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C# ReaderWriterLockSlim.TryEnterUpgradeableReadLock方法代码示例

本文整理汇总了C#中System.Threading.ReaderWriterLockSlim.TryEnterUpgradeableReadLock方法的典型用法代码示例。如果您正苦于以下问题:C# ReaderWriterLockSlim.TryEnterUpgradeableReadLock方法的具体用法?C# ReaderWriterLockSlim.TryEnterUpgradeableReadLock怎么用?C# ReaderWriterLockSlim.TryEnterUpgradeableReadLock使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在System.Threading.ReaderWriterLockSlim的用法示例。


在下文中一共展示了ReaderWriterLockSlim.TryEnterUpgradeableReadLock方法的10个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: SlimUpgradeableReadLockHolder

        public SlimUpgradeableReadLockHolder(ReaderWriterLockSlim locker, bool waitForLock, bool wasLockAlreadyHelf)
        {
            this.locker = locker;
            if (wasLockAlreadyHelf)
            {
                lockAcquired = true;
                wasLockAlreadyHeld = true;
                return;
            }

            if(waitForLock)
            {
                locker.EnterUpgradeableReadLock();
                lockAcquired = true;
                return;
            }

            lockAcquired = locker.TryEnterUpgradeableReadLock(0);
        }
开发者ID:brianmatic,项目名称:n2cms,代码行数:19,代码来源:SlimUpgradeableReadLockHolder.cs

示例2: Dispose

        public static void Dispose()
        {
            ReaderWriterLockSlim rwls;

            rwls = new ReaderWriterLockSlim();
            rwls.Dispose();
            Assert.Throws<ObjectDisposedException>(() => rwls.TryEnterReadLock(0));
            Assert.Throws<ObjectDisposedException>(() => rwls.TryEnterUpgradeableReadLock(0));
            Assert.Throws<ObjectDisposedException>(() => rwls.TryEnterWriteLock(0));
            rwls.Dispose();

            for (int i = 0; i < 3; i++)
            {
                rwls = new ReaderWriterLockSlim();
                switch (i)
                {
                    case 0: rwls.EnterReadLock(); break;
                    case 1: rwls.EnterUpgradeableReadLock(); break;
                    case 2: rwls.EnterWriteLock(); break;
                }
                Assert.Throws<SynchronizationLockException>(() => rwls.Dispose());
            }
        }
开发者ID:ESgarbi,项目名称:corefx,代码行数:23,代码来源:ReaderWriterLockSlimTests.cs

示例3: RecursiveUpgradeableReadLockTest

		public void RecursiveUpgradeableReadLockTest ()
		{
			var v = new ReaderWriterLockSlim (LockRecursionPolicy.SupportsRecursion);

			Assert.IsTrue (v.TryEnterUpgradeableReadLock (100), "#1");
			Assert.IsTrue (v.TryEnterUpgradeableReadLock (100), "#2");
			Assert.IsTrue (v.TryEnterUpgradeableReadLock (100), "#3");

			Assert.AreEqual (3, v.RecursiveUpgradeCount);
		}
开发者ID:cthrax,项目名称:mono,代码行数:10,代码来源:ReaderWriterLockSlimTest.cs

示例4: TryEnterUpgradeableReadLock_OutOfRange

		public void TryEnterUpgradeableReadLock_OutOfRange ()
		{
			var v = new ReaderWriterLockSlim ();
			try {
				v.TryEnterUpgradeableReadLock (-2);
				Assert.Fail ("1");
			} catch (ArgumentOutOfRangeException) {
			}

			try {
				v.TryEnterUpgradeableReadLock (TimeSpan.MaxValue);
				Assert.Fail ("2");
			} catch (ArgumentOutOfRangeException) {
			}

			try {
				v.TryEnterUpgradeableReadLock (TimeSpan.MinValue);
				Assert.Fail ("3");
			} catch (ArgumentOutOfRangeException) {
			}
		}
开发者ID:cthrax,项目名称:mono,代码行数:21,代码来源:ReaderWriterLockSlimTest.cs

示例5: EnterExit

        public static void EnterExit()
        {
            using (ReaderWriterLockSlim rwls = new ReaderWriterLockSlim())
            {
                Assert.False(rwls.IsReadLockHeld);
                rwls.EnterReadLock();
                Assert.True(rwls.IsReadLockHeld);
                rwls.ExitReadLock();
                Assert.False(rwls.IsReadLockHeld);

                Assert.False(rwls.IsUpgradeableReadLockHeld);
                rwls.EnterUpgradeableReadLock();
                Assert.True(rwls.IsUpgradeableReadLockHeld);
                rwls.ExitUpgradeableReadLock();
                Assert.False(rwls.IsUpgradeableReadLockHeld);

                Assert.False(rwls.IsWriteLockHeld);
                rwls.EnterWriteLock();
                Assert.True(rwls.IsWriteLockHeld);
                rwls.ExitWriteLock();
                Assert.False(rwls.IsWriteLockHeld);

                Assert.False(rwls.IsUpgradeableReadLockHeld);
                rwls.EnterUpgradeableReadLock();
                Assert.False(rwls.IsWriteLockHeld);
                Assert.True(rwls.IsUpgradeableReadLockHeld);
                rwls.EnterWriteLock();
                Assert.True(rwls.IsWriteLockHeld);
                rwls.ExitWriteLock();
                Assert.False(rwls.IsWriteLockHeld);
                Assert.True(rwls.IsUpgradeableReadLockHeld);
                rwls.ExitUpgradeableReadLock();
                Assert.False(rwls.IsUpgradeableReadLockHeld);

                Assert.True(rwls.TryEnterReadLock(0));
                rwls.ExitReadLock();

                Assert.True(rwls.TryEnterReadLock(Timeout.InfiniteTimeSpan));
                rwls.ExitReadLock();

                Assert.True(rwls.TryEnterUpgradeableReadLock(0));
                rwls.ExitUpgradeableReadLock();

                Assert.True(rwls.TryEnterUpgradeableReadLock(Timeout.InfiniteTimeSpan));
                rwls.ExitUpgradeableReadLock();

                Assert.True(rwls.TryEnterWriteLock(0));
                rwls.ExitWriteLock();

                Assert.True(rwls.TryEnterWriteLock(Timeout.InfiniteTimeSpan));
                rwls.ExitWriteLock();
            }
        }
开发者ID:ESgarbi,项目名称:corefx,代码行数:53,代码来源:ReaderWriterLockSlimTests.cs

示例6: WriterToUpgradeableReaderChain

 public static void WriterToUpgradeableReaderChain()
 {
     using (AutoResetEvent are = new AutoResetEvent(false))
     using (ReaderWriterLockSlim rwls = new ReaderWriterLockSlim())
     {
         rwls.EnterWriteLock();
         Task t = Task.Factory.StartNew(() =>
         {
             Assert.False(rwls.TryEnterUpgradeableReadLock(TimeSpan.FromMilliseconds(10)));
             Task.Run(() => are.Set()); // ideally this won't fire until we've called EnterReadLock, but it's a benign race in that the test will succeed either way
             rwls.EnterUpgradeableReadLock();
             rwls.ExitUpgradeableReadLock();
         }, CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default);
         are.WaitOne();
         rwls.ExitWriteLock();
         t.GetAwaiter().GetResult();
     }
 }
开发者ID:ESgarbi,项目名称:corefx,代码行数:18,代码来源:ReaderWriterLockSlimTests.cs

示例7: InvalidTimeouts

        public static void InvalidTimeouts()
        {
            using (ReaderWriterLockSlim rwls = new ReaderWriterLockSlim())
            {
                Assert.Throws<ArgumentOutOfRangeException>(() => rwls.TryEnterReadLock(-2));
                Assert.Throws<ArgumentOutOfRangeException>(() => rwls.TryEnterUpgradeableReadLock(-3));
                Assert.Throws<ArgumentOutOfRangeException>(() => rwls.TryEnterWriteLock(-4));

                Assert.Throws<ArgumentOutOfRangeException>(() => rwls.TryEnterReadLock(TimeSpan.MaxValue));
                Assert.Throws<ArgumentOutOfRangeException>(() => rwls.TryEnterUpgradeableReadLock(TimeSpan.MinValue));
                Assert.Throws<ArgumentOutOfRangeException>(() => rwls.TryEnterWriteLock(TimeSpan.FromMilliseconds(-2)));
            }
        }
开发者ID:ESgarbi,项目名称:corefx,代码行数:13,代码来源:ReaderWriterLockSlimTests.cs

示例8: QuickTryEnterUpgradeableReadLock

 /// <summary>
 /// 
 /// </summary>
 /// <param name="readerWriterLockSlim"></param>
 /// <returns></returns>
 public static bool QuickTryEnterUpgradeableReadLock( ReaderWriterLockSlim readerWriterLockSlim )
 {
     return readerWriterLockSlim.TryEnterUpgradeableReadLock( s_TimeSpan );
 }
开发者ID:andyhebear,项目名称:HappyQ-WowServer,代码行数:9,代码来源:ReaderWriterLockSlimEx.cs

示例9: UpgradeableReadLock

 /// <summary>
 /// Acquires an upgradeable read lock on a lock object. If the lock object already
 /// holds a read lock, no new lock is acquired and no lock will be released.
 /// </summary>
 /// <param name="rwlock">Lock object to work with. If this is null, no lock will be acquired.</param>
 public UpgradeableReadLock(ReaderWriterLockSlim rwlock)
 {
     this.rwlock = rwlock;
     if (rwlock == null)
         wasLocked = true;
     else
         wasLocked = rwlock.IsUpgradeableReadLockHeld || rwlock.IsWriteLockHeld;
     if (!wasLocked && !rwlock.TryEnterUpgradeableReadLock((ReadLockTimeout + WriteLockTimeout) / 2))
     {
         throw new InvalidOperationException("The upgradeable reader lock could not be acquired.");
     }
 }
开发者ID:modulexcite,项目名称:FieldLog,代码行数:17,代码来源:Tx.cs

示例10: GetReadLock

 /// <summary>
 /// The get read lock.
 /// </summary>
 /// <param name="locks"> The locks. </param>
 public static void GetReadLock(ReaderWriterLockSlim locks)
 {
     bool lockAcquired = false;
     while (!lockAcquired)
     {
         lockAcquired = locks.TryEnterUpgradeableReadLock(1);
     }
 }
开发者ID:angle163,项目名称:Practice,代码行数:12,代码来源:Locks.cs


注:本文中的System.Threading.ReaderWriterLockSlim.TryEnterUpgradeableReadLock方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。