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How to use TerminateAsync method of Microsoft.Coyote.Samples.CoffeeMachineTasks.CoffeeMachine class

Best Coyote code snippet using Microsoft.Coyote.Samples.CoffeeMachineTasks.CoffeeMachine.TerminateAsync

CoffeeMachine.cs

Source:CoffeeMachine.cs

...26        /// <summary>27        /// Reboot the coffee machine!28        /// </summary>29        /// <returns>An async task.</returns>30        Task TerminateAsync();31    }32    /// <summary>33    /// Implementation of the ICoffeeMachine interface.34    /// </summary>35    internal class CoffeeMachine : ICoffeeMachine36    {37        private readonly object SyncObject = new object();38        private bool Initialized;39        private ISensors Sensors;40        private bool Heating;41        private double? WaterLevel;42        private double? HopperLevel;43        private bool? DoorOpen;44        private double? PortaFilterCoffeeLevel;45        private double? WaterTemperature;46        private int ShotsRequested;47        private double PreviousShotCount;48        private bool RefillRequired;49        private string Error;50        private bool Halted;51        private TaskCompletionSource<bool> ShotCompleteSource;52        private readonly LogWriter Log = LogWriter.Instance;53        public async Task<bool> InitializeAsync(ISensors sensors)54        {55            this.Log.WriteLine("initializing...");56            lock (this.SyncObject)57            {58                this.Sensors = sensors;59                this.RegisterSensorEvents(false);60                this.RegisterSensorEvents(true);61            }62            await this.CheckSensors();63            this.Initialized = !this.RefillRequired && string.IsNullOrEmpty(this.Error);64            return this.Initialized;65        }66        public async Task<string> MakeCoffeeAsync(int shots)67        {68            if (!this.Initialized)69            {70                throw new Exception("Please make sure InitializeAsync returns true.");71            }72            if (this.Halted)73            {74                return "Ignoring MakeCoffeeAsync on halted Coffee machine";75            }76            Specification.Monitor<LivenessMonitor>(new LivenessMonitor.BusyEvent());77            if (!this.RefillRequired && !this.Halted)78            {79                // Make sure water is hot enough.80                await this.StartHeatingWater();81            }82            this.Log.WriteLine($"Coffee requested, shots={shots}");83            this.ShotsRequested = shots;84            // Grind beans until porta filter is full. Turn on shot button for desired time dump the85            // grinds, while checking for error conditions, e.g. out of water or coffee beans.86            if (!this.RefillRequired && !this.Halted)87            {88                await this.GrindBeans();89            }90            if (!this.RefillRequired && !this.Halted)91            {92                await this.MakeShotsAsync();93            }94            await this.CleanupAsync();95            if (this.Halted)96            {97                return "<halted>";98            }99            return this.Error;100        }101        public async Task CheckSensors()102        {103            this.Log.WriteLine("checking initial state of sensors...");104            // When this state machine starts it has to figure out the state of the sensors.105            if (!await this.Sensors.GetPowerSwitchAsync())106            {107                // Coffee machine was off, so this is the easy case, simply turn it on!108                await this.Sensors.SetPowerSwitchAsync(true);109            }110            // Make sure grinder, shot maker and water heater are off.111            await this.Sensors.SetGrinderButtonAsync(false);112            await this.Sensors.SetShotButtonAsync(false);113            await this.Sensors.SetWaterHeaterButtonAsync(false);114            // Need to check water and hopper levels and if the porta filter115            // has coffee in it we need to dump those grinds.116            await this.CheckWaterLevelAsync();117            await this.CheckHopperLevelAsync();118            await this.CheckPortaFilterCoffeeLevelAsync();119            await this.CheckDoorOpenAsync();120        }121        private async Task CheckWaterLevelAsync()122        {123            this.WaterLevel = await this.Sensors.GetWaterLevelAsync();124            this.Log.WriteLine("Water level is {0} %", (int)this.WaterLevel.Value);125            if ((int)this.WaterLevel.Value <= 0)126            {127                this.OnRefillRequired("is out of water");128            }129        }130        private async Task CheckHopperLevelAsync()131        {132            this.HopperLevel = await this.Sensors.GetHopperLevelAsync();133            this.Log.WriteLine("Hopper level is {0} %", (int)this.HopperLevel.Value);134            if ((int)this.HopperLevel.Value == 0)135            {136                this.OnRefillRequired("out of coffee beans");137            }138        }139        private async Task CheckPortaFilterCoffeeLevelAsync()140        {141            this.PortaFilterCoffeeLevel = await this.Sensors.GetPortaFilterCoffeeLevelAsync();142            if (this.PortaFilterCoffeeLevel > 0)143            {144                // Dump these grinds because they could be old, we have no idea how long145                // the coffee machine was off (no real time clock sensor).146                this.Log.WriteLine("Dumping old smelly grinds!");147                await this.Sensors.SetDumpGrindsButtonAsync(true);148            }149        }150        private async Task CheckDoorOpenAsync()151        {152            this.DoorOpen = await this.Sensors.GetReadDoorOpenAsync();153            if (this.DoorOpen.Value != false)154            {155                this.Log.WriteLine("Cannot safely operate coffee machine with the door open!");156                this.OnError();157            }158        }159        private async Task StartHeatingWater()160        {161            if (!this.Halted)162            {163                // Start heater and keep monitoring the water temp till it reaches 100!164                this.Log.WriteLine("Warming the water to 100 degrees");165                Specification.Monitor<LivenessMonitor>(new LivenessMonitor.BusyEvent());166                await this.MonitorWaterTemperature();167            }168            else169            {170                this.Log.WriteLine("Ignoring StartHeatingWater on a Halted Coffee machine");171            }172        }173        private async Task OnWaterHot()174        {175            this.Log.WriteLine("Coffee machine water temperature is now 100");176            if (this.Heating)177            {178                this.Heating = false;179                // Turn off the heater so we don't overheat it!180                await this.Sensors.SetWaterHeaterButtonAsync(false);181                this.Log.WriteLine("Turning off the water heater");182            }183            this.OnReady();184        }185        private async Task MonitorWaterTemperature()186        {187            while (!this.IsBroken)188            {189                this.WaterTemperature = await this.Sensors.GetWaterTemperatureAsync();190                if (this.WaterTemperature.Value >= 100)191                {192                    await this.OnWaterHot();193                    break;194                }195                else196                {197                    if (!this.Heating)198                    {199                        this.Heating = true;200                        // Turn on the heater and wait for WaterHotEvent.201                        this.Log.WriteLine("Turning on the water heater");202                        await this.Sensors.SetWaterHeaterButtonAsync(true);203                    }204                }205                this.Log.WriteLine("Coffee machine is warming up ({0} degrees)...", this.WaterTemperature);206                await Task.Delay(TimeSpan.FromSeconds(0.1));207            }208        }209        private void OnReady()210        {211            Specification.Monitor<LivenessMonitor>(new LivenessMonitor.IdleEvent());212            this.Log.WriteLine("Coffee machine is ready to make coffee (green light is on)");213        }214        private async Task GrindBeans()215        {216            // Grind beans until porta filter is full.217            this.Log.WriteLine("Grinding beans...");218            // Turn on the grinder!219            await this.Sensors.SetGrinderButtonAsync(true);220            // We now receive a stream of PortaFilterCoffeeLevelChanged events so we keep monitoring221            // the porta filter till it is full, and the bean level in case we get empty.222            await this.MonitorPortaFilter();223        }224        private async Task MonitorPortaFilter()225        {226            while (this.PortaFilterCoffeeLevel < 100 && !this.RefillRequired && !this.IsBroken)227            {228                await Task.Delay(TimeSpan.FromSeconds(0.1));229            }230        }231        private async Task OnHopperEmpty()232        {233            await this.Sensors.SetGrinderButtonAsync(false);234            this.OnRefillRequired("out of coffee beans");235        }236        private Task MakeShotsAsync()237        {238            // Pour the shots.239            this.Log.WriteLine("Making shots...");240            // First we assume user placed a new cup in the machine, and so the shot count is zero.241            this.PreviousShotCount = 0;242            // Wait for shots to be completed.243            return this.MonitorShotsAsync();244        }245        private async Task MonitorShotsAsync()246        {247            try248            {249                while (!this.IsBroken)250                {251                    this.Log.WriteLine("Shot count is {0}", this.PreviousShotCount);252                    // So we can wait for async event to come back from the sensors.253                    var completion = new TaskCompletionSource<bool>();254                    this.ShotCompleteSource = completion;255                    // Request another shot!256                    await this.Sensors.SetShotButtonAsync(true);257                    if (!this.IsBroken)258                    {259                        await completion.Task;260                        if (!this.IsBroken)261                        {262                            this.PreviousShotCount++;263                            if (this.PreviousShotCount >= this.ShotsRequested && !this.IsBroken)264                            {265                                this.Log.WriteLine("{0} shots completed and {1} shots requested!", this.PreviousShotCount, this.ShotsRequested);266                                if (this.PreviousShotCount > this.ShotsRequested)267                                {268                                    Specification.Assert(false, "Made the wrong number of shots");269                                }270                                break;271                            }272                        }273                    }274                }275            }276            catch (OperationCanceledException)277            {278                // Cancelled.279            }280        }281        private Task CleanupAsync()282        {283            // Dump the grinds.284            this.Log.WriteLine("Dumping the grinds!");285            return this.Sensors.SetDumpGrindsButtonAsync(true);286        }287        private void OnRefillRequired(string message)288        {289            this.Error = message;290            this.RefillRequired = true;291            Specification.Monitor<LivenessMonitor>(new LivenessMonitor.IdleEvent());292            this.Log.WriteError(message);293        }294        private void OnError()295        {296            this.Error = "Coffee machine needs fixing!";297            Specification.Monitor<LivenessMonitor>(new LivenessMonitor.IdleEvent());298            this.Log.WriteError(this.Error);299        }300        public async Task TerminateAsync()301        {302            this.Halted = true;303            this.Log.WriteLine("Coffee Machine Terminating...");304            var sensors = this.Sensors;305            if (sensors != null)306            {307                await sensors.SetPowerSwitchAsync(false);308            }309            var src = this.ShotCompleteSource;310            if (src != null)311            {312                src.TrySetCanceled();313            }314            // Stop listening to the sensors....

FailoverDriver.cs

Source:FailoverDriver.cs

...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}...

TerminateAsync

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        public async Task StartAsync()9        {10            await Task.Yield();11            while (true)12            {13                await Task.Yield();14                await Task.Delay(1000);15                Console.WriteLine("CoffeeMachine: Started");16                await Task.Delay(1000);17                Console.WriteLine("CoffeeMachine: Finished");18            }19        }20        public async Task TerminateAsync()21        {22            await Task.Yield();23            Console.WriteLine("CoffeeMachine: Terminating...");24        }25    }26}27using System;28using System.Threading.Tasks;29using Microsoft.Coyote;30using Microsoft.Coyote.Samples.CoffeeMachineTasks;31using Microsoft.Coyote.Tasks;32{33    {34        public async Task StartAsync()35        {36            await Task.Yield();37            while (true)38            {39                await Task.Yield();40                await Task.Delay(1000);41                Console.WriteLine("CoffeeMachine: Started");42                await Task.Delay(1000);43                Console.WriteLine("CoffeeMachine: Finished");44            }45        }46        public async Task TerminateAsync()47        {48            await Task.Yield();49            Console.WriteLine("CoffeeMachine: Terminating...");50        }51    }52}53using System;54using System.Threading.Tasks;55using Microsoft.Coyote;56using Microsoft.Coyote.Samples.CoffeeMachineTasks;57using Microsoft.Coyote.Tasks;58{59    {60        public async Task StartAsync()61        {62            await Task.Yield();63            while (true)64            {65                await Task.Yield();66                await Task.Delay(1000);67                Console.WriteLine("CoffeeMachine: Started");68                await Task.Delay(1000);69                Console.WriteLine("CoffeeMachine: Finished");70            }71        }72        public async Task TerminateAsync()73        {

TerminateAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Samples.CoffeeMachineTasks;4{5    {6        static async Task Main(string[] args)7        {8            var coffeeMachine = new CoffeeMachine();9            await coffeeMachine.StartAsync();10            await coffeeMachine.TerminateAsync();11        }12    }13}14using System;15using System.Threading.Tasks;16using Microsoft.Coyote.Samples.CoffeeMachineTasks;17{18    {19        static async Task Main(string[] args)20        {21            var coffeeMachine = new CoffeeMachine();22            await coffeeMachine.StartAsync();23            coffeeMachine.Terminate();24        }25    }26}27using System;28using System.Threading.Tasks;29using Microsoft.Coyote.Samples.CoffeeMachineTasks;30{31    {32        static async Task Main(string[] args)33        {34            var coffeeMachine = new CoffeeMachine();35            await coffeeMachine.StartAsync();36            await Task.Delay(10000);37            coffeeMachine.Terminate();38        }39    }40}41using System;42using System.Threading.Tasks;43using Microsoft.Coyote.Samples.CoffeeMachineTasks;44{45    {46        static async Task Main(string[] args)47        {48            var coffeeMachine = new CoffeeMachine();49            await Task.Delay(10000);50            await coffeeMachine.StartAsync();51            await Task.Delay(10000);52            coffeeMachine.Terminate();53        }54    }55}

TerminateAsync

Using AI Code Generation

1using System.Threading.Tasks;2using Microsoft.Coyote.Samples.CoffeeMachineTasks;3using Microsoft.Coyote.Tasks;4{5    public static async Task Main()6    {7        CoffeeMachine coffeeMachine = new CoffeeMachine();8        await Task.Run(() => coffeeMachine.TerminateAsync());9    }10}

TerminateAsync

Using AI Code Generation

1var coffeeMachine = new CoffeeMachine();2await coffeeMachine.TerminateAsync();3var coffeeMachine = new CoffeeMachine();4await coffeeMachine.TerminateAsync();5var coffeeMachine = new CoffeeMachine();6await coffeeMachine.TerminateAsync();7var coffeeMachine = new CoffeeMachine();8await coffeeMachine.TerminateAsync();9var coffeeMachine = new CoffeeMachine();10await coffeeMachine.TerminateAsync();11var coffeeMachine = new CoffeeMachine();12await coffeeMachine.TerminateAsync();13var coffeeMachine = new CoffeeMachine();14await coffeeMachine.TerminateAsync();15var coffeeMachine = new CoffeeMachine();16await coffeeMachine.TerminateAsync();17var coffeeMachine = new CoffeeMachine();18await coffeeMachine.TerminateAsync();19var coffeeMachine = new CoffeeMachine();20await coffeeMachine.TerminateAsync();

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