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How to use Yield method of Microsoft.Coyote.Runtime.SchedulingPoint class

Best Coyote code snippet using Microsoft.Coyote.Runtime.SchedulingPoint.Yield

SchedulingPoint.cs

Source:SchedulingPoint.cs

...37        /// <remarks>38        /// Invoking this method might lower the scheduling priority of the currently executing39        /// operation when certain exploration strategies are used.40        /// </remarks>41        public static void Yield()42        {43            var runtime = CoyoteRuntime.Current;44            if (runtime.SchedulingPolicy != SchedulingPolicy.None &&45                runtime.TryGetExecutingOperation(out ControlledOperation current))46            {47                if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)48                {49                    runtime.ScheduleNextOperation(current, SchedulingPointType.Yield, isSuppressible: false, isYielding: true);50                }51                else if (runtime.SchedulingPolicy is SchedulingPolicy.Fuzzing)52                {53                    runtime.DelayOperation(current);54                }55            }56        }57#pragma warning disable CA1801 // Parameter not used58        /// <summary>59        /// Explores a possible interleaving due to a 'READ' operation on the specified shared state.60        /// </summary>61        /// <param name="state">The shared state that is being read represented as a string.</param>62        /// <param name="comparer">63        /// Checks if the read shared state is equal with another shared state that is being accessed concurrently.64        /// </param>65        public static void Read(string state, IEqualityComparer<string> comparer = default)66        {67            var runtime = CoyoteRuntime.Current;68            if (runtime.SchedulingPolicy != SchedulingPolicy.None &&69                runtime.TryGetExecutingOperation(out ControlledOperation current))70            {71                if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)72                {73                    runtime.ScheduleNextOperation(current, SchedulingPointType.Read, isSuppressible: false);74                }75                else if (runtime.SchedulingPolicy is SchedulingPolicy.Fuzzing)76                {77                    runtime.DelayOperation(current);78                }79            }80        }81        /// <summary>82        /// Explores a possible interleaving due to a 'WRITE' operation on the specified shared state.83        /// </summary>84        /// <param name="state">The shared state that is being written represented as a string.</param>85        /// <param name="comparer">86        /// Checks if the written shared state is equal with another shared state that is being accessed concurrently.87        /// </param>88        public static void Write(string state, IEqualityComparer<string> comparer = default)89        {90            var runtime = CoyoteRuntime.Current;91            if (runtime.SchedulingPolicy != SchedulingPolicy.None &&92                runtime.TryGetExecutingOperation(out ControlledOperation current))93            {94                if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)95                {96                    runtime.ScheduleNextOperation(current, SchedulingPointType.Write, isSuppressible: false);97                }98                else if (runtime.SchedulingPolicy is SchedulingPolicy.Fuzzing)99                {100                    runtime.DelayOperation(current);101                }102            }103        }104        /// <summary>105        /// Suppresses interleavings until <see cref="Resume"/> is invoked.106        /// </summary>107        /// <remarks>108        /// This method does not suppress interleavings that happen when an operation is waiting109        /// some other operation to complete, when an operation completes and the scheduler110        /// switches to a new operation, or interleavings from uncontrolled concurrency.111        /// </remarks>112        public static void Suppress()113        {114            var runtime = CoyoteRuntime.Current;115            if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)116            {117                runtime.SuppressScheduling();118            }119        }120        /// <summary>121        /// Resumes interleavings that were suppressed by invoking <see cref="Suppress"/>.122        /// </summary>123        public static void Resume()124        {125            var runtime = CoyoteRuntime.Current;126            if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)127            {128                runtime.ResumeScheduling();129            }130        }131        /// <summary>132        /// Sets a checkpoint in the execution path that is so far explored during the current133        /// test iteration. This will capture all controlled scheduling and nondeterministic134        /// decisions taken until the checkpoint and the testing engine will then try to replay135        /// the same decisions in subsequent iterations before performing any new exploration.136        /// </summary>137        /// <remarks>138        /// Only a single checkpoint can be set at a time, and invoking this method with an139        /// existing checkpoint will either extend it with new decisions, or overwrite it if140        /// the new checkpoint diverges or is empty.141        /// </remarks>142        public static void SetCheckpoint()143        {144            var runtime = CoyoteRuntime.Current;145            if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)146            {147                runtime.CheckpointExecutionTrace();148            }149        }150        /// <summary>151        /// Returns true if the specified scheduling point is used-defined.152        /// </summary>153        /// <remarks>154        /// A user-defined scheduling point is one that can be explicitly created155        /// by invoking one of the <see cref="SchedulingPoint"/> methods.156        /// </remarks>157        internal static bool IsUserDefined(SchedulingPointType type) =>158            type is SchedulingPointType.Interleave ||159            type is SchedulingPointType.Yield ||160            type is SchedulingPointType.Read ||161            type is SchedulingPointType.Write;162    }163}

SchedulingPointTests.cs

Source:SchedulingPointTests.cs

...43            expectedError: "A: 1, B: 1",44            replay: true);45        }46        [Fact(Timeout = 5000)]47        public void TestYield()48        {49            this.TestWithError(async r =>50            {51                int x = 0;52                int a = 0;53                int b = 0;54                var t1 = Task.Run(async () =>55                {56                    a = x + 1;57                    SchedulingPoint.Yield();58                    x = a;59                    await Task.CompletedTask;60                });61                var t2 = Task.Run(async () =>62                {63                    b = x + 1;64                    SchedulingPoint.Yield();65                    x = b;66                    await Task.CompletedTask;67                });68                await Task.WhenAll(t1, t2);69                Specification.Assert(a > 1 || b > 1, string.Format("A: {0}, B: {1}", a, b));70            },71            configuration: this.GetConfiguration().WithTestingIterations(200),72            expectedError: "A: 1, B: 1",73            replay: true);74        }75        [Fact(Timeout = 5000)]76        public void TestSuppressTaskInterleaving()77        {78            this.Test(async r =>...

PollingTaskLivenessTests.cs

Source:PollingTaskLivenessTests.cs

...26                        if (i is 9)27                        {28                            entry.Value = 1;29                        }30                        await Task.Yield();31                    }32                });33                while (true)34                {35                    if (entry.Value is 1)36                    {37                        break;38                    }39                    await Task.Delay(10);40                }41                await task;42                Specification.Assert(entry.Value is 1, $"Unexpected value {entry.Value}.");43            },44            configuration: this.GetConfiguration().WithTestingIterations(10));...

Yield

Using AI Code Generation

1using Microsoft.Coyote.Runtime;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            SchedulingPoint.Yield();12        }13    }14}15using Microsoft.Coyote.Runtime;16using System;17using System.Collections.Generic;18using System.Linq;19using System.Text;20using System.Threading.Tasks;21{22    {23        static void Main(string[] args)24        {25            SchedulingPoint.Yield();26        }27    }28}29using Microsoft.Coyote.Runtime;30using System;31using System.Collections.Generic;32using System.Linq;33using System.Text;34using System.Threading.Tasks;35{36    {37        static void Main(string[] args)38        {39            SchedulingPoint.Yield();40        }41    }42}43using Microsoft.Coyote.Runtime;44using System;45using System.Collections.Generic;46using System.Linq;47using System.Text;48using System.Threading.Tasks;49{50    {51        static void Main(string[] args)52        {53            SchedulingPoint.Yield();54        }55    }56}57using Microsoft.Coyote.Runtime;58using System;59using System.Collections.Generic;60using System.Linq;61using System.Text;62using System.Threading.Tasks;63{64    {65        static void Main(string[] args)66        {67            SchedulingPoint.Yield();68        }69    }70}71using Microsoft.Coyote.Runtime;72using System;73using System.Collections.Generic;74using System.Linq;75using System.Text;76using System.Threading.Tasks;77{78    {79        static void Main(string[] args)80        {81            SchedulingPoint.Yield();82        }83    }84}

Yield

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Coyote.Runtime;7{8    {9        static void Main(string[] args)10        {11            SchedulingPoint.Yield();12        }13    }14}

Yield

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote;4using Microsoft.Coyote.Actors;5using Microsoft.Coyote.Runtime;6{7    {8        static void Main(string[] args)9        {10            var runtime = RuntimeFactory.Create();11            var task = runtime.CreateActor(typeof(Actor1));12            runtime.Wait(task);13        }14    }15    {16        protected override async Task OnInitializeAsync(Event initialEvent)17        {

Yield

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Threading.Tasks;4using Microsoft.Coyote;5using Microsoft.Coyote.Actors;6using Microsoft.Coyote.Runtime;7using Microsoft.Coyote.Tasks;8{9    {10        [OnEventDoAction(typeof(UnitEvent), nameof(DoWork))]11        {12        }13        private void DoWork()14        {15            SchedulingPoint.Yield();16            this.SendEvent(this.Id, new UnitEvent());17        }18    }19    {20        static void Main(string[] args)21        {22            var config = Configuration.Create().WithNumberOfIterations(100);23            var runtime = RuntimeFactory.Create(config);24            runtime.CreateActor(typeof(MyActor));25            runtime.Wait();26        }27    }28}29using System;30using System.Collections.Generic;31using System.Threading.Tasks;32using Microsoft.Coyote;33using Microsoft.Coyote.Actors;34using Microsoft.Coyote.Runtime;35using Microsoft.Coyote.Tasks;36{37    {38        [OnEventDoAction(typeof(UnitEvent), nameof(DoWork))]39        {40        }41        private void DoWork()42        {43            SchedulingPoint.Yield();44            this.SendEvent(this.Id, new UnitEvent());45        }46    }47    {48        static void Main(string[] args)49        {50            var config = Configuration.Create().WithNumberOfIterations(100);51            var runtime = RuntimeFactory.Create(config);52            runtime.CreateActor(typeof(MyActor));53            runtime.Wait();54        }55    }56}57using System;58using System.Collections.Generic;59using System.Threading.Tasks;60using Microsoft.Coyote;61using Microsoft.Coyote.Actors;62using Microsoft.Coyote.Runtime;63using Microsoft.Coyote.Tasks;64{65    {66        [OnEventDoAction(typeof(UnitEvent), nameof(DoWork))]67        {68        }69        private void DoWork()70        {71            SchedulingPoint.Yield();

Yield

Using AI Code Generation

1{2    {3        public static void Yield() { }4    }5}6using Microsoft.Coyote.Runtime;7{8    static void Main(string[] args)9    {10        SchedulingPoint.Yield();11    }12}13Error 1   The type or namespace name 'Runtime' does not exist in the namespace 'Microsoft.Coyote' (are you missing an assembly reference?)  C:\Users\user\source\repos\Microsoft.Coyote\1.cs  6   Active14Error 1   The type or namespace name 'Test' does not exist in the namespace 'Microsoft.Coyote' (are you missing an assembly reference?)  C:\Users\user\source\repos\Microsoft.Coyote\2.cs  6   Active15using Microsoft.Coyote.Testing;

Yield

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Runtime;4using Microsoft.Coyote.SystematicTesting;5using Microsoft.Coyote.Tasks;6{7    {8        public static void Main()9        {10            CoyoteRuntime.SetSchedulingStrategy(SchedulingStrategy.SystematicTesting);11            SchedulingPoint.Yield();12            Console.WriteLine("Hello World!");13        }14    }15}16using System;17using System.Threading.Tasks;18using Microsoft.Coyote.Runtime;19using Microsoft.Coyote.SystematicTesting;20using Microsoft.Coyote.Tasks;21{22    {23        public static void Main()24        {25            CoyoteRuntime.SetSchedulingStrategy(SchedulingStrategy.SystematicTesting);26            Task.Run(() => SchedulingPoint.Yield());27            Console.WriteLine("Hello World!");28        }29    }30}31using System;32using System.Threading.Tasks;33using Microsoft.Coyote.Runtime;34using Microsoft.Coyote.SystematicTesting;35using Microsoft.Coyote.Tasks;36{37    {38        public static void Main()39        {40            CoyoteRuntime.SetSchedulingStrategy(SchedulingStrategy.SystematicTesting);41            Task.Run(() => SchedulingPoint.Yield());42            Console.WriteLine("Hello World!");43        }44    }45}46using System;47using System.Threading.Tasks;48using Microsoft.Coyote.Runtime;49using Microsoft.Coyote.SystematicTesting;50using Microsoft.Coyote.Tasks;51{52    {53        public static void Main()54        {55            CoyoteRuntime.SetSchedulingStrategy(SchedulingStrategy.SystematicTesting);56            Task.Run(() => SchedulingPoint.Yield());57            Console.WriteLine("Hello World!");58        }59    }60}

Yield

Using AI Code Generation

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

Yield

Using AI Code Generation

1using Microsoft.Coyote.Runtime;2using Microsoft.Coyote.Tasks;3using System;4using System.Threading.Tasks;5{6    public static async Task Main()7    {8        await Task.Run(() => { Console.WriteLine("Hello world!"); });9        SchedulingPoint.Yield();10    }11}

Yield

Using AI Code Generation

1using Microsoft.Coyote.Runtime;2SchedulingPoint.Yield();3using Microsoft.Coyote.Runtime;4SchedulingPoint.Yield();5using Microsoft.Coyote.Runtime;6SchedulingPoint.Yield();7using Microsoft.Coyote.Runtime;8SchedulingPoint.Yield();9using Microsoft.Coyote.Runtime;10SchedulingPoint.Yield();11using Microsoft.Coyote.Runtime;12SchedulingPoint.Yield();13using Microsoft.Coyote.Runtime;14SchedulingPoint.Yield();15using Microsoft.Coyote.Runtime;16SchedulingPoint.Yield();17using Microsoft.Coyote.Runtime;18SchedulingPoint.Yield();19using Microsoft.Coyote.Runtime;20SchedulingPoint.Yield();

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