internal ParallelQueue <ForeachPart <T, T1, T2> > FillWithForeachPart <T, T1, T2>(int from, int to, Action <T, T1, T2> action, IEnumerable <T> source, T1 value1, T2 value2)
{
ParallelQueue <ForeachPart <T, T1, T2> > parallelQueue = new ParallelQueue <ForeachPart <T, T1, T2> >();
int innercounter = 0;
foreach (T sourceLocal in source)
{
if (innercounter >= from && innercounter <= to)
{
ForeachPart <T, T1, T2> foreachPart = new ForeachPart <T, T1, T2>();
foreachPart.Start = innercounter;
foreachPart.End = innercounter;
foreachPart.ExecutionPart = action;
foreachPart.SingleSource = sourceLocal;
foreachPart.Value1 = value1;
foreachPart.Value2 = value2;
parallelQueue.Enqueue(foreachPart);
}
else if (innercounter > to)
{
break;
}
innercounter++;
}
return(parallelQueue);
}
public void ForeachExecution <T1, T2>(IEnumerable <T> source, Action <T, T1, T2> action, T1 value1, T2 value2)
{
int counter = 0;
while (source.GetEnumerator().MoveNext())
{
counter++;
}
chunk = counter / processorCount;
int start = 0;
int end = chunk;
for (int i = 1; i <= processorCount; i++)
{
int x = i - 1;
waitHandles[x] = new ManualResetEvent(false);
ForeachPart <T, T1, T2> forEachPart = new ForeachPart <T, T1, T2>();
forEachPart.ExecutionPart = action;
forEachPart.Source = source;
forEachPart.Start = start;
forEachPart.End = end;
forEachPart.Value1 = value1;
forEachPart.Value2 = value2;
ConstantForeachSynchronisationContainer <T, T1, T2> foreachSynchronisationContainer =
new ConstantForeachSynchronisationContainer <T, T1, T2>((ManualResetEvent)waitHandles[x], forEachPart);
ThreadPool.QueueUserWorkItem(
delegate(object state)
{
ConstantForeachSynchronisationContainer <T, T1, T2> forSynchronisationContainer = (ConstantForeachSynchronisationContainer <T, T1, T2>)state;
ForeachPart <T, T1, T2> foreachPart = forSynchronisationContainer.ForEachPart_;
try
{
int innercounter = 0;
foreach (T sourceLocal in foreachPart.Source)
{
if (innercounter >= foreachPart.Start && innercounter <= foreachPart.End)
{
foreachPart.ExecutionPart.Invoke(ref innercounter, sourceLocal, foreachPart.Value1, foreachPart.Value2);
}
else if (innercounter > foreachPart.End)
{
break;
}
innercounter++;
}
}
finally
{
forSynchronisationContainer.ManualResetEvent_.Set();
}
}, foreachSynchronisationContainer);
start = end + 1;
end = end + chunk;
}
WaitHandle.WaitAll(waitHandles);
}
public void ForeachExecution(IEnumerable <T> source, Action <T> action, ExecutionConstancyEnum executionConstancy)
{
if (executionConstancy == ExecutionConstancyEnum.Constant)
{
ForeachExecution(source, action);
}
else
{
ParallelQueue <ForeachPart <T> >[] parallelQueues = new ParallelQueue <ForeachPart <T> > [processorCount];
int counter = 0;
while (source.GetEnumerator().MoveNext())
{
counter++;
}
chunk = counter / processorCount;
int start = 0;
int end = chunk;
for (int i = 1; i <= processorCount; i++)
{
int x = i - 1;
waitHandles[x] = new ManualResetEvent(false);
ParallelQueueFiller parallelQueueFiller = new ParallelQueueFiller();
ParallelQueue <ForeachPart <T> > parallelQueue = parallelQueueFiller.FillWithForeachPart <T>(start, end, action, source);
parallelQueues[x] = parallelQueue;
UnconstantForeachSynchronisationContainer <T> unconstantForeachSynchronisationContainer =
new UnconstantForeachSynchronisationContainer <T>((ManualResetEvent)waitHandles[x], parallelQueue, parallelQueues);
ThreadPool.QueueUserWorkItem(
delegate(object state)
{
UnconstantForeachSynchronisationContainer <T> localUnconstantForeachSynchronisationContainer =
(UnconstantForeachSynchronisationContainer <T>)state;
ParallelQueue <ForeachPart <T> > localparallelQueue = localUnconstantForeachSynchronisationContainer.ParallelQueue;
ParallelQueue <ForeachPart <T> >[] localparallelQueues = localUnconstantForeachSynchronisationContainer.ParallelQueues;
try
{
bool localQueueIsEmpty = false;
while (!localQueueIsEmpty)
{
ForeachPart <T> foreachPart = localparallelQueue.Dequeue();
if (foreachPart != null)
{
int ii = foreachPart.Start;
foreachPart.ExecutionPart.Invoke(ref ii, foreachPart.SingleSource);
}
else
{
localQueueIsEmpty = true;
}
}
foreach (ParallelQueue <ForeachPart <T> > localForegnParallelQueue in localparallelQueues)
{
if (localForegnParallelQueue != localparallelQueue)
{
bool localForegnQueueIsEmpty = false;
while (!localForegnQueueIsEmpty)
{
ForeachPart <T> foreachPart = localForegnParallelQueue.Steal();
if (foreachPart != null)
{
int ii = foreachPart.Start;
foreachPart.ExecutionPart.Invoke(ref ii, foreachPart.SingleSource);
}
else
{
localForegnQueueIsEmpty = true;
}
}
}
}
}
finally
{
localUnconstantForeachSynchronisationContainer.ManualResetEvent_.Set();
}
}, unconstantForeachSynchronisationContainer);
start = end + 1;
end = end + chunk;
}
WaitHandle.WaitAll(waitHandles);
}
}
public ConstantForeachSynchronisationContainer(ManualResetEvent manualResetEvent, ForeachPart <T> forEeachPart)
: base(manualResetEvent)
{
this.forEeachPart_ = forEeachPart;
}