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

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

FailureDetector.cs

Source:FailureDetector.cs

...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

...23        /// Although this event accepts a timeout value, because24        /// this machine models a timer by nondeterministically25        /// triggering a timeout, this value is not used.26        /// </summary>27        internal class StartTimerEvent : Event28        {29            public int Timeout;30            public StartTimerEvent(int timeout)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>...

StartTimerEvent

Using AI Code Generation

1using Microsoft.Coyote.Samples.Monitors;2using Microsoft.CoyoteActors;3using Microsoft.CoyoteActors.Runtime;4using System;5using System.Collections.Generic;6using System.Linq;7using System.Text;8using System.Threading.Tasks;9{10    {11        static void Main(string[] args)12        {13            var runtime = RuntimeFactory.Create();14            runtime.CreateActor(typeof(Actor1));15            runtime.Run();16        }17    }18    {19        protected override async Task OnInitializeAsync(Event initialEvent)20        {21            await this.StartTimerAsync(new StartTimerEvent("T1", 2000, new TimeoutEvent()), 0);22            await this.StartTimerAsync(new StartTimerEvent("T2", 1000, new TimeoutEvent()), 0);23        }24        protected override Task OnEventAsync(Event e)25        {26            if (e is TimeoutEvent)27            {28                Console.WriteLine("Timer {0} timeout", (e as TimeoutEvent).TimerName);29            }30            return Task.CompletedTask;31        }32    }33}

StartTimerEvent

Using AI Code Generation

1{2    using Microsoft.Coyote;3    using Microsoft.Coyote.Actors;4    using Microsoft.Coyote.SystematicTesting;5    using Microsoft.Coyote.Tasks;6    using System;7    using System.Threading.Tasks;8    {9        public StartTimerEvent(int delay)10        {11            this.Delay = delay;12        }13        public int Delay { get; }14    }15    {16        private int Delay;17        [OnEventDoAction(typeof(StartTimerEvent), nameof(ProcessStartTimerEvent))]18        [OnEventDoAction(typeof(Default), nameof(ProcessDefault))]19        private class Init : State { }20        private void ProcessStartTimerEvent(Event e)21        {22            this.Delay = (e as StartTimerEvent).Delay;23            this.RaiseGotoStateEvent<Active>();24        }25        private void ProcessDefault()26        {27            this.SendEvent(this.Id, new Halt());28        }29        [OnEntry(nameof(OnEntryActive))]30        [OnEventDoAction(typeof(Default), nameof(ProcessDefault))]31        private class Active : State { }32        private void OnEntryActive()33        {34            this.SendEvent(this.Id, new Default(), this.Delay);35        }36    }37}38{39    using Microsoft.Coyote;40    using Microsoft.Coyote.Actors;41    using Microsoft.Coyote.SystematicTesting;42    using Microsoft.Coyote.Tasks;43    using System;44    using System.Threading.Tasks;45    {46        [OnEventDoAction(typeof(Default), nameof(ProcessDefault))]47        private class Init : State { }48        private void ProcessDefault()49        {50            this.RaiseGotoStateEvent<Active>();51        }52        [OnEventDoAction(typeof(StartTimerEvent), nameof(ProcessStartTimerEvent))]53        private class Active : State { }54        private void ProcessStartTimerEvent(Event e)55        {56            var startTimerEvent = e as StartTimerEvent;57            this.SendEvent(new TimerActor(), startTimerEvent);58        }59    }60}61{62    using Microsoft.Coyote;63    using Microsoft.Coyote.Actors;64    using Microsoft.Coyote.SystematicTesting;

StartTimerEvent

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Samples.Monitors;5using Microsoft.Coyote.Tasks;6{7    {8        static void Main(string[] args)9        {10            Console.WriteLine("Hello World!");11            Task t = Task.Run(async () =>12            {13                await Task.Delay(1000);14                Console.WriteLine("Hello World! 1");15                await Task.Delay(1000);16                Console.WriteLine("Hello World! 2");17                await Task.Delay(1000);18                Console.WriteLine("Hello World! 3");19                await Task.Delay(1000);20                Console.WriteLine("Hello World! 4");21            });22            t.Wait();23            Console.WriteLine("Hello World! 5");24        }25    }26}27using System;28using System.Threading.Tasks;29using Microsoft.Coyote;30using Microsoft.Coyote.Samples.Monitors;31using Microsoft.Coyote.Tasks;32{33    {34        static void Main(string[] args)35        {36            Console.WriteLine("Hello World!");37            Task t = Task.Run(async () =>38            {39                await Task.Delay(1000);40                Console.WriteLine("Hello World! 1");41                await Task.Delay(1000);42                Console.WriteLine("Hello World! 2");43                await Task.Delay(1000);44                Console.WriteLine("Hello World! 3");45                await Task.Delay(1000);46                Console.WriteLine("Hello World! 4");47            });48            t.Wait();49            Console.WriteLine("Hello World! 5");50        }51    }52}53using System;54using System.Threading.Tasks;55using Microsoft.Coyote;56using Microsoft.Coyote.Samples.Monitors;57using Microsoft.Coyote.Tasks;58{59    {60        static void Main(string[] args)61        {62            Console.WriteLine("Hello World!");63            Task t = Task.Run(async () =>64            {65                await Task.Delay(1000);66                Console.WriteLine("Hello World! 1");67                await Task.Delay(1000);68                Console.WriteLine("Hello World! 2");69                await Task.Delay(1000);

StartTimerEvent

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Samples.Monitors;6using Microsoft.Coyote.Tasks;7{8    {9        public ActorId ActorId;10        public int Delay;11        public StartTimerEvent(ActorId actorId, int delay)12        {13            this.ActorId = actorId;14            this.Delay = delay;15        }16    }17    {18        public ActorId ActorId;19        public StopTimerEvent(ActorId actorId)20        {21            this.ActorId = actorId;22        }23    }24    {25        public ActorId ActorId;26        public TimerEvent(ActorId actorId)27        {28            this.ActorId = actorId;29        }30    }31    {32        private ActorId TimerId;33        private TaskCompletionSource<bool> tcs;34        public Actor1(TaskCompletionSource<bool> tcs)35        {36            this.tcs = tcs;37        }38        protected override Task OnInitializeAsync(Event initialEvent)39        {40            this.TimerId = this.CreateActor(typeof(TimerActor));41            this.SendEvent(this.TimerId, new StartTimerEvent(this.Id, 100));42            return Task.CompletedTask;43        }44        protected override Task OnEventAsync(Event e)45        {46            if (e is TimerEvent)47            {48                this.SendEvent(this.TimerId, new StopTimerEvent(this.Id));49                this.tcs.SetResult(true);50            }51            return Task.CompletedTask;52        }53    }54    {55        private ActorId ActorId;56        private int Delay;57        private TaskCompletionSource<bool> tcs;58        protected override Task OnEventAsync(Event e)59        {60            if (e is StartTimerEvent)61            {62                this.ActorId = (e as StartTimerEvent).ActorId;63                this.Delay = (e as StartTimerEvent).Delay;64                this.tcs = new TaskCompletionSource<bool>();65                this.SendEvent(this.Id, new HaltEvent(), this.tcs.Task);66                this.SendEvent(this.Id, new TimerEvent(this.ActorId), this.Delay);67            }68            else if (e is StopTimerEvent)69            {70                this.tcs.SetResult(true);71            }

StartTimerEvent

Using AI Code Generation

1using Microsoft.Coyote;2using Microsoft.Coyote.Samples.Monitors;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            await Runtime.RunAsync(async () =>9            {10                await Task.Delay(1000);11            });12        }13    }14}15using Microsoft.Coyote;16using Microsoft.Coyote.Samples.Monitors;17using System.Threading.Tasks;18{19    {20        static async Task Main(string[] args)21        {22            await Runtime.RunAsync(async () =>23            {24                await Task.Delay(1000);25            });26        }27    }28}29using Microsoft.Coyote;30using Microsoft.Coyote.Samples.Monitors;31using System.Threading.Tasks;32{33    {34        static async Task Main(string[] args)35        {36            await Runtime.RunAsync(async () =>37            {38                await Task.Delay(1000);39            });40        }41    }42}43using Microsoft.Coyote;44using Microsoft.Coyote.Samples.Monitors;45using System.Threading.Tasks;46{47    {48        static async Task Main(string[] args)49        {50            await Runtime.RunAsync(async () =>51            {52                await Task.Delay(1000);53            });54        }55    }56}57using Microsoft.Coyote;58using Microsoft.Coyote.Samples.Monitors;59using System.Threading.Tasks;60{61    {62        static async Task Main(string[] args)63        {64            await Runtime.RunAsync(async () =>65            {66                await Task.Delay(1000);67            });68        }69    }70}71using Microsoft.Coyote;72using Microsoft.Coyote.Samples.Monitors;73using System.Threading.Tasks;

StartTimerEvent

Using AI Code Generation

1using Microsoft.Coyote.Samples.Monitors;2using Microsoft.Coyote.Actors;3using System;4using System.Threading.Tasks;5{6    {7        static void Main(string[] args)8        {9            var config = Configuration.Create();10            config.EnableMonitors = true;11            config.EnableActorLogging = true;12            config.EnableActorTracing = true;13            config.EnableActorStateLogging = true;14            config.EnableActorStateTracing = true;15            config.EnableActorTaskTracing = true;16            config.EnableActorTaskLogging = true;17            config.EnableOperationLogging = true;18            config.EnableOperationTracing = true;19            config.EnableOperationGroupLogging = true;20            config.EnableOperationGroupTracing = true;21            config.EnableStateTransitionLogging = true;22            config.EnableStateTransitionTracing = true;23            config.EnableStateTransitionGroupLogging = true;24            config.EnableStateTransitionGroupTracing = true;25            config.EnableStateSnapshotLogging = true;26            config.EnableStateSnapshotTracing = true;27            config.EnableStateSnapshotGroupLogging = true;28            config.EnableStateSnapshotGroupTracing = true;29            config.EnableStateStackLogging = true;30            config.EnableStateStackTracing = true;31            config.EnableStateStackGroupLogging = true;32            config.EnableStateStackGroupTracing = true;33            config.EnableEventLogging = true;34            config.EnableEventTracing = true;35            config.EnableEventGroupLogging = true;36            config.EnableEventGroupTracing = true;37            config.EnableMachineLogging = true;38            config.EnableMachineTracing = true;39            config.EnableMachineStateLogging = true;40            config.EnableMachineStateTracing = true;41            config.EnableMachineTaskTracing = true;42            config.EnableMachineTaskLogging = true;43            config.EnableMachineActionLogging = true;44            config.EnableMachineActionTracing = true;45            config.EnableMachineActionGroupLogging = true;46            config.EnableMachineActionGroupTracing = true;47            config.EnableMachineStateTransitionLogging = true;48            config.EnableMachineStateTransitionTracing = true;49            config.EnableMachineStateTransitionGroupLogging = true;50            config.EnableMachineStateTransitionGroupTracing = true;51            config.EnableMachineStateSnapshotLogging = true;52            config.EnableMachineStateSnapshotTracing = true;53            config.EnableMachineStateSnapshotGroupLogging = true;54            config.EnableMachineStateSnapshotGroupTracing = true;

StartTimerEvent

Using AI Code Generation

1using Microsoft.Coyote.Samples.Monitors;2using Microsoft.Coyote.Tasks;3using System;4using System.Threading.Tasks;5{6    {7        public static async Task Main(string[] args)8        {9            var startTimerEvent = new StartTimerEvent();10            startTimerEvent.StartTimer();11            await Task.Delay(1000);12            var stopTimerEvent = new StopTimerEvent();13            stopTimerEvent.StopTimer();14            Console.WriteLine("Elapsed time: " + stopTimerEvent.ElapsedTime);15        }16    }17}18using Microsoft.Coyote.Samples.Monitors;19using Microsoft.Coyote.Tasks;20using System;21using System.Threading.Tasks;22{23    {24        public static async Task Main(string[] args)25        {26            var startTimerEvent = new StartTimerEvent();27            startTimerEvent.StartTimer();28            await Task.Delay(1000);29            var stopTimerEvent = new StopTimerEvent();30            stopTimerEvent.StopTimer();31            Console.WriteLine("Elapsed time: " + stopTimerEvent.ElapsedTime);32        }33    }34}35using Microsoft.Coyote.Samples.Monitors;36using Microsoft.Coyote.Tasks;37using System;38using System.Threading.Tasks;39{40    {41        public static async Task Main(string[] args)42        {43            var startTimerEvent = new StartTimerEvent();44            startTimerEvent.StartTimer();45            await Task.Delay(1000);46            var stopTimerEvent = new StopTimerEvent();47            stopTimerEvent.StopTimer();48            Console.WriteLine("Elapsed time: " + stopTimerEvent.ElapsedTime);49        }50    }51}

StartTimerEvent

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            StartTimerEvent timer = new StartTimerEvent();9            timer.StartTimer(5);10            Console.WriteLine("Timer started");11            Task.Delay(6000).Wait();12            Console.WriteLine("Timer ended");13        }14    }15}16using Microsoft.Coyote.Samples.Monitors;17using System;18using System.Threading.Tasks;19{20    {21        static void Main(string[] args)22        {23            StartTimerEvent timer = new StartTimerEvent();24            timer.StartTimer(5, "Timer ended");25            Console.WriteLine("Timer started");26            Task.Delay(6000).Wait();27        }28        private static void TimerEnded(string message)29        {30            Console.WriteLine(message);31        }32    }33}34using Microsoft.Coyote.Samples.Monitors;35using System;36using System.Threading.Tasks;37{38    {39        static void Main(string[] args)40        {41            StartTimerEvent timer = new StartTimerEvent();42            timer.StartTimer(5, 5, "Timer ended");43            Console.WriteLine("Timer started");44            Task.Delay(6000).Wait();45        }46        private static void TimerEnded(string message)47        {48            Console.WriteLine(message);49        }50    }51}

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