1 files changed, 39 insertions, 0 deletions
diff --git a/TrackableFileStream.cs b/TrackableFileStream.cs
new file mode 100644
index 00000000..3ff953dd
--- /dev/null
+++ b/TrackableFileStream.cs
@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+namespace com.clusterrr.util
+{
+    public class TrackableFileStream : FileStream
+    {
+        public delegate void OnProgressDelegate(long Position, long Length);
+        public event OnProgressDelegate OnProgress = delegate { };
+
+        public TrackableFileStream(string path, FileMode mode) : base(path, mode) { }
+
+        public override void Write(byte[] array, int offset, int count)
+        {
+            base.Write(array, offset, count);
+            OnProgress(this.Position, this.Length);
+        }
+        public override void WriteByte(byte value)
+        {
+            base.WriteByte(value);
+            OnProgress(this.Position, this.Length);
+        }
+        public override int Read(byte[] array, int offset, int count)
+        {
+            var r = base.Read(array, offset, count);
+            OnProgress(this.Position, this.Length);
+            return r;
+        }
+        public override int ReadByte()
+        {
+            var r = base.ReadByte();
+            OnProgress(this.Position, this.Length);
+            return r;
+        }
+    }
+}