| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| using System; |
| using Org.Apache.REEF.Tang.Annotations; |
| using Org.Apache.REEF.Wake.Time.Event; |
| using Org.Apache.REEF.Wake.Time.Runtime; |
| |
| namespace Org.Apache.REEF.Wake.Time |
| { |
| [DefaultImplementation(typeof(RuntimeClock))] |
| public interface IClock : IDisposable |
| { |
| /// <summary> |
| /// Schedule a TimerEvent at the given future offset |
| /// </summary> |
| /// <param name="offset">The offset in the future to schedule the alarm</param> |
| /// <param name="handler">The IObserver to to be called</param> |
| void ScheduleAlarm(long offset, IObserver<Alarm> handler); |
| |
| /// <summary> |
| /// Clock is idle if it has no future alarms set |
| /// </summary> |
| /// <returns>True if no future alarms are set, otherwise false</returns> |
| bool IsIdle(); |
| |
| /// <summary> |
| /// Start the Clock. |
| /// </summary> |
| /// <remarks> |
| /// The clock will continue to run and handle events until it has been disposed. |
| /// </remarks> |
| void Run(); |
| } |
| } |