OneDrive Backup

2023-07-28 22:36:06 +07:00
parent e1c6e91a0a
commit d70d81ebdf
244 changed files with 75229 additions and 0 deletions
@@ -0,0 +1,49 @@
+using System.Diagnostics;
+
+namespace onedrive_backup.Graph
+{
+    public class TransferSpeedHelper
+    {
+        private Stopwatch _stopWatch = new Stopwatch();
+        private double _prevProgress = 0;
+        private double _prevTimeStamp = 0;
+        private double _speedCap;
+
+        public TransferSpeedHelper(double? speedCapKBSec) 
+        {
+            _speedCap = speedCapKBSec != null ? speedCapKBSec.Value * 1024 : double.MaxValue;
+        }
+        public void Start()
+        {
+            Reset();
+            _stopWatch.Start();
+        }
+
+        public void Reset()
+        {
+            _stopWatch.Reset();
+            _prevTimeStamp = 0;
+            _prevProgress = 0;
+        }
+
+        public (double delay, double ratePerSecond) MarkAndCalcThrottle(double progress)
+        {
+            double bytesTransfered = progress - _prevProgress;
+            var ellapsedMS = _stopWatch.ElapsedMilliseconds;
+            double timefromPrev = ellapsedMS - _prevTimeStamp;
+            double ratePerSecond = 1000 * bytesTransfered / timefromPrev;
+			
+            _prevTimeStamp = ellapsedMS;
+			_prevProgress = progress;
+			
+            if (ratePerSecond > _speedCap)
+            {
+                var targetTimeForSpeedMS = (bytesTransfered / _speedCap) * 1000;
+                var remainingTimeToWait = targetTimeForSpeedMS - _prevTimeStamp;
+                return (remainingTimeToWait, ratePerSecond);
+            }
+
+            return (0, ratePerSecond);
+        }
+    }
+}