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How to use Close method of Microsoft.Coyote.Actors.EventQueue class

Best Coyote code snippet using Microsoft.Coyote.Actors.EventQueue.Close

EventQueue.cs

Source:EventQueue.cs

...37        private TaskCompletionSource<Event> ReceiveCompletionSource;38        /// <summary>39        /// Checks if the queue is accepting new events.40        /// </summary>41        private bool IsClosed;42        /// <summary>43        /// The size of the queue.44        /// </summary>45        public int Size => this.Queue.Count;46        /// <summary>47        /// Checks if an event has been raised.48        /// </summary>49        public bool IsEventRaised => this.RaisedEvent != default;50        /// <summary>51        /// Initializes a new instance of the <see cref="EventQueue"/> class.52        /// </summary>53        internal EventQueue(IActorStateManager actorStateManager)54        {55            this.ActorStateManager = actorStateManager;56            this.Queue = new LinkedList<(Event, Guid)>();57            this.EventWaitTypes = new Dictionary<Type, Func<Event, bool>>();58            this.IsClosed = false;59        }60        /// <summary>61        /// Enqueues the specified event and its optional metadata.62        /// </summary>63        public EnqueueStatus Enqueue(Event e, Guid opGroupId, EventInfo info)64        {65            EnqueueStatus enqueueStatus = EnqueueStatus.EventHandlerRunning;66            lock (this.Queue)67            {68                if (this.IsClosed)69                {70                    return EnqueueStatus.Dropped;71                }72                if (this.EventWaitTypes != null &&73                    this.EventWaitTypes.TryGetValue(e.GetType(), out Func<Event, bool> predicate) &&74                    (predicate is null || predicate(e)))75                {76                    this.EventWaitTypes = null;77                    enqueueStatus = EnqueueStatus.Received;78                }79                else80                {81                    this.Queue.AddLast((e, opGroupId));82                    if (!this.ActorStateManager.IsEventHandlerRunning)83                    {84                        this.ActorStateManager.IsEventHandlerRunning = true;85                        enqueueStatus = EnqueueStatus.EventHandlerNotRunning;86                    }87                }88            }89            if (enqueueStatus is EnqueueStatus.Received)90            {91                this.ActorStateManager.OnReceiveEvent(e, opGroupId, info);92                this.ReceiveCompletionSource.SetResult(e);93                return enqueueStatus;94            }95            else96            {97                this.ActorStateManager.OnEnqueueEvent(e, opGroupId, info);98            }99            return enqueueStatus;100        }101        /// <summary>102        /// Dequeues the next event, if there is one available.103        /// </summary>104        public (DequeueStatus status, Event e, Guid opGroupId, EventInfo info) Dequeue()105        {106            // Try to get the raised event, if there is one. Raised events107            // have priority over the events in the inbox.108            if (this.RaisedEvent != default)109            {110                if (this.ActorStateManager.IsEventIgnoredInCurrentState(this.RaisedEvent.e, this.RaisedEvent.opGroupId, null))111                {112                    // TODO: should the user be able to raise an ignored event?113                    // The raised event is ignored in the current state.114                    this.RaisedEvent = default;115                }116                else117                {118                    (Event e, Guid opGroupId) = this.RaisedEvent;119                    this.RaisedEvent = default;120                    return (DequeueStatus.Raised, e, opGroupId, null);121                }122            }123            lock (this.Queue)124            {125                // Try to dequeue the next event, if there is one.126                var node = this.Queue.First;127                while (node != null)128                {129                    // Iterates through the events in the inbox.130                    if (this.ActorStateManager.IsEventIgnoredInCurrentState(node.Value.e, node.Value.opGroupId, null))131                    {132                        // Removes an ignored event.133                        var nextNode = node.Next;134                        this.Queue.Remove(node);135                        node = nextNode;136                        continue;137                    }138                    else if (this.ActorStateManager.IsEventDeferredInCurrentState(node.Value.e, node.Value.opGroupId, null))139                    {140                        // Skips a deferred event.141                        node = node.Next;142                        continue;143                    }144                    // Found next event that can be dequeued.145                    this.Queue.Remove(node);146                    return (DequeueStatus.Success, node.Value.e, node.Value.opGroupId, null);147                }148                // No event can be dequeued, so check if there is a default event handler.149                if (!this.ActorStateManager.IsDefaultHandlerInstalledInCurrentState())150                {151                    // There is no default event handler installed, so do not return an event.152                    // Setting 'IsEventHandlerRunning' must happen inside the lock as it needs153                    // to be synchronized with the enqueue and starting a new event handler.154                    this.ActorStateManager.IsEventHandlerRunning = false;155                    return (DequeueStatus.NotAvailable, null, Guid.Empty, null);156                }157            }158            // TODO: check op-id of default event.159            // A default event handler exists.160            return (DequeueStatus.Default, Default.Event, Guid.Empty, null);161        }162        /// <summary>163        /// Enqueues the specified raised event.164        /// </summary>165        public void Raise(Event e, Guid opGroupId)166        {167            this.RaisedEvent = (e, opGroupId);168            this.ActorStateManager.OnRaiseEvent(e, opGroupId, null);169        }170        /// <summary>171        /// Waits to receive an event of the specified type that satisfies an optional predicate.172        /// </summary>173        public Task<Event> ReceiveAsync(Type eventType, Func<Event, bool> predicate = null)174        {175            var eventWaitTypes = new Dictionary<Type, Func<Event, bool>>176            {177                { eventType, predicate }178            };179            return this.ReceiveAsync(eventWaitTypes);180        }181        /// <summary>182        /// Waits to receive an event of the specified types.183        /// </summary>184        public Task<Event> ReceiveAsync(params Type[] eventTypes)185        {186            var eventWaitTypes = new Dictionary<Type, Func<Event, bool>>();187            foreach (var type in eventTypes)188            {189                eventWaitTypes.Add(type, null);190            }191            return this.ReceiveAsync(eventWaitTypes);192        }193        /// <summary>194        /// Waits to receive an event of the specified types that satisfy the specified predicates.195        /// </summary>196        public Task<Event> ReceiveAsync(params Tuple<Type, Func<Event, bool>>[] events)197        {198            var eventWaitTypes = new Dictionary<Type, Func<Event, bool>>();199            foreach (var e in events)200            {201                eventWaitTypes.Add(e.Item1, e.Item2);202            }203            return this.ReceiveAsync(eventWaitTypes);204        }205        /// <summary>206        /// Waits for an event to be enqueued based on the conditions defined in the event wait types.207        /// </summary>208        private Task<Event> ReceiveAsync(Dictionary<Type, Func<Event, bool>> eventWaitTypes)209        {210            (Event e, Guid opGroupId) receivedEvent = default;211            lock (this.Queue)212            {213                var node = this.Queue.First;214                while (node != null)215                {216                    // Dequeue the first event that the caller waits to receive, if there is one in the queue.217                    if (eventWaitTypes.TryGetValue(node.Value.e.GetType(), out Func<Event, bool> predicate) &&218                        (predicate is null || predicate(node.Value.e)))219                    {220                        receivedEvent = node.Value;221                        this.Queue.Remove(node);222                        break;223                    }224                    node = node.Next;225                }226                if (receivedEvent == default)227                {228                    this.ReceiveCompletionSource = new TaskCompletionSource<Event>();229                    this.EventWaitTypes = eventWaitTypes;230                }231            }232            if (receivedEvent == default)233            {234                // Note that 'EventWaitTypes' is racy, so should not be accessed outside235                // the lock, this is why we access 'eventWaitTypes' instead.236                this.ActorStateManager.OnWaitEvent(eventWaitTypes.Keys);237                return this.ReceiveCompletionSource.Task;238            }239            this.ActorStateManager.OnReceiveEventWithoutWaiting(receivedEvent.e, receivedEvent.opGroupId, null);240            return Task.FromResult(receivedEvent.e);241        }242        /// <summary>243        /// Returns the cached state of the queue.244        /// </summary>245        public int GetCachedState()246        {247            unchecked248            {249                int hash = 37;250                foreach (var (e, info) in this.Queue)251                {252                    hash = (hash * 397) + e.GetType().GetHashCode();253                    // if (info.HashedState != 0)254                    // {255                    //    // Adds the user-defined hashed event state.256                    //    hash = (hash * 397) + info.HashedState;257                    // }258                }259                return hash;260            }261        }262        /// <summary>263        /// Closes the queue, which stops any further event enqueues.264        /// </summary>265        public void Close()266        {267            lock (this.Queue)268            {269                this.IsClosed = true;270            }271        }272        /// <summary>273        /// Disposes the queue resources.274        /// </summary>275        private void Dispose(bool disposing)276        {277            if (!disposing)278            {279                return;280            }281            foreach (var (e, opGroupId) in this.Queue)282            {283                this.ActorStateManager.OnDropEvent(e, opGroupId, null);...

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Actors.Timers;6using Microsoft.Coyote.Specifications;7using Microsoft.Coyote.SystematicTesting;8using Microsoft.Coyote.Tasks;9{10    {11        public static void Main()12        {13            var configuration = Configuration.Create().WithTestingIterations(1000);14            var testEngine = TestingEngineFactory.Create(configuration, new SchedulingStrategy());15            testEngine.Run();16        }17    }18    {19        public async Task ExecuteAsync(IActorRuntime runtime, SystematicTestingOptions options)20        {21            var actor = runtime.CreateActor(typeof(Actor1));22            runtime.SendEvent(actor, new e1());23            runtime.SendEvent(actor, new e2());24            runtime.SendEvent(actor, new e3());25            runtime.SendEvent(actor, new e4());26            runtime.SendEvent(actor, new e5());27            runtime.SendEvent(actor, new e6());28            runtime.SendEvent(actor, new e7());29            runtime.SendEvent(actor, new e8());30            runtime.SendEvent(actor, new e9());31            runtime.SendEvent(actor, new e10());32            runtime.SendEvent(actor, new e11());33            runtime.SendEvent(actor, new e12());34            runtime.SendEvent(actor, new e13());35            runtime.SendEvent(actor, new e14());36            runtime.SendEvent(actor, new e15());37            runtime.SendEvent(actor, new e16());38            runtime.SendEvent(actor, new e17());39            runtime.SendEvent(actor, new e18());40            runtime.SendEvent(actor, new e19());41            runtime.SendEvent(actor, new e20());42            runtime.SendEvent(actor, new e21());43            runtime.SendEvent(actor, new e22());44            runtime.SendEvent(actor, new e23());45            runtime.SendEvent(actor, new e24());46            runtime.SendEvent(actor, new e25());47            runtime.SendEvent(actor, new e26());48            runtime.SendEvent(actor, new e27());49            runtime.SendEvent(actor, new e28());50            runtime.SendEvent(actor, new e29());51            runtime.SendEvent(actor, new e30());52            runtime.SendEvent(actor, new e31());53            runtime.SendEvent(actor, new e32());54            runtime.SendEvent(actor, new e33());55            runtime.SendEvent(actor, new e34

Using AI Code Generation

1using System;2using Microsoft.Coyote.Actors;3using Microsoft.Coyote.Specifications;4using Microsoft.Coyote.SystematicTesting;5using Microsoft.Coyote.SystematicTesting.Strategies;6using Microsoft.Coyote.Tasks;7using System.Threading.Tasks;8using System.Collections.Generic;9{10    {11        static async Task Main(string[] args)12        {13            var configuration = Configuration.Create().WithTestingIterations(10).WithStrategy(new RandomStrategy());14            await TestingEngine.TestAsync(configuration, async () =>15            {16                var actor = Actor.CreateFromTask(async () =>17                {18                    var queue = new EventQueue();19                    var ev1 = new Event();20                    var ev2 = new Event();21                    var ev3 = new Event();22                    var ev4 = new Event();23                    var ev5 = new Event();24                    var ev6 = new Event();25                    var ev7 = new Event();26                    var ev8 = new Event();27                    var ev9 = new Event();28                    var ev10 = new Event();29                    var ev11 = new Event();30                    var ev12 = new Event();31                    var ev13 = new Event();32                    var ev14 = new Event();33                    var ev15 = new Event();34                    var ev16 = new Event();35                    var ev17 = new Event();36                    var ev18 = new Event();37                    var ev19 = new Event();38                    var ev20 = new Event();39                    var ev21 = new Event();40                    var ev22 = new Event();41                    var ev23 = new Event();42                    var ev24 = new Event();43                    var ev25 = new Event();44                    var ev26 = new Event();45                    var ev27 = new Event();46                    var ev28 = new Event();47                    var ev29 = new Event();48                    var ev30 = new Event();49                    var ev31 = new Event();50                    var ev32 = new Event();51                    var ev33 = new Event();52                    var ev34 = new Event();53                    var ev35 = new Event();54                    var ev36 = new Event();55                    var ev37 = new Event();56                    var ev38 = new Event();57                    var ev39 = new Event();58                    var ev40 = new Event();59                    var ev41 = new Event();60                    var ev42 = new Event();61                    var ev43 = new Event();62                    var ev44 = new Event();63                    var ev45 = new Event();

Using AI Code Generation

1using System;2using Microsoft.Coyote.Actors;3{4    {5        public static void Main()6        {7            EventQueue eventQueue = new EventQueue();8            eventQueue.Close();9        }10    }11}12   at Microsoft.Coyote.Actors.EventQueue.AssertNotClosed()13   at Microsoft.Coyote.Actors.EventQueue.Close()14   at Test.Program.Main() in C:\Users\coyote\3.cs:line 1115using System;16using Microsoft.Coyote.Actors;17{18    {19        public static void Main()20        {21            EventQueue eventQueue = new EventQueue();22            eventQueue.Enqueue(new Halt());23        }24    }25}26   at Microsoft.Coyote.Actors.EventQueue.AssertNotClosed()27   at Microsoft.Coyote.Actors.EventQueue.Enqueue(Event e)28   at Test.Program.Main() in C:\Users\coyote\4.cs:line 1129using System;30using Microsoft.Coyote.Actors;31{32    {33        public static void Main()34        {35            EventQueue eventQueue = new EventQueue();36            eventQueue.TryDequeue(out Event e);37        }38    }39}40   at Microsoft.Coyote.Actors.EventQueue.AssertNotClosed()41   at Microsoft.Coyote.Actors.EventQueue.TryDequeue(Event& e)42   at Test.Program.Main() in C:\Users\coyote\5.cs:line 1143using System;44using Microsoft.Coyote.Actors;45{

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.SystematicTesting;6using Microsoft.Coyote.Tasks;7{8    {9        static void Main(string[] args)10        {11            var configuration = Configuration.Create();

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.IO;6using Microsoft.Coyote.Runtime;7{8    {9        static void Main(string[] args)10        {11            Task task = RunTask();12            task.Wait();13        }14        static async Task RunTask()15        {16            var runtime = RuntimeFactory.Create();17            var config = Configuration.Create();18            config.MaxSchedulingSteps = 100;19            runtime.Configure(config);20            var actor = runtime.CreateActor(typeof(MyActor));21            await runtime.SendEvent(actor, new MyEvent());22            runtime.Close();23        }24    }25    {26        public int Value;27    }28    {29        private EventQueue EventQueue;30        protected override async Task OnInitializeAsync(Event initialEvent)31        {32            this.EventQueue = new EventQueue();33            this.EventQueue.RegisterHandler<MyEvent>(this.ProcessEvent);34            this.EventQueue.RegisterDefaultHandler(this.DefaultHandler);35            await Task.CompletedTask;36        }37        private async Task DefaultHandler(Event e)38        {39            await Task.CompletedTask;40        }41        private async Task ProcessEvent(MyEvent e)42        {43            await Task.CompletedTask;44        }45    }46}47using System;48using System.Threading.Tasks;49using Microsoft.Coyote;50using Microsoft.Coyote.Actors;51using Microsoft.Coyote.IO;52using Microsoft.Coyote.Runtime;53{54    {55        static void Main(string[] args)56        {57            Task task = RunTask();58            task.Wait();59        }60        static async Task RunTask()61        {62            var runtime = RuntimeFactory.Create();63            var config = Configuration.Create();64            config.MaxSchedulingSteps = 100;65            runtime.Configure(config);66            var actor = runtime.CreateActor(typeof(MyActor));67            await runtime.SendEvent(actor, new MyEvent());68            runtime.Close();69        }70    }71    {72        public int Value;73    }74    {75        protected override async Task OnInitializeAsync(Event initialEvent)76        {77            await Task.CompletedTask;78        }79    }80}

Using AI Code Generation

1using System;2using Microsoft.Coyote.Actors;3using Microsoft.Coyote.Specifications;4using System.Threading.Tasks;5{6    {7        static void Main(string[] args)8        {9            var runtime = RuntimeFactory.Create();10            runtime.CreateActor(typeof(Monitor));11            runtime.Run();12        }13    }14    {15        private EventQueue queue;16        [OnEventDoAction(typeof(UnitEvent), nameof(Init))]17        private class Init : State { }18        private void Init()19        {20            this.queue = new EventQueue();21            this.queue.Close();22        }23    }24}25   at Microsoft.Coyote.Actors.EventQueue.Enqueue(Event e)26   at CoyoteTest.Monitor.Init() in C:\Users\user\source\repos\CoyoteTest\CoyoteTest\Program.cs:line 30

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.TestingServices;5{6    {7        public static async Task Main(string[] args)8        {9            var configuration = Configuration.Create();10            configuration.MaxSchedulingSteps = 1000;11            configuration.MaxFairSchedulingSteps = 1000;12            configuration.TestingIterations = 1000;13            configuration.Verbose = 2;14            configuration.RandomSchedulingSeed = 0;15            configuration.SchedulingStrategy = SchedulingStrategy.DFS;16            configuration.EnableCycleDetection = true;17            configuration.EnableDataRaceDetection = true;18            configuration.EnableIntegerOverflowDetection = true;19            configuration.EnableDeadlockDetection = true;20            configuration.EnableTaskDebugging = true;21            configuration.EnableActorDebugging = true;22            var test = new Microsoft.Coyote.TestingServices.CoyoteTester(configuration);23            await test.RunAsync(async () =>24            {25                var m = Actor.CreateActor(typeof(M));26                var e = Actor.CreateActor(typeof(E));27                var a = Actor.CreateActor(typeof(A), new ActorId("a"), m, e);28                var b = Actor.CreateActor(typeof(B), new ActorId("b"), e);29                var c = Actor.CreateActor(typeof(C), new ActorId("c"), m, e);30                var d = Actor.CreateActor(typeof(D), new ActorId("d"), m, e);31                var f = Actor.CreateActor(typeof(F), new ActorId("f"), m, e);32                var g = Actor.CreateActor(typeof(G), new ActorId("g"), m, e);33                var h = Actor.CreateActor(typeof(H), new ActorId("h"), m, e);34                var i = Actor.CreateActor(typeof(I), new ActorId("i"), m, e);35                var j = Actor.CreateActor(typeof(J), new ActorId("j"), m, e);36                var k = Actor.CreateActor(typeof(K), new ActorId("k"), m, e);37                var l = Actor.CreateActor(typeof(L), new ActorId("l"), m, e);38                var n = Actor.CreateActor(typeof(N), new ActorId("n"), m, e);39                var o = Actor.CreateActor(typeof(O), new ActorId("o"), m, e);40                var p = Actor.CreateActor(typeof(P), new ActorId("p"), m, e);

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.Runtime;5{6    {7        static void Main(string[] args)8        {9            var configuration = Configuration.Create();10            configuration.WithVerbosityEnabled();11            var runtime = RuntimeFactory.Create(configuration);12            runtime.CreateActor(typeof(Actor1));13            runtime.CreateActor(typeof(Actor2));14            runtime.Wait();15        }16    }17    {18        private EventQueue queue = new EventQueue();19        protected override async Task OnInitializeAsync(Event initialEvent)20        {21            await this.SendEventAndExecuteAsync(this.Id, new E());22        }23        protected override Task OnEventAsync(Event e)24        {25            switch (e)26            {27                    this.queue.Close();28                    return Task.CompletedTask;29                    return Task.CompletedTask;30            }31        }32        protected override async Task OnHaltAsync(Event e)33        {34            await this.queue.CloseAsync();35        }36    }37    {38        protected override async Task OnInitializeAsync(Event initialEvent)39        {40            await this.SendEventAndExecuteAsync(this.Id, new E());41        }42        protected override Task OnEventAsync(Event e)43        {44            switch (e)45            {46                    return Task.CompletedTask;47                    return Task.CompletedTask;48            }49        }50    }51    {52    }53}

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4{5    {6        static void Main(string[] args)7        {8            var evtQ = new EventQueue();9            var evt = new Event();10            evtQ.Enqueue(evt);11            evtQ.Close();12            {13                evtQ.Enqueue(evt);14            }15            catch (InvalidOperationException e)16            {17                Console.WriteLine("Exception caught: {0}", e.Message);18            }19            Console.WriteLine("Press any key to exit.");20            Console.ReadKey();21        }22    }23}24using System;25using System.Threading.Tasks;26using Microsoft.Coyote;27{28    {29        static void Main(string[] args)30        {31            var evtQ = new EventQueue();32            var evt = new Event();33            evtQ.Enqueue(evt);34            evtQ.Close();35            {36                evtQ.Enqueue(evt);37            }38            catch (InvalidOperationException e)39            {40                Console.WriteLine("Exception caught: {0}", e.Message);41            }42            Console.WriteLine("Press any key to exit.");43            Console.ReadKey();44        }45    }46}47using System;48using System.Threading.Tasks;49using Microsoft.Coyote;50{51    {52        static void Main(string[] args)53        {54            var evtQ = new EventQueue();55            var evt = new Event();56            evtQ.Enqueue(evt);57            evtQ.Close();58            {59                evtQ.Enqueue(evt);60            }61            catch (InvalidOperationException e)62            {63                Console.WriteLine("Exception caught: {0}", e.Message);64            }65            Console.WriteLine("Press any key to exit.");66            Console.ReadKey();67        }68    }69}70using System;71using System.Threading.Tasks;72using Microsoft.Coyote;73{74    {75        static void Main(string

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.Specifications;5{6    {7        public int Value;8        public E(int v) { Value = v; }9    }10    {11        static async Task Main(string[] args)12        {13            var config = Configuration.Create();14            config.LivenessTemperatureThreshold = 50;15            using (var runtime = Runtime.Create(config))16            {17                var m = runtime.CreateActor(typeof(M));18                runtime.SendEvent(m, new E(1));19                runtime.SendEvent(m, new E(2));20                runtime.SendEvent(m, new E(3));21                runtime.SendEvent(m, new E(4));22                runtime.SendEvent(m, new E(5));23                runtime.SendEvent(m, new E(6));24                runtime.SendEvent(m, new E(7));25                runtime.SendEvent(m, new E(8));26                runtime.SendEvent(m, new E(9));27                runtime.SendEvent(m, new E(10));28                runtime.SendEvent(m, new E(11));29                runtime.SendEvent(m, new E(12));30                runtime.SendEvent(m, new E(13));31                runtime.SendEvent(m, new E(14));32                runtime.SendEvent(m, new E(15));33                runtime.SendEvent(m, new E(16));34                runtime.SendEvent(m, new E(17));35                runtime.SendEvent(m, new E(18));36                runtime.SendEvent(m, new E(19));37                runtime.SendEvent(m, new E(20));38                runtime.SendEvent(m, new E(21));39                runtime.SendEvent(m, new E(22));40                runtime.SendEvent(m, new E(23));41                runtime.SendEvent(m, new E(24));42                runtime.SendEvent(m, new E(25));43                runtime.SendEvent(m, new E(26));44                runtime.SendEvent(m, new E(27));45                runtime.SendEvent(m, new E(28));46                runtime.SendEvent(m, new E(29));47                runtime.SendEvent(m, new E(30));48                runtime.SendEvent(m, new E(31));49                runtime.SendEvent(m, new E(32));50                runtime.SendEvent(m, new E(33));51                runtime.SendEvent(m, new E(34));52                runtime.SendEvent(m, new

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