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How to use AcquireAsync method of Microsoft.Coyote.Samples.CoffeeMachineTasks.AsyncLock class

Best Coyote code snippet using Microsoft.Coyote.Samples.CoffeeMachineTasks.AsyncLock.AcquireAsync

MockSensors.cs

Source:MockSensors.cs

...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);...

AsyncLock.cs

Source:AsyncLock.cs

...34        /// Tries to acquire the lock asynchronously, and returns a task that completes35        /// when the lock has been acquired. The returned task contains a releaser that36        /// releases the lock when disposed. This is not a reentrant operation.37        /// </summary>38        public virtual async Task<Releaser> AcquireAsync()39        {40            TaskCompletionSource<object> awaiter;41            lock (this.Awaiters)42            {43                if (this.IsAcquired)44                {45                    awaiter = new TaskCompletionSource<object>();46                    this.Awaiters.Enqueue(awaiter);47                }48                else49                {50                    this.IsAcquired = true;51                    awaiter = null;52                }...

AcquireAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.Samples.CoffeeMachineTasks;5{6    {7        private static async Task Main(string[] args)8        {9            var runtime = RuntimeFactory.Create();10            var coffeeMachine = runtime.CreateActor(typeof(CoffeeMachine));11            var customer = runtime.CreateActor(typeof(Customer));12            var customer2 = runtime.CreateActor(typeof(Customer));13            await runtime.SendEventAsync(customer, new StartCoffeeMachine(coffeeMachine));14            await runtime.SendEventAsync(customer2, new StartCoffeeMachine(coffeeMachine));15        }16    }17    {18        public ActorId CoffeeMachine;19        public StartCoffeeMachine(ActorId coffeeMachine)20        {21            this.CoffeeMachine = coffeeMachine;22        }23    }24    {25        private ActorId CoffeeMachine;26        protected override Task OnInitializeAsync(Event initialEvent)27        {28            this.CoffeeMachine = (initialEvent as StartCoffeeMachine).CoffeeMachine;29            return Task.CompletedTask;30        }31        protected override async Task OnEventAsync(Event e)32        {33            if (e is CoffeeMachineStart)34            {35                await this.CoffeeMachine.AcquireAsync();36                await this.SendEventAsync(this.CoffeeMachine, new MakeCoffee());37            }38            else if (e is CoffeeReady)39            {40                Console.WriteLine("Coffee is ready");41                this.CoffeeMachine.Release();42            }43        }44    }45    {46        private readonly AsyncLock lockObj = new AsyncLock();47        protected override async Task OnEventAsync(Event e)48        {49            if (e is MakeCoffee)50            {51                await this.lockObj.AcquireAsync();52                await Task.Delay(1000);53                await this.SendEventAsync(this.Id, new CoffeeReady());54            }55        }56    }57    {58    }59    {60    }61    {62    }63}64using System;65using System.Threading.Tasks;66using Microsoft.Coyote.Actors;67using Microsoft.Coyote.Samples.CoffeeMachineTasks;

AcquireAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Samples.CoffeeMachineTasks;5{6    static async Task Main(string[] args)7    {8        var asyncLock = new AsyncLock();9        var task1 = Task.Run(async () =>10        {11            await asyncLock.AcquireAsync();12            Console.WriteLine("Task 1 acquired the lock");13            await Task.Delay(1000);14            Console.WriteLine("Task 1 releasing the lock");15            asyncLock.Release();16        });17        var task2 = Task.Run(async () =>18        {19            await asyncLock.AcquireAsync();20            Console.WriteLine("Task 2 acquired the lock");21            await Task.Delay(1000);22            Console.WriteLine("Task 2 releasing the lock");23            asyncLock.Release();24        });25        await Task.WhenAll(task1, task2);26    }27}28using System;29using System.Threading.Tasks;30using Microsoft.Coyote;31using Microsoft.Coyote.Samples.CoffeeMachineTasks;32{33    static async Task Main(string[] args)34    {35        var asyncLock = new AsyncLock();36        var task1 = Task.Run(async () =>37        {38            await asyncLock.AcquireAsync();39            Console.WriteLine("Task 1 acquired the lock");40            await Task.Delay(1000);41            Console.WriteLine("Task 1 releasing the lock");42            asyncLock.Release();43        });44        var task2 = Task.Run(async () =>45        {46            await asyncLock.AcquireAsync();47            Console.WriteLine("Task 2 acquired the lock");48            await Task.Delay(1000);49            Console.WriteLine("Task 2 releasing the lock");50            asyncLock.Release();51        });52        await Task.WhenAll(task1, task2);53    }54}55using System;56using System.Threading.Tasks;57using Microsoft.Coyote;58using Microsoft.Coyote.Samples.CoffeeMachineTasks;59{60    static async Task Main(string[] args)61    {62        var asyncLock = new AsyncLock();63        var task1 = Task.Run(async () =>64        {65            await asyncLock.AcquireAsync();66            Console.WriteLine("Task 1 acquired the lock");

AcquireAsync

Using AI Code Generation

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

AcquireAsync

Using AI Code Generation

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

AcquireAsync

Using AI Code Generation

1var _asyncLock = new AsyncLock();2using (await _asyncLock.AcquireAsync())3{4}5var _asyncLock = new AsyncLock();6using (await _asyncLock.AcquireAsync())7{8}9var _asyncLock = new AsyncLock();10using (await _asyncLock.AcquireAsync())11{12}13var _asyncLock = new AsyncLock();14using (await _asyncLock.AcquireAsync())15{16}17var _asyncLock = new AsyncLock();18using (await _asyncLock.AcquireAsync())19{20}21var _asyncLock = new AsyncLock();22using (await _asyncLock.AcquireAsync())23{24}25var _asyncLock = new AsyncLock();26using (await _asyncLock.AcquireAsync())27{28}29var _asyncLock = new AsyncLock();30using (await _asyncLock.AcquireAsync())31{32}

AcquireAsync

Using AI Code Generation

1public async Task UseAsync()2{3    using (await this.myLock.AcquireAsync())4    {5    }6}7public async Task Use()8{9    using (this.myLock.Acquire())10    {11    }12}13public async Task UseAsync()14{15    using (await this.myLock.AcquireAsync())16    {17    }18}19public async Task Use()20{21    using (this.myLock.Acquire())22    {23    }24}25public async Task UseAsync()26{27    using (await this.myLock.AcquireAsync())28    {29    }30}31public async Task Use()32{33    using (this.myLock.Acquire())34    {35    }36}37public async Task UseAsync()38{39    using (await this.myLock.AcquireAsync())40    {41    }42}43public async Task Use()44{45    using (this.myLock.Acquire())46    {47    }48}49public async Task UseAsync()50{51    using (

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