1 files changed, 60 insertions, 0 deletions
diff --git a/Rx/NET/Source/System.Reactive.Linq/Reactive/Concurrency/VirtualTimeScheduler.Extensions.cs b/Rx/NET/Source/System.Reactive.Linq/Reactive/Concurrency/VirtualTimeScheduler.Extensions.cs
new file mode 100644
index 0000000..6501e51
--- /dev/null
+++ b/Rx/NET/Source/System.Reactive.Linq/Reactive/Concurrency/VirtualTimeScheduler.Extensions.cs
@@ -0,0 +1,60 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+
+using System.Reactive.Disposables;
+
+namespace System.Reactive.Concurrency
+{
+    /// <summary>
+    /// Provides a set of extension methods for virtual time scheduling.
+    /// </summary>
+    public static class VirtualTimeSchedulerExtensions
+    {
+        /// <summary>
+        /// Schedules an action to be executed at dueTime.
+        /// </summary>
+        /// <typeparam name="TAbsolute">Absolute time representation type.</typeparam>
+        /// <typeparam name="TRelative">Relative time representation type.</typeparam>
+        /// <param name="scheduler">Scheduler to execute the action on.</param>
+        /// <param name="dueTime">Relative time after which to execute the action.</param>
+        /// <param name="action">Action to be executed.</param>
+        /// <returns>The disposable object used to cancel the scheduled action (best effort).</returns>
+        /// <exception cref="ArgumentNullException"><paramref name="scheduler"/> or <paramref name="action"/> is null.</exception>
+        public static IDisposable ScheduleRelative<TAbsolute, TRelative>(this VirtualTimeSchedulerBase<TAbsolute, TRelative> scheduler, TRelative dueTime, Action action)
+            where TAbsolute : IComparable<TAbsolute>
+        {
+            if (scheduler == null)
+                throw new ArgumentNullException("scheduler");
+            if (action == null)
+                throw new ArgumentNullException("action");
+
+            return scheduler.ScheduleRelative(action, dueTime, Invoke);
+        }
+
+        /// <summary>
+        /// Schedules an action to be executed at dueTime.
+        /// </summary>
+        /// <typeparam name="TAbsolute">Absolute time representation type.</typeparam>
+        /// <typeparam name="TRelative">Relative time representation type.</typeparam>
+        /// <param name="scheduler">Scheduler to execute the action on.</param>
+        /// <param name="dueTime">Absolute time at which to execute the action.</param>
+        /// <param name="action">Action to be executed.</param>
+        /// <returns>The disposable object used to cancel the scheduled action (best effort).</returns>
+        /// <exception cref="ArgumentNullException"><paramref name="scheduler"/> or <paramref name="action"/> is null.</exception>
+        public static IDisposable ScheduleAbsolute<TAbsolute, TRelative>(this VirtualTimeSchedulerBase<TAbsolute, TRelative> scheduler, TAbsolute dueTime, Action action)
+            where TAbsolute : IComparable<TAbsolute>
+        {
+            if (scheduler == null)
+                throw new ArgumentNullException("scheduler");
+            if (action == null)
+                throw new ArgumentNullException("action");
+
+            return scheduler.ScheduleAbsolute(action, dueTime, Invoke);
+        }
+
+        static IDisposable Invoke(IScheduler scheduler, Action action)
+        {
+            action();
+            return Disposable.Empty;
+        }
+    }
+}