void OnExecutor_ProcessItemCompleted(ThreadExecutor <T> source, ThreadExecutorItem <T> item)
{
ModuleProc PROC = new ModuleProc(DYN_MODULE_NAME, "OnExecutor_ProcessItemCompleted");
try
{
lock (_lockList)
{
try
{
Interlocked.Decrement(ref _activeWorkers);
this.ActiveWorkerThreadDecrement(source.UniqueKey, item.UniqueKey);
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
}
// wake the producers who are waiting to produce
if (_fullWaiters > 0)
{
lock (_lockFullEvent)
{
Monitor.Pulse(_lockFullEvent);
}
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
}
private ThreadExecutor <T> AddThreadExecutor(string itemKey)
{
ModuleProc PROC = new ModuleProc(DYN_MODULE_NAME, "Initialize");
ThreadExecutor <T> executor = null;
try
{
IThreadSafeQueue <ThreadExecutorItem <T> > threadQueue = null;
if (_kernelModeQueue)
{
threadQueue = new BlockingBoundQueueKernel <ThreadExecutorItem <T> >(this.ThreadExecutorService, this.QueueCapacity);
}
else
{
threadQueue = new BlockingBoundQueueUser <ThreadExecutorItem <T> >(this.ThreadExecutorService, this.QueueCapacity);
}
executor = new ThreadExecutor <T>(this.ThreadExecutorService, threadQueue, false, itemKey);
executor.ProcessItem += new ExecutorProcessItemHandler <T>(OnExecutor_ProcessItem);
executor.ProcessItemCompleted += new ExecutorProcessItemCompletedHandler <T>(OnExecutor_ProcessItemCompleted);
_activeWorkersCount.Add(itemKey, new ThreadHashValue()
{
Executor = executor,
ItemCount = 0
});
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
return(executor);
}
private void DoWorkItem(ThreadExecutor <T> executor, T item)
{
ModuleProc PROC = new ModuleProc(DYN_MODULE_NAME, "DoWorkItem");
try
{
if (!item.Equals(default(T)))
{
try
{
if (executor != null)
{
ThreadExecutorItem <T> executorItem = new ThreadExecutorItem <T>(item);
executor.QueueWorkerItem(executorItem);
Interlocked.Increment(ref _activeWorkers);
this.ActiveWorkerThreadIncrement(executor.UniqueKey, item.UniqueKey);
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
}
public int CompareTo(ThreadExecutor <T> other)
{
if (other == null)
{
return(1);
}
return(string.Compare(_uniqueKey, other._uniqueKey, true));
}
protected override bool IsQueueFull(ThreadExecutor <T> executor, T item)
{
if (_activeWorkers == this.Capacity)
{
return(true);
}
return(_activeWorkersCount[executor.UniqueKey].ItemCount == this.QueueCapacity);
}
private ThreadExecutor <T> GetFreeThreadExecutor(T item)
{
ModuleProc PROC = new ModuleProc(this.DYN_MODULE_NAME, "GetFreeThreadExecutor");
ThreadExecutor <T> executor = null;
try
{
// executor key free thread approach
if (item is IExecutorKeyFreeThread)
{
// find the thread with minimum number of items
IGrouping <int, KeyValuePair <int, int> > groupedItem = (from i in _workerThreadItems
group i by i.Value).OrderBy(i => i.Key).FirstOrDefault();
int index = 0;
if (groupedItem != null)
{
index = groupedItem.FirstOrDefault().Key;
}
if (index >= 0 && index < _workerThreads.Count)
{
executor = _workerThreads[index];
Log.Info(PROC, "Thread " + executor.ContainerIndex.ToString() + " was taken by IExecutorKeyFreeThread approach.");
if (_workerThreadItems.ContainsKey(index))
{
_workerThreadItems[index] = _workerThreadItems[index] + 1;
}
}
}
// executor key thread approach
if (executor == null &&
item is IExecutorKeyThread)
{
int index = ((IExecutorKeyThread)item).GetThreadIndex(this.Capacity);
if (index >= 0 && index < _workerThreads.Count)
{
executor = _workerThreads[index];
Log.Info(PROC, "Thread " + executor.ContainerIndex.ToString() + " was taken by ExecutorKeyTheread approach.");
}
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
finally
{
// no more free threads
if (executor == null)
{
executor = _workerThreads[_rnd.Next(0, _workerThreads.Count - 1)];
Log.Info(PROC, "Thread " + executor.ContainerIndex.ToString() + " was taken as random.");
}
}
return(executor);
}
private void DoWorkItem(T item)
{
ModuleProc PROC = new ModuleProc(DYN_MODULE_NAME, "DoWorkItem");
try
{
if (!item.Equals(default(T)))
{
try
{
if (_workersFree.First != null)
{
ThreadExecutor <T> executor = _workersFree.First.Value;
string executorKey = executor.UniqueKey;
string itemKey = item.UniqueKey;
List <ThreadExecutorItem <T> > workerSequence = null;
_workersFree.RemoveFirst();
if (!_workersRunning.ContainsKey(executorKey))
{
_workersRunning.Add(executorKey, executor);
}
if (!_workerSequences.ContainsKey(itemKey))
{
_workerSequences.Add(itemKey, new List <ThreadExecutorItem <T> >());
}
workerSequence = _workerSequences[itemKey];
EventWaitHandle wh = null;
if (workerSequence.Count > 0)
{
//wh = new ManualResetEvent(false);
wh = executor.QueueSignal;
wh.Reset();
}
ThreadExecutorItem <T> executorItem = new ThreadExecutorItem <T>(item);
executorItem.WaitHandle = wh;
workerSequence.Add(executorItem);
executor.QueueWorkerItem(executorItem);
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
}
private void Initialize(bool checkItemCount)
{
ModuleProc PROC = new ModuleProc(DYN_MODULE_NAME, "Initialize");
try
{
_uniqueKey = "QueueThreadsThreadPoolExecutor_" + Guid.NewGuid().ToString();
Log.InfoV(PROC, "{0} : Capacity : {1:D}, Queue Capacity : {2:D}", _uniqueKey, this.Capacity, this.QueueCapacity);
this.RegisterForShutdown();
this.ExecutorService.AddExecutor(this);
_workerThreads = new List <ThreadExecutor <T> >();
_activeWorkersCount = new SortedDictionary <string, ThreadHashValue>(StringComparer.InvariantCultureIgnoreCase);
_workerThreadItems = new SortedDictionary <int, int>();
_rnd = new Random(0);
for (int i = 0; i < this.Capacity; i++)
{
IThreadSafeQueue <ThreadExecutorItem <T> > threadQueue = null;
if (_kernelModeQueue)
{
threadQueue = new BlockingBoundQueueKernel <ThreadExecutorItem <T> >(this.ThreadExecutorService, this.QueueCapacity);
}
else
{
threadQueue = new BlockingBoundQueueUser <ThreadExecutorItem <T> >(this.ThreadExecutorService, this.QueueCapacity);
}
ThreadExecutor <T> executor = new ThreadExecutor <T>(this.ThreadExecutorService, threadQueue, checkItemCount, string.Empty);
executor.ProcessItem += new ExecutorProcessItemHandler <T>(OnExecutor_ProcessItem);
executor.ProcessItemCompleted += new ExecutorProcessItemCompletedHandler <T>(OnExecutor_ProcessItemCompleted);
executor.ContainerIndex = i;
_workerThreads.Add(executor);
_activeWorkersCount.Add(executor.UniqueKey, new ThreadHashValue()
{
Executor = executor,
ItemCount = 0
});
if (!_workerThreadItems.ContainsKey(i))
{
_workerThreadItems.Add(i, 0);
}
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
}
private void Initialize(bool kernelModeQueue)
{
ModuleProc PROC = new ModuleProc(DYN_MODULE_NAME, "Initialize");
try
{
_uniqueKey = "FreeThreadPoolExecutor_" + Guid.NewGuid().ToString();
this.RegisterForShutdown();
this.ExecutorService.AddExecutor(this);
Log.InfoV(PROC, "{0} : Capacity : {1:D}", _uniqueKey, this.Capacity);
_workersFree = new LinkedList <ThreadExecutor <T> >();
_workersRunning = new SortedDictionary <string, ThreadExecutor <T> >(StringComparer.InvariantCultureIgnoreCase);
_workerSequences = new SortedDictionary <string, List <ThreadExecutorItem <T> > >(StringComparer.InvariantCultureIgnoreCase);
for (int i = 0; i < this.Capacity; i++)
{
IThreadSafeQueue <ThreadExecutorItem <T> > threadQueue = null;
if (kernelModeQueue)
{
threadQueue = new BlockingBoundQueueKernel <ThreadExecutorItem <T> >(this.ExecutorService, 1);
}
else
{
threadQueue = new BlockingBoundQueueUser <ThreadExecutorItem <T> >(this.ExecutorService, 1);
}
ThreadExecutor <T> executor = new ThreadExecutor <T>(this.ExecutorService, threadQueue);
executor.ProcessItem += new ExecutorProcessItemHandler <T>(OnExecutor_ProcessItem);
executor.ProcessItemCompleted += new ExecutorProcessItemCompletedHandler <T>(OnExecutor_ProcessItemCompleted);
_workersFree.AddLast(new LinkedListNode <ThreadExecutor <T> >(executor));
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
}
public override void QueueWorkerItem(T item)
{
ModuleProc PROC = new ModuleProc(DYN_MODULE_NAME, "QueueWorkerItem");
ThreadExecutor <T> executor = null;
if (this.ExecutorService.IsShutdown)
{
return;
}
string itemKey = string.Empty;
lock (_lockList)
{
try
{
if (!item.Equals(default(T)))
{
// find the executor
itemKey = item.UniqueKey;
if (_itemWorkerThreads.ContainsKey(itemKey))
{
executor = _itemWorkerThreads[itemKey];
}
else
{
executor = this.GetFreeThreadExecutor(item);
Log.Info(PROC, string.Format("Found Thread Index : {0:D} for item key : {1}", executor.ContainerIndex, itemKey));
_itemWorkerThreads.Add(itemKey, executor);
}
}
if (executor != null)
{
// if full, wait until some items consumed
while (this.IsQueueFull(executor, item))
{
Log.Description(PROC, "Queue is full. Thread pool is blocked for : " + itemKey);
if (this.ExecutorService.IsShutdown)
{
break;
}
_fullWaiters++;
try
{
lock (_lockFullEvent)
{
Monitor.Exit(_lockList);
Log.Debug(PROC, "Locked : " + _uniqueKey);
Monitor.Wait(_lockFullEvent);
Log.Debug(PROC, "Unlocked : " + _uniqueKey);
Monitor.Enter(_lockList);
}
}
finally
{
_fullWaiters--;
}
}
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
finally
{
if (!this.ExecutorService.IsShutdown)
{
this.DoWorkItem(executor, item);
}
}
}
}
protected abstract bool IsQueueFull(ThreadExecutor <T> executor, T item);
protected virtual bool IsQueueFull(ThreadExecutor <T> executor, T item)
{
return(_activeWorkersCount[item.UniqueKey].ItemCount == this.QueueCapacity);
}
void OnExecutor_ProcessItemCompleted(ThreadExecutor <T> source, ThreadExecutorItem <T> item)
{
ModuleProc PROC = new ModuleProc(DYN_MODULE_NAME, "OnExecutor_ProcessItemCompleted");
try
{
lock (_lockList)
{
try
{
string executorKey = source.UniqueKey;
string itemKey = item.UniqueKey;
if (_workersRunning.ContainsKey(executorKey))
{
ThreadExecutor <T> executor = _workersRunning[executorKey];
if (source == executor)
{
_workersRunning.Remove(executorKey);
_workersFree.AddLast(executor);
if (_workerSequences.ContainsKey(itemKey))
{
List <ThreadExecutorItem <T> > workerSequence = _workerSequences[itemKey];
if (workerSequence.Count > 0)
{
ThreadExecutorItem <T> sequenceItem = workerSequence[0];
EventWaitHandle wh = sequenceItem.WaitHandle;
if (wh != null)
{
//wh.Close();
//wh = null;
wh.Reset();
}
workerSequence.RemoveAt(0);
if (workerSequence.Count > 0)
{
wh = workerSequence[0].WaitHandle;
if (wh != null)
{
wh.Set();
}
}
}
}
}
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
}
// wake the producers who are waiting to produce
if (_fullWaiters > 0)
{
lock (_lockFullEvent)
{
Monitor.Pulse(_lockFullEvent);
}
}
}
catch (Exception ex)
{
Log.Exception(PROC, ex);
}
}
