Http2MessageBody.TryRead TryStart/TryStop

Author: benaadams

src/Servers/Kestrel/Core/src/Internal/Http2/Http2MessageBody.cs

@@ -69,11 +69,23 @@ public override void AdvanceTo(SequencePosition consumed, SequencePosition exami
 
         public override bool TryRead(out ReadResult readResult)
         {
-            var result = _context.RequestBodyPipe.Reader.TryRead(out readResult);
-            _readResult = readResult;
-            CountBytesRead(readResult.Buffer.Length);
+            TryStart();
+
+            var hasResult = _context.RequestBodyPipe.Reader.TryRead(out readResult);
+
+            if (hasResult)
+            {
+                _readResult = readResult;
+
+                CountBytesRead(readResult.Buffer.Length);
+
+                if (readResult.IsCompleted)
+                {
+                    TryStop();
+                }
+            }
 
-            return result;
+            return hasResult;
         }
 
         public override async ValueTask<ReadResult> ReadAsync(CancellationToken cancellationToken = default)