ConcurrentAsyncQueue 2014-09-07
#define NET45
namespace Test
{
using System;
using System.Threading;
using System.Threading.Tasks;
using Microshaoft;
class Program
{
static void Main()
{
GCNotifier.RegisterForFullGCNotification
(
, (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) =>
{
;
//sleep = 1000;
//Console.WriteLine(sleep);
Thread.Sleep(sleep);
)
{
Console.WriteLine(x);
}
}
);
q.OnCaughtException += new ConcurrentAsyncQueue<int>
.ExceptionEventHandler
(
(x, y) =>
{
Console.WriteLine(x.ToString());
return false;
}
);
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
(
, i
, (xx) =>
{
q.Enqueue(xx);
}
);
Console.WriteLine("Parallel Enqueue {0} end ...", i);
}
)
).Start();
}
else if (r.ToLower() == "stop")
{
);
}
else if (r.ToLower() == "add")
{
);
}
else
{
Console.WriteLine("please input Number!");
}
}
}
}
}
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);
}
}
);
}
}
)
).Start();
}
}
}
namespace Microshaoft
{
using System;
using System.Collections.Concurrent;
using System.Diagnostics;
using System.Threading;
internal static class QueuedObjectsPoolManager
{
);
}
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 bool ExceptionEventHandler(ConcurrentAsyncQueue<T> sender, Exception exception);
public event ExceptionEventHandler OnCaughtException;
private ConcurrentQueue<Tuple<Stopwatch, T>> _queue =
new ConcurrentQueue<Tuple<Stopwatch, T>>();
public ConcurrentQueue<Tuple<Stopwatch, T>> InternalQueue
{
get { return _queue; }
//set { _queue = value; }
}
private ConcurrentQueue<Action> _callbackProcessBreaksActions;
; //Microshaoft 用于控制并发线程数
private ConcurrentQueue<ThreadProcessor> _dequeueThreadsProcessorsPool;
;
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;
QueuePerformanceCountersContainer qpcc = Sender.PerformanceCounters;
var queue = Sender.InternalQueue;
var reThrowException = false;
PerformanceCounter[] incrementCountersBeforeCountPerformanceForThread = null;
PerformanceCounter[] decrementCountersAfterCountPerformanceForThread = null;
PerformanceCounter[] incrementCountersAfterCountPerformanceForThread = null;
if (counterEnabled && qpcc != null)
{
incrementCountersBeforeCountPerformanceForThread =
new PerformanceCounter[]
{
qpcc
.DequeueThreadStartPerformanceCounter
, qpcc
.DequeueThreadsCountPerformanceCounter
};
decrementCountersAfterCountPerformanceForThread =
new PerformanceCounter[]
{
qpcc.DequeueThreadsCountPerformanceCounter
};
incrementCountersAfterCountPerformanceForThread =
new PerformanceCounter[]
{
qpcc.DequeueThreadEndPerformanceCounter
};
}
PerformanceCountersHelper
.TryCountPerformance
(
counterEnabled
, reThrowException
, incrementCountersBeforeCountPerformanceForThread
, null
, null
, () =>
{
#region Try Process
if (Sender.OnDequeueThreadStart != null)
{
l = Interlocked.Read(ref Sender._concurrentDequeueThreadsCount);
Sender
.OnDequeueThreadStart
(
string
.Format
(
"{0} Threads Count {1},Queue Count {2},Current Thread: {3} at {4}"
, "Threads ++ !"
, l
, 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 (!queue.IsEmpty)
{
#region while queue.IsEmpty loop
if (Break)
{
break;
}
Tuple<Stopwatch, T> item = null;
if (queue.TryDequeue(out item))
{
Stopwatch stopwatchDequeue = QueuedObjectsPoolManager.StopwatchsPool.Get();
PerformanceCounter[] incrementCountersBeforeCountPerformanceForDequeue = null;
PerformanceCounter[] decrementCountersBeforeCountPerformanceForDequeue = null;
PerformanceCounter[] incrementCountersAfterCountPerformanceForDequeue = null;
Tuple
<
bool
, Stopwatch
, PerformanceCounter
, PerformanceCounter
>[] timerCounters = null;
if (counterEnabled && qpcc != null)
{
incrementCountersBeforeCountPerformanceForDequeue =
new PerformanceCounter[]
{
qpcc
.DequeuePerformanceCounter
};
decrementCountersBeforeCountPerformanceForDequeue =
new PerformanceCounter[]
{
qpcc
.QueueLengthPerformanceCounter
};
timerCounters = new Tuple
<
bool
, Stopwatch
, PerformanceCounter
, PerformanceCounter
>[]
{
Tuple.Create
<
bool //before 时是否需要启动
, Stopwatch
, PerformanceCounter
, PerformanceCounter //base
>
(
false
, item.Item1
, qpcc
.QueuedWaitAverageTimerPerformanceCounter
, qpcc
.QueuedWaitAverageBasePerformanceCounter
)
, Tuple.Create
<
bool
, Stopwatch
, PerformanceCounter
, PerformanceCounter
>
(
true
, stopwatchDequeue
, qpcc
.DequeueProcessedAverageTimerPerformanceCounter
, qpcc
.DequeueProcessedAverageBasePerformanceCounter
)
};
incrementCountersAfterCountPerformanceForDequeue =
new PerformanceCounter[]
{
qpcc
.DequeueProcessedPerformanceCounter
, qpcc
.DequeueProcessedRateOfCountsPerSecondPerformanceCounter
};
}
PerformanceCountersHelper
.TryCountPerformance
(
counterEnabled
, reThrowException
, incrementCountersBeforeCountPerformanceForDequeue
, decrementCountersBeforeCountPerformanceForDequeue
, timerCounters
, () => //try
{
if (Sender.OnDequeue != null)
{
var element = item.Item2;
item = null;
Sender.OnDequeue(element);
}
}
, (x) => //catch
{
reThrowException = false;
return reThrowException;
}
, null //finally
, null
, incrementCountersAfterCountPerformanceForDequeue
);
//池化
stopwatchDequeue.Reset();
QueuedObjectsPoolManager.StopwatchsPool.Put(stopwatchDequeue);
}
#endregion while queue.IsEmpty loop
}
#region wait
Sender
._dequeueThreadsProcessorsPool
.Enqueue(this);
if (Break)
{
}
))
{
}
#endregion wait
#endregion while true loop
}
#endregion
}
, (x) => //catch
{
#region Catch Process
if (Sender.OnCaughtException != null)
{
reThrowException = Sender.OnCaughtException(Sender, x);
}
return reThrowException;
#endregion
}
, (x, y) => //finally
{
#region Finally Process
l = Interlocked.Decrement(ref Sender._concurrentDequeueThreadsCount);
)
{
);
}
if (Sender.OnDequeueThreadEnd != null)
{
Sender
.OnDequeueThreadEnd
(
string.Format
(
"{0} Threads Count {1},Queue Count {2},Current Thread: {3} at {4}"
, "Threads--"
, l
, Sender.InternalQueue.Count
, Thread.CurrentThread.Name
, DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fffff")
)
);
}
if (!Break)
{
);
}
Break = false;
#endregion
}
, decrementCountersAfterCountPerformanceForThread
, incrementCountersAfterCountPerformanceForThread
);
}
}
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 DecreaseDequeueProcessThreads(int count)
{
Action action;
; i < count; i++)
{
if (_callbackProcessBreaksActions.TryDequeue(out action))
{
action();
action = null;
}
}
}
public void StartDecreaseDequeueProcessThreads(int count)
{
new Thread
(
new ThreadStart
(
() =>
{
DecreaseDequeueProcessThreads(count);
}
)
).Start();
}
public void StartIncreaseDequeueProcessThreads(int count)
{
new Thread
(
new ThreadStart
(
() =>
{
IncreaseDequeueProcessThreads(count);
}
)
).Start();
}
private void IncreaseDequeueProcessThreads(int count)
{
; 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 bool Enqueue(T item)
{
var r = false;
var reThrowException = false;
var enableCount = _isAttachedPerformanceCounters;
PerformanceCounter[] incrementCountersBeforeCountPerformance = null;
var qpcc = PerformanceCounters;
if (enableCount && qpcc != null)
{
incrementCountersBeforeCountPerformance =
new PerformanceCounter[]
{
qpcc
.EnqueuePerformanceCounter
, qpcc
.EnqueueRateOfCountsPerSecondPerformanceCounter
, qpcc
.QueueLengthPerformanceCounter
};
}
PerformanceCountersHelper
.TryCountPerformance
(
enableCount
, reThrowException
, incrementCountersBeforeCountPerformance
, null
, null
, () =>
{
Stopwatch stopwatch = null;
if (_isAttachedPerformanceCounters)
{
stopwatch = QueuedObjectsPoolManager.StopwatchsPool.Get();
stopwatch = Stopwatch.StartNew();
}
var element = Tuple.Create<Stopwatch, T>(stopwatch, item);
_queue.Enqueue(element);
r = true;
}
, (x) =>
{
if (OnCaughtException != null)
{
reThrowException = OnCaughtException(this, x);
}
return reThrowException;
}
, (x, y) =>
{
if
(
_dequeueThreadsProcessorsPool != null
&& !_dequeueThreadsProcessorsPool.IsEmpty
)
{
ThreadProcessor processor;
if (_dequeueThreadsProcessorsPool.TryDequeue(out processor))
{
processor.Wait.Set();
processor = null;
//Console.WriteLine("processor = null;");
}
}
}
);
return r;
}
}
}
namespace Microshaoft
{
using System;
using System.Diagnostics;
public class QueuePerformanceCountersContainer //: IPerformanceCountersContainer
{
#region PerformanceCounters
private PerformanceCounter _caughtExceptionsPerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.NumberOfItems64
, CounterName = "99.捕获异常次数(次)"
)
]
public PerformanceCounter CaughtExceptionsPerformanceCounter
{
private set
{
_caughtExceptionsPerformanceCounter = value;
}
get
{
return _caughtExceptionsPerformanceCounter;
}
}
private PerformanceCounter _enqueuePerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.NumberOfItems64
, CounterName = "01.入队列累计总数(笔)"
)
]
public PerformanceCounter EnqueuePerformanceCounter
{
private set
{
_enqueuePerformanceCounter = value;
}
get
{
return _enqueuePerformanceCounter;
}
}
private PerformanceCounter _enqueueRateOfCountsPerSecondPerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.RateOfCountsPerSecond64
, CounterName = "02.每秒入队列笔数(笔/秒)"
)
]
public PerformanceCounter EnqueueRateOfCountsPerSecondPerformanceCounter
{
private set
{
_enqueueRateOfCountsPerSecondPerformanceCounter = value;
}
get
{
return _enqueueRateOfCountsPerSecondPerformanceCounter;
}
}
private PerformanceCounter _queueLengthPerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.NumberOfItems64
, CounterName = "03.队列当前长度(笔)"
)
]
public PerformanceCounter QueueLengthPerformanceCounter
{
private set
{
_queueLengthPerformanceCounter = value;
}
get
{
return _queueLengthPerformanceCounter;
}
}
private PerformanceCounter _dequeuePerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.NumberOfItems64
, CounterName = "04.出队列累计总数(笔)"
)
]
public PerformanceCounter DequeuePerformanceCounter
{
private set
{
_dequeuePerformanceCounter = value;
}
get
{
return _dequeuePerformanceCounter;
}
}
private PerformanceCounter _dequeueProcessedRateOfCountsPerSecondPerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.RateOfCountsPerSecond64
, CounterName = "05.每秒出队列并完成处理笔数(笔/秒)"
)
]
public PerformanceCounter DequeueProcessedRateOfCountsPerSecondPerformanceCounter
{
private set
{
_dequeueProcessedRateOfCountsPerSecondPerformanceCounter = value;
}
get
{
return _dequeueProcessedRateOfCountsPerSecondPerformanceCounter;
}
}
private PerformanceCounter _dequeueProcessedPerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.NumberOfItems64
, CounterName = "06.已出队列并完成处理累计总笔数(笔)"
)
]
public PerformanceCounter DequeueProcessedPerformanceCounter
{
private set
{
_dequeueProcessedPerformanceCounter = value;
}
get
{
return _dequeueProcessedPerformanceCounter;
}
}
private PerformanceCounter _dequeueProcessedAverageTimerPerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.AverageTimer32
, CounterName = "07.每笔已出队列并完成处理平均耗时秒数(秒/笔)"
)
]
public PerformanceCounter DequeueProcessedAverageTimerPerformanceCounter
{
private set
{
_dequeueProcessedAverageTimerPerformanceCounter = value;
}
get
{
return _dequeueProcessedAverageTimerPerformanceCounter;
}
}
private PerformanceCounter _dequeueProcessedAverageBasePerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.AverageBase
)
]
public PerformanceCounter DequeueProcessedAverageBasePerformanceCounter
{
private set
{
_dequeueProcessedAverageBasePerformanceCounter = value;
}
get
{
return _dequeueProcessedAverageBasePerformanceCounter;
}
}
private PerformanceCounter _queuedWaitAverageTimerPerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.AverageTimer32
, CounterName = "08.每笔入出队列并完成处理平均耗时秒数(秒/笔)"
)
]
public PerformanceCounter QueuedWaitAverageTimerPerformanceCounter
{
private set
{
_queuedWaitAverageTimerPerformanceCounter = value;
}
get
{
return _queuedWaitAverageTimerPerformanceCounter;
}
}
private PerformanceCounter _queuedWaitAverageBasePerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.AverageBase
)
]
public PerformanceCounter QueuedWaitAverageBasePerformanceCounter
{
private set
{
_queuedWaitAverageBasePerformanceCounter = value;
}
get
{
return _queuedWaitAverageBasePerformanceCounter;
}
}
private PerformanceCounter _dequeueThreadStartPerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.NumberOfItems64
, CounterName = "09.新建出队列处理线程启动次数(次)"
)
]
public PerformanceCounter DequeueThreadStartPerformanceCounter
{
private set
{
_dequeueThreadStartPerformanceCounter = value;
}
get
{
return _dequeueThreadStartPerformanceCounter;
}
}
private PerformanceCounter _dequeueThreadsCountPerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.NumberOfItems64
, CounterName = "10.当前出队列并发处理线程数(个)"
)
]
public PerformanceCounter DequeueThreadsCountPerformanceCounter
{
private set
{
_dequeueThreadsCountPerformanceCounter = value;
}
get
{
return _dequeueThreadsCountPerformanceCounter;
}
}
private PerformanceCounter _dequeueThreadEndPerformanceCounter;
[
PerformanceCounterDefinitionAttribute
(
CounterType = PerformanceCounterType.NumberOfItems64
, CounterName = "11.出队列处理线程退出次数(次)"
)
]
public PerformanceCounter DequeueThreadEndPerformanceCounter
{
private set
{
_dequeueThreadEndPerformanceCounter = value;
}
get
{
return _dequeueThreadEndPerformanceCounter;
}
}
#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.Collections.Concurrent;
public class QueuedObjectsPool<T> where T: new()
{
private ConcurrentQueue<T> _pool = new ConcurrentQueue<T>();
public QueuedObjectsPool(int capacity)
{
_pool = new ConcurrentQueue<T>();
; i < capacity; i++)
{
PutNew();
}
}
public void PutNew()
{
var e = default(T);
e = new T();
Put(e);
}
public bool Put(T target)
{
var r = false;
if (target != null)
{
_pool.Enqueue(target);
r = true;
}
return r;
}
public T Get()
{
T r;
while (!_pool.TryDequeue(out r))
{
PutNew();
}
return r;
}
}
}
namespace Microshaoft
{
using System;
using System.Diagnostics;
public static class PerformanceCounterExtensionMethodsManager
{
public static void ChangeAverageTimerCounterValueWithTryCatchExceptionFinally
(
this PerformanceCounter performanceCounter
, bool enabled
, PerformanceCounter basePerformanceCounter
, Stopwatch stopwatch
, Action onCountPerformanceInnerProcessAction = null
, Func<PerformanceCounter, Exception, bool> onCaughtExceptionProcessFunc = null
, Action<PerformanceCounter, PerformanceCounter, bool, Exception> onFinallyProcessAction = null
)
{
//Stopwatch stopwatch = null;
if (enabled)
{
stopwatch.Reset();
stopwatch.Start();
}
if (onCountPerformanceInnerProcessAction != null)
{
bool reThrowException = false;
TryCatchFinallyProcessHelper
.TryProcessCatchFinally
(
true
, () =>
{
onCountPerformanceInnerProcessAction();
}
, reThrowException
, (x, y) =>
{
var r = reThrowException;
if (onCaughtExceptionProcessFunc != null)
{
r = onCaughtExceptionProcessFunc(performanceCounter, x);
}
return r;
}
, (x, y) =>
{
if (enabled && stopwatch != null && stopwatch.IsRunning)
{
stopwatch.Stop();
performanceCounter.IncrementBy(stopwatch.ElapsedTicks);
//stopwatch = null;
basePerformanceCounter.Increment();
}
if (onFinallyProcessAction != null)
{
onFinallyProcessAction
(
performanceCounter
, basePerformanceCounter
, x
, y
);
}
}
);
}
}
}
}
namespace Microshaoft
{
using System;
using System.Diagnostics;
[FlagsAttribute]
public enum MultiPerformanceCountersTypeFlags : ushort
{
,
,
,
,
,
};
[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = false)]
public class PerformanceCounterDefinitionAttribute : Attribute
{
public PerformanceCounterType CounterType;
public string CounterName;
}
}
namespace Microshaoft
{
using System;
using System.Diagnostics;
using System.Threading;
using System.Linq;
public static class PerformanceCountersHelper
{
public static void TryCountPerformance
(
bool enableCount
, bool reThrowException = false
, PerformanceCounter[] IncrementCountersBeforeCountPerformance = null
, PerformanceCounter[] DecrementCountersBeforeCountPerformance = null
, Tuple
<
bool //before时是否已经启动
, Stopwatch
, PerformanceCounter
, PerformanceCounter //base计数器
>[] timerCounters = null
, Action onTryCountPerformanceProcessAction = null
, Func<Exception, bool> onCaughtExceptionCountPerformanceProcessFunc = null
, Action<bool, Exception> onFinallyCountPerformanceProcessAction = null
, PerformanceCounter[] DecrementCountersAfterCountPerformance = null
, PerformanceCounter[] IncrementCountersAfterCountPerformance = null
)
{
if (onTryCountPerformanceProcessAction != null)
{
if (enableCount)
{
#region before
if (IncrementCountersBeforeCountPerformance != null)
{
Array.ForEach
(
IncrementCountersBeforeCountPerformance
, (x) =>
{
var l = x.Increment();
}
);
}
if (DecrementCountersBeforeCountPerformance != null)
{
Array.ForEach
(
DecrementCountersBeforeCountPerformance
, (x) =>
{
var l = x.Decrement();
)
{
;
}
}
);
}
if (timerCounters != null)
{
Array.ForEach
(
timerCounters
, (x) =>
{
if
(
x.Item1
&& x.Item2 != null
)
{
#if NET45
x.Item2.Restart();
#elif NET35
x.Item2.Reset();
x.Item2.Start();
#endif
}
}
);
}
#endregion
}
var needTry = true;
TryCatchFinallyProcessHelper
.TryProcessCatchFinally
(
needTry
, () =>
{
onTryCountPerformanceProcessAction();
}
, reThrowException
, (x, y) =>
{
if (onCaughtExceptionCountPerformanceProcessFunc != null)
{
reThrowException = onCaughtExceptionCountPerformanceProcessFunc(x);
}
return reThrowException;
}
, (x, y) =>
{
if (enableCount)
{
#region after
#if NET45
if (timerCounters != null)
{
Array.ForEach
(
timerCounters
, (xx) =>
{
if (xx.Item2 != null)
{
Stopwatch stopwatch = xx.Item2;
stopwatch.Stop();
long elapsedTicks = stopwatch.ElapsedTicks;
var counter = xx.Item3;
counter.IncrementBy(elapsedTicks);
//池化
//stopwatch = null;
counter = xx.Item4; //base
counter.Increment();
}
}
);
}
#endif
if (IncrementCountersAfterCountPerformance != null)
{
Array.ForEach
(
IncrementCountersAfterCountPerformance
, (xx) =>
{
var l = xx.Increment();
}
);
}
if (DecrementCountersAfterCountPerformance != null)
{
Array.ForEach
(
DecrementCountersAfterCountPerformance
, (xx) =>
{
var l = xx.Decrement();
)
{
;
}
}
);
}
#endregion
}
if (onFinallyCountPerformanceProcessAction != null)
{
onFinallyCountPerformanceProcessAction(x, y);
}
}
);
}
}
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)
);
}
).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
,
};
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.Diagnostics;
using System.Reflection;
#if NET45
//#endif
using System.Threading.Tasks;
//#if NET45
#endif
public static class TryCatchFinallyProcessHelper
{
#if NET45
//#endif
public static async Task<T> TryProcessCatchFinallyAsync<T>
(
bool needTry
, Func<Task<T>> onTryProcessFunc
, bool reThrowException = false
, Func<Exception, bool> onCaughtExceptionProcessFunc = null
, Action<bool, Exception> onFinallyProcessAction = null
)
{
T r = default(T);
//if (onTryProcessAction != null)
{
if (needTry)
{
Exception exception = null;
var caughtException = false;
try
{
r = await onTryProcessFunc();
return r;
}
catch (Exception e)
{
caughtException = true;
exception = e;
var currentCalleeMethod = MethodInfo.GetCurrentMethod();
var currentCalleeType = currentCalleeMethod.DeclaringType;
StackTrace stackTrace = new StackTrace();
);
var callerMethod = stackFrame.GetMethod();
var callerType = callerMethod.DeclaringType;
);
stackFrame = stackTrace.GetFrame(frame);
var originalCallerMethod = stackFrame.GetMethod();
var originalCallerType = originalCallerMethod.DeclaringType;
var innerExceptionMessage = string.Format
(
"Rethrow caught [{1}] Exception{0} at Callee Method: [{2}]{0} at Caller Method: [{3}]{0} at Original Caller Method: [{4}]"
, "\r\n\t"
, e.Message
, string.Format("{1}{0}{2}", "::", currentCalleeType, currentCalleeMethod)
, string.Format("{1}{0}{2}", "::", callerType, callerMethod)
, string.Format("{1}{0}{2}", "::", originalCallerType, originalCallerMethod)
);
Console.WriteLine(innerExceptionMessage);
if (onCaughtExceptionProcessFunc != null)
{
reThrowException = onCaughtExceptionProcessFunc(e);
}
if (reThrowException)
{
throw
new Exception
(
innerExceptionMessage
, e
);
}
return r;
}
finally
{
if (onFinallyProcessAction != null)
{
onFinallyProcessAction(caughtException, exception);
}
}
}
else
{
return await onTryProcessFunc();
}
}
}
//#if NET45
#endif
public static void TryProcessCatchFinally
(
bool needTry
, Action onTryProcessAction
, bool reThrowException = false
, Func<Exception, string, bool> onCaughtExceptionProcessFunc = null
, Action<bool, Exception> onFinallyProcessAction = null
)
{
if (onTryProcessAction != null)
{
if (needTry)
{
Exception exception = null;
var caughtException = false;
try
{
onTryProcessAction();
}
catch (Exception e)
{
caughtException = true;
exception = e;
#if NET45
if (e is AggregateException)
{
var aggregateException = e as AggregateException;
if (aggregateException != null)
{
exception = aggregateException.Flatten();
}
}
#endif
var currentCalleeMethod = MethodInfo.GetCurrentMethod();
var currentCalleeType = currentCalleeMethod.DeclaringType;
StackTrace stackTrace = new StackTrace(e, true);
);
var callerMethod = stackFrame.GetMethod();
var callerType = callerMethod.DeclaringType;
);
stackFrame = stackTrace.GetFrame(frame);
var originalCallerMethod = stackFrame.GetMethod();
var originalCallerType = originalCallerMethod.DeclaringType;
var innerExceptionMessage = string.Format
(
"Rethrow caught [{1}] Exception{0} at Callee Method: [{2}]{0} at Caller Method: [{3}]{0} at Original Caller Method: [{4}]"
, "\r\n\t"
, e.Message
, string.Format("{1}{0}{2}", "::", currentCalleeType, currentCalleeMethod)
, string.Format("{1}{0}{2}", "::", callerType, callerMethod)
, string.Format("{1}{0}{2}", "::", originalCallerType, originalCallerMethod)
);
//Console.WriteLine(innerExceptionMessage);
if (onCaughtExceptionProcessFunc != null)
{
reThrowException = onCaughtExceptionProcessFunc(e, innerExceptionMessage);
}
if (reThrowException)
{
throw
new Exception
(
innerExceptionMessage
, e
);
}
}
finally
{
//Console.WriteLine("Finally");
if (onFinallyProcessAction != null)
{
onFinallyProcessAction(caughtException, exception);
}
}
}
else
{
onTryProcessAction();
}
}
}
}
}
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), "P");
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), "p");
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<TTarget, TProperty> CreateGetPropertyValueFunc<TTarget, TProperty>
(
Type type
, string propertyName
)
{
var target = Expression.Parameter(typeof(object), "p");
var getPropertyValue = Expression.Property(target, propertyName);
var lambda = Expression.Lambda<Func<TTarget, 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), "p");
var propertyValue = Expression.Parameter(typeof(object), "p");
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<TTarget, TProperty> CreateTargetSetPropertyValueAction<TTarget, TProperty>
(
Type type
, string propertyName
)
{
Action<TTarget, 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(TTarget), "p");
var propertyValue = Expression.Parameter(typeof(TProperty), "p");
var getSetMethod = property.GetSetMethod();
if (getSetMethod == null)
{
getSetMethod = property.GetSetMethod(true);
}
var call = Expression.Call(target, getSetMethod, propertyValue);
var lambda = Expression.Lambda<Action<TTarget, TProperty>>(call, target, propertyValue);
action = lambda.Compile();
}
return action;
}
public static Action<TTarget, object> CreateTargetSetPropertyValueAction<TTarget>
(
Type type
, string propertyName
)
{
Action<TTarget, 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(TTarget), "p");
var propertyValue = Expression.Parameter(typeof(object), "p");
var castPropertyValue = Expression.Convert(propertyValue, property.PropertyType);
var getSetMethod = property.GetSetMethod();
if (getSetMethod == null)
{
getSetMethod = property.GetSetMethod(true);
}
var call = Expression.Call(target, getSetMethod, castPropertyValue);
var lambda = Expression.Lambda<Action<TTarget, object>>(call, target, propertyValue);
action = lambda.Compile();
}
return action;
}
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), "p");
var propertyValue = Expression.Parameter(typeof(TProperty), "p");
var castTarget = Expression.Convert(target, type);
var getSetMethod = property.GetSetMethod();
if (getSetMethod == null)
{
getSetMethod = property.GetSetMethod(true);
}
var call = Expression.Call(castTarget, getSetMethod, propertyValue);
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), "p");
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), "p");
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);
}
}
}
|
ConcurrentAsyncQueue 2014-09-07的更多相关文章
- 12.我们不是在真空里谈软件工程， 软件要运行在硬件芯片上面， 下面看看一个计算机芯片的发展历史： http://perspectives.mvdirona.com/2014/09/august-21-2014-computer-history-museum-presentation/ http://mvdirona.com/jrh/TalksAndPapers/DileepBhandar
电脑芯片的诞生和发展是20世纪最伟大的发明之一,芯片技术决定了计算机升级换代的速度,决定了计算机小型化实现的程度,决定了计算机智能化的程度,决定了计算机普及化的应用深度. 1971年11月15日,英特 ...
- Swift迎来了1.0 GM 版(2014.09.09)
2014年6月2日,swift开发团队将swift语言公之于众.而2014年9月9日迎来了swift的第二个里程碑,swift1.0版本号(GM),这意味着无论你的应用有一部分功能是用swift写的, ...
- Cheatsheet: 2014 09.01 ~ 09.30
Mobile Testing Mobile: Emulators, Simulators And Remote Debugging iOS 8 and iPhone 6 for Web Develop ...
- Cheatsheet: 2013 07.09 ~ 07.20
Mobile How to implement Android Splash Screen Migrating iOS MVC Applications to Windows Phone 8 (M-V ...
- NFC会员管理-转载自http://technews.cn/2014/09/13/nfc-sticker/
基隆的百年名店“李鹄饼店”误用馊水油,客人纷纷上门退货,因退货条件宽松,客人一货两退,造成巨大的损失.为了平息客人的愤怒,店家允许客人凭发 票或商品办理退货,有的客人先用发票退一次钱,再用商品退一次钱 ...
- DataGridView 选中行 分类： DataGridView 2015-01-22 09:07 51人阅读 评论(0) 收藏
说明: (1)命名 DataGridView 名称:dgvStockFirst 行索引:recordIndex (2)设置DataGridView属性: SelectionMode=FullRowSe ...
- 2014/09/30 Learning Note
Vbird Linux: Vim Learning: http://linux.vbird.org/linux_basic/0310vi.php Bash Shell: http://linux.vb ...
- 更新整理本人全部博文中提供的代码与工具（Java，2014.09）
为了更方便地管理博文中涉及的各种代码与工具资源,如今把这些资源迁移到 GitHub 中,有兴趣者可前往下载. Java 1.<高效 Java Web 应用开发框架 JessMA v3.4.1 正 ...
- 更新代码和工具，组织起来，提供所有博文（C++，2014.09）
为了更容易地管理各种规范和工具所涉及的资源鲍文,现在把这些资源迁移 GitHub 在,趣者可前往下载. C++ 1.<通用高性能 Windows Socket 组件 HP-Socket v3.2 ...
- gulp ( http://markpop.github.io/2014/09/17/Gulp入门教程 )
前言 最近流行前端构建工具,苦于之前使用Grunt,代码很难阅读,现在出了Gulp,真是摆脱了痛苦.发现了一篇很好的Gulp英文教程,整理翻译给大家看看. 为什么使用Gulp Gulp基于Node.j ...
随机推荐
- linux 系统、命令、软件
软件名称:Putty 使用方法:http://jingyan.baidu.com/article/e73e26c0eb063324adb6a737.html 需要资料: 服务IP:228.5624.5 ...
- Google数据交换格式：ProtoBuf
Protocol Buffer ProtocolBuffer是Google公司的一个开源项目,用于结构化数据串行化的灵活.高效.自动的方法,有如XML,不过它更小.更快.也更简单.你可以定义自己的数据 ...
- Python之路3【第一篇】Python基础
本节内容 Python简介 Python安装 第一个Python程序 编程语言的分类 Python简介 1.Python的由来 python的创始人为吉多·范罗苏姆(Guido van Rossum) ...
- sqlserver数据库标注为可疑的解决办法（转）
前几天客户那边的服务器死机了,然后客户强制关机,重新启动服务器后,系统就没法正常使用,连接不上服务器,我远程操作后,看到数据库标注为可疑,由于客户之前没备份数据库,看来只能是修复了: 1:停止数据库服 ...
- D3.js学习（一）
从今天开始我将和大家一起学习D3.js(Data-Driven Documents),由于国内关于D3的学习资料少之又少,所以我觉得很有必要把自己学习过程记录下来,供同学们参考,如果文章有有哪些表达有 ...
- hashMap 深入理解
1.java 的hashMap 是通过 链地址 法来解决 hash冲突的 2.初始时是一个empty table, 第一次添加数据时检查到时空数组就会 生成指定容量的数组,也就是 在第一次使用时才初始 ...
- mysql 优化
1.存储过程造数据 CREATE DEFINER=`root`@`localhost` PROCEDURE `generate_test_data`(`n` int) begin declare i ...
- JS学习：第一周——NO.4继承
1.[关于call] 作用:是用来改变this指向的,有两种参数 第一种:第一个参数,用来改变this指向 第二种:给call前面的函数传参,从第二个参数开始,给call前面的函数从左到右一个个的传参 ...
- 【HEOI2012】采花 BZOJ2743
Description 萧芸斓是Z国的公主,平时的一大爱好是采花. 今天天气晴朗,阳光明媚,公主清晨便去了皇宫中新建的花园采花.花园足够大,容纳了n朵花,花有c种颜色(用整数1-c表示),且花是排成一 ...
- Mongo基础使用，以及在Express项目中使用Mongoose
MongoDB的基本使用 MongoDB特点: 使用BSON存储数据 支持相对丰富的查询操作(相对其他nosql数据库) 支持索引 副本集(支持多个实例/多个服务器运行同个数据库) 分片(数据库水平扩 ...