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

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

EventQueue.cs

Source:EventQueue.cs

...107            // Try to get the raised event, if there is one. Raised events108            // have priority over the events in the inbox.109            if (this.RaisedEvent != default)110            {111                if (this.IsEventIgnored(this.RaisedEvent.e))112                {113                    // TODO: should the user be able to raise an ignored event?114                    // The raised event is ignored in the current state.115                    this.OnIgnoreEvent(this.RaisedEvent.e, this.RaisedEvent.eventGroup, null);116                    this.RaisedEvent = default;117                }118                else119                {120                    (Event e, EventGroup eventGroup) = this.RaisedEvent;121                    this.RaisedEvent = default;122                    return (DequeueStatus.Raised, e, eventGroup, null);123                }124            }125            lock (this.Queue)126            {127                // Try to dequeue the next event, if there is one.128                var node = this.Queue.First;129                while (node != null)130                {131                    // Iterates through the events in the inbox.132                    if (this.IsEventIgnored(node.Value.e))133                    {134                        // Removes an ignored event.135                        var nextNode = node.Next;136                        this.Queue.Remove(node);137                        this.OnIgnoreEvent(node.Value.e, node.Value.eventGroup, null);138                        node = nextNode;139                        continue;140                    }141                    else if (this.IsEventDeferred(node.Value.e))142                    {143                        // Skips a deferred event.144                        this.OnDeferEvent(node.Value.e, node.Value.eventGroup, null);145                        node = node.Next;146                        continue;147                    }148                    // Found next event that can be dequeued.149                    this.Queue.Remove(node);150                    return (DequeueStatus.Success, node.Value.e, node.Value.eventGroup, null);151                }152                // No event can be dequeued, so check if there is a default event handler.153                if (!this.IsDefaultHandlerAvailable())154                {155                    // There is no default event handler installed, so do not return an event.156                    // Setting IsEventHandlerRunning must happen inside the lock as it needs157                    // to be synchronized with the enqueue and starting a new event handler.158                    this.IsEventHandlerRunning = false;159                    return (DequeueStatus.NotAvailable, null, null, null);160                }161            }162            // TODO: check op-id of default event.163            // A default event handler exists.164            return (DequeueStatus.Default, DefaultEvent.Instance, null, null);165        }166        /// <inheritdoc/>167        public void RaiseEvent(Event e, EventGroup eventGroup = null)168        {169            this.RaisedEvent = (e, eventGroup);170            this.OnRaiseEvent(e, eventGroup, null);171        }172        //// <inheritdoc/>173        public Task<Event> ReceiveEventAsync(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.ReceiveEventAsync(eventWaitTypes);180        }181        /// <inheritdoc/>182        public Task<Event> ReceiveEventAsync(params Type[] eventTypes)183        {184            var eventWaitTypes = new Dictionary<Type, Func<Event, bool>>();185            foreach (var type in eventTypes)186            {187                eventWaitTypes.Add(type, null);188            }189            return this.ReceiveEventAsync(eventWaitTypes);190        }191        /// <inheritdoc/>192        public Task<Event> ReceiveEventAsync(params Tuple<Type, Func<Event, bool>>[] events)193        {194            var eventWaitTypes = new Dictionary<Type, Func<Event, bool>>();195            foreach (var e in events)196            {197                eventWaitTypes.Add(e.Item1, e.Item2);198            }199            return this.ReceiveEventAsync(eventWaitTypes);200        }201        /// <summary>202        /// Waits for an event to be enqueued based on the conditions defined in the event wait types.203        /// </summary>204        private Task<Event> ReceiveEventAsync(Dictionary<Type, Func<Event, bool>> eventWaitTypes)205        {206            (Event e, EventGroup eventGroup) receivedEvent = default;207            lock (this.Queue)208            {209                var node = this.Queue.First;210                while (node != null)211                {212                    // Dequeue the first event that the caller waits to receive, if there is one in the queue.213                    if (eventWaitTypes.TryGetValue(node.Value.e.GetType(), out Func<Event, bool> predicate) &&214                        (predicate is null || predicate(node.Value.e)))215                    {216                        receivedEvent = node.Value;217                        this.Queue.Remove(node);218                        break;219                    }220                    node = node.Next;221                }222                if (receivedEvent == default)223                {224                    this.ReceiveCompletionSource = new TaskCompletionSource<Event>();225                    this.EventWaitTypes = eventWaitTypes;226                }227            }228            if (receivedEvent == default)229            {230                // Note that EventWaitTypes is racy, so should not be accessed outside231                // the lock, this is why we access eventWaitTypes instead.232                this.OnWaitEvent(eventWaitTypes.Keys);233                return this.ReceiveCompletionSource.Task;234            }235            this.OnReceiveEventWithoutWaiting(receivedEvent.e, receivedEvent.eventGroup, null);236            return Task.FromResult(receivedEvent.e);237        }238        /// <summary>239        /// Checks if the specified event is currently ignored.240        /// </summary>241        [MethodImpl(MethodImplOptions.AggressiveInlining)]242        protected virtual bool IsEventIgnored(Event e) => this.Owner.IsEventIgnored(e);243        /// <summary>244        /// Checks if the specified event is currently deferred.245        /// </summary>246        [MethodImpl(MethodImplOptions.AggressiveInlining)]247        protected virtual bool IsEventDeferred(Event e) => this.Owner.IsEventDeferred(e);248        /// <summary>249        /// Checks if a default handler is currently available.250        /// </summary>251        [MethodImpl(MethodImplOptions.AggressiveInlining)]252        protected virtual bool IsDefaultHandlerAvailable() => this.Owner.IsDefaultHandlerInstalled();253        /// <summary>254        /// Notifies the actor that an event has been enqueued.255        /// </summary>256        [MethodImpl(MethodImplOptions.AggressiveInlining)]...

TestEventQueue.cs

Source:TestEventQueue.cs

...35            this.DeferredEvents = deferredEvents ?? Array.Empty<Type>();36            this.IsDefaultHandlerInstalled = isDefaultHandlerInstalled;37            this.IsEventHandlerRunning = true;38        }39        protected override bool IsEventIgnored(Event e) => this.IgnoredEvents.Contains(e.GetType());40        protected override bool IsEventDeferred(Event e) => this.DeferredEvents.Contains(e.GetType());41        protected override bool IsDefaultHandlerAvailable() => this.IsDefaultHandlerInstalled;42        protected override void OnEnqueueEvent(Event e, EventGroup eventGroup, EventInfo eventInfo)43        {44            this.Logger.WriteLine("Enqueued event of type '{0}'.", e.GetType().FullName);45            this.Notify(Notification.EnqueueEvent, e, eventInfo);46        }47        protected override void OnRaiseEvent(Event e, EventGroup eventGroup, EventInfo eventInfo)48        {49            this.Logger.WriteLine("Raised event of type '{0}'.", e.GetType().FullName);50            this.Notify(Notification.RaiseEvent, e, eventInfo);51        }52        protected override void OnWaitEvent(IEnumerable<Type> eventTypes)53        {...

IsEventIgnored

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.Runtime;7using Microsoft.Coyote.Specifications;8using Microsoft.Coyote.Tasks;9using Microsoft.Coyote.TestingServices;10{11    {12        private static async Task Main(string[] args)13        {14            var config = Configuration.Create().WithTestingIterations(1000);15            var test = new IsEventIgnoredTesting();16            await test.ExecuteAsync(config);17        }18    }19    {20        public void TestIsEventIgnored()21        {22            this.Test(r =>23            {24                var e = new E();25                var m = new Machine1();26                r.CreateActor(typeof(Machine1));27                r.SendEvent(m.Id, e);28                r.Assert(!r.IsEventIgnored(m.Id, e));29                r.SendEvent(m.Id, new Halt());30                r.Assert(r.IsEventIgnored(m.Id, e));31            });32        }33    }34    {35        [OnEntry(nameof(InitOnEntry))]36        [OnEventDoAction(typeof(E), nameof(HandleE))]37        {38        }39        private void InitOnEntry()40        {41            this.RaiseGotoStateEvent<Init>();42        }43        private void HandleE()44        {45        }46    }47    {48    }49}50using System;51using System.Threading.Tasks;52using Microsoft.Coyote;53using Microsoft.Coyote.Actors;54using Microsoft.Coyote.Actors.Timers;55using Microsoft.Coyote.Runtime;56using Microsoft.Coyote.Specifications;57using Microsoft.Coyote.Tasks;58using Microsoft.Coyote.TestingServices;59{60    {61        private static async Task Main(string[] args)62        {63            var config = Configuration.Create().WithTestingIterations(1000);64            var test = new IsEventIgnoredTesting();65            await test.ExecuteAsync(config);66        }67    }68    {

IsEventIgnored

Using AI Code Generation

1using System;2using Microsoft.Coyote;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.Actors.Timers;5using Microsoft.Coyote.Specifications;6using Microsoft.Coyote.SystematicTesting;7using Microsoft.Coyote.Tasks;8using Microsoft.Coyote.TestingServices;9using Microsoft.Coyote.TestingServices.SchedulingStrategies;10using Microsoft.Coyote.TestingServices.Tracing.Schedule;11using Microsoft.Coyote.Tests.Common;12using Microsoft.Coyote.Tests.Common.Actors;13using Microsoft.Coyote.Tests.Common.Actors.BugFinding;14using Microsoft.Coyote.Tests.Common.Actors.EventLogging;15using Microsoft.Coyote.Tests.Common.Actors.EventScheduling;16using Microsoft.Coyote.Tests.Common.Actors.StateCaching;17using Microsoft.Coyote.Tests.Common.Actors.StateCaching.BugFinding;18using Microsoft.Coyote.Tests.Common.Actors.StateCaching.EventScheduling;19using Microsoft.Coyote.Tests.Common.Actors.StateCaching.EventScheduling.BugFinding;20using Microsoft.Coyote.Tests.Common.Actors.StateCaching.EventScheduling.Timers;21using Microsoft.Coyote.Tests.Common.Actors.StateCaching.Timers;22using Microsoft.Coyote.Tests.Common.Actors.Timers;23using Microsoft.Coyote.Tests.Common.Events;24using Microsoft.Coyote.Tests.Common.Events.BugFinding;25using Microsoft.Coyote.Tests.Common.Events.EventScheduling;26using Microsoft.Coyote.Tests.Common.Events.EventScheduling.BugFinding;27using Microsoft.Coyote.Tests.Common.Events.Timers;28using Microsoft.Coyote.Tests.Common.TestTypes;29using Microsoft.Coyote.Tests.Common.TestTypes.BugFinding;30using Microsoft.Coyote.Tests.Common.TestTypes.EventScheduling;31using Microsoft.Coyote.Tests.Common.TestTypes.Timers;32using Microsoft.Coyote.Tests.Common.TestTypes.Timers.BugFinding;33using Microsoft.Coyote.Tests.Common.TestTypes.Timers.EventScheduling;34using Microsoft.Coyote.Tests.Common.TestTypes.Timers.EventScheduling.BugFinding;35using Microsoft.Coyote.Tests.Common.TestTypes.Timers.EventScheduling.BugFinding.Timers;36using Microsoft.Coyote.Tests.Common.TestTypes.Timers.EventScheduling.BugFinding.Timers.BugFinding;37using Microsoft.Coyote.Tests.Common.TestTypes.Timers.EventScheduling.BugFinding.Timers.BugFinding.Timers;

IsEventIgnored

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.Actors.Timers;5using Microsoft.Coyote.Specifications;6using Microsoft.Coyote.SystematicTesting;7using Microsoft.Coyote.Tasks;8{9    {10        static void Main(string[] args)11        {12            var configuration = Configuration.Create();13            configuration.SchedulingIterations = 1000;14            configuration.SchedulingStrategy = SchedulingStrategy.DFS;15            configuration.EnableCycleDetection = true;16            configuration.EnableDataRaceDetection = true;17            configuration.EnableHotStateDetection = true;18            configuration.EnableLivelockDetection = true;19            configuration.EnableOperationStackTraces = true;20            configuration.EnableTaskDebugging = true;21            configuration.EnableActorDebugging = true;22            configuration.EnableStateGraph = true;23            configuration.EnableStateGraphScheduling = true;24            configuration.EnableBuggyStateGraphScheduling = true;25            configuration.EnableRandomExecution = true;26            configuration.EnableFairScheduling = true;27            configuration.EnableFairSchedulingWithPriorityQueues = true;28            configuration.EnableFairSchedulingWithFairQueues = true;29            configuration.EnableFairSchedulingWithFairQueuesAndPriorityQueues = true;30            configuration.EnableFairSchedulingWithFairQueuesAndFairPriorityQueues = true;31            configuration.EnableFairSchedulingWithFairQueuesAndFairPriorityQueuesAndFairRandomQueues = true;32            configuration.EnableFairSchedulingWithFairQueuesAndFairPriorityQueuesAndFairRandomQueuesAndFairTimersQueue = true;33            configuration.EnableFairSchedulingWithFairQueuesAndFairPriorityQueuesAndFairRandomQueuesAndFairTimersQueueAndFairEventQueues = true;34            configuration.EnableFairSchedulingWithFairQueuesAndFairPriorityQueuesAndFairRandomQueuesAndFairTimersQueueAndFairEventQueuesAndFairTaskQueues = true;35            configuration.EnableFairSchedulingWithFairQueuesAndFairPriorityQueuesAndFairRandomQueuesAndFairTimersQueueAndFairEventQueuesAndFairTaskQueuesAndFairTaskQueues = true;36            configuration.EnableFairSchedulingWithFairQueuesAndFairPriorityQueuesAndFairRandomQueuesAndFairTimersQueueAndFairEventQueuesAndFairTaskQueuesAndFairTaskQueuesAndFairTaskQueues = true;

IsEventIgnored

Using AI Code Generation

1using Microsoft.Coyote.Actors;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static void Main(string[] args)10        {11            EventQueue queue = new EventQueue();12            queue.Enqueue(new Event());13            queue.Enqueue(new E

IsEventIgnored

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Specifications;6using Microsoft.Coyote.Tasks;7{8    {9        [OnEventDoAction(typeof(UnitEvent), nameof(HandleUnitEvent))]10        class Init : State { }11        private void HandleUnitEvent()12        {

IsEventIgnored

Using AI Code Generation

1using Microsoft.Coyote.Actors;2using Microsoft.Coyote.Actors.Timers;3using Microsoft.Coyote.Runtime;4using System;5using System.Threading.Tasks;6{7    {8        static async Task Main(string[] args)9        {10            using var runtime = RuntimeFactory.Create();11            var actor = runtime.CreateActor(typeof(MyActor));12            await runtime.SendEvent(actor, new MyEvent());13            await runtime.WaitAsync();14        }15    }16    {17        protected override async Task OnInitializeAsync(Event initialEvent)18        {19            var timer = this.RegisterTimer("MyTimer", new MyEvent(), TimeSpan.FromSeconds(5), TimeSpan.FromSeconds(5));20            await this.ReceiveEventAsync<MyEvent>();21            this.CancelTimer(timer);22            await this.ReceiveEventAsync<MyEvent>();23        }24    }25    {26    }27}28using Microsoft.Coyote.Actors;29using Microsoft.Coyote.Actors.Timers;30using Microsoft.Coyote.Runtime;31using System;32using System.Threading.Tasks;33{34    {35        static async Task Main(string[] args)36        {37            using var runtime = RuntimeFactory.Create();38            var actor = runtime.CreateActor(typeof(MyActor));39            await runtime.SendEvent(actor, new MyEvent());40            await runtime.WaitAsync();41        }42    }43    {44        protected override async Task OnInitializeAsync(Event initialEvent)45        {46            var timer = this.RegisterTimer("MyTimer", new MyEvent(), TimeSpan.FromSeconds(5), TimeSpan.FromSeconds(5));47            await this.ReceiveEventAsync<MyEvent>();48            this.CancelTimer(timer);49            await this.ReceiveEventAsync<MyEvent>();50        }51        protected override void OnEventIgnored(Event e)52        {53            base.OnEventIgnored(e);54        }55    }56    {57    }58}59using Microsoft.Coyote.Actors;60using Microsoft.Coyote.Actors.Timers;61using Microsoft.Coyote.Runtime;62using System;63using System.Threading.Tasks;

IsEventIgnored

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Specifications;6using Microsoft.Coyote.SystematicTesting;7using Microsoft.Coyote.Tasks;8{9    {10        static void Main(string[] args)11        {12            var configuration = Configuration.Create().WithTestingIterations(1000);13            var testEngine = TestingEngineFactory.CreateBugFindingEngine(configuration, Test1);14            testEngine.Run();15        }16        static async Task Test1()17        {18            var runtime = RuntimeFactory.Create();19            var actor = runtime.CreateActor(typeof(MyActor));20            runtime.SendEvent(actor, new E1());21            runtime.SendEvent(actor, new E2());22            runtime.SendEvent(actor, new E3());23            runtime.SendEvent(actor, new E4());24            runtime.SendEvent(actor, new E5());25            await Task.CompletedTask;26        }27    }28    class E1 : Event { }29    class E2 : Event { }30    class E3 : Event { }31    class E4 : Event { }32    class E5 : Event { }33    {34        [OnEventDoAction(typeof(E1), nameof(OnE1))]35        [OnEventDoAction(typeof(E2), nameof(OnE2))]36        [OnEventDoAction(typeof(E3), nameof(OnE3))]37        [OnEventDoAction(typeof(E4), nameof(OnE4))]38        [OnEventDoAction(typeof(E5), nameof(OnE5))]39        class Init : State { }40        void OnE1()41        {42            this.Assert(!this.EventQueue.IsEventIgnored(typeof(E2)));43            this.Assert(!this.EventQueue.IsEventIgnored(typeof(E3)));44            this.Assert(!this.EventQueue.IsEventIgnored(typeof(E4)));45            this.Assert(!this.EventQueue.IsEventIgnored(typeof(E5)));46        }47        void OnE2()48        {49            this.Assert(this.EventQueue.IsEventIgnored(typeof(E1)));50            this.Assert(!this.EventQueue.IsEventIgnored(typeof(E3)));51            this.Assert(!this.EventQueue.IsEventIgnored(typeof(E4)));52            this.Assert(!this.EventQueue.IsEventIgnored(typeof(E5)));53        }54        void OnE3()55        {

IsEventIgnored

Using AI Code Generation

1{2    public static void Main()3    {4        var runtime = CoyoteRuntime.Create();5        runtime.CreateActor(typeof(MyActor));6        runtime.SendEvent(new MyEvent());7        runtime.SendEvent(new MyEvent());8    }9}10{11    [OnEventDoAction(typeof(MyEvent), nameof(MyAction))]12    [OnEventDoAction(typeof(MyEvent), nameof(MyAction))]13    private class MyState : State { }14    private void MyAction()15    {16        this.Assert(!this.IsEventIgnored(typeof(MyEvent), nameof(MyAction)));17    }18}19{20    public static void Main()21    {22        var runtime = CoyoteRuntime.Create();23        runtime.CreateActor(typeof(MyActor));24        runtime.SendEvent(new MyEvent());25        runtime.SendEvent(new MyEvent());26    }27}28{29    [OnEventDoAction(typeof(MyEvent), nameof(MyAction))]30    private class MyState : State { }31    [OnEventDoAction(typeof(MyEvent), nameof(MyAction))]32    private class MyState2 : State { }33    private void MyAction()34    {35        this.Assert(this.IsEventIgnored(typeof(MyEvent), nameof(MyAction)));36    }37}38{39    public static void Main()40    {41        var runtime = CoyoteRuntime.Create();42        runtime.CreateActor(typeof(MyActor));43        runtime.SendEvent(new MyEvent());44        runtime.SendEvent(new MyEvent());45    }46}47{

IsEventIgnored

Using AI Code Generation

1public static void CheckIsEventIgnored()2{3    var config = Configuration.Create();4    config.SchedulingIterations = 10;5    config.SchedulingStrategy = SchedulingStrategy.DFS;6    var runtime = RuntimeFactory.Create(config);7    runtime.CreateActor(typeof(M));8    var result = runtime.Test();9    Console.WriteLine(result);10}11[OnEventDoAction(typeof(e2), nameof(Act))]12{13    [OnEntry(nameof(InitOnEntry))]14    [OnEventGotoState(typeof(e1), typeof(S1))]15    class Init : MachineState { }16    void InitOnEntry()17    {18        this.Raise(new e1());19    }20    [OnEntry(nameof(S1OnEntry))]21    [OnEventGotoState(typeof(e2), typeof(S2))]22    class S1 : MachineState { }23    void S1OnEntry()24    {25        this.Raise(new e2());26    }27    [OnEntry(nameof(S2OnEntry))]28    class S2 : MachineState { }29    void S2OnEntry()30    {31        this.Assert(this.IsEventIgnored(typeof(e2)) == true);32    }33    void Act()34    {35        this.Assert(this.IsEventIgnored(typeof(e2)) == false);36    }37}38class e1 : Event { }39class e2 : Event { }40class e3 : Event { }41class e4 : Event { }42class e5 : Event { }43class e6 : Event { }44class e7 : Event { }45class e8 : Event { }

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