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  • 并发异步处理队列 .NET 4.5+

    
    namespace Test
    {
        using System;
        using System.Threading;
        using System.Threading.Tasks;
        using Microshaoft;
        class Program
        {
            static void Main()
            {
                GCNotifier.RegisterForFullGCNotification
                            (
                                99
                                , 99
                                , 10
                                , (x) =>
                                {
                                    //if (x != GCNotificationStatus.Timeout)
                                    {
                                        Console.WriteLine("FullGCApproach {0}", x);
                                    }
                                }
                                , (x) =>
                                {
                                    //if (x != GCNotificationStatus.Timeout)
                                    {
                                        Console.WriteLine("FullGCComplete {0}", x);
                                    }
                                }
                            );
                var q = new ConcurrentAsyncQueue<int>();
                q.AttachPerformanceCounters
                                    (
                                        "new"
                                        , "Microshaoft ConcurrentAsyncQueue Performance Counters"
                                        , new QueuePerformanceCountersContainer()
                                     );
                Random random = new Random();
                q.OnDequeue += new ConcurrentAsyncQueue<int>
                                        .QueueEventHandler
                                            (
                                                (x) =>
                                                {
                                                    int sleep = random.Next(0, 9) * 50;
                                                    //Console.WriteLine(sleep);
                                                    //Thread.Sleep(sleep);
                                                    if (sleep > 400)
                                                    {
                                                        Console.WriteLine(x);
                                                    }
                                                }
                                            );
                q.OnException += new ConcurrentAsyncQueue<int>
                                        .ExceptionEventHandler
                                            (
                                                (x) =>
                                                {
                                                    Console.WriteLine(x.ToString());
                                                }
                                            );
                Console.WriteLine("begin ...");
                //q.StartAdd(10);
                string r = string.Empty;
                while ((r = Console.ReadLine()) != "q")
                {
                    int i;
                    if (int.TryParse(r, out i))
                    {
                        Console.WriteLine("Parallel Enqueue {0} begin ...", i);
                        new Thread
                                (
                                    new ParameterizedThreadStart
                                            (
                                                (x) =>
                                                {
                                                    Parallel
                                                        .For
                                                            (
                                                                0
                                                                , i
                                                                , (xx) =>
                                                                    {
                                                                        q.Enqueue(xx);
                                                                    }
                                                            );
                                                    Console.WriteLine("Parallel Enqueue {0} end ...", i);
                                                }
                                            )
                                ).Start();
                    }
                    else if (r.ToLower() == "stop")
                    {
                        q.StartStop(10);
                    }
                    else if (r.ToLower() == "add")
                    {
                        q.StartAdd(20);
                    }
                    else
                    {
                        Console.WriteLine("please input Number!");
                    }
                }
            }
        }
    }
    namespace Microshaoft
    {
        using System;
        using System.Collections.Concurrent;
        using System.Diagnostics;
        using System.Threading;
        public class ConcurrentAsyncQueue<T>
        {
            public delegate void QueueEventHandler(T item);
            public event QueueEventHandler OnDequeue;
            public delegate void QueueLogEventHandler(string logMessage);
            public QueueLogEventHandler
                                    OnQueueLog
                                    , OnDequeueThreadStart
                                    , OnDequeueThreadEnd;
            public delegate void ExceptionEventHandler(Exception exception);
            public event ExceptionEventHandler OnException;
            private ConcurrentQueue<Tuple<Stopwatch, T>> _queue =
                                        new ConcurrentQueue<Tuple<Stopwatch, T>>();
            private ConcurrentQueue<Action> _callbackProcessBreaksActions;
            private long _concurrentDequeueThreadsCount = 0; //Microshaoft 用于控制并发线程数
            private ConcurrentQueue<ThreadProcessor> _dequeueThreadsProcessorsPool;
            private int _dequeueIdleSleepSeconds = 10;
            public QueuePerformanceCountersContainer PerformanceCounters
            {
                get;
                private set;
            }
            public int DequeueIdleSleepSeconds
            {
                set
                {
                    _dequeueIdleSleepSeconds = value;
                }
                get
                {
                    return _dequeueIdleSleepSeconds;
                }
            }
            private bool _isAttachedPerformanceCounters = false;
            private class ThreadProcessor
            {
                public bool Break
                {
                    set;
                    get;
                }
                public EventWaitHandle Wait
                {
                    private set;
                    get;
                }
                public ConcurrentAsyncQueue<T> Sender
                {
                    private set;
                    get;
                }
                public void StopOne()
                {
                    Break = true;
                }
                public ThreadProcessor
                            (
                                ConcurrentAsyncQueue<T> queue
                                , EventWaitHandle wait
                            )
                {
                    Wait = wait;
                    Sender = queue;
                }
                public void ThreadProcess()
                {
                    Interlocked.Increment(ref Sender._concurrentDequeueThreadsCount);
                    bool counterEnabled = Sender._isAttachedPerformanceCounters;
                    if (counterEnabled)
                    {
                        Sender
                            .PerformanceCounters
                                .DequeueThreadStartPerformanceCounter
                                    .ChangeCounterValueWithTryCatchExceptionFinally<long>
                                        (
                                            counterEnabled
                                            , (x) =>
                                            {
                                                return x.Increment();
                                            }
                                        );
                        Sender
                            .PerformanceCounters
                                .DequeueThreadsCountPerformanceCounter
                                    .Increment();
                    }
                    long r = 0;
                    try
                    {
                        if (Sender.OnDequeueThreadStart != null)
                        {
                            r = Interlocked.Read(ref Sender._concurrentDequeueThreadsCount);
                            Sender.OnDequeueThreadStart
                                        (
                                            string
                                                .Format
                                                    (
                                                        "{0} Threads Count {1},Queue Count {2},Current Thread: {3} at {4}"
                                                        , "Threads ++ !"
                                                        , r
                                                        , Sender._queue.Count
                                                        , Thread.CurrentThread.Name
                                                        , DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fffff")
                                                    )
                                        );
                        }
                        while (true)
                        {
                            #region while true loop
                            if (Break)
                            {
                                break;
                            }
                            while (!Sender._queue.IsEmpty)
                            {
                                #region while queue.IsEmpty loop
                                if (Break)
                                {
                                    break;
                                }
                                Tuple<Stopwatch, T> item = null;
                                if (Sender._queue.TryDequeue(out item))
                                {
                                    if (counterEnabled)
                                    {
                                        Sender.PerformanceCounters.DequeuePerformanceCounter.Increment();
                                        Sender.PerformanceCounters.QueueLengthPerformanceCounter.Decrement();
                                    }
                                    if (Sender.OnDequeue != null)
                                    {
                                        if (counterEnabled)
                                        {
                                            var beginTimeStopwatch = item.Item1;
                                            if
                                                (
                                                    beginTimeStopwatch != null
                                                )
                                            {
                                                beginTimeStopwatch.Stop();
                                                long elapsedTicks = beginTimeStopwatch.ElapsedTicks;
                                                Sender
                                                    .PerformanceCounters
                                                        .QueuedWaitAverageTimerPerformanceCounter
                                                            .IncrementBy(elapsedTicks);
                                                Sender
                                                    .PerformanceCounters
                                                        .QueuedWaitAverageBasePerformanceCounter
                                                            .Increment();
                                            }
                                        }
                                        var element = item.Item2;
                                        item = null;
                                        Sender
                                            .PerformanceCounters
                                                .DequeueProcessedAverageTimerPerformanceCounter
                                                    .ChangeAverageTimerCounterValueWithTryCatchExceptionFinally
                                                        (
                                                            counterEnabled
                                                            , Sender.PerformanceCounters.DequeueProcessedAverageBasePerformanceCounter
                                                            , () =>
                                                            {
                                                                Sender.OnDequeue(element);
                                                            }
                                                        );
                                    }
                                    if (Sender._isAttachedPerformanceCounters)
                                    {
                                        Sender
                                            .PerformanceCounters
                                                .DequeueProcessedPerformanceCounter
                                                    .Increment();
                                        Sender
                                            .PerformanceCounters
                                                .DequeueProcessedRateOfCountsPerSecondPerformanceCounter
                                                    .Increment();
                                    }
                                }
                                #endregion while queue.IsEmpty loop
                            }
                            #region wait
                            Sender._dequeueThreadsProcessorsPool.Enqueue(this);
                            if (Break)
                            {
                            }
                            if (!Wait.WaitOne(Sender.DequeueIdleSleepSeconds * 1000))
                            {
                            }
                            #endregion wait
                            #endregion while true loop
                        }
                    }
                    catch (Exception e)
                    {
                        if (Sender.OnException != null)
                        {
                            Sender.OnException(e);
                        }
                    }
                    finally
                    {
                        r = Interlocked.Decrement(ref Sender._concurrentDequeueThreadsCount);
                        if (r < 0)
                        {
                            Interlocked.Exchange(ref Sender._concurrentDequeueThreadsCount, 0);
                            if (Sender._isAttachedPerformanceCounters)
                            {
                                if
                                    (
                                        Sender
                                            .PerformanceCounters
                                                .DequeueThreadsCountPerformanceCounter
                                                    .RawValue < 0
                                    )
                                {
                                    Sender
                                        .PerformanceCounters
                                            .DequeueThreadsCountPerformanceCounter
                                                .RawValue
                                                    = Sender._concurrentDequeueThreadsCount;
                                }
                            }
                        }
                        if (Sender.OnDequeueThreadEnd != null)
                        {
                            Sender.OnDequeueThreadEnd
                                        (
                                            string
                                                .Format
                                                    (
                                                        "{0} Threads Count {1},Queue Count {2},Current Thread: {3} at {4}"
                                                        , "Threads--"
                                                        , r
                                                        , Sender._queue.Count
                                                        , Thread.CurrentThread.Name
                                                        , DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fffff")
                                                    )
                                        );
                        }
                        if (Sender._isAttachedPerformanceCounters)
                        {
                            Sender
                                .PerformanceCounters
                                    .DequeueThreadEndPerformanceCounter
                                        .Increment();
                            Sender
                                .PerformanceCounters
                                    .DequeueThreadsCountPerformanceCounter
                                        .Decrement();
                        }
                        if (!Break)
                        {
                            Sender.StartAdd(1);
                        }
                        Break = false;
                    }
                }
            }
            public void AttachPerformanceCounters
                                (
                                    string instanceNamePrefix
                                    , string categoryName
                                    , QueuePerformanceCountersContainer performanceCounters
                                )
            {
                var process = Process.GetCurrentProcess();
                var processName = process.ProcessName;
                var instanceName = string
                                    .Format
                                        (
                                            "{0}-{1}"
                                            , instanceNamePrefix
                                            , processName
                                        );
                PerformanceCounters = performanceCounters;
                PerformanceCounters
                    .AttachPerformanceCountersToProperties(instanceName, categoryName);
                _isAttachedPerformanceCounters = true;
            }
            public int Count
            {
                get
                {
                    return _queue.Count;
                }
            }
            public long ConcurrentThreadsCount
            {
                get
                {
                    return _concurrentDequeueThreadsCount;
                }
            }
            private void Stop(int count)
            {
                Action action;
                for (var i = 0; i < count; i++)
                {
                    if (_callbackProcessBreaksActions.TryDequeue(out action))
                    {
                        action();
                        action = null;
                    }
                }
            }
            public void StartStop(int count)
            {
                new Thread
                        (
                            new ThreadStart
                                    (
                                        () =>
                                        {
                                            Stop(count);
                                        }
                                    )
                        ).Start();
            }
            public void StartAdd(int count)
            {
                new Thread
                        (
                            new ThreadStart
                                    (
                                        () =>
                                        {
                                            Add(count);
                                        }
                                    )
                        ).Start();
            }
            private void Add(int count)
            {
                for (int i = 0; i < count; i++)
                {
                    Interlocked.Increment(ref _concurrentDequeueThreadsCount);
                    if (_dequeueThreadsProcessorsPool == null)
                    {
                        _dequeueThreadsProcessorsPool = new ConcurrentQueue<ThreadProcessor>();
                    }
                    var processor = new ThreadProcessor
                                                    (
                                                        this
                                                        , new AutoResetEvent(false)
                                                    );
                    var thread = new Thread
                                        (
                                            new ThreadStart
                                                        (
                                                            processor.ThreadProcess
                                                        )
                                        );
                    if (_callbackProcessBreaksActions == null)
                    {
                        _callbackProcessBreaksActions = new ConcurrentQueue<Action>();
                    }
                    var callbackProcessBreakAction = new Action
                                                            (
                                                                processor.StopOne
                                                            );
                    _callbackProcessBreaksActions.Enqueue(callbackProcessBreakAction);
                    _dequeueThreadsProcessorsPool.Enqueue(processor);
                    thread.Start();
                }
            }
            public void Enqueue(T item)
            {
                try
                {
                    Stopwatch stopwatch = null;
                    if (_isAttachedPerformanceCounters)
                    {
                        stopwatch = Stopwatch.StartNew();
                    }
                    var element = Tuple.Create<Stopwatch, T>(stopwatch, item);
                    _queue.Enqueue(element);
                    if (_isAttachedPerformanceCounters)
                    {
                        PerformanceCounters.EnqueuePerformanceCounter.Increment();
                        PerformanceCounters.EnqueueRateOfCountsPerSecondPerformanceCounter.Increment();
                        PerformanceCounters.QueueLengthPerformanceCounter.Increment();
                    }
                    if
                        (
                            _dequeueThreadsProcessorsPool != null
                            && !_dequeueThreadsProcessorsPool.IsEmpty
                        )
                    {
                        ThreadProcessor processor;
                        if (_dequeueThreadsProcessorsPool.TryDequeue(out processor))
                        {
                            processor.Wait.Set();
                            processor = null;
                            //Console.WriteLine("processor = null;");
                        }
                    }
                }
                catch (Exception e)
                {
                    if (OnException != null)
                    {
                        OnException(e);
                    }
                }
            }
        }
    }
    namespace Microshaoft
    {
        using System;
        using System.Diagnostics;
        using System.Linq;
        using System.Collections.Concurrent;
        public class QueuePerformanceCountersContainer
        {
            #region PerformanceCounters
            private PerformanceCounter _enqueuePerformanceCounter;
            [PerformanceCounterDefinitionAttribute(CounterType = PerformanceCounterType.NumberOfItems64)]
            public PerformanceCounter EnqueuePerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _enqueuePerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _enqueuePerformanceCounter;
                }
            }
            private PerformanceCounter _enqueueRateOfCountsPerSecondPerformanceCounter;
            [
                PerformanceCounterDefinitionAttribute
                    (
                        CounterType = PerformanceCounterType.RateOfCountsPerSecond64
                    )
            ]
            public PerformanceCounter EnqueueRateOfCountsPerSecondPerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper.TryEnterWriterLockSlimWrite<PerformanceCounter>(ref _enqueueRateOfCountsPerSecondPerformanceCounter, value, 2);
                }
                get
                {
                    return _enqueueRateOfCountsPerSecondPerformanceCounter;
                }
            }
            private PerformanceCounter _dequeuePerformanceCounter;
            [PerformanceCounterDefinitionAttribute(CounterType = PerformanceCounterType.NumberOfItems64)]
            public PerformanceCounter DequeuePerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _dequeuePerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _dequeuePerformanceCounter;
                }
            }
            private PerformanceCounter _dequeueProcessedRateOfCountsPerSecondPerformanceCounter;
            [
                PerformanceCounterDefinitionAttribute
                    (
                        CounterType = PerformanceCounterType.RateOfCountsPerSecond64
                    )
            ]
            public PerformanceCounter DequeueProcessedRateOfCountsPerSecondPerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _dequeueProcessedRateOfCountsPerSecondPerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _dequeueProcessedRateOfCountsPerSecondPerformanceCounter;
                }
            }
            private PerformanceCounter _dequeueProcessedPerformanceCounter;
            [
                PerformanceCounterDefinitionAttribute
                    (
                        CounterType = PerformanceCounterType.NumberOfItems64
                    )
            ]
            public PerformanceCounter DequeueProcessedPerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _dequeueProcessedPerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _dequeueProcessedPerformanceCounter;
                }
            }
            private PerformanceCounter _dequeueProcessedAverageTimerPerformanceCounter;
            [
                PerformanceCounterDefinitionAttribute
                    (
                        CounterType = PerformanceCounterType.AverageTimer32
                    )
            ]
            public PerformanceCounter DequeueProcessedAverageTimerPerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _dequeueProcessedAverageTimerPerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _dequeueProcessedAverageTimerPerformanceCounter;
                }
            }
            private PerformanceCounter _dequeueProcessedAverageBasePerformanceCounter;
            [
                PerformanceCounterDefinitionAttribute
                    (
                        CounterType = PerformanceCounterType.AverageBase
                    )
            ]
            public PerformanceCounter DequeueProcessedAverageBasePerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _dequeueProcessedAverageBasePerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _dequeueProcessedAverageBasePerformanceCounter;
                }
            }
            private PerformanceCounter _queuedWaitAverageTimerPerformanceCounter;
            [PerformanceCounterDefinitionAttribute(CounterType = PerformanceCounterType.AverageTimer32)]
            public PerformanceCounter QueuedWaitAverageTimerPerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _queuedWaitAverageTimerPerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _queuedWaitAverageTimerPerformanceCounter;
                }
            }
            private PerformanceCounter _queuedWaitAverageBasePerformanceCounter;
            [PerformanceCounterDefinitionAttribute(CounterType = PerformanceCounterType.AverageBase)]
            public PerformanceCounter QueuedWaitAverageBasePerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _queuedWaitAverageBasePerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _queuedWaitAverageBasePerformanceCounter;
                }
            }
            private PerformanceCounter _queueLengthPerformanceCounter;
            [PerformanceCounterDefinitionAttribute(CounterType = PerformanceCounterType.NumberOfItems64)]
            public PerformanceCounter QueueLengthPerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _queueLengthPerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _queueLengthPerformanceCounter;
                }
            }
            private PerformanceCounter _dequeueThreadStartPerformanceCounter;
            [PerformanceCounterDefinitionAttribute(CounterType = PerformanceCounterType.NumberOfItems64)]
            public PerformanceCounter DequeueThreadStartPerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _dequeueThreadStartPerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _dequeueThreadStartPerformanceCounter;
                }
            }
            private PerformanceCounter _dequeueThreadEndPerformanceCounter;
            [PerformanceCounterDefinitionAttribute(CounterType = PerformanceCounterType.NumberOfItems64)]
            public PerformanceCounter DequeueThreadEndPerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _dequeueThreadEndPerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _dequeueThreadEndPerformanceCounter;
                }
            }
            private PerformanceCounter _dequeueThreadsCountPerformanceCounter;
            [PerformanceCounterDefinitionAttribute(CounterType = PerformanceCounterType.NumberOfItems64)]
            public PerformanceCounter DequeueThreadsCountPerformanceCounter
            {
                private set
                {
                    ReaderWriterLockSlimHelper
                        .TryEnterWriterLockSlimWrite<PerformanceCounter>
                            (
                                ref _dequeueThreadsCountPerformanceCounter
                                , value
                                , 2
                            );
                }
                get
                {
                    return _dequeueThreadsCountPerformanceCounter;
                }
            }
            #endregion
            // indexer declaration
            public PerformanceCounter this[string name]
            {
                get
                {
                    throw new NotImplementedException();
                    //return null;
                }
            }
            private bool _isAttachedPerformanceCounters = false;
            public void AttachPerformanceCountersToProperties
                                (
                                    string instanceName
                                    , string categoryName
                                )
            {
                if (!_isAttachedPerformanceCounters)
                {
                    var type = this.GetType();
                    PerformanceCountersHelper
                        .AttachPerformanceCountersToProperties<QueuePerformanceCountersContainer>
                                (
                                    instanceName
                                    , categoryName
                                    , this
                                );
                }
                _isAttachedPerformanceCounters = true;
            }
        }
    }
    namespace Microshaoft
    {
        using System;
        using System.Diagnostics;
        public static class PerformanceCounterExtensionMethodsManager
        {
            public static T ChangeCounterValueWithTryCatchExceptionFinally<T>
                                    (
                                        this PerformanceCounter performanceCounter
                                        , bool enabled
                                        , Func<PerformanceCounter, T> onCounterChangeProcessFunc = null
                                        , Action<PerformanceCounter> onCounterChangedProcessAction = null
                                        , Func<PerformanceCounter, Exception, bool> onCaughtExceptionProcessFunc = null
                                        , Action<PerformanceCounter> onCaughtExceptionFinallyProcessAction = null
                                    )
            {
                T r = default(T);
                if (enabled)
                {
                    if (onCounterChangeProcessFunc != null)
                    {
                        var caughtException = false;
                        try
                        {
                            r = onCounterChangeProcessFunc(performanceCounter);
                        }
                        catch (Exception e)
                        {
                            caughtException = true;
                            var reThrow = true;
                            if (onCaughtExceptionProcessFunc != null)
                            {
                                reThrow = onCaughtExceptionProcessFunc(performanceCounter, e);
                            }
                            if (reThrow)
                            {
                                throw new Exception("ReThrow Exception On Caught Excepion", e);
                            }
                        }
                        finally
                        {
                            if (caughtException)
                            {
                                if (onCaughtExceptionFinallyProcessAction != null)
                                {
                                    onCaughtExceptionFinallyProcessAction(performanceCounter);
                                }
                            }
                        }
                    }
                }
                if (onCounterChangedProcessAction != null)
                {
                    var caughtException = false;
                    try
                    {
                        onCounterChangedProcessAction(performanceCounter);
                    }
                    catch (Exception e)
                    {
                        caughtException = true;
                        var reThrow = true;
                        if (onCaughtExceptionProcessFunc != null)
                        {
                            reThrow = onCaughtExceptionProcessFunc(performanceCounter, e);
                        }
                        if (reThrow)
                        {
                            throw new Exception("ReThrow Exception On Caught Excepion", e);
                        }
                    }
                    finally
                    {
                        if (caughtException)
                        {
                            if (onCaughtExceptionFinallyProcessAction != null)
                            {
                                onCaughtExceptionFinallyProcessAction(performanceCounter);
                            }
                        }
                    }
                }
                return r;
            }
            public static void ChangeAverageTimerCounterValueWithTryCatchExceptionFinally
                                    (
                                        this PerformanceCounter performanceCounter
                                        , bool enabled
                                        , PerformanceCounter basePerformanceCounter
                                        , Action onCountPerformanceInnerProcessAction = null
                                        , Func<PerformanceCounter, Exception, bool> onCaughtExceptionProcessFunc = null
                                        , Action<PerformanceCounter, PerformanceCounter> onCaughtExceptionFinallyProcessAction = null
                                    )
            {
                if (enabled)
                {
                    var stopwatch = Stopwatch.StartNew();
                    if (onCountPerformanceInnerProcessAction != null)
                    {
                        var caughtException = false;
                        try
                        {
                            onCountPerformanceInnerProcessAction();
                        }
                        catch (Exception e)
                        {
                            caughtException = true;
                            var reThrow = true;
                            if (onCaughtExceptionProcessFunc != null)
                            {
                                reThrow = onCaughtExceptionProcessFunc(performanceCounter, e);
                            }
                            if (reThrow)
                            {
                                throw new Exception("ReThrow Exception On Caught Excepion", e);
                            }
                        }
                        finally
                        {
                            stopwatch.Stop();
                            performanceCounter.IncrementBy(stopwatch.ElapsedTicks);
                            stopwatch = null;
                            basePerformanceCounter.Increment();
                            if (caughtException)
                            {
                                if (onCaughtExceptionFinallyProcessAction != null)
                                {
                                    onCaughtExceptionFinallyProcessAction
                                        (
                                            performanceCounter
                                            , basePerformanceCounter
                                        );
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    //=======================================================================================================
    //=======================================================================================================
    namespace Microshaoft
    {
        using System;
        using System.Diagnostics;
        [FlagsAttribute]
        public enum MultiPerformanceCountersTypeFlags : ushort
        {
            None = 0,
            ProcessCounter = 1,
            ProcessingCounter = 2,
            ProcessedCounter = 4,
            ProcessedAverageTimerCounter = 8,
            ProcessedRateOfCountsPerSecondCounter = 16
        };
        [AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = false)]
        public class PerformanceCounterDefinitionAttribute : Attribute
        {
            public PerformanceCounterType CounterType;
            public string CounterName;
        }
    }
    namespace Microshaoft
    {
        using System.Diagnostics;
        using System.Linq;
        public static class PerformanceCountersHelper
        {
            public static void AttachPerformanceCountersToProperties<T>
                                        (
                                            string performanceCounterInstanceName
                                            , string category
                                            , T target //= default(T)
                                        )
            {
                var type = typeof(T);
                var propertiesList = type.GetProperties().ToList();
                propertiesList = propertiesList
                                    .Where
                                        (
                                            (pi) =>
                                            {
                                                var parameters = pi.GetIndexParameters();
                                                return
                                                    (
                                                        pi.PropertyType == typeof(PerformanceCounter)
                                                        && (parameters == null ? 0 : parameters.Length) <= 0
                                                    );
                                            }
                                        ).ToList();
                if (PerformanceCounterCategory.Exists(category))
                {
                    propertiesList
                        .ForEach
                            (
                                (pi) =>
                                {
                                    if (PerformanceCounterCategory.CounterExists(pi.Name, category))
                                    {
                                        if (PerformanceCounterCategory.InstanceExists(performanceCounterInstanceName, category))
                                        {
                                            //var pc = new PerformanceCounter(category, pi.Name, instanceName, false);
                                            //pc.InstanceName = instanceName;
                                            //pc.RemoveInstance();
                                        }
                                    }
                                }
                            );
                    //PerformanceCounterCategory.Delete(category);
                }
                if (!PerformanceCounterCategory.Exists(category))
                {
                    var ccdc = new CounterCreationDataCollection();
                    propertiesList
                        .ForEach
                            (
                                (pi) =>
                                {
                                    var propertyName = pi.Name;
                                    var performanceCounterType = PerformanceCounterType.NumberOfItems64;
                                    var performanceCounterName = propertyName;
                                    var attribute
                                            = pi
                                                .GetCustomAttributes(false)
                                                    .FirstOrDefault
                                                        (
                                                            (x) =>
                                                            {
                                                                return
                                                                    x as PerformanceCounterDefinitionAttribute
                                                                    != null;
                                                            }
                                                        ) as PerformanceCounterDefinitionAttribute;
                                    if (attribute != null)
                                    {
                                        var counterName = attribute.CounterName;
                                        if (!string.IsNullOrEmpty(counterName))
                                        {
                                            performanceCounterName = counterName;
                                        }
                                        var counterType = attribute.CounterType;
                                        //if (counterType != null)
                                        {
                                            performanceCounterType = counterType;
                                        }
                                    }
                                    var ccd = PerformanceCountersHelper
                                                .GetCounterCreationData
                                                    (
                                                        performanceCounterName
                                                        , performanceCounterType
                                                    );
                                    ccdc.Add(ccd);
                                }
                            );
                    PerformanceCounterCategory
                        .Create
                            (
                                category
                                , string.Format("{0} Category Help.", category)
                                , PerformanceCounterCategoryType.MultiInstance
                                , ccdc
                            );
                }
                propertiesList.ForEach
                                (
                                    (pi) =>
                                    {
                                        var propertyName = pi.Name;
                                        var performanceCounterType = PerformanceCounterType.NumberOfItems64;
                                        var performanceCounterName = propertyName;
                                        var attribute
                                                = pi
                                                    .GetCustomAttributes(false)
                                                        .FirstOrDefault
                                                            (
                                                                (x) =>
                                                                {
                                                                    return
                                                                        x as PerformanceCounterDefinitionAttribute
                                                                        != null;
                                                                }
                                                            ) as PerformanceCounterDefinitionAttribute;
                                        if (attribute != null)
                                        {
                                            var counterName = attribute.CounterName;
                                            if (!string.IsNullOrEmpty(counterName))
                                            {
                                                performanceCounterName = counterName;
                                            }
                                            var counterType = attribute.CounterType;
                                            //if (counterType != null)
                                            {
                                                performanceCounterType = counterType;
                                            }
                                        }
                                        var pc = new PerformanceCounter()
                                        {
                                            CategoryName = category
                                            , CounterName = performanceCounterName
                                            , InstanceLifetime = PerformanceCounterInstanceLifetime.Process
                                            , InstanceName = performanceCounterInstanceName
                                            , ReadOnly = false
                                            , RawValue = 0
                                        };
                                        if (pi.GetGetMethod().IsStatic)
                                        {
                                            var setter = DynamicPropertyAccessor
                                                            .CreateSetStaticPropertyValueAction<PerformanceCounter>
                                                                (
                                                                    type
                                                                    , propertyName
                                                                );
                                            setter(pc);
                                        }
                                        else
                                        {
                                            if (target != null)
                                            {
                                                var setter = DynamicPropertyAccessor
                                                                .CreateSetPropertyValueAction<PerformanceCounter>
                                                                    (
                                                                        type
                                                                        , propertyName
                                                                    );
                                                setter(target, pc);
                                            }
                                        }
                                    }
                                );
            }
            public static CounterCreationData GetCounterCreationData
                        (
                            string counterName
                            , PerformanceCounterType performanceCounterType
                        )
            {
                return new CounterCreationData()
                {
                    CounterName = counterName
                    , CounterHelp = string.Format("{0} Help", counterName)
                    , CounterType = performanceCounterType
                };
            }
        }
    }
    //=======================================================================================================
    //=======================================================================================================
    namespace Microshaoft
    {
        using System;
        using System.Threading;
        public static class ReaderWriterLockSlimHelper
        {
            public static bool TryEnterWriterLockSlimWrite<T>
                                    (
                                        ref T target
                                        , T newTarget
                                        , int enterTimeOutSeconds
                                    )
                                        where T : class
            {
                bool r = false;
                var rwls = new ReaderWriterLockSlim();
                int timeOut = Timeout.Infinite;
                if (enterTimeOutSeconds >= 0)
                {
                    timeOut = enterTimeOutSeconds * 1000;
                }
                try
                {
                    r = (rwls.TryEnterWriteLock(timeOut));
                    if (r)
                    {
                        Interlocked.Exchange<T>(ref target, newTarget);
                        r = true;
                    }
                }
                finally
                {
                    if (r)
                    {
                        rwls.ExitWriteLock();
                    }
                }
                return r;
            }
            public static bool TryEnterWriterLockSlim
                                    (
                                        Action action
                                        , int enterTimeOutSeconds
                                    )
            {
                bool r = false;
                if (action != null)
                {
                    var rwls = new ReaderWriterLockSlim();
                    int timeOut = Timeout.Infinite;
                    if (enterTimeOutSeconds >= 0)
                    {
                        timeOut = enterTimeOutSeconds * 1000;
                    }
                    try
                    {
                        r = (rwls.TryEnterWriteLock(timeOut));
                        if (r)
                        {
                            action();
                            r = true;
                        }
                    }
                    finally
                    {
                        if (r)
                        {
                            rwls.ExitWriteLock();
                        }
                    }
                }
                return r;
            }
        }
    }
    namespace Microshaoft
    {
        using System;
        using System.Linq;
        using System.Linq.Expressions;
        using System.Reflection;
        public class DynamicPropertyAccessor
        {
            private static Assembly GetAssemblyByTypeName(string typeName)
            {
                return
                    AppDomain
                        .CurrentDomain
                            .GetAssemblies()
                                .First
                                    (
                                        (a) =>
                                        {
                                            return
                                                a
                                                    .GetTypes()
                                                        .Any
                                                            (
                                                                (t) =>
                                                                {
                                                                    return
                                                                        (
                                                                            t.FullName
                                                                            == typeName
                                                                        );
                                                                }
                                                            );
                                        }
                                    );
            }
            public static Func<object, object> CreateGetPropertyValueFunc
                            (
                                string typeName
                                , string propertyName
                                , bool isTypeFromAssembly = false
                            )
            {
                Type type;
                if (isTypeFromAssembly)
                {
                    var assembly = GetAssemblyByTypeName(typeName);
                    type = assembly.GetType(typeName);
                }
                else
                {
                    type = Type.GetType(typeName);
                }
                return CreateGetPropertyValueFunc(type, propertyName);
            }
            public static Func<object, object> CreateGetPropertyValueFunc
                            (
                                Type type
                                , string propertyName
                            )
            {
                var target = Expression.Parameter(typeof(object));
                var castTarget = Expression.Convert(target, type);
                var getPropertyValue = Expression.Property(castTarget, propertyName);
                var castPropertyValue = Expression.Convert(getPropertyValue, typeof(object));
                var lambda = Expression.Lambda<Func<object, object>>(castPropertyValue, target);
                return lambda.Compile();
            }
            public static Func<object, TProperty> CreateGetPropertyValueFunc<TProperty>
                            (
                                string typeName
                                , string propertyName
                                , bool isTypeFromAssembly = false
                            )
            {
                Type type;
                if (isTypeFromAssembly)
                {
                    var assembly = GetAssemblyByTypeName(typeName);
                    type = assembly.GetType(typeName);
                }
                else
                {
                    type = Type.GetType(typeName);
                }
                return CreateGetPropertyValueFunc<TProperty>(type, propertyName);
            }
            public static Func<object, TProperty> CreateGetPropertyValueFunc<TProperty>
                            (
                                Type type
                                , string propertyName
                            )
            {
                var target = Expression.Parameter(typeof(object));
                var castTarget = Expression.Convert(target, type);
                var getPropertyValue = Expression.Property(castTarget, propertyName);
                var lambda = Expression.Lambda<Func<object, TProperty>>(getPropertyValue, target);
                return lambda.Compile();
            }
            public static Func<TProperty> CreateGetStaticPropertyValueFunc<TProperty>
                            (
                                string typeName
                                , string propertyName
                                , bool isTypeFromAssembly = false
                            )
            {
                Type type;
                if (isTypeFromAssembly)
                {
                    var assembly = GetAssemblyByTypeName(typeName);
                    type = assembly.GetType(typeName);
                }
                else
                {
                    type = Type.GetType(typeName);
                }
                return CreateGetStaticPropertyValueFunc<TProperty>(type, propertyName);
            }
            public static Func<TProperty> CreateGetStaticPropertyValueFunc<TProperty>
                            (
                                Type type
                                , string propertyName
                            )
            {
                Func<TProperty> func = null;
                var property = type.GetProperty(propertyName, typeof(TProperty));
                if (property == null)
                {
                    property =
                                type
                                    .GetProperties()
                                        .ToList()
                                            .FirstOrDefault
                                                (
                                                    (x) =>
                                                    {
                                                        return
                                                            (
                                                                x.Name.ToLower()
                                                                == propertyName.ToLower()
                                                            );
                                                    }
                                                );
                }
                if (property != null)
                {
                    var getPropertyValue = Expression.Property(null, property);
                    var lambda = Expression.Lambda<Func<TProperty>>(getPropertyValue, null);
                    func = lambda.Compile();
                }
                return func;
            }
            public static Func<object> CreateGetStaticPropertyValueFunc
                            (
                                Type type
                                , string propertyName
                            )
            {
                Func<object> func = null;
                var property = type.GetProperty(propertyName);
                if (property == null)
                {
                    property =
                                type
                                    .GetProperties()
                                        .ToList()
                                            .FirstOrDefault
                                                (
                                                    (x) =>
                                                    {
                                                        return
                                                            (
                                                                x.Name.ToLower()
                                                                == propertyName.ToLower()
                                                            );
                                                    }
                                                );
                }
                if (property != null)
                {
                    var getPropertyValue = Expression.Property(null, property);
                    var castPropertyValue = Expression.Convert(getPropertyValue, typeof(object));
                    var lambda = Expression.Lambda<Func<object>>(castPropertyValue, null);
                    func = lambda.Compile();
                }
                return func;
            }
            public static Func<object> CreateGetStaticPropertyValueFunc
                            (
                                string typeName
                                , string propertyName
                                , bool isTypeFromAssembly = false
                            )
            {
                Type type;
                if (isTypeFromAssembly)
                {
                    var assembly = GetAssemblyByTypeName(typeName);
                    type = assembly.GetType(typeName);
                }
                else
                {
                    type = Type.GetType(typeName);
                }
                return CreateGetStaticPropertyValueFunc(type, propertyName);
            }
            public static Action<object, object> CreateSetPropertyValueAction
                            (
                                Type type
                                , string propertyName
                            )
            {
                Action<object, object> action = null;
                var property = type.GetProperty(propertyName);
                if (property == null)
                {
                    property =
                                type
                                    .GetProperties()
                                        .ToList()
                                            .FirstOrDefault
                                                (
                                                    (x) =>
                                                    {
                                                        return
                                                            (
                                                                x.Name.ToLower()
                                                                == propertyName.ToLower()
                                                            );
                                                    }
                                                );
                }
                if (property != null)
                {
                    var target = Expression.Parameter(typeof(object));
                    var propertyValue = Expression.Parameter(typeof(object));
                    var castTarget = Expression.Convert(target, type);
                    var castPropertyValue = Expression.Convert(propertyValue, property.PropertyType);
                    var getSetMethod = property.GetSetMethod();
                    if (getSetMethod == null)
                    {
                        getSetMethod = property.GetSetMethod(true);
                    }
                    var call = Expression.Call(castTarget, getSetMethod, castPropertyValue);
                    var lambda = Expression.Lambda<Action<object, object>>(call, target, propertyValue);
                    action = lambda.Compile();
                }
                return action;
            }
            public static Action<object, object> CreateSetPropertyValueAction
                            (
                                string typeName
                                , string propertyName
                                , bool isTypeFromAssembly = false
                            )
            {
                Type type;
                if (isTypeFromAssembly)
                {
                    var assembly = GetAssemblyByTypeName(typeName);
                    type = assembly.GetType(typeName);
                }
                else
                {
                    type = Type.GetType(typeName);
                }
                return CreateSetPropertyValueAction(type, propertyName);
            }
            public static Action<object, TProperty> CreateSetPropertyValueAction<TProperty>
                            (
                                Type type
                                , string propertyName
                            )
            {
                Action<object, TProperty> action = null;
                var property = type.GetProperty(propertyName);
                if (property == null)
                {
                    property =
                                type
                                    .GetProperties()
                                        .ToList()
                                            .FirstOrDefault
                                                (
                                                    (x) =>
                                                    {
                                                        return
                                                            (
                                                                x.Name.ToLower()
                                                                == propertyName.ToLower()
                                                            );
                                                    }
                                                );
                }
                if (property != null)
                {
                    var target = Expression.Parameter(typeof(object));
                    var propertyValue = Expression.Parameter(typeof(TProperty));
                    var castTarget = Expression.Convert(target, type);
                    var castPropertyValue = Expression.Convert(propertyValue, property.PropertyType);
                    var getSetMethod = property.GetSetMethod();
                    if (getSetMethod == null)
                    {
                        getSetMethod = property.GetSetMethod(true);
                    }
                    var call = Expression.Call(castTarget, getSetMethod, castPropertyValue);
                    var lambda = Expression.Lambda<Action<object, TProperty>>(call, target, propertyValue);
                    action = lambda.Compile();
                }
                return action; 
            }
            public static Action<object, TProperty> CreateSetPropertyValueAction<TProperty>
                            (
                                string typeName
                                , string propertyName
                                , bool isTypeFromAssembly = false
                            )
            {
                Type type;
                if (isTypeFromAssembly)
                {
                    var assembly = GetAssemblyByTypeName(typeName);
                    type = assembly.GetType(typeName);
                }
                else
                {
                    type = Type.GetType(typeName);
                }
                return CreateSetPropertyValueAction<TProperty>(type, propertyName);
            }
            public static Action<object> CreateSetStaticPropertyValueAction
                            (
                                Type type
                                , string propertyName
                            )
            {
                Action<object> action = null;
                var property = type.GetProperty(propertyName);
                if (property == null)
                {
                    property =
                                type
                                    .GetProperties()
                                        .ToList()
                                            .FirstOrDefault
                                                (
                                                    (x) =>
                                                    {
                                                        return
                                                            (
                                                                x.Name.ToLower()
                                                                == propertyName.ToLower()
                                                            );
                                                    }
                                                );
                }
                if (property != null)
                {
                    var propertyValue = Expression.Parameter(typeof(object));
                    var castPropertyValue = Expression.Convert(propertyValue, property.PropertyType);
                    var getSetMethod = property.GetSetMethod();
                    if (getSetMethod == null)
                    {
                        getSetMethod = property.GetSetMethod(true);
                    }
                    var call = Expression.Call(null, getSetMethod, castPropertyValue);
                    var lambda = Expression.Lambda<Action<object>>(call, propertyValue);
                    action = lambda.Compile();
                }
                return action;
            }
            public static Action<object> CreateSetStaticPropertyValueAction
                            (
                                string typeName
                                , string propertyName
                                , bool isTypeFromAssembly = false
                            )
            {
                Type type;
                if (isTypeFromAssembly)
                {
                    var assembly = GetAssemblyByTypeName(typeName);
                    type = assembly.GetType(typeName);
                }
                else
                {
                    type = Type.GetType(typeName);
                }
                return CreateSetStaticPropertyValueAction(type, propertyName);
            }
            public static Action<TProperty> CreateSetStaticPropertyValueAction<TProperty>
                            (
                                Type type
                                , string propertyName
                            )
            {
                Action<TProperty> action = null;
                var property = type.GetProperty(propertyName);
                if (property == null)
                {
                    property =
                                type
                                    .GetProperties()
                                        .ToList()
                                            .FirstOrDefault
                                                (
                                                    (x) =>
                                                    {
                                                        return
                                                            (
                                                                x.Name.ToLower()
                                                                == propertyName.ToLower()
                                                            );
                                                    }
                                                );
                }
                if (property != null)
                {
                    var propertyValue = Expression.Parameter(typeof(TProperty));
                    //var castPropertyValue = Expression.Convert(propertyValue, property.PropertyType);
                    var getSetMethod = property.GetSetMethod();
                    if (getSetMethod == null)
                    {
                        getSetMethod = property.GetSetMethod(true);
                    }
                    var call = Expression.Call(null, getSetMethod, propertyValue);
                    var lambda = Expression.Lambda<Action<TProperty>>(call, propertyValue);
                    action = lambda.Compile();
                }
                return action;
            }
            public static Action<TProperty> CreateSetStaticPropertyValueAction<TProperty>
                            (
                                string typeName
                                , string propertyName
                                , bool isTypeFromAssembly = false
                            )
            {
                Type type;
                if (isTypeFromAssembly)
                {
                    var assembly = GetAssemblyByTypeName(typeName);
                    type = assembly.GetType(typeName);
                }
                else
                {
                    type = Type.GetType(typeName);
                }
                return CreateSetStaticPropertyValueAction<TProperty>(type, propertyName);
            }
        }
    }
    namespace Microshaoft
    {
        using System;
        using System.Threading;
        public static class GCNotifier
        {
            public static void CancelForFullGCNotification()
            {
                GC.CancelFullGCNotification();
            }
            public static void RegisterForFullGCNotification
                                (
                                    int maxGenerationThreshold
                                    , int maxLargeObjectHeapThreshold
                                    , int waitOnceSecondsTimeout
                                    , Action<GCNotificationStatus> waitForFullGCApproachProcessAction
                                    , Action<GCNotificationStatus> waitForFullGCCompleteProcessAction
                                )
            {
                GC.RegisterForFullGCNotification(maxGenerationThreshold, maxLargeObjectHeapThreshold);
                new Thread
                    (
                        new ThreadStart
                            (
                                () =>
                                {
                                    while (true)
                                    {
                                        if (waitForFullGCApproachProcessAction != null)
                                        {
                                            var gcNotificationStatus
                                                    = GC.WaitForFullGCApproach(1000 * waitOnceSecondsTimeout);
                                            if (gcNotificationStatus != GCNotificationStatus.Timeout)
                                            {
                                                waitForFullGCApproachProcessAction(gcNotificationStatus);
                                            }
                                        }
                                        if (waitForFullGCApproachProcessAction != null)
                                        {
                                            var gcNotificationStatus
                                                    = GC.WaitForFullGCComplete(1000 * waitOnceSecondsTimeout);
                                            if (gcNotificationStatus != GCNotificationStatus.Timeout)
                                            {
                                                waitForFullGCCompleteProcessAction(gcNotificationStatus);
                                            }
                                        }
                                        Thread.Sleep(1000);
                                    }
                                }
                            )
                        ).Start();
            }
        }
    }
    
    
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  • 原文地址:https://www.cnblogs.com/Microshaoft/p/3150070.html
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