, int count)
+    {
+        throw new NotSupportedException();
+    }
+}