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How to use TimeoutEvent class of Microsoft.Coyote.Samples.Monitors package

Best Coyote code snippet using Microsoft.Coyote.Samples.Monitors.TimeoutEvent

FailureDetector.cs

Source:FailureDetector.cs

...92        [OnEntry(nameof(SendPingOnEntry))]93        [OnEventGotoState(typeof(RoundDone), typeof(Reset))]94        [OnEventPushState(typeof(TimerCancelled), typeof(WaitForCancelResponse))]95        [OnEventDoAction(typeof(Node.Pong), nameof(PongAction))]96        [OnEventDoAction(typeof(Timer.TimeoutEvent), nameof(TimeoutAction))]97        private class SendPing : State { }98        private void SendPingOnEntry()99        {100            foreach (var node in this.Nodes)101            {102                // Sends a 'Ping' event to any machine that has not responded.103                if (this.Alive.Contains(node) && !this.Responses.Contains(node))104                {105                    this.Monitor<Safety>(new Safety.Ping(node));106                    this.SendEvent(node, new Node.Ping(this.Id));107                }108            }109            // Starts the timer with a given timeout value. Note that in this sample,110            // the timeout value is not actually used, because the timer is abstracted111            // away using Coyote to enable systematic testing (i.e. timeouts are triggered112            // nondeterministically). In production, this model timer machine will be113            // replaced by a real timer.114            this.SendEvent(this.Timer, new Timer.StartTimerEvent(100));115        }116        /// <summary>117        /// This action is triggered whenever a node replies with a 'Pong' event.118        /// </summary>119        private void PongAction(Event e)120        {121            var node = (e as Node.Pong).Node;122            if (this.Alive.Contains(node))123            {124                this.Responses.Add(node);125                // Checks if the status of alive nodes has changed.126                if (this.Responses.Count == this.Alive.Count)127                {128                    this.SendEvent(this.Timer, new Timer.CancelTimerEvent());129                    this.RaiseEvent(new TimerCancelled());130                }131            }132        }133        private void TimeoutAction()134        {135            // One attempt is done for this round.136            this.Attempts++;137            // Each round has a maximum number of 2 attempts.138            if (this.Responses.Count < this.Alive.Count && this.Attempts < 2)139            {140                // Retry by looping back to same state.141                this.RaiseGotoStateEvent<SendPing>();142                return;143            }144            foreach (var node in this.Nodes)145            {146                if (this.Alive.Contains(node) && !this.Responses.Contains(node))147                {148                    this.Alive.Remove(node);149                    // Send failure notification to any clients.150                    foreach (var client in this.Clients)151                    {152                        this.SendEvent(client, new NodeFailed(node));153                    }154                }155            }156            this.RaiseEvent(new RoundDone());157        }158        [OnEventDoAction(typeof(Timer.CancelSuccess), nameof(CancelSuccessAction))]159        [OnEventDoAction(typeof(Timer.CancelFailure), nameof(CancelFailure))]160        [DeferEvents(typeof(Timer.TimeoutEvent), typeof(Node.Pong))]161        private class WaitForCancelResponse : State { }162        private void CancelSuccessAction()163        {164            this.RaiseEvent(new RoundDone());165        }166        private void CancelFailure()167        {168            this.RaisePopStateEvent();169        }170        [OnEntry(nameof(ResetOnEntry))]171        [OnEventGotoState(typeof(Timer.TimeoutEvent), typeof(SendPing))]172        [IgnoreEvents(typeof(Node.Pong))]173        private class Reset : State { }174        /// <summary>175        /// Prepares the failure detector for the next round.176        /// </summary>177        private void ResetOnEntry()178        {179            this.Attempts = 0;180            this.Responses.Clear();181            // Starts the timer with a given timeout value (see details above).182            this.SendEvent(this.Timer, new Timer.StartTimerEvent(1000));183        }184    }185}...

Timer.cs

Source:Timer.cs

...31            {32                this.Timeout = timeout;33            }34        }35        internal class TimeoutEvent : Event { }36        internal class CancelSuccess : Event { }37        internal class CancelFailure : Event { }38        internal class CancelTimerEvent : Event { }39        /// <summary>40        /// Reference to the owner of the timer.41        /// </summary>42        private ActorId Target;43        [Start]44        [OnEntry(nameof(InitOnEntry))]45        private class Init : State { }46        /// <summary>47        /// When it enters the 'Init' state, the timer receives a reference to48        /// the target machine, and then transitions to the 'WaitForReq' state.49        /// </summary>50        private void InitOnEntry(Event e)51        {52            this.Target = (e as Config).Target;53            this.RaiseGotoStateEvent<WaitForReq>();54        }55        /// <summary>56        /// The timer waits in the 'WaitForReq' state for a request from the client.57        ///58        /// It responds with a 'CancelFailure' event on a 'CancelTimer' event.59        ///60        /// It transitions to the 'WaitForCancel' state on a 'StartTimerEvent' event.61        /// </summary>62        [OnEventGotoState(typeof(CancelTimerEvent), typeof(WaitForReq), nameof(CancelTimerAction))]63        [OnEventGotoState(typeof(StartTimerEvent), typeof(WaitForCancel))]64        private class WaitForReq : State { }65        private void CancelTimerAction()66        {67            this.SendEvent(this.Target, new CancelFailure());68        }69        /// <summary>70        /// In the 'WaitForCancel' state, any 'StartTimerEvent' event is dequeued and dropped without any71        /// action (indicated by the 'IgnoreEvents' declaration).72        /// </summary>73        [IgnoreEvents(typeof(StartTimerEvent))]74        [OnEventGotoState(typeof(CancelTimerEvent), typeof(WaitForReq), nameof(CancelTimerAction2))]75        [OnEventGotoState(typeof(DefaultEvent), typeof(WaitForReq), nameof(DefaultAction))]76        private class WaitForCancel : State { }77        private void DefaultAction()78        {79            this.SendEvent(this.Target, new TimeoutEvent());80        }81        /// <summary>82        /// The response to a 'CancelTimer' event is nondeterministic. During testing, Coyote will83        /// take control of this source of nondeterminism and explore different execution paths.84        ///85        /// Using this approach, we model the race condition between the arrival of a 'CancelTimer'86        /// event from the target and the elapse of the timer.87        /// </summary>88        private void CancelTimerAction2()89        {90            // A nondeterministic choice that is controlled by the Coyote runtime during testing.91            if (this.RandomBoolean())92            {93                this.SendEvent(this.Target, new CancelSuccess());94            }95            else96            {97                this.SendEvent(this.Target, new CancelFailure());98                this.SendEvent(this.Target, new TimeoutEvent());99            }100        }101    }102}...

TimeoutEvent

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Samples.Monitors;5{6    {7        static async Task Main(string[] args)8        {9            var timeoutEvent = new TimeoutEvent(TimeSpan.FromSeconds(1));10            await Runtime.RunAsync(timeoutEvent, async () =>11            {12                await Task.Delay(TimeSpan.FromSeconds(5));13            });14        }15    }16}17[1] [INFO]  [2020-10-03 10:31:52.754] [1] [Program] [Main] Program.cs(22,0): Program.Main() - [Monitor] Received event of type 'Microsoft

TimeoutEvent

Using AI Code Generation

1using Microsoft.Coyote.Samples.Monitors;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            Console.WriteLine("Hello World!");9            await TimeoutEvent.WaitAsync(TimeSpan.FromSeconds(10));10        }11    }12}13using Microsoft.Coyote.Samples.Monitors;14using System;15using System.Threading.Tasks;16{17    {18        static async Task Main(string[] args)19        {20            Console.WriteLine("Hello World!");21            await TimeoutEvent.WaitAsync(TimeSpan.FromSeconds(10));22        }23    }24}

TimeoutEvent

Using AI Code Generation

1using Microsoft.Coyote.Samples.Monitors;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            Console.WriteLine("Hello World!");9            var timeout = new TimeoutEvent(1000);10            await Task.Delay(2000);11            Console.WriteLine("Done!");12        }13    }14}15using Microsoft.Coyote.Samples.Monitors;16using System;17using System.Threading.Tasks;18{19    {20        static async Task Main(string[] args)21        {22            Console.WriteLine("Hello World!");23            var timeout = new TimeoutEvent(1000);24            timeout.RegisterHandler(() => Console.WriteLine("Done!"));25            await Task.Delay(2000);26            Console.WriteLine("Done!");27        }28    }29}

TimeoutEvent

Using AI Code Generation

1using Microsoft.Coyote.Samples.Monitors;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            Console.WriteLine("Hello World!");9            var timeout = new TimeoutEvent(TimeSpan.FromSeconds(5));10            Console.WriteLine("Timeout Event created");11            Task.Delay(1000).Wait();12            timeout.Cancel();13            Console.WriteLine("Timeout Event cancelled");14            Task.Delay(1000).Wait();15        }16    }17}18   at Microsoft.Coyote.Runtime.Scheduling.ActorExecutionContext.CreateActor(ActorId actorId, Type type, Object[] args)19   at Microsoft.Coyote.Runtime.Scheduling.ActorExecutionContext.CreateActor(Type type, Object[] args)20   at Microsoft.Coyote.Runtime.Scheduling.ActorExecutionContext.CreateActor(Type type)21   at Microsoft.Coyote.Runtime.Scheduling.ActorExecutionContext.CreateActor(Type type)22   at Microsoft.Coyote.Samples.Monitors.TimeoutEvent..ctor(TimeSpan timeSpan)23   at CoyoteTest1.Program.Main(String[] args) in C:\Users\jason\source\repos\CoyoteTest1\CoyoteTest1\Program.cs:line 15

TimeoutEvent

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.Samples.Monitors;5{6    {7        internal static async Task Main(string[] args)8        {9            var config = Configuration.Create();10            config.EnableMonitors = true;11            config.EnableCycleDetection = true;12            config.EnableDataRaceDetection = true;13            config.EnableDeadlockDetection = true;14            config.EnableOperationCanceledExceptionSupport = true;15            config.EnableObjectTracking = true;16            config.EnableActorTracking = true;17            config.EnableStateGraphs = true;18            config.EnableActorLogging = true;19            config.EnableActorTracing = true;20            config.EnableAssertionFailureDebugging = true;21            config.EnableGCMonitoring = true;22            config.EnableCoverageCollection = true;23            config.EnableHotStateDetection = true;24            config.EnableHotStateLogging = true;25            await Microsoft.Coyote.Runtime.CoyoteRuntime.RunAsync(config, async () =>26            {27                var actor = Actor.Create<TimeoutActor>(new ActorId("TimeoutActor"));28                await actor.Event(Task.Delay(1000));29                await actor.Event(Task.Delay(1000));30                await actor.Event(Task.Delay(1000));31                await actor.Event(Task.Delay(1000));32            });33        }34    }35    {36        private readonly MonitorId _timeoutMonitor;37        internal TimeoutActor(MonitorId timeoutMonitor)38        {39            this._timeoutMonitor = timeoutMonitor;40        }41        [OnEventDoAction(typeof(Task), nameof(HandleTimeout))]42        {43        }44        [OnEventDoAction(typeof(Task), nameof(HandleTimeout))]45        {46        }47        private void HandleTimeout()48        {49            this.RaiseGotoStateEvent<Waiting>();50        }51        protected override Task OnInitializeAsync(Event initialEvent)52        {53            this.Monitor<TimeoutMonitor>(this._timeoutMonitor, new TimeoutEvent(1000, this.Id));54            return Task.CompletedTask;55        }56        protected override Task OnHaltAsync()57        {58            this.Monitor<TimeoutMonitor>(this._timeoutMonitor, new CancelTimeoutEvent(this.Id));59            return Task.CompletedTask;60        }61    }62}

TimeoutEvent

Using AI Code Generation

1using Microsoft.Coyote.Samples.Monitors;2using System;3using System.Threading;4{5    {6        static void Main(string[] args)7        {8            Console.WriteLine("Hello World!");9            using (var timeoutEvent = new TimeoutEvent(TimeSpan.FromSeconds(2)))10            {11                Console.WriteLine("Waiting for 5 seconds");12                Thread.Sleep(5000);13                Console.WriteLine("5 seconds passed");14            }15        }16    }17}

TimeoutEvent

Using AI Code Generation

1using Microsoft.Coyote.Samples.Monitors;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            TimeoutEvent timeoutEvent = new TimeoutEvent(2000);9            TimeoutEvent timeoutEvent2 = new TimeoutEvent(3000);10            TimeoutEvent timeoutEvent3 = new TimeoutEvent(4000);11            TimeoutEvent timeoutEvent4 = new TimeoutEvent(5000);12            TimeoutEvent timeoutEvent5 = new TimeoutEvent(6000);13            TimeoutEvent timeoutEvent6 = new TimeoutEvent(7000);14            TimeoutEvent timeoutEvent7 = new TimeoutEvent(8000);15            TimeoutEvent timeoutEvent8 = new TimeoutEvent(9000);16            TimeoutEvent timeoutEvent9 = new TimeoutEvent(10000);17            TimeoutEvent timeoutEvent10 = new TimeoutEvent(11000);18            TimeoutEvent timeoutEvent11 = new TimeoutEvent(12000);19            TimeoutEvent timeoutEvent12 = new TimeoutEvent(13000);20            TimeoutEvent timeoutEvent13 = new TimeoutEvent(14000);21            TimeoutEvent timeoutEvent14 = new TimeoutEvent(15000);22            TimeoutEvent timeoutEvent15 = new TimeoutEvent(16000);23            TimeoutEvent timeoutEvent16 = new TimeoutEvent(17000);24            TimeoutEvent timeoutEvent17 = new TimeoutEvent(18000);25            TimeoutEvent timeoutEvent18 = new TimeoutEvent(19000);26            TimeoutEvent timeoutEvent19 = new TimeoutEvent(20000);27            TimeoutEvent timeoutEvent20 = new TimeoutEvent(21000);28            TimeoutEvent timeoutEvent21 = new TimeoutEvent(22000);29            TimeoutEvent timeoutEvent22 = new TimeoutEvent(23000);30            TimeoutEvent timeoutEvent23 = new TimeoutEvent(24000);31            TimeoutEvent timeoutEvent24 = new TimeoutEvent(25000);32            TimeoutEvent timeoutEvent25 = new TimeoutEvent(26000);33            TimeoutEvent timeoutEvent26 = new TimeoutEvent(27000);34            TimeoutEvent timeoutEvent27 = new TimeoutEvent(28000);35            TimeoutEvent timeoutEvent28 = new TimeoutEvent(29000);36            TimeoutEvent timeoutEvent29 = new TimeoutEvent(30000);37            TimeoutEvent timeoutEvent30 = new TimeoutEvent(31000);38            TimeoutEvent timeoutEvent31 = new TimeoutEvent(32000);39            TimeoutEvent timeoutEvent32 = new TimeoutEvent(33000);40            TimeoutEvent timeoutEvent33 = new TimeoutEvent(34000

TimeoutEvent

Using AI Code Generation

1using Microsoft.Coyote.Samples.Monitors;2using System;3{4    {5        static void Main(string[] args)6        {7            TimeoutEvent timeoutEvent = new TimeoutEvent(1000);8            DateTime startTime = DateTime.Now;9            timeoutEvent.Wait();10            DateTime endTime = DateTime.Now;11            TimeSpan elapsedTime = endTime - startTime;12            Console.WriteLine("Time elapsed: {0} milliseconds", elapsedTime.TotalMilliseconds);13        }14    }15}

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