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Coyote
Microsoft.Coyote.Rewriting.Types.Threading
SemaphoreSlim

How to use SemaphoreSlim class of Microsoft.Coyote.Rewriting.Types.Threading package

Best Coyote code snippet using Microsoft.Coyote.Rewriting.Types.Threading.SemaphoreSlim

TypeRewritingPass.cs

Source:TypeRewritingPass.cs

...70            this.KnownTypes[NameCache.GenericTaskFactory] = typeof(Types.Threading.Tasks.TaskFactory<>);71            this.KnownTypes[NameCache.TaskParallel] = typeof(Types.Threading.Tasks.Parallel);72            // Populate the map with the known synchronization types.73            this.KnownTypes[NameCache.Monitor] = typeof(Types.Threading.Monitor);74            this.KnownTypes[NameCache.SemaphoreSlim] = typeof(Types.Threading.SemaphoreSlim);75#if NET || NETCOREAPP3_176            // Populate the map with the known HTTP and web-related types.77            this.KnownTypes[NameCache.HttpClient] = typeof(Types.Net.Http.HttpClient);78            this.KnownTypes[NameCache.HttpRequestMessage] = typeof(Types.Net.Http.HttpRequestMessage);79#endif80            if (options.IsRewritingConcurrentCollections)81            {82                this.KnownTypes[NameCache.ConcurrentBag] = typeof(Types.Collections.Concurrent.ConcurrentBag<>);83                this.KnownTypes[NameCache.ConcurrentDictionary] = typeof(Types.Collections.Concurrent.ConcurrentDictionary<,>);84                this.KnownTypes[NameCache.ConcurrentQueue] = typeof(Types.Collections.Concurrent.ConcurrentQueue<>);85                this.KnownTypes[NameCache.ConcurrentStack] = typeof(Types.Collections.Concurrent.ConcurrentStack<>);86            }87            if (options.IsDataRaceCheckingEnabled)88            {...

SemaphoreSlim.cs

Source:SemaphoreSlim.cs

...3using System;4using Microsoft.Coyote.Runtime;5using Microsoft.Coyote.Runtime.CompilerServices;6using SystemCancellationToken = System.Threading.CancellationToken;7using SystemSemaphoreSlim = System.Threading.SemaphoreSlim;8using SystemTask = System.Threading.Tasks.Task;9using SystemTasks = System.Threading.Tasks;10using SystemTimeout = System.Threading.Timeout;11namespace Microsoft.Coyote.Rewriting.Types.Threading12{13    /// <summary>14    /// Provides methods for creating semaphores that can be controlled during testing.15    /// </summary>16    /// <remarks>This type is intended for compiler use rather than use directly in code.</remarks>17    [System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]18    public static class SemaphoreSlim19    {20        /// <summary>21        /// Blocks the current task until it can enter the semaphore.22        /// </summary>23        public static void Wait(SystemSemaphoreSlim instance) =>24            Wait(instance, SystemTimeout.Infinite, SystemCancellationToken.None);25        /// <summary>26        /// Blocks the current task until it can enter the semaphore, using a timespan27        /// that specifies the timeout.28        /// </summary>29        public static bool Wait(SystemSemaphoreSlim instance, TimeSpan timeout) =>30            Wait(instance, timeout, SystemCancellationToken.None);31        /// <summary>32        /// Blocks the current task until it can enter the semaphore, using a 32-bit signed integer33        /// that specifies the timeout.34        /// </summary>35        public static bool Wait(SystemSemaphoreSlim instance, int millisecondsTimeout) =>36            Wait(instance, millisecondsTimeout, SystemCancellationToken.None);37        /// <summary>38        /// Blocks the current task until it can enter the semaphore, while observing a cancellation token.39        /// </summary>40        public static void Wait(SystemSemaphoreSlim instance, SystemCancellationToken cancellationToken) =>41            Wait(instance, SystemTimeout.Infinite, cancellationToken);42        /// <summary>43        /// Blocks the current task until it can enter the semaphore, using a timespan44        /// that specifies the timeout, while observing a cancellation token.45        /// </summary>46        public static bool Wait(SystemSemaphoreSlim instance, TimeSpan timeout, SystemCancellationToken cancellationToken)47        {48            long totalMilliseconds = (long)timeout.TotalMilliseconds;49            if (totalMilliseconds < -1 || totalMilliseconds > int.MaxValue)50            {51                throw new ArgumentOutOfRangeException(nameof(timeout));52            }53            return Wait(instance, (int)totalMilliseconds, cancellationToken);54        }55        /// <summary>56        /// Blocks the current task until it can enter the semaphore, using a 32-bit signed integer57        /// that specifies the timeout, while observing a cancellation token.58        /// </summary>59        public static bool Wait(SystemSemaphoreSlim instance, int millisecondsTimeout, SystemCancellationToken cancellationToken)60        {61            var runtime = CoyoteRuntime.Current;62            if (runtime.SchedulingPolicy != SchedulingPolicy.None &&63                runtime.TryGetExecutingOperation(out ControlledOperation current))64            {65                if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)66                {67                    if (runtime.Configuration.IsLockAccessRaceCheckingEnabled)68                    {69                        runtime.ScheduleNextOperation(current, SchedulingPointType.Default);70                    }71                    runtime.PauseOperationUntil(current, () => instance.CurrentCount > 0);72                }73                else if (runtime.SchedulingPolicy is SchedulingPolicy.Fuzzing &&74                    runtime.Configuration.IsLockAccessRaceCheckingEnabled)75                {76                    runtime.DelayOperation(current);77                }78            }79            return instance.Wait(millisecondsTimeout, cancellationToken);80        }81        /// <summary>82        /// Asynchronously waits to enter the semaphore.83        /// </summary>84        public static SystemTask WaitAsync(SystemSemaphoreSlim instance) => WaitAsync(instance, SystemTimeout.Infinite, default);85        /// <summary>86        /// Asynchronously waits to enter the semaphore, while observing a cancellation token.87        /// </summary>88        public static SystemTask WaitAsync(SystemSemaphoreSlim instance, SystemCancellationToken cancellationToken) =>89            WaitAsync(instance, SystemTimeout.Infinite, cancellationToken);90        /// <summary>91        /// Asynchronously waits to enter the semaphore, using a 32-bit signed integer92        /// that specifies the timeout.93        /// </summary>94        public static SystemTasks.Task<bool> WaitAsync(SystemSemaphoreSlim instance, int millisecondsTimeout) =>95            WaitAsync(instance, millisecondsTimeout, default);96        /// <summary>97        /// Asynchronously waits to enter the semaphore, using a timespan that specifies the timeout.98        /// </summary>99        public static SystemTasks.Task<bool> WaitAsync(SystemSemaphoreSlim instance, TimeSpan timeout) =>100            WaitAsync(instance, timeout, default);101        /// <summary>102        /// Asynchronously waits to enter the semaphore, using a timespan103        /// that specifies the timeout, while observing a cancellation token.104        /// </summary>105        public static SystemTasks.Task<bool> WaitAsync(SystemSemaphoreSlim instance, TimeSpan timeout, SystemCancellationToken cancellationToken)106        {107            long totalMilliseconds = (long)timeout.TotalMilliseconds;108            if (totalMilliseconds < -1 || totalMilliseconds > int.MaxValue)109            {110                throw new ArgumentOutOfRangeException(nameof(timeout));111            }112            return WaitAsync(instance, (int)totalMilliseconds, cancellationToken);113        }114        /// <summary>115        /// Asynchronously waits to enter the semaphore, using a 32-bit signed integer116        /// that specifies the timeout, while observing a cancellation token.117        /// </summary>118        public static SystemTasks.Task<bool> WaitAsync(SystemSemaphoreSlim instance, int millisecondsTimeout, SystemCancellationToken cancellationToken)119        {120            var runtime = CoyoteRuntime.Current;121            if (runtime.SchedulingPolicy != SchedulingPolicy.None &&122                runtime.TryGetExecutingOperation(out ControlledOperation current))123            {124                if (runtime.SchedulingPolicy is SchedulingPolicy.Interleaving)125                {126                    if (runtime.Configuration.IsLockAccessRaceCheckingEnabled)127                    {128                        runtime.ScheduleNextOperation(current, SchedulingPointType.Default);129                    }130                    var task = instance.WaitAsync(millisecondsTimeout, cancellationToken);131                    return AsyncTaskAwaiterStateMachine<bool>.RunAsync(runtime, task, true);132                }...

NameCache.cs

Source:NameCache.cs

...60        internal static string TaskFactory { get; } = typeof(SystemTasks.TaskFactory).FullName;61        internal static string GenericTaskFactory { get; } = typeof(SystemTasks.TaskFactory<>).FullName;62        internal static string TaskParallel { get; } = typeof(SystemTasks.Parallel).FullName;63        internal static string Monitor { get; } = typeof(SystemThreading.Monitor).FullName;64        internal static string SemaphoreSlim { get; } = typeof(SystemThreading.SemaphoreSlim).FullName;65        internal static string GenericList { get; } = typeof(SystemGenericCollections.List<>).FullName;66        internal static string GenericDictionary { get; } = typeof(SystemGenericCollections.Dictionary<,>).FullName;67        internal static string GenericHashSet { get; } = typeof(SystemGenericCollections.HashSet<>).FullName;68        internal static string ConcurrentBag { get; } = typeof(SystemConcurrentCollections.ConcurrentBag<>).FullName;69        internal static string ConcurrentDictionary { get; } = typeof(SystemConcurrentCollections.ConcurrentDictionary<,>).FullName;70        internal static string ConcurrentQueue { get; } = typeof(SystemConcurrentCollections.ConcurrentQueue<>).FullName;71        internal static string ConcurrentStack { get; } = typeof(SystemConcurrentCollections.ConcurrentStack<>).FullName;72#if NET || NETCOREAPP3_173        internal static string HttpClient { get; } = typeof(SystemNetHttp.HttpClient).FullName;74        internal static string HttpRequestMessage { get; } = typeof(SystemNetHttp.HttpRequestMessage).FullName;75#endif76    }77}...

SemaphoreSlim

Using AI Code Generation

1using Microsoft.Coyote.Rewriting.Types.Threading;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            Console.WriteLine("Hello World!");9            SemaphoreSlim s = new SemaphoreSlim(1);10            s.Wait();11            s.Release();12        }13    }14}15using Microsoft.Coyote.Rewriting.Types.Threading;16using System;17using System.Threading.Tasks;18{19    {20        static void Main(string[] args)21        {22            Console.WriteLine("Hello World!");23            SemaphoreSlim s = new SemaphoreSlim(1);24            s.Wait();25            s.Release();26        }27    }28}

SemaphoreSlim

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Rewriting.Types.Threading;4{5    {6        static SemaphoreSlim semaphore = new SemaphoreSlim(1, 1);7        static async Task Main(string[] args)8        {9            Console.WriteLine("Hello World!");10            await Task.WhenAll(Enumerable.Range(0, 100).Select(i => Task.Run(async () =>11            {12                await semaphore.WaitAsync();13                {14                    Console.WriteLine("Hello");15                    await Task.Delay(1000);16                    Console.WriteLine("World");17                }18                {19                    semaphore.Release();20                }21            })));22        }23    }24}

SemaphoreSlim

Using AI Code Generation

1using System;2using System.Threading;3using System.Threading.Tasks;4using Microsoft.Coyote.Rewriting.Types.Threading;5{6    {7        static void Main(string[] args)8        {9            SemaphoreSlim s = new SemaphoreSlim(2, 2);10            Console.WriteLine("Waiting for first permit");11            s.Wait();12            Console.WriteLine("Got first permit");13            Console.WriteLine("Waiting for second permit");14            s.Wait();15            Console.WriteLine("Got second permit");16            Console.WriteLine("Releasing first permit");17            s.Release();18            Console.WriteLine("Releasing second permit");19            s.Release();20            Console.WriteLine("Done");21        }22    }23}24using System;25using System.Threading;26using System.Threading.Tasks;27{28    {29        static void Main(string[] args)30        {31            SemaphoreSlim s = new SemaphoreSlim(2, 2);32            Console.WriteLine("Waiting for first permit");33            s.Wait();34            Console.WriteLine("Got first permit");35            Console.WriteLine("Waiting for second permit");36            s.Wait();37            Console.WriteLine("Got second permit");38            Console.WriteLine("Releasing first permit");39            s.Release();40            Console.WriteLine("Releasing second permit");41            s.Release();42            Console.WriteLine("Done");43        }44    }45}46using System;47using System.Threading;48using System.Threading.Tasks;49{50    {51        static void Main(string[] args)52        {53            SemaphoreSlim s = new SemaphoreSlim(2, 2);54            Console.WriteLine("Waiting for first permit");55            s.Wait();56            Console.WriteLine("Got first permit");57            Console.WriteLine("Waiting for second permit");58            s.Wait();59            Console.WriteLine("Got second permit");60            Console.WriteLine("Releasing first permit");61            s.Release();62            Console.WriteLine("Releasing second permit");63            s.Release();64            Console.WriteLine("Done");65        }66    }67}68using System;69using System.Threading;70using System.Threading.Tasks;71{72    {73        static void Main(string[] args)74        {75            SemaphoreSlim s = new SemaphoreSlim(2,

SemaphoreSlim

Using AI Code Generation

1using Microsoft.Coyote.Rewriting.Types.Threading;2using System;3{4    static void Main(string[] args)5    {6        var semaphore = new SemaphoreSlim(1, 1);7        semaphore.Wait();8        Console.WriteLine("Hello World!");9        semaphore.Release();10    }11}12using System;13using System.Threading;14{15    static void Main(string[] args)16    {17        var semaphore = new SemaphoreSlim(1, 1);18        semaphore.Wait();19        Console.WriteLine("Hello World!");20        semaphore.Release();21    }22}

SemaphoreSlim

Using AI Code Generation

1using System;2using System.Threading;3using Microsoft.Coyote.Rewriting.Types.Threading;4{5    static void Main(string[] args)6    {7        SemaphoreSlim semaphore = new SemaphoreSlim(2, 10);8        Console.WriteLine("Starting...");9        for (int i = 0; i < 10; i++)10        {11            semaphore.Wait();12            Console.WriteLine("Semaphore acquired: " + i);13        }14        Console.WriteLine("Done");15    }16}17using System;18using System.Threading;19{20    static void Main(string[] args)21    {22        Semaphore semaphore = new Semaphore(2, 10);23        Console.WriteLine("Starting...");24        for (int i = 0; i < 10; i++)25        {26            semaphore.WaitOne();27            Console.WriteLine("Semaphore acquired: " + i);28        }29        Console.WriteLine("Done");30    }31}

SemaphoreSlim

Using AI Code Generation

1using System.Threading;2using Microsoft.Coyote.Rewriting.Types.Threading;3{4    private static SemaphoreSlim _semaphore;5    private static int _count;6    public static void Main(string[] args)7    {8        _semaphore = new SemaphoreSlim(0, 1);9        _count = 0;10        var t1 = new Thread(() =>11        {12            for (int i = 0; i < 10; i++)13            {14                _semaphore.Wait();15                _count++;16                _semaphore.Release();17            }18        });19        var t2 = new Thread(() =>20        {21            for (int i = 0; i < 10; i++)22            {23                _semaphore.Wait();24                _count--;25                _semaphore.Release();26            }27        });28        t1.Start();29        t2.Start();30        t1.Join();31        t2.Join();32        System.Console.WriteLine(_count);33    }34}35using System.Threading;36{37    private static Semaphore _semaphore;38    private static int _count;39    public static void Main(string[] args)40    {41        _semaphore = new Semaphore(0, 1);42        _count = 0;43        var t1 = new Thread(() =>44        {45            for (int i = 0; i < 10; i++)46            {47                _semaphore.WaitOne();48                _count++;49                _semaphore.Release();50            }51        });52        var t2 = new Thread(() =>53        {54            for (int i = 0; i < 10; i++)55            {56                _semaphore.WaitOne();57                _count--;58                _semaphore.Release();59            }60        });61        t1.Start();62        t2.Start();63        t1.Join();64        t2.Join();65        System.Console.WriteLine(_count);66    }67}

SemaphoreSlim

Using AI Code Generation

1using System.Threading.Tasks;2using Microsoft.Coyote.Rewriting.Types.Threading;3{4    {5        public static async Task Main()6        {7            var semaphore = new SemaphoreSlim(1, 1);8            await semaphore.WaitAsync();9            await semaphore.WaitAsync();10        }11    }12}13using System.Threading.Tasks;14using System.Threading;15{16    {17        public static async Task Main()18        {19            var semaphore = new SemaphoreSlim(1, 1);20            await semaphore.WaitAsync();21            await semaphore.WaitAsync();22        }23    }24}

SemaphoreSlim

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Coyote.Rewriting.Types.Threading;4using Microsoft.Coyote.Specifications;5using Microsoft.Coyote.Tasks;6using Microsoft.Coyote.TestingServices;7using Microsoft.Coyote.TestingServices.Runtime;8{9    {10        static void Main(string[] args)11        {12            var configuration = Configuration.Create();13            configuration.SchedulingIterations = 100;14            configuration.SchedulingStrategy = SchedulingStrategy.FairPCT;15            configuration.SchedulingSeed = 1;16            configuration.Verbose = 2;17            configuration.TestReportDirectory = "reports";18            configuration.TestReportFileName = "TestReport.txt";19            configuration.EnableDataRaceDetection = true;20            configuration.EnableCycleDetection = true;21            configuration.EnableHotStateDetection = true;22            configuration.EnableLivenessChecking = true;23            configuration.EnableFullExploration = true;24            configuration.EnableRandomExecution = true;25            configuration.EnableBoundedRandomExecution = true;26            configuration.BoundedRandomExecutionMaxSteps = 100;27            configuration.EnableFairScheduling = true;28            var testEngine = TestingEngineFactory.Create(configuration, typeof(Test));29            testEngine.Run();30        }31    }32    {33        private SemaphoreSlim semaphoreSlim;34        [OnEntry(nameof(InitOnEntry))]35        [OnEventDoAction(typeof(UnitEvent), nameof(TestMethod))]36        class Init : State { }37        private void InitOnEntry()38        {39            this.semaphoreSlim = new SemaphoreSlim(1, 1);40            this.RaiseEvent(new UnitEvent());41        }42        private async Task TestMethod()43        {44            await semaphoreSlim.WaitAsync();45            semaphoreSlim.Release();46        }47    }48}49using System;50using System.Threading;51using System.Threading.Tasks;52using Microsoft.Coyote.Specifications;53using Microsoft.Coyote.Tasks;54using Microsoft.Coyote.TestingServices;55using Microsoft.Coyote.TestingServices.Runtime;56{57    {58        static void Main(string[] args)59        {60            var configuration = Configuration.Create();61            configuration.SchedulingIterations = 100;62            configuration.SchedulingStrategy = SchedulingStrategy.FairPCT;

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