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Networking/SmartThreadPool/Stopwatch.cs

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+using System;
+
+namespace Amib.Threading.Internal
+{
+    /// <summary>
+    /// Stopwatch class
+    /// Used with WindowsCE and Silverlight which don't have Stopwatch
+    /// </summary>
+    internal class Stopwatch
+    {
+        private long _elapsed;
+        private bool _isRunning;
+        private long _startTimeStamp;
+
+        public Stopwatch()
+        {
+            Reset();
+        }
+
+        private long GetElapsedDateTimeTicks()
+        {
+            long rawElapsedTicks = GetRawElapsedTicks();
+            return rawElapsedTicks;
+        }
+
+        private long GetRawElapsedTicks()
+        {
+            long elapsed = _elapsed;
+            if (_isRunning)
+            {
+                long ticks = GetTimestamp() - _startTimeStamp;
+                elapsed += ticks;
+            }
+            return elapsed;
+        }
+
+        public static long GetTimestamp()
+        {
+            return DateTime.UtcNow.Ticks;
+        }
+
+        public void Reset()
+        {
+           _elapsed = 0L;
+           _isRunning = false;
+           _startTimeStamp = 0L;
+        }
+
+        public void Start()
+        {
+            if (!_isRunning)
+            {
+                _startTimeStamp = GetTimestamp();
+                _isRunning = true;
+            }
+        }
+
+        public static Stopwatch StartNew()
+        {
+            Stopwatch stopwatch = new Stopwatch();
+            stopwatch.Start();
+            return stopwatch;
+        }
+
+        public void Stop()
+        {
+            if (_isRunning)
+            {
+                long ticks = GetTimestamp() - _startTimeStamp;
+                _elapsed += ticks;
+                _isRunning = false;
+            }
+        }
+
+        // Properties
+        public TimeSpan Elapsed
+        {
+            get
+            {
+                return new TimeSpan(GetElapsedDateTimeTicks());
+            }
+        }
+
+        public long ElapsedMilliseconds
+        {
+            get
+            {
+                return (GetElapsedDateTimeTicks() / 0x2710L);
+            }
+        }
+
+        public long ElapsedTicks
+        {
+            get
+            {
+                return GetRawElapsedTicks();
+            }
+        }
+
+        public bool IsRunning
+        {
+            get
+            {
+                return _isRunning;
+            }
+        }
+    }
+}