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How to use UnlockNextReady method of Microsoft.Coyote.Rewriting.Types.Threading.Monitor class

Best Coyote code snippet using Microsoft.Coyote.Rewriting.Types.Threading.Monitor.UnlockNextReady

Monitor.cs

Source:Monitor.cs

...478                    var pulseOperation = this.PulseQueue.Dequeue();479                    this.Pulse(pulseOperation);480                    if (this.Owner is null)481                    {482                        this.UnlockNextReady();483                    }484                }485            }486            /// <summary>487            /// Invokes the pulse operation.488            /// </summary>489            private void Pulse(PulseOperation pulseOperation)490            {491                if (pulseOperation is PulseOperation.Next)492                {493                    if (this.WaitQueue.Count > 0)494                    {495                        // System.Threading.Monitor has FIFO semantics.496                        var waitingOp = this.WaitQueue[0];497                        this.WaitQueue.RemoveAt(0);498                        this.ReadyQueue.Add(waitingOp);499                        IO.Debug.WriteLine("[coyote::debug] Operation '{0}' is pulsed by task '{1}'.",500                            waitingOp.Id, SystemTask.CurrentId);501                    }502                }503                else504                {505                    foreach (var waitingOp in this.WaitQueue)506                    {507                        this.ReadyQueue.Add(waitingOp);508                        IO.Debug.WriteLine("[coyote::debug] Operation '{0}' is pulsed by task '{1}'.",509                            waitingOp.Id, SystemTask.CurrentId);510                    }511                    this.WaitQueue.Clear();512                }513            }514            /// <summary>515            /// Releases the lock on an object and blocks the current thread until it reacquires516            /// the lock.517            /// </summary>518            internal bool Wait()519            {520                var op = this.Resource.Runtime.GetExecutingOperation();521                if (this.Owner != op)522                {523                    throw new SystemSynchronizationLockException();524                }525                this.ReadyQueue.Remove(op);526                if (!this.WaitQueue.Contains(op))527                {528                    this.WaitQueue.Add(op);529                }530                this.UnlockNextReady();531                IO.Debug.WriteLine("[coyote::debug] Operation '{0}' with task id '{1}' is waiting.",532                    op.Id, SystemTask.CurrentId);533                // Block this operation and schedule the next enabled operation.534                this.Resource.Wait();535                return true;536            }537            /// <summary>538            /// Releases the lock on an object and blocks the current thread until it reacquires539            /// the lock. If the specified time-out interval elapses, the thread enters the ready540            /// queue.541            /// </summary>542#pragma warning disable CA1801 // Parameter not used543            internal bool Wait(int millisecondsTimeout)544            {545                // TODO: how to implement timeout?546                // This is a bit more tricky to model, one way is to have a loop that checks547                // for controlled random boolean choice, and if it becomes true then it fails548                // the wait. This would be similar to timers in actors, so we want to use a549                // lower probability to not fail very frequently during systematic testing.550                // In the future we might want to introduce a RandomTimeout choice (similar to551                // RandomBoolean and RandomInteger), with the benefit being that the underlying552                // testing strategy will know that this is a timeout and perhaps treat it in a553                // more intelligent manner, but for now piggybacking on the other randoms should554                // work (as long as its not with a high probability).555                return this.Wait();556            }557#pragma warning restore CA1801 // Parameter not used558            /// <summary>559            /// Releases the lock on an object and blocks the current thread until it reacquires560            /// the lock. If the specified time-out interval elapses, the thread enters the ready561            /// queue.562            /// </summary>563#pragma warning disable CA1801 // Parameter not used564            internal bool Wait(TimeSpan timeout)565            {566                // TODO: how to implement timeout?567                return this.Wait();568            }569#pragma warning restore CA1801 // Parameter not used570            /// <summary>571            /// Assigns the lock to the next operation waiting in the ready queue, if there is one,572            /// following the FIFO semantics of monitor.573            /// </summary>574            private void UnlockNextReady()575            {576                // Preparing to unlock so give up ownership.577                this.Owner = null;578                if (this.ReadyQueue.Count > 0)579                {580                    // If there is a operation waiting in the ready queue, then signal it.581                    ControlledOperation op = this.ReadyQueue[0];582                    this.ReadyQueue.RemoveAt(0);583                    this.Owner = op;584                    this.Resource.Signal(op);585                }586            }587            internal void Exit()588            {589                var op = this.Resource.Runtime.GetExecutingOperation();590                this.Resource.Runtime.Assert(this.LockCountMap.ContainsKey(op),591                    "Cannot invoke Dispose without acquiring the lock.");592                this.LockCountMap[op]--;593                if (this.LockCountMap[op] is 0)594                {595                    // Only release the lock if the invocation is not reentrant.596                    this.LockCountMap.Remove(op);597                    this.UnlockNextReady();598                    this.Resource.Runtime.ScheduleNextOperation(op, SchedulingPointType.Release);599                }600                int useCount = SystemInterlocked.Decrement(ref this.UseCount);601                if (useCount is 0 && Cache[this.SyncObject].Value == this)602                {603                    // It is safe to remove this instance from the cache.604                    Cache.TryRemove(this.SyncObject, out _);605                }606            }607            /// <summary>608            /// Releases resources used by the synchronized block.609            /// </summary>610            protected void Dispose(bool disposing)611            {...

UnlockNextReady

Using AI Code Generation

1{2    {3        public static void Enter(object obj)4        {5            if (obj == null)6            {7                throw new ArgumentNullException(nameof(obj));8            }9            if (obj is IAsyncMonitor monitor)10            {11                monitor.Lock();12            }13            {14                lock (obj)15                {16                }17            }18        }19        public static void Exit(object obj)20        {21            if (obj == null)22            {23                throw new ArgumentNullException(nameof(obj));24            }25            if (obj is IAsyncMonitor monitor)26            {27                monitor.Unlock();28            }29            {30                lock (obj)31                {32                }33            }34        }35        public static bool TryEnter(object obj)36        {37            if (obj == null)38            {39                throw new ArgumentNullException(nameof(obj));40            }41            if (obj is IAsyncMonitor monitor)42            {43                return monitor.TryLock();44            }45            {46                lock (obj)47                {48                }49                return true;50            }51        }52        public static bool TryEnter(object obj, int millisecondsTimeout)53        {54            if (obj == null)55            {56                throw new ArgumentNullException(nameof(obj));57            }58            if (obj is IAsyncMonitor monitor)59            {60                return monitor.TryLock(millisecondsTimeout);61            }62            {63                lock (obj)64                {65                }66                return true;67            }68        }69        public static bool TryEnter(object obj, TimeSpan timeout)70        {71            if (obj == null)72            {73                throw new ArgumentNullException(nameof(obj));74            }75            if (obj is IAsyncMonitor monitor)76            {77                return monitor.TryLock(timeout);78            }79            {80                lock (obj)81                {82                }83                return true;84            }85        }86        public static void Pulse(object obj)87        {88            if (obj == null)89            {90                throw new ArgumentNullException(nameof(obj));91            }92            if (obj is IAsyncMonitor monitor)93            {94                monitor.Pulse();95            }96            {97                lock (obj)98                {99                    Monitor.Pulse(obj);100                }101            }102        }103        public static void PulseAll(object obj)104        {105            if (obj == null)106            {107                throw new ArgumentNullException(nameof(obj));108            }109            if (obj is IAsyncMonitor monitor)110            {111                monitor.PulseAll();112            }113            {

UnlockNextReady

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Tasks;6using Microsoft.Coyote.Rewriting.Types.Threading;7{8    {9        static void Main(string[] args)10        {11            var config = Configuration.Create().WithVerbosityEnabled(3);12            Runner.Run(config, () => {13                var obj = new object();14                lock (obj)15                {16                    Task.Run(() => {17                        Monitor.Enter(obj);18                        Monitor.Exit(obj);19                    });20                    Monitor.UnlockNextReady(obj);21                }22            });23        }24    }25}26using System;27using System.Threading.Tasks;28using Microsoft.Coyote;29using Microsoft.Coyote.Actors;30using Microsoft.Coyote.Tasks;31using Microsoft.Coyote.Rewriting.Types.Threading;32{33    {34        static void Main(string[] args)35        {36            var config = Configuration.Create().WithVerbosityEnabled(3);37            Runner.Run(config, () => {38                var obj = new object();39                lock (obj)40                {41                    Task.Run(() => {42                        Monitor.Enter(obj);43                        Monitor.Exit(obj);44                    });45                    Monitor.UnlockNextReady(obj);46                }47            });48        }49    }50}51using System;52using System.Threading.Tasks;53using Microsoft.Coyote;54using Microsoft.Coyote.Actors;55using Microsoft.Coyote.Tasks;56using Microsoft.Coyote.Rewriting.Types.Threading;57{58    {59        static void Main(string[] args)60        {61            var config = Configuration.Create().WithVerbosityEnabled(3);62            Runner.Run(config, () => {63                var obj = new object();64                lock (obj)65                {66                    Task.Run(() => {67                        Monitor.Enter(obj);68                        Monitor.Exit(obj);69                    });70                    Monitor.UnlockNextReady(obj);71                }72            });73        }74    }75}76using System;77using System.Threading.Tasks;78using Microsoft.Coyote;

UnlockNextReady

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Rewriting.Types.Threading;6{7    {8        static void Main(string[] args)9        {10            var runtime = RuntimeFactory.Create();11            runtime.RegisterMonitor(typeof(Monitor));12            runtime.CreateActor(typeof(Actor1));13            runtime.CreateActor(typeof(Actor2));14            runtime.CreateActor(typeof(Actor3));15            runtime.Run();16        }17    }18    {19        protected override async Task OnInitializeAsync(Event initialEvent)20        {21            await this.Runtime.CreateActor(typeof(Actor4));22        }23    }24    {25        protected override async Task OnInitializeAsync(Event initialEvent)26        {27            await this.Runtime.CreateActor(typeof(Actor5));28        }29    }30    {31        protected override async Task OnInitializeAsync(Event initialEvent)32        {33            await this.Runtime.CreateActor(typeof(Actor6));34        }35    }36    {37        protected override async Task OnInitializeAsync(Event initialEvent)38        {39            await Task.Delay(100);40            Monitor.UnlockNextReady();41            await Task.Delay(100);42            Monitor.UnlockNextReady();43            await Task.Delay(100);44            Monitor.UnlockNextReady();45        }46    }47    {48        protected override async Task OnInitializeAsync(Event initialEvent)49        {50            await Task.Delay(100);51            Monitor.UnlockNextReady();52            await Task.Delay(100);53            Monitor.UnlockNextReady();54            await Task.Delay(100);55            Monitor.UnlockNextReady();56        }57    }58    {59        protected override async Task OnInitializeAsync(Event initialEvent)60        {61            await Task.Delay(100);62            Monitor.UnlockNextReady();63            await Task.Delay(100);64            Monitor.UnlockNextReady();65            await Task.Delay(100);66            Monitor.UnlockNextReady();67        }68    }69    {70        [OnEventGotoState(typeof(UnlockNextReady), typeof(Ready))]71        class Init : State { }72        [OnEventGotoState(typeof(UnlockNextReady), typeof(Ready))]73        class Ready : State { }74        [OnEventGotoState(typeof(UnlockNext

UnlockNextReady

Using AI Code Generation

1using System;2using System.Threading;3using Microsoft.Coyote.Rewriting.Types.Threading;4{5    {6        static readonly object lockObj = new object();7        static int x = 0;8        static void Main(string[] args)9        {10            Thread t = new Thread(Increment);11            t.Start();12            Monitor.Enter(lockObj);13            while (x < 100)14            {15                Monitor.Wait(lockObj);16            }17            Console.WriteLine("x = {0}", x);18            Monitor.Exit(lockObj);19            t.Join();20        }21        static void Increment()22        {23            for (int i = 0; i < 100; i++)24            {25                Monitor.Enter(lockObj);26                x++;27                Monitor.Exit(lockObj);28                Monitor.PulseAll(lockObj);29            }30        }31    }32}33using System;34using System.Threading;35using Microsoft.Coyote.Rewriting.Types.Threading;36{37    {38        static readonly object lockObj = new object();39        static int x = 0;40        static void Main(string[] args)41        {42            Thread t = new Thread(Increment);43            t.Start();44            Monitor.Enter(lockObj);45            while (x < 100)46            {47                Monitor.Wait(lockObj);48            }49            Console.WriteLine("x = {0}", x);50            Monitor.Exit(lockObj);51            t.Join();52        }53        static void Increment()54        {55            for (int i = 0; i < 100; i++)56            {57                Monitor.Enter(lockObj);58                x++;59                Monitor.Exit(lockObj);60                Monitor.PulseAll(lockObj);61            }62        }63    }64}65using System;66using System.Threading;67using Microsoft.Coyote.Rewriting.Types.Threading;68{69    {70        static readonly object lockObj = new object();71        static int x = 0;72        static void Main(string[] args)73        {74            Thread t = new Thread(Increment);75            t.Start();76            Monitor.Enter(lockObj);

UnlockNextReady

Using AI Code Generation

1using System;2using Microsoft.Coyote.Rewriting.Types.Threading;3{4    {5        private static void Main(string[] args)6        {7            Monitor.Enter(new object());8            Monitor.Enter(new object())

UnlockNextReady

Using AI Code Generation

1{2    static void Main(string[] args)3    {4        Monitor m = new Monitor();5        m.Enter();6        m.Exit();7        m.Enter();8        m.Exit();9    }10}11{12    static void Main(string[] args)13    {14        Monitor m = new Monitor();15        m.Enter();16        m.Exit();17        m.Enter();18        m.Exit();19    }20}21{22    static void Main(string[] args)23    {24        Monitor m = new Monitor();25        m.Enter();26        m.Exit();27        m.Enter();28        m.Exit();29    }30}31{32    static void Main(string[] args)33    {34        Monitor m = new Monitor();35        m.Enter();36        m.Exit();37        m.Enter();38        m.Exit();39    }40}41{42    static void Main(string[] args)43    {44        Monitor m = new Monitor();45        m.Enter();46        m.Exit();47        m.Enter();48        m.Exit();49    }50}51{52    static void Main(string[] args)53    {54        Monitor m = new Monitor();55        m.Enter();56        m.Exit();57        m.Enter();58        m.Exit();59    }60}61{62    static void Main(string[] args)63    {64        Monitor m = new Monitor();65        m.Enter();66        m.Exit();67        m.Enter();68        m.Exit();69    }70}71{72    static void Main(string[] args)73    {

UnlockNextReady

Using AI Code Generation

1using System;2using System.Threading;3using System.Threading.Tasks;4using Microsoft.Coyote;5using Microsoft.Coyote.Actors;6using Microsoft.Coyote.Rewriting.Types.Threading;7using Microsoft.Coyote.Specifications;8{9    {10        public static void Main(string[] args)11        {12            Runtime.RegisterMonitor(typeof(MyMonitor));13            Runtime.Run(new Configuration(), () => {14                var t1 = Task.Run(() => {15                    Monitor.Enter(1);16                    Monitor.Enter(2);17                    Monitor.Exit(2);18                    Monitor.Exit(1);19                });20                var t2 = Task.Run(() => {21                    Monitor.Enter(2);22                    Monitor.Enter(1);23                    Monitor.Exit(1);24                    Monitor.Exit(2);25                });26                Task.WaitAll(t1, t2);27            });28        }29    }30    {31        [OnEventGotoState(typeof(UnitEvent), typeof(Ready))]32        class Init : MonitorState { }33        [OnEventGotoState(typeof(UnitEvent), typeof(Ready))]34        [OnEventDoAction(typeof(MonitorLockEvent), nameof(HandleLock))]35        [OnEventDoAction(typeof(MonitorUnlockEvent), nameof(HandleUnlock))]36        class Ready : MonitorState { }37        private void HandleLock(Event e)38        {39            var le = e as MonitorLockEvent;40            if (le.MonitorId == 1)41            {42                this.Assert(le.ThreadId == 1);43            }44            else if (le.MonitorId == 2)45            {46                this.Assert(le.ThreadId == 2);47            }48            {49                this.Assert(false);50            }51        }52        private void HandleUnlock(Event e)53        {54            var ue = e as MonitorUnlockEvent;55            if (ue.MonitorId == 1)56            {57                this.Assert(ue.ThreadId == 1);58                this.Assert(ue.NextReadyThreadId == 2);59                Monitor.UnlockNextReady(1);60            }61            else if (ue.MonitorId == 2)62            {63                this.Assert(ue.ThreadId == 2);64                this.Assert(ue.NextReadyThreadId == 1);65                Monitor.UnlockNextReady(2);66            }67            {68                this.Assert(false);69            }70        }71    }72}

UnlockNextReady

Using AI Code Generation

1using System.Threading;2{3    {4        public static void Main()5        {6            object lockObj = new object();7            Monitor.Enter(lockObj);8            Monitor.Enter(lockObj);9            Monitor.UnlockNextReady(lockObj);10            Monitor.Exit(lockObj);11            Monitor.UnlockNextReady(lockObj);12            Monitor.Exit(lockObj);13        }14    }15}16using System.Threading;17{18    {19        public static void Main()20        {21            object lockObj = new object();22            Monitor.Enter(lockObj);23            Monitor.Enter(lockObj);24            Monitor.UnlockNextReady(lockObj);25            Monitor.Exit(lockObj);26            Monitor.Exit(lockObj);27        }28    }29}30using System.Threading;31{32    {33        public static void Main()34        {35            object lockObj = new object();36            Monitor.Enter(lockObj);37            Monitor.Enter(lockObj);38            Monitor.UnlockNextReady(lockObj);39            Monitor.Exit(lockObj);40            Monitor.UnlockNextReady(lockObj);41            Monitor.Exit(lockObj);42            Monitor.Exit(lockObj);43        }44    }45}46using System.Threading;47{48    {49        public static void Main()50        {51            object lockObj = new object();52            Monitor.Enter(lockObj);53            Monitor.Enter(lockObj);54            Monitor.UnlockNextReady(lockObj);55            Monitor.Exit(lockObj);56            Monitor.Exit(lockObj);57            Monitor.UnlockNextReady(lockObj);58        }59    }60}61using System.Threading;62{63    {64        public static void Main()65        {66            object lockObj = new object();67            Monitor.Enter(lockObj);68            Monitor.Enter(lockObj);69            Monitor.UnlockNextReady(lockObj);70            Monitor.Exit(lockObj);71            Monitor.UnlockNextReady(lockObj);72            Monitor.Exit(lockObj);73            Monitor.Exit(lockObj);

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