1 files changed, 23 insertions, 0 deletions
diff --git a/Rx.NET/System.Reactive.Interfaces/Reactive/Concurrency/ISchedulerPeriodic.cs b/Rx.NET/System.Reactive.Interfaces/Reactive/Concurrency/ISchedulerPeriodic.cs
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+++ b/Rx.NET/System.Reactive.Interfaces/Reactive/Concurrency/ISchedulerPeriodic.cs
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+// 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>
+    /// Scheduler with support for running periodic tasks.
+    /// This type of scheduler can be used to run timers more efficiently instead of using recursive scheduling.
+    /// </summary>
+    public interface ISchedulerPeriodic
+    {
+        /// <summary>
+        /// Schedules a periodic piece of work.
+        /// </summary>
+        /// <typeparam name="TState">The type of the state passed to the scheduled action.</typeparam>
+        /// <param name="state">Initial state passed to the action upon the first iteration.</param>
+        /// <param name="period">Period for running the work periodically.</param>
+        /// <param name="action">Action to be executed, potentially updating the state.</param>
+        /// <returns>The disposable object used to cancel the scheduled recurring action (best effort).</returns>
+        IDisposable SchedulePeriodic<TState>(TState state, TimeSpan period, Func<TState, TState> action);
+    }
+}