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How to use Stop method of Microsoft.Coyote.Samples.CoffeeMachineTasks.ControlledTimer class

Best Coyote code snippet using Microsoft.Coyote.Samples.CoffeeMachineTasks.ControlledTimer.Stop

MockSensors.cs

Source:MockSensors.cs

...100            this.WaterHeaterTimer = new ControlledTimer("WaterHeaterTimer", TimeSpan.FromSeconds(0.1), this.MonitorWaterTemperature);101        }102        public Task TerminateAsync()103        {104            StopTimer(this.WaterHeaterTimer);105            StopTimer(this.CoffeeLevelTimer);106            StopTimer(this.ShotTimer);107            return Task.CompletedTask;108        }109        public async Task<bool> GetPowerSwitchAsync()110        {111            // to model real async behavior we insert a delay here.112            await Task.Delay(1);113            return this.PowerOn;114        }115        public async Task<double> GetWaterLevelAsync()116        {117            await Task.Delay(1);118            return this.WaterLevel;119        }120        public async Task<double> GetHopperLevelAsync()121        {122            await Task.Delay(1);123            return this.HopperLevel;124        }125        public async Task<double> GetWaterTemperatureAsync()126        {127            await Task.Delay(1);128            return this.WaterTemperature;129        }130        public async Task<double> GetPortaFilterCoffeeLevelAsync()131        {132            await Task.Delay(1);133            return this.PortaFilterCoffeeLevel;134        }135        public async Task<bool> GetReadDoorOpenAsync()136        {137            await Task.Delay(1);138            return this.DoorOpen;139        }140        public async Task SetPowerSwitchAsync(bool value)141        {142            await Task.Delay(1);143            // NOTE: you should not use C# locks that interact with Tasks (like Task.Run) because144            // it can result in deadlocks, instead use the Coyote AsyncLock as follows.145            using (await this.Lock.AcquireAsync())146            {147                this.PowerOn = value;148                if (!this.PowerOn)149                {150                    // Master power override then also turns everything else off for safety!151                    this.WaterHeaterButton = false;152                    this.GrinderButton = false;153                    this.ShotButton = false;154                    StopTimer(this.CoffeeLevelTimer);155                    this.CoffeeLevelTimer = null;156                    StopTimer(this.ShotTimer);157                    this.ShotTimer = null;158                }159            }160        }161        public async Task SetWaterHeaterButtonAsync(bool value)162        {163            await Task.Delay(1);164            using (await this.Lock.AcquireAsync())165            {166                this.WaterHeaterButton = value;167                // Should never turn on the heater when there is no water to heat.168                if (this.WaterHeaterButton && this.WaterLevel <= 0)169                {170                    Specification.Assert(false, "Please do not turn on heater if there is no water");171                }172            }173        }174        public async Task SetGrinderButtonAsync(bool value)175        {176            await Task.Delay(1);177            await this.OnGrinderButtonChanged(value);178        }179        private async Task OnGrinderButtonChanged(bool value)180        {181            using (await this.Lock.AcquireAsync())182            {183                this.GrinderButton = value;184                if (this.GrinderButton)185                {186                    // Should never turn on the grinder when there is no coffee to grind.187                    if (this.HopperLevel <= 0)188                    {189                        Specification.Assert(false, "Please do not turn on grinder if there are no beans in the hopper");190                    }191                }192                if (value && this.CoffeeLevelTimer == null)193                {194                    // Start monitoring the coffee level.195                    this.CoffeeLevelTimer = new ControlledTimer("CoffeeLevelTimer", TimeSpan.FromSeconds(0.1), this.MonitorGrinder);196                }197                else if (!value && this.CoffeeLevelTimer != null)198                {199                    StopTimer(this.CoffeeLevelTimer);200                    this.CoffeeLevelTimer = null;201                }202            }203        }204        public async Task SetShotButtonAsync(bool value)205        {206            await Task.Delay(1);207            using (await this.Lock.AcquireAsync())208            {209                this.ShotButton = value;210                if (this.ShotButton)211                {212                    // Should never turn on the make shots button when there is no water.213                    if (this.WaterLevel <= 0)214                    {215                        Specification.Assert(false, "Please do not turn on shot maker if there is no water");216                    }217                }218                if (value && this.ShotTimer == null)219                {220                    // Start monitoring the coffee level.221                    this.ShotTimer = new ControlledTimer("ShotTimer", TimeSpan.FromSeconds(1), this.MonitorShot);222                }223                else if (!value && this.ShotTimer != null)224                {225                    StopTimer(this.ShotTimer);226                    this.ShotTimer = null;227                }228            }229        }230        public async Task SetDumpGrindsButtonAsync(bool value)231        {232            await Task.Delay(1);233            if (value)234            {235                // This is a toggle button, in no time grinds are dumped (just for simplicity).236                this.PortaFilterCoffeeLevel = 0;237            }238        }239        private void MonitorWaterTemperature()240        {241            double temp = this.WaterTemperature;242            if (this.WaterHeaterButton)243            {244                // Note: when running in production mode we run forever, and it is fun to245                // watch the water heat up and cool down. But in test mode this creates too246                // many async events to explore which makes the test slow. So in test mode247                // we short circuit this process and jump straight to the boundary conditions.248                if (!this.RunSlowly && temp < 99)249                {250                    temp = 99;251                }252                // Every time interval the temperature increases by 10 degrees up to 100 degrees.253                if (temp < 100)254                {255                    temp = (int)temp + 10;256                    this.WaterTemperature = temp;257                    this.WaterTemperatureChanged?.Invoke(this, this.WaterTemperature);258                }259                else260                {261                    this.WaterHot?.Invoke(this, true);262                }263            }264            else265            {266                // Then it is cooling down to room temperature, more slowly.267                if (temp > 70)268                {269                    temp -= 0.1;270                    this.WaterTemperature = temp;271                }272            }273            // Start another callback.274            this.WaterHeaterTimer = new ControlledTimer("WaterHeaterTimer", TimeSpan.FromSeconds(0.1), this.MonitorWaterTemperature);275        }276        private void MonitorGrinder()277        {278            // Every time interval the porta filter fills 10%. When it's full the grinder turns off279            // automatically, unless the hopper is empty in which case grinding does nothing!280            Task.Run(async () =>281            {282                bool changed = false;283                bool notifyEmpty = false;284                bool turnOffGrinder = false;285                using (await this.Lock.AcquireAsync())286                {287                    double hopperLevel = this.HopperLevel;288                    if (hopperLevel > 0)289                    {290                        double level = this.PortaFilterCoffeeLevel;291                        // Note: when running in production mode we run in real time, and it is fun292                        // to watch the porta filter filling up. But in test mode this creates too293                        // many async events to explore which makes the test slow. So in test mode294                        // we short circuit this process and jump straight to the boundary conditions.295                        if (!this.RunSlowly && level < 99)296                        {297                            hopperLevel -= 98 - (int)level;298                            this.Log.WriteLine("### HopperLevel: RunSlowly = {0}, level = {1}", this.RunSlowly, hopperLevel);299                            level = 99;300                        }301                        if (level < 100)302                        {303                            level += 10;304                            this.PortaFilterCoffeeLevel = level;305                            changed = true;306                            if (level >= 100)307                            {308                                turnOffGrinder = true;309                            }310                        }311                        // And the hopper level drops by 0.1 percent.312                        hopperLevel -= 1;313                        this.HopperLevel = hopperLevel;314                    }315                    if (this.HopperLevel <= 0)316                    {317                        hopperLevel = 0;318                        notifyEmpty = true;319                        StopTimer(this.CoffeeLevelTimer);320                        this.CoffeeLevelTimer = null;321                    }322                }323                if (turnOffGrinder)324                {325                    // Turning off the grinder is automatic.326                    await this.OnGrinderButtonChanged(false);327                }328                // Event callbacks should not be inside the lock otherwise we could get deadlocks.329                if (notifyEmpty && this.HopperEmpty != null)330                {331                    this.HopperEmpty(this, true);332                }333                if (changed && this.PortaFilterCoffeeLevelChanged != null)334                {335                    this.PortaFilterCoffeeLevelChanged(this, this.PortaFilterCoffeeLevel);336                }337                if (this.HopperLevel <= 0 && this.HopperEmpty != null)338                {339                    this.HopperEmpty(this, true);340                }341                // Start another callback.342                this.CoffeeLevelTimer = new ControlledTimer("WaterHeaterTimer", TimeSpan.FromSeconds(0.1), this.MonitorGrinder);343            });344        }345        private void MonitorShot()346        {347            Task.Run(async () =>348            {349                // One second of running water completes the shot.350                using (await this.Lock.AcquireAsync())351                {352                    this.WaterLevel -= 1;353                    // Turn off the water.354                    this.ShotButton = false;355                    this.ShotTimer = null;356                }357                // Event callbacks should not be inside the lock otherwise we could get deadlocks.358                if (this.WaterLevel > 0)359                {360                    this.ShotComplete?.Invoke(this, true);361                }362                else363                {364                    this.WaterEmpty?.Invoke(this, true);365                }366            });367        }368        private static void StopTimer(ControlledTimer timer)369        {370            if (timer != null)371            {372                timer.Stop();373            }374        }375    }376}...

FailoverDriver.cs

Source:FailoverDriver.cs

...59                {60                    // Setup a timer to randomly kill the coffee machine. When the timer fires we61                    // will restart the coffee machine and this is testing that the machine can62                    // recover gracefully when that happens.63                    this.HaltTimer = new ControlledTimer("HaltTimer", TimeSpan.FromSeconds(this.RandomGenerator.NextInteger(7) + 1), new Action(this.OnStopTest));64                    // Request a coffee!65                    var shots = this.RandomGenerator.NextInteger(3) + 1;66                    error = await this.CoffeeMachine.MakeCoffeeAsync(shots);67                }68                if (string.Compare(error, "<halted>", StringComparison.OrdinalIgnoreCase) == 0)69                {70                    // Then OnStopTest did it's thing, so it is time to create new coffee machine.71                    this.Log.WriteWarning("CoffeeMachine is halted.");72                    halted = true;73                }74                else if (!string.IsNullOrEmpty(error))75                {76                    this.Log.WriteWarning("CoffeeMachine reported an error.");77                    // No point trying to make more coffee.78                    this.RunForever = false;79                    this.Iterations = 10;80                }81                else82                {83                    // In this case we let the same CoffeeMachine continue on then.84                    this.Log.WriteLine("CoffeeMachine completed the job.");85                }86                this.Iterations++;87            }88            // Shutdown the sensors because test is now complete.89            this.Log.WriteLine("Test is complete, press ENTER to continue...");90            await this.Sensors.TerminateAsync();91        }92        internal void OnStopTest()93        {94            if (!this.IsInitialized)95            {96                // Not ready!97                return;98            }99            if (this.HaltTimer != null)100            {101                this.HaltTimer.Stop();102                this.HaltTimer = null;103            }104            // Halt the CoffeeMachine. HaltEvent is async and we must ensure the CoffeeMachine105            // is really halted before we create a new one because MockSensors will get confused106            // if two CoffeeMachines are running at the same time. So we've implemented a terminate107            // handshake here. We send event to the CoffeeMachine to terminate, and it sends back108            // a HaltedEvent when it really has been halted.109            this.Log.WriteLine("forcing termination of CoffeeMachine.");110            Task.Run(this.CoffeeMachine.TerminateAsync);111        }112    }113}...

ControlledTimer.cs

Source:ControlledTimer.cs

...14        private readonly CancellationTokenSource Source = new CancellationTokenSource();15        private readonly TimeSpan StartDelay;16        private readonly TimeSpan? Interval;17        private readonly Action Handler;18        private bool Stopped;19        private readonly string Name;20        public ControlledTimer(string name, TimeSpan startDelay, TimeSpan interval, Action handler)21        {22            this.Name = name;23            this.StartDelay = startDelay;24            this.Interval = interval;25            this.Handler = handler;26            this.StartTimer(startDelay);27        }28        public ControlledTimer(string name, TimeSpan dueTime, Action handler)29        {30            this.Name = name;31            this.StartDelay = dueTime;32            this.Handler = handler;33            this.StartTimer(dueTime);34        }35        private void StartTimer(TimeSpan dueTime)36        {37            Task.Run(async () =>38            {39                await Task.Delay(dueTime, this.Source.Token);40                this.OnTick();41            });42        }43        private void OnTick()44        {45            if (!this.Stopped)46            {47                this.Handler();48                if (this.Interval.HasValue)49                {50                    this.StartTimer(this.Interval.Value);51                }52            }53        }54        public void Stop()55        {56            this.Stopped = true;57            this.Source.Cancel();58        }59        public override string ToString()60        {61            return this.Name;62        }63    }64}...

Stop

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Samples.CoffeeMachineTasks;5{6    {7        public static void Main(string[] args)8        {9            ControlledTimer timer = new ControlledTimer(1000, new TimerCallback(OnTimer), null);10            timer.Stop();11            Console.WriteLine("Press Enter to exit the application.");12            Console.ReadLine();13        }14        private static void OnTimer(object state)15        {16            Console.WriteLine("Timer fired.");17        }18    }19}20using System;21using System.Threading.Tasks;22using Microsoft.Coyote;23using Microsoft.Coyote.Samples.CoffeeMachineTasks;24{25    {26        public static void Main(string[] args)27        {28            ControlledTimer timer = new ControlledTimer(1000, new TimerCallback(OnTimer), null);29            timer.Stop();30            Console.WriteLine("Press Enter to exit the application.");31            Console.ReadLine();32            timer.Dispose();33        }34        private static void OnTimer(object state)35        {36            Console.WriteLine("Timer fired.");37        }38    }39}

Stop

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Samples.CoffeeMachineTasks;5using Microsoft.Coyote.Tasks;6{7    {8        static async Task Main(string[] args)9        {10            await Runtime.RunAsync(async () =>11            {12                var timer = new ControlledTimer();13                var t = Task.Run(async () =>14                {15                    await timer.Start(TimeSpan.FromSeconds(2));16                    Console.WriteLine("Timer expired");17                });18                await Task.Delay(1000);19                timer.Stop();20                await t;21            });22        }23    }24}25using System;26using System.Threading.Tasks;27using Microsoft.Coyote;28using Microsoft.Coyote.Samples.CoffeeMachineTasks;29using Microsoft.Coyote.Tasks;30{31    {32        static async Task Main(string[] args)33        {34            await Runtime.RunAsync(async () =>35            {36                var timer = new ControlledTimer();37                var t = Task.Run(async () =>38                {39                    await timer.Start(TimeSpan.FromSeconds(2));40                    Console.WriteLine("Timer expired");41                });42                await Task.Delay(1000);43                timer.Stop();44                await t;45            });46        }47    }48}49using System;50using System.Threading.Tasks;51using Microsoft.Coyote;52using Microsoft.Coyote.Samples.CoffeeMachineTasks;53using Microsoft.Coyote.Tasks;54{55    {56        static async Task Main(string[] args)57        {58            await Runtime.RunAsync(async () =>59            {60                var timer = new ControlledTimer();61                var t = Task.Run(async () =>62                {63                    await timer.Start(TimeSpan.FromSeconds(2));64                    Console.WriteLine("Timer expired");65                });66                await Task.Delay(1000);67                timer.Stop();68                await t;69            });70        }71    }72}73using System;74using System.Threading.Tasks;75using Microsoft.Coyote;76using Microsoft.Coyote.Samples.CoffeeMachineTasks;

Stop

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Tasks;5using Microsoft.Coyote.Samples.CoffeeMachineTasks;6{7    {8        private Task _timerTask;9        private TaskCompletionSource<bool> _tcs;10        private int _timeout;11        public ControlledTimer()12        {13            _tcs = new TaskCompletionSource<bool>();14            _timerTask = _tcs.Task;15        }16        public Task Start(int timeout)17        {18            _timeout = timeout;19            _timerTask = Task.Delay(timeout);20            return _timerTask;21        }22        public void Stop()23        {24            _tcs.TrySetResult(true);25            _tcs = new TaskCompletionSource<bool>();26        }27        {28            {29                return _timeout;30            }31        }32        {33            {34                return _timerTask;35            }36        }37    }38}39using System;40using System.Threading.Tasks;41using Microsoft.Coyote;42using Microsoft.Coyote.Tasks;43using Microsoft.Coyote.Samples.CoffeeMachineTasks;44{45    {46        private ControlledTimer _timer;47        private TaskCompletionSource<bool> _tcs;48        public CoffeeMachine()49        {50            _timer = new ControlledTimer();51            _tcs = new TaskCompletionSource<bool>();52        }53        public async Task MakeCoffee()54        {55            await _timer.Start(1000);56            await _tcs.Task;57        }58        public void Stop()59        {60            _timer.Stop();61            _tcs.TrySetResult(true);62            _tcs = new TaskCompletionSource<bool>();63        }64    }65}66using System;67using System.Threading.Tasks;68using Microsoft.Coyote;69using Microsoft.Coyote.Tasks;70using Microsoft.Coyote.Samples.CoffeeMachineTasks;71{72    {73        private static async Task Main(string[] args)74        {75            var coffeeMachine = new CoffeeMachine();76            var task = coffeeMachine.MakeCoffee();77            coffeeMachine.Stop();

Stop

Using AI Code Generation

1using Microsoft.Coyote.Samples.CoffeeMachineTasks;2using System.Threading.Tasks;3{4    {5        public static async Task Main(string[] args)6        {7            var timer = new ControlledTimer();8            var task = timer.Start(1000);9            await Task.Delay(500);10            timer.Stop();11            await task;12        }13    }14}15using Microsoft.Coyote.Samples.CoffeeMachineTasks;16using System.Threading.Tasks;17{18    {19        public static async Task Main(string[] args)20        {21            var timer = new ControlledTimer();22            var task = timer.Start(1000);23            await Task.Delay(500);24            timer.Start(500);25            await task;26        }27    }28}29using Microsoft.Coyote.Samples.CoffeeMachineTasks;30using System.Threading.Tasks;31{32    {33        public static async Task Main(string[] args)34        {35            var timer = new ControlledTimer();36            var task = timer.Start(1000);37            await Task.Delay(500);38            timer.Start(1000);39            await task;40        }41    }42}43using Microsoft.Coyote.Samples.CoffeeMachineTasks;44using System.Threading.Tasks;45{46    {47        public static async Task Main(string[] args)48        {49            var timer = new ControlledTimer();50            var task = timer.Start(1000);51            await Task.Delay(500);52            timer.Start(500);53            await Task.Delay(500);54            timer.Start(1000);55            await task;56        }57    }58}59using Microsoft.Coyote.Samples.CoffeeMachineTasks;60using System.Threading.Tasks;61{62    {63        public static async Task Main(string[] args)

Stop

Using AI Code Generation

1using Microsoft.Coyote.Samples.CoffeeMachineTasks;2using System;3using System.Threading;4using System.Threading.Tasks;5{6    {7        public static void Main(string[] args)8        {9            var timer = new ControlledTimer();10            timer.Start(TimeSpan.FromSeconds(2));11            timer.Stop();12            Console.WriteLine("Timer stopped");13        }14    }15}16using Microsoft.Coyote.Samples.CoffeeMachineTasks;17using System;18using System.Threading;19using System.Threading.Tasks;20{21    {22        public static void Main(string[] args)23        {24            var timer = new ControlledTimer();25            timer.Start(TimeSpan.FromSeconds(2));26            Thread.Sleep(2000);27            timer.Stop();28            Console.WriteLine("Timer stopped");29        }30    }31}32using Microsoft.Coyote.Samples.CoffeeMachineTasks;33using System;34using System.Threading;35using System.Threading.Tasks;36{37    {38        public static void Main(string[] args)39        {40            var timer = new ControlledTimer();41            timer.Start(TimeSpan.FromSeconds(2));42            Thread.Sleep(5000);43            timer.Stop();44            Console.WriteLine("Timer stopped");45        }46    }47}48using Microsoft.Coyote.Samples.CoffeeMachineTasks;49using System;50using System.Threading;51using System.Threading.Tasks;52{53    {54        public static void Main(string[] args)55        {56            var timer = new ControlledTimer();57            timer.Start(TimeSpan.FromSeconds(2));58            Thread.Sleep(1000);59            timer.Stop();60            Console.WriteLine("Timer stopped");61        }62    }63}64using Microsoft.Coyote.Samples.CoffeeMachineTasks;65using System;66using System.Threading;67using System.Threading.Tasks;68{

Stop

Using AI Code Generation

1using Microsoft.Coyote.Samples.CoffeeMachineTasks;2using System.Threading.Tasks;3using System;4{5    {6        static void Main(string[] args)7        {8            var timer = new ControlledTimer();9            var task = Task.Run(() => timer.Start(1000));10            Task.Delay(100).Wait();11            timer.Stop();12            task.Wait();13        }14    }15}16using Microsoft.Coyote.Samples.CoffeeMachineTasks;17using System.Threading.Tasks;18using System;19{20    {21        static void Main(string[] args)22        {23            var timer = new ControlledTimer();24            var task = Task.Run(() => timer.Start(1000));25            Task.Delay(100).Wait();26            timer.Start(1000);27            task.Wait();28        }29    }30}31   at Microsoft.Coyote.Samples.CoffeeMachineTasks.ControlledTimer.Start(Int32 duration)32   at Microsoft.Coyote.Samples.CoffeeMachineTasks.Program.Main(String[] args)33using System;34using System.Threading;35using System.Threading.Tasks;36{37    {38        private CancellationTokenSource cts;39        public void Start(int duration)40        {41            if (this.cts != null)42            {43                throw new InvalidOperationException("Timer already started.");44            }45            this.cts = new CancellationTokenSource();46            Task.Delay(duration, this.cts.Token).ContinueWith(tsk =>47            {48                this.cts = null;49                Console.WriteLine("Timer elapsed.");50            });51        }52        public void Stop()53        {54            if (this.cts != null)55            {56                this.cts.Cancel();57                this.cts = null;58            }59        }60    }61}

Stop

Using AI Code Generation

1        public void StartTimer()2        {3            ControlledTimer timer = new ControlledTimer();4            timer.Start(1000, () =>5            {6                Console.WriteLine("Timer expired");7            });8            timer.Stop();9        }10    }11}

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