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How to use LazyCreateEvent method of System.Threading.ReaderWriterLock class

Best JustMockLite code snippet using System.Threading.ReaderWriterLock.LazyCreateEvent

ReaderWriterLock.cs

Source:ReaderWriterLock.cs

...52                }53                // Drat, we need to wait.  Mark that we have waiters and wait.  54                if (readEvent == null)      // Create the needed event 55                {56                    LazyCreateEvent(ref readEvent, false);57                    continue;   // since we left the lock, start over. 58                }59                WaitOnEvent(readEvent, ref numReadWaiters, millisecondsTimeout);60            }61            ExitMyLock();62        }63        public void AcquireWriterLock(int millisecondsTimeout)64        {65            EnterMyLock();66            for (; ; )67            {68                if (owners == 0)69                {70                    // Good case, there is no contention, we are basically done71                    owners = -1;    // indicate we have a writer.72                    break;73                }74                // Drat, we need to wait.  Mark that we have waiters and wait.75                if (writeEvent == null)     // create the needed event.76                {77                    LazyCreateEvent(ref writeEvent, true);78                    continue;   // since we left the lock, start over. 79                }80                WaitOnEvent(writeEvent, ref numWriteWaiters, millisecondsTimeout);81            }82            ExitMyLock();83        }84        public void UpgradeToWriterLock(int millisecondsTimeout)85        {86            EnterMyLock();87            for (; ; )88            {89                Debug.Assert(owners > 0, "Upgrading when no reader lock held");90                if (owners == 1)91                {92                    // Good case, there is no contention, we are basically done93                    owners = -1;    // inidicate we have a writer. 94                    break;95                }96                // Drat, we need to wait.  Mark that we have waiters and wait. 97                if (upgradeEvent == null)   // Create the needed event98                {99                    LazyCreateEvent(ref upgradeEvent, false);100                    continue;   // since we left the lock, start over. 101                }102                if (numUpgradeWaiters > 0)103                {104                    ExitMyLock();105                    throw new ApplicationException("UpgradeToWriterLock already in process.  Deadlock!");106                }107                WaitOnEvent(upgradeEvent, ref numUpgradeWaiters, millisecondsTimeout);108            }109            ExitMyLock();110        }111        public void ReleaseReaderLock()112        {113            EnterMyLock();114            Debug.Assert(owners > 0, "ReleasingReaderLock: releasing lock and no read lock taken");115            --owners;116            ExitAndWakeUpAppropriateWaiters();117        }118        public void ReleaseWriterLock()119        {120            EnterMyLock();121            Debug.Assert(owners == -1, "Calling ReleaseWriterLock when no write lock is held");122            Debug.Assert(numUpgradeWaiters > 0);123            owners++;124            ExitAndWakeUpAppropriateWaiters();125        }126        public void DowngradeToReaderLock()127        {128            EnterMyLock();129            Debug.Assert(owners == -1, "Downgrading when no writer lock held");130            owners = 1;131            ExitAndWakeUpAppropriateWaiters();132        }133        /// <summary>134        /// A routine for lazily creating a event outside the lock (so if errors135        /// happen they are outside the lock and that we don't do much work136        /// while holding a spin lock).  If all goes well, reenter the lock and137        /// set 'waitEvent' 138        /// </summary>139        private void LazyCreateEvent(ref WaitHandle waitEvent, bool makeAutoResetEvent)140        {141            Debug.Assert(MyLockHeld);142            Debug.Assert(waitEvent == null);143            ExitMyLock();144            WaitHandle newEvent;145            if (makeAutoResetEvent)146                newEvent = new AutoResetEvent(false);147            else148                newEvent = new ManualResetEvent(false);149            EnterMyLock();150            if (waitEvent == null)          // maybe someone snuck in. 151                waitEvent = newEvent;152        }153        /// <summary>...

LazyCreateEvent

Using AI Code Generation

1using System;2using System.Threading;3{4    static void Main()5    {6        ReaderWriterLock rwl = new ReaderWriterLock();7        AutoResetEvent are = new AutoResetEvent(false);8        rwl.LazyCreateEvent(ref are, 0);9        Console.WriteLine("AutoResetEvent created successfully");10    }11}

LazyCreateEvent

Using AI Code Generation

1using System;2using System.Threading;3{4    {5        static void Main(string[] args)6        {7            ReaderWriterLock rwlock = new ReaderWriterLock();8            Console.WriteLine("ReaderWriterLock created");9            rwlock.AcquireReaderLock(Timeout.Infinite);10            Console.WriteLine("Read lock acquired");11            rwlock.AcquireWriterLock(Timeout.Infinite);12            Console.WriteLine("Write lock acquired");13            rwlock.ReleaseReaderLock();14            Console.WriteLine("Read lock released");15            rwlock.ReleaseWriterLock();16            Console.WriteLine("Write lock released");17            rwlock.ReleaseWriterLock();18            Console.WriteLine("Write lock released");19            rwlock.ReleaseReaderLock();20            Console.WriteLine("Read lock released");21            rwlock.ReleaseWriterLock();22            Console.WriteLine("Write lock released");23            rwlock.ReleaseReaderLock();24            Console.WriteLine("Read lock released");25            rwlock.ReleaseWriterLock();26            Console.WriteLine("Write lock released");27            rwlock.ReleaseReaderLock();28            Console.WriteLine("Read lock released");29            rwlock.ReleaseWriterLock();30            Console.WriteLine("Write lock released");31            rwlock.ReleaseReaderLock();32            Console.WriteLine("Read lock released");33            rwlock.ReleaseWriterLock();34            Console.WriteLine("Write lock released");35            rwlock.ReleaseReaderLock();36            Console.WriteLine("Read lock released");37            rwlock.ReleaseWriterLock();38            Console.WriteLine("Write lock released");39            rwlock.ReleaseReaderLock();40            Console.WriteLine("Read lock released");41            rwlock.ReleaseWriterLock();42            Console.WriteLine("Write lock released");43            rwlock.ReleaseReaderLock();44            Console.WriteLine("Read lock released");45            rwlock.ReleaseWriterLock();46            Console.WriteLine("Write lock released");47            rwlock.ReleaseReaderLock();48            Console.WriteLine("Read lock released");49            rwlock.ReleaseWriterLock();50            Console.WriteLine("Write lock released

LazyCreateEvent

Using AI Code Generation

1using System;2using System.Threading;3{4    private ReaderWriterLock rwl = new ReaderWriterLock();5    public void Read()6    {7        rwl.AcquireReaderLock(Timeout.Infinite);8        {9            Console.WriteLine("Reading...");10        }11        {12            rwl.ReleaseReaderLock();13        }14    }15    public void Write()16    {17        rwl.AcquireWriterLock(Timeout.Infinite);18        {19            Console.WriteLine("Writing...");20        }21        {22            rwl.ReleaseWriterLock();23        }24    }25    public static void Main()26    {27        ReaderWriterLockExample rwle = new ReaderWriterLockExample();28        for (int i = 0; i < 3; i++)29        {30            new Thread(rwle.Write).Start();31            new Thread(rwle.Read).Start();32        }33    }34}

LazyCreateEvent

Using AI Code Generation

1using System;2using System.Threading;3{4    public static void Main()5    {6        ReaderWriterLock rwlock = new ReaderWriterLock();7        rwlock.LazyCreateEvent(ref rwlock.m_writeEvent, true);8        Console.WriteLine("WriteEvent created");9        rwlock.LazyCreateEvent(ref rwlock.m_readEvent, false);10        Console.WriteLine("ReadEvent created");11        rwlock.LazyCreateEvent(ref rwlock.m_upgradeEvent, false);12        Console.WriteLine("UpgradeEvent created");13        rwlock.LazyCreateEvent(ref rwlock.m_waitUpgradeEvent, true);14        Console.WriteLine("WaitUpgradeEvent created");15        Console.WriteLine("All Events created");16    }17}

LazyCreateEvent

Using AI Code Generation

1using System;2using System.Threading;3{4    public static void Main()5    {6        ReaderWriterLock rwl = new ReaderWriterLock();7        rwl.AcquireWriterLock(Timeout.Infinite);8        rwl.LazyCreateEvent(ref rwl.m_writeEvent, true);9        rwl.ReleaseWriterLock();10    }11}12using System;13using System.Threading;14{15    public static void Main()16    {17        ReaderWriterLock rwl = new ReaderWriterLock();18        rwl.AcquireWriterLock(Timeout.Infinite);19        rwl.LazyCreateEvent(ref rwl.m_writeEvent, false);20        rwl.ReleaseWriterLock();21    }22}23using System;24using System.Threading;25{26    public static void Main()27    {28        ReaderWriterLock rwl = new ReaderWriterLock();29        rwl.AcquireWriterLock(Timeout.Infinite);30        rwl.LazyCreateEvent(ref rwl.m_upgradeEvent, true);31        rwl.ReleaseWriterLock();32    }33}34using System;35using System.Threading;36{37    public static void Main()38    {39        ReaderWriterLock rwl = new ReaderWriterLock();40        rwl.AcquireWriterLock(Timeout.Infinite);41        rwl.LazyCreateEvent(ref rwl.m_upgradeEvent, false);42        rwl.ReleaseWriterLock();43    }44}45using System;46using System.Threading;47{48    public static void Main()49    {50        ReaderWriterLock rwl = new ReaderWriterLock();51        rwl.AcquireWriterLock(Timeout.Infinite);52        rwl.LazyCreateEvent(ref rwl.m_waitUpgradeEvent, true);53        rwl.ReleaseWriterLock();54    }55}

LazyCreateEvent

Using AI Code Generation

1using System;2using System.Threading;3{4    static void Main()5    {6        ReaderWriterLock rwl = new ReaderWriterLock();7        EventWaitHandle releasedLock = rwl.LazyCreateEvent();8        rwl.AcquireReaderLock(Timeout.Infinite);9        Console.WriteLine("The lock is held.  releasedLock is signaled: {0}", releasedLock.WaitOne(0, false));10        rwl.ReleaseReaderLock();11        Console.WriteLine("The lock is released.  releasedLock is signaled: {0}", releasedLock.WaitOne(0, false));12    }13}14using System;15using System.Threading;16{17    static void Main()18    {19        ReaderWriterLockSlim rwl = new ReaderWriterLockSlim();20        EventWaitHandle releasedLock = rwl.LazyCreateEvent();21        rwl.EnterReadLock();22        Console.WriteLine("The lock is held.  releasedLock is signaled: {0}", releasedLock.WaitOne(0, false));23        rwl.ExitReadLock();24        Console.WriteLine("The lock is released.  releasedLock is signaled: {0}", releasedLock.WaitOne(0, false));25    }26}27using System;28using System.Threading;29{30    static void Main()31    {32        Semaphore sem = new Semaphore(0, 1);33        EventWaitHandle releasedSemaphore = sem.LazyCreateEvent();

LazyCreateEvent

Using AI Code Generation

1using System;2using System.Threading;3{4 {5 static void Main(string[] args)6 {7 ReaderWriterLock rwl = new ReaderWriterLock();8 LockCookie lc = rwl.UpgradeToWriterLock(1000);9 rwl.DowngradeFromWriterLock(ref lc);10 lc = rwl.UpgradeToWriterLock(1000);11 rwl.DowngradeFromWriterLock(ref lc);12 lc = rwl.UpgradeToWriterLock(1000);13 rwl.DowngradeFromWriterLock(ref lc);14 lc = rwl.UpgradeToWriterLock(1000);15 rwl.DowngradeFromWriterLock(ref lc);16 }17 }18}19using System;20using System.Threading;21{22 {23 static void Main(string[] args)24 {25 ReaderWriterLock rwl = new ReaderWriterLock();26 LockCookie lc = rwl.UpgradeToWriterLock(1000);27 rwl.DowngradeFromWriterLock(ref lc);28 lc = rwl.UpgradeToWriterLock(1000);29 rwl.DowngradeFromWriterLock(ref lc);30 lc = rwl.UpgradeToWriterLock(1000);31 rwl.DowngradeFromWriterLock(ref lc);32 lc = rwl.UpgradeToWriterLock(1000);33 rwl.DowngradeFromWriterLock(ref lc);34 }35 }36}37using System;38using System.Threading;39{40 {41 static void Main(string[] args)42 {43 ReaderWriterLock rwl = new ReaderWriterLock();44 LockCookie lc = rwl.UpgradeToWriterLock(1000);

LazyCreateEvent

Using AI Code Generation

1using System;2using System.Threading;3{4    static void Main()5    {6        ReaderWriterLock rwl = new ReaderWriterLock();7        Console.WriteLine("Creating new event object");8        rwl.LazyCreateEvent(ref rwl.m_eventWriteWaiters, true);9        Console.WriteLine("Event object created");10    }11}12using System;13using System.Threading;14{15    static void Main()16    {17        ReaderWriterLock rwl = new ReaderWriterLock();18        Console.WriteLine("Creating new event object");19        rwl.LazyCreateEvent(ref rwl.m_eventUpgradeWaiters, true);20        Console.WriteLine("Event object created");21    }22}23using System;24using System.Threading;25{26    static void Main()27    {28        ReaderWriterLock rwl = new ReaderWriterLock();29        Console.WriteLine("Creating new event object");30        rwl.LazyCreateEvent(ref rwl.m_eventReadWaiters, true);31        Console.WriteLine("Event object created");32    }33}34using System;35using System.Threading;36{37    static void Main()38    {39        ReaderWriterLock rwl = new ReaderWriterLock();40        Console.WriteLine("Creating new event object");41        rwl.LazyCreateEvent(ref rwl.m_eventWriteWaiters, false);42        Console.WriteLine("Event object created");43    }44}45using System;46using System.Threading;

LazyCreateEvent

Using AI Code Generation

1using System;2using System.Threading;3{4{5static ReaderWriterLock rwLock = new ReaderWriterLock();6static void Main(string[] args)7{8Console.WriteLine("Enter the number of threads to be created");9int threadCount = Convert.ToInt32(Console.ReadLine());10Thread[] threads = new Thread[threadCount];11for (int i = 0; i < threadCount; i++)12{13threads[i] = new Thread(new ThreadStart(MyMethod));14threads[i].Name = "Thread" + i;15threads[i].Start();16}17Console.ReadLine();18}19static void MyMethod()20{21Console.WriteLine("Thread {0} is about to enter the lock", Thread.CurrentThread.Name);22rwLock.AcquireReaderLock(1000);23Console.WriteLine("Thread {0} has entered the lock", Thread.CurrentThread.Name);24Thread.Sleep(2000);25rwLock.ReleaseReaderLock();26Console.WriteLine("Thread {0} has exited the lock", Thread.CurrentThread.Name);27}28}29}30using System;31using System.Threading;32{33{34static ReaderWriterLock rwLock = new ReaderWriterLock();35static void Main(string[] args)36{37Console.WriteLine("Enter the number of threads to be created");38int threadCount = Convert.ToInt32(Console.ReadLine());39Thread[] threads = new Thread[threadCount];40for (int i = 0; i < threadCount; i++)41{42threads[i] = new Thread(new ThreadStart(MyMethod));43threads[i].Name = "Thread" + i;44threads[i].Start();45}

LazyCreateEvent

Using AI Code Generation

1using System;2using System.Threading;3{4    public static void Main()5    {6        ReaderWriterLock myLock = new ReaderWriterLock();7        myLock.AcquireReaderLock(-1);8        Console.WriteLine("Read lock acquired");9        myLock.ReleaseReaderLock();10        Console.WriteLine("Read lock released");11        myLock.AcquireWriterLock(-1);12        Console.WriteLine("Write lock acquired");13        myLock.ReleaseWriterLock();14        Console.WriteLine("Write lock released");15        myLock.AcquireReaderLock(-1);16        Console.WriteLine("Read lock acquired");17        myLock.AcquireWriterLock(-1);18        Console.WriteLine("Write lock acquired");19        myLock.ReleaseReaderLock();20        Console.WriteLine("Read lock released");21        myLock.ReleaseWriterLock();22        Console.WriteLine("Write lock released");23    }24}25using System;26using System.Threading;27{28    public static void Main()29    {30        ReaderWriterLock myLock = new ReaderWriterLock();31        myLock.AcquireReaderLock(-1);32        Console.WriteLine("Read lock acquired");33        myLock.ReleaseReaderLock();34        Console.WriteLine("Read lock released");

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