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

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

EventQueue.cs

Source:EventQueue.cs

...96                return enqueueStatus;97            }98            else99            {100                this.OnEnqueueEvent(e, eventGroup, info);101            }102            return enqueueStatus;103        }104        /// <inheritdoc/>105        public (DequeueStatus status, Event e, EventGroup eventGroup, EventInfo info) Dequeue()106        {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)]257        protected virtual void OnEnqueueEvent(Event e, EventGroup eventGroup, EventInfo eventInfo) =>258            this.Owner.OnEnqueueEvent(e, eventGroup, eventInfo);259        /// <summary>260        /// Notifies the actor that an event has been raised.261        /// </summary>262        [MethodImpl(MethodImplOptions.AggressiveInlining)]263        protected virtual void OnRaiseEvent(Event e, EventGroup eventGroup, EventInfo eventInfo) =>264            this.Owner.OnRaiseEvent(e, eventGroup, eventInfo);265        /// <summary>266        /// Notifies the actor that it is waiting to receive an event of one of the specified types.267        /// </summary>268        [MethodImpl(MethodImplOptions.AggressiveInlining)]269        protected virtual void OnWaitEvent(IEnumerable<Type> eventTypes) => this.Owner.OnWaitEvent(eventTypes);270        /// <summary>271        /// Notifies the actor that an event it was waiting to receive has been enqueued.272        /// </summary>...

TestEventQueue.cs

Source:TestEventQueue.cs

...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        {54            foreach (var type in eventTypes)55            {56                this.Logger.WriteLine("Waits to receive event of type '{0}'.", type.FullName);...

OnEnqueueEvent

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Coyote;7using Microsoft.Coyote.Actors;8using Microsoft.Coyote.Actors.Timers;9{10    {11        static void Main(string[] args)12        {13            var runtime = RuntimeFactory.Create();14            runtime.RegisterMonitor(typeof(EventQueueMonitor));15            runtime.CreateActor(typeof(MyActor));16            runtime.Start();17        }18    }19    {20        [OnEntry(nameof(InitOnEntry))]21        [OnEventGotoState(typeof(ConfigureEventQueue), typeof(ConfigureEventQueueState))]22        [OnEventGotoState(typeof(StartEventQueue), typeof(StartEventQueueState))]23        class Init : MonitorState { }24        void InitOnEntry()25        {26            this.RaiseGotoStateEvent<ConfigureEventQueue>();27        }28        [OnEntry(nameof(ConfigureEventQueueOnEntry))]29        [OnEventGotoState(typeof(StartEventQueue), typeof(StartEventQueueState))]30        class ConfigureEventQueueState : MonitorState { }31        void ConfigureEventQueueOnEntry()32        {33            this.Assert(this.Runtime is Microsoft.Coyote.Runtime);34            Microsoft.Coyote.Runtime coyoteRuntime = (Microsoft.Coyote.Runtime)this.Runtime;35            coyoteRuntime.EventQueue.OnEnqueueEvent += this.OnEnqueueEvent;36            this.RaiseGotoStateEvent<StartEventQueue>();37        }38        [OnEntry(nameof(StartEventQueueOnEntry))]39        [OnEventGotoState(typeof(StopEventQueue), typeof(StopEventQueueState))]40        class StartEventQueueState : MonitorState { }41        void StartEventQueueOnEntry()42        {43            this.RaiseGotoStateEvent<StopEventQueue>();44        }45        [OnEntry(nameof(StopEventQueueOnEntry))]46        [OnEventGotoState(typeof(StopEventQueue), typeof(StopEventQueueState))]47        class StopEventQueueState : MonitorState { }48        void StopEventQueueOnEntry()49        {50            this.Assert(this.Runtime is Microsoft.Coyote.Runtime);51            Microsoft.Coyote.Runtime coyoteRuntime = (Microsoft.Coyote.Runtime)this.Runtime;52            coyoteRuntime.EventQueue.OnEnqueueEvent -= this.OnEnqueueEvent;53            this.RaiseHaltEvent();54        }55        void OnEnqueueEvent(object sender, Microsoft.Coyote.A

OnEnqueueEvent

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Coyote.Actors;7using Microsoft.Coyote.Actors.Timers;8{9    {10        protected override async Task OnInitializeAsync(Event initialEvent)11        {12            await this.RegisterTimerAsync("timer1", new MyTimerEvent(), TimeSpan.FromSeconds(2), TimeSpan.FromSeconds(2));13        }14        protected override Task OnEventAsync(Event e)15        {16            if (e is MyTimerEvent)17            {18                this.SendEvent(this.Id, new MyEvent());19                return Task.CompletedTask;20            }21            else if (e is MyEvent)22            {23                Console.WriteLine("Actor1 received MyEvent");24                return Task.CompletedTask;25            }26            {27                return Task.CompletedTask;28            }29        }30    }31}32using System;33using System.Collections.Generic;34using System.Linq;35using System.Text;36using System.Threading.Tasks;37using Microsoft.Coyote.Actors;38using Microsoft.Coyote.Actors.Timers;39{40    {41        protected override async Task OnInitializeAsync(Event initialEvent)42        {43            await this.RegisterTimerAsync("timer1", new MyTimerEvent(), TimeSpan.FromSeconds(2), TimeSpan.FromSeconds(2));44        }45        protected override Task OnEventAsync(Event e)46        {47            if (e is MyTimerEvent)48            {49                this.SendEvent(this.Id, new MyEvent());50                return Task.CompletedTask;51            }52            else if (e is MyEvent)53            {54                Console.WriteLine("Actor2 received MyEvent");55                return Task.CompletedTask;56            }57            {58                return Task.CompletedTask;59            }60        }61    }62}63using System;64using System.Collections.Generic;65using System.Linq;66using System.Text;67using System.Threading.Tasks;68using Microsoft.Coyote.Actors;69using Microsoft.Coyote.Actors.Timers;70{71    {72        protected override async Task OnInitializeAsync(Event initialEvent)73        {74            await this.RegisterTimerAsync("timer1",

OnEnqueueEvent

Using AI Code Generation

1using System;2using Microsoft.Coyote;3using Microsoft.Coyote.Actors;4{5    {6        static void Main(string[] args)7        {8            EventQueue queue = new EventQueue();9            queue.OnEnqueueEvent += (sender, e) => { Console.WriteLine("Event enqueued"); };10            queue.EnqueueEvent(new Event());11            Console.ReadLine();12        }13    }14}15using System;16using Microsoft.Coyote;17using Microsoft.Coyote.Actors;18{19    {20        static void Main(string[] args)21        {22            EventQueue queue = new EventQueue();23            queue.OnDequeueEvent += (sender, e) => { Console.WriteLine("Event dequeued"); };24            queue.EnqueueEvent(new Event());25            queue.DequeueEvent();26            Console.ReadLine();27        }28    }29}30using System;31using Microsoft.Coyote;32using Microsoft.Coyote.Actors;33{34    {35        static void Main(string[] args)36        {37            ActorRuntime runtime = new ActorRuntime();38            runtime.OnRaiseEvent += (sender, e) => { Console.WriteLine("Event raised"); };39            runtime.SendEvent(new ActorId(), new Event());40            Console.ReadLine();41        }42    }43}44using System;45using Microsoft.Coyote;46using Microsoft.Coyote.Actors;47{48    {49        static void Main(string[] args)50        {51            ActorRuntime runtime = new ActorRuntime();52            runtime.OnSendEvent += (sender, e) => { Console.WriteLine("Event sent"); };53            runtime.SendEvent(new ActorId(), new Event());54            Console.ReadLine();55        }56    }57}58using System;59using Microsoft.Coyote;60using Microsoft.Coyote.Actors;61{62    {63        static void Main(string[] args)64        {

OnEnqueueEvent

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Tasks;6using Microsoft.Coyote.SystematicTesting;7using Microsoft.Coyote.Actors.SystematicTesting;8{9    {10        static void Main(string[] args)11        {12            var runtime = RuntimeFactory.Create();13            var testableRuntime = (TestableRuntime)runtime;14            var eventQueue = new EventQueue();15            testableRuntime.SetEventQueue(eventQueue);16            var actor = new ActorId(1);17            var e = new Event();18            eventQueue.OnEnqueueEvent(actor, e, 0);19        }20    }21}22public void OnEnqueueEvent(ActorId actor, Event e, int groupId)23{24    var wrapper = new EventWrapper(e, groupId, this.IdGenerator.GetNextId());25    this.EnqueueEvent(actor, wrapper);26}27private void EnqueueEvent(ActorId actor, EventWrapper wrapper)28{29    this.Queue.Enqueue(wrapper);30    this.Runtime.NotifyEventEnqueued();31}

OnEnqueueEvent

Using AI Code Generation

1{2    {3        public void OnEnqueueEvent(ActorId actorId, Event e, int queueSize)4        {5        }6    }7}8{9    {10        public void OnEnqueueEvent(ActorId actorId, Event e, int queueSize)11        {12        }13    }14}

OnEnqueueEvent

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Actors;4using Microsoft.Coyote.Runtime;5{6    {7        public static void Main(string[] args)8        {9            var runtime = RuntimeFactory.Create();10            runtime.CreateActor(typeof(Actor1));11            Console.ReadLine();12        }13    }14    {15        protected override async Task OnInitializeAsync(Event initialEvent)16        {17            this.OnEnqueueEvent(new Event1());18            await Task.CompletedTask;19        }20    }21    {22    }23}24using System;25using System.Threading.Tasks;26using Microsoft.Coyote.Actors;27using Microsoft.Coyote.Runtime;28{29    {30        public static void Main(string[] args)31        {32            var runtime = RuntimeFactory.Create();33            runtime.CreateActor(typeof(Actor1));34            Console.ReadLine();35        }36    }37    {38        protected override async Task OnInitializeAsync(Event initialEvent)39        {40            this.OnEnqueueEvent(new Event1());41            await Task.CompletedTask;42        }43    }44    {45    }46}47protected override async Task OnInitializeAsync(Event initialEvent)48{49    this.OnEnqueueEvent(new Event1());50    await Task.CompletedTask;51}52runtime.CreateActor(typeof(Actor1));53var runtime = RuntimeFactory.Create();54public void CoyoteTest()55{56    var configuration = Configuration.Create();57    configuration.TestingIterations = 1000;58    configuration.SchedulingIterations = 100;

OnEnqueueEvent

Using AI Code Generation

1using System;2using Microsoft.Coyote.Actors;3using Microsoft.Coyote.Specifications;4using System.Threading.Tasks;5{6    {7        public int Value;8    }9    {10        [OnEventDoAction(typeof(MyEvent), nameof(Handler))]11        {12        }13        private void Handler(Event e)14        {15            var myEvent = (MyEvent)e;16            this.Assert(myEvent.Value == 1, "Expected value is 1.");17        }18    }19    {20        static void Main(string[] args)21        {22            Console.WriteLine("Hello World!");23            var runtime = RuntimeFactory.Create();24            runtime.CreateActor(typeof(MyActor));25            var queue = runtime.GetEventQueue(typeof(MyActor));26            queue.OnEnqueueEvent += (sender, e) =>27            {28                var myEvent = (MyEvent)e;29                Console.WriteLine($"Event enqueued with value {myEvent.Value}.");30            };31            queue.EnqueueEvent(new MyEvent { Value = 1 });32            runtime.Wait();33            Console.WriteLine("Done");34        }35    }36}37using System;38using Microsoft.Coyote.Actors;39using Microsoft.Coyote.Specifications;40using System.Threading.Tasks;41{42    {43        public int Value;44    }45    {46        [OnEventDoAction(typeof(MyEvent), nameof(Handler))]

OnEnqueueEvent

Using AI Code Generation

1{2    {3        {4            OnEnqueueEvent(new E());5        }6    }7}8{9    {10        {11            OnDequeueEvent();12        }13    }14}15{16    {17        {18            OnDequeueEvent();19        }20    }21}22{23    {24        {25            OnDequeueEvent();26        }27    }28}29{30    {31        {32            OnDequeueEvent();33        }34    }35}36{37    {38        {39            OnDequeueEvent();40        }41    }42}

OnEnqueueEvent

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Coyote.Actors;7using Microsoft.Coyote;8{9    {10        static void Main(string[] args)11        {12            var actor = Actor.Create<Actor1>(new ActorId(1));13            var e = new Event1();14            actor.Runtime.EnqueueEvent(actor.Id, e);15        }16    }17    {18    }19    {20        protected override Task OnInitializeAsync(Event initialEvent)21        {22            return Task.CompletedTask;23        }24        protected override Task OnEventAsync(Event e)25        {26            return Task.CompletedTask;27        }28    }29}30using System;31using System.Collections.Generic;32using System.Linq;33using System.Text;34using System.Threading.Tasks;35using Microsoft.Coyote.Actors;36using Microsoft.Coyote;37{38    {39        static void Main(string[] args)40        {41            var actor = Actor.Create<Actor1>(new ActorId(1));42            var e = new Event1();43            actor.Runtime.EnqueueEvent(actor.Id, e);44        }45    }46    {47    }48    {49        protected override Task OnInitializeAsync(Event initialEvent)50        {51            return Task.CompletedTask;52        }53        protected override Task OnEventAsync(Event e)54        {55            return Task.CompletedTask;

OnEnqueueEvent

Using AI Code Generation

1public class e1 : Event { }2{3    protected override async Task OnInitializeAsync(Event initialEvent)4    {5        this.Runtime.OnEnqueueEvent(new e1());6    }7}8public class e1 : Event { }9{10    protected override async Task OnInitializeAsync(Event initialEvent)11    {12        Event e = this.Runtime.OnDequeueEvent();13    }14}15public class e1 : Event { }16{17    protected override async Task OnInitializeAsync(Event initialEvent)18    {19        Event e = this.Runtime.OnDequeueEvent();20    }21}22public class e1 : Event { }23{24    protected override async Task OnInitializeAsync(Event initialEvent)25    {26        this.Runtime.OnEnqueueEvent(new e1());27    }28}29public class e1 : Event { }30{31    protected override async Task OnInitializeAsync(Event initialEvent)32    {33        this.Runtime.OnEnqueueEvent(new e1());34    }35}

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