1 files changed, 28 insertions, 0 deletions
diff --git a/Rx/NET/Source/System.Reactive.PlatformServices/Reactive/Internal/StopwatchImpl.cs b/Rx/NET/Source/System.Reactive.PlatformServices/Reactive/Internal/StopwatchImpl.cs
new file mode 100644
index 0000000..04a4040
--- /dev/null
+++ b/Rx/NET/Source/System.Reactive.PlatformServices/Reactive/Internal/StopwatchImpl.cs
@@ -0,0 +1,28 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+
+#if !NO_STOPWATCH
+using System.Diagnostics;
+
+namespace System.Reactive.Concurrency
+{
+    //
+    // WARNING: This code is kept *identically* in two places. One copy is kept in System.Reactive.Core for non-PLIB platforms.
+    //          Another copy is kept in System.Reactive.PlatformServices to enlighten the default lowest common denominator
+    //          behavior of Rx for PLIB when used on a more capable platform.
+    //
+    internal class /*Default*/StopwatchImpl : IStopwatch
+    {
+        private readonly Stopwatch _sw;
+
+        public StopwatchImpl()
+        {
+            _sw = Stopwatch.StartNew();
+        }
+
+        public TimeSpan Elapsed
+        {
+            get { return _sw.Elapsed; }
+        }
+    }
+}
+#endif
+\ No newline at end of file