public ParallelInvoker(Game game, ParallelInvokerTarget <T> function, bool multiThreaded)
{
Function = function;
if (multiThreaded)
{
// Try to pick a good number of threads based on the current CPU count.
// Too many and we'll get bogged down in scheduling overhead. Too few and we won't benefit from parallelism.
ThreadCount = Math.Max(2, Math.Min(8, Environment.ProcessorCount));
}
else
{
ThreadCount = 1;
}
UserData = new T();
Delegates = new InvokerFunction[ThreadCount];
for (int i = 0; i < ThreadCount; i++)
{
int j = i;
Delegates[i] =
() => InvokeInternal(j);
}
}
public ParallelInvoker(Game game, ParallelInvokerTarget <T> function, bool multiThreaded)
{
Function = function;
if (multiThreaded)
{
#if XBOX
// ThreadPoolComponent always uses 3 threads on XBox 360.
ThreadCount = 3;
#else
// Try to pick a good number of threads based on the current CPU count.
// Too many and we'll get bogged down in scheduling overhead. Too few and we won't benefit from parallelism.
ThreadCount = Math.Max(2, Math.Min(8, Environment.ProcessorCount));
#endif
}
else
{
ThreadCount = 1;
}
UserData = new T();
Delegates = new InvokerFunction[ThreadCount];
for (int i = 0; i < ThreadCount; i++)
{
int j = i;
Delegates[i] =
() => InvokeInternal(j);
}
#if XBOX
Signals = new AutoResetEvent[ThreadCount];
for (int i = 0; i < ThreadCount; i++)
{
Signals[i] = new AutoResetEvent(false);
}
foreach (var component in game.Components)
{
ThreadPool = component as ThreadPoolComponent;
if (ThreadPool != null)
{
break;
}
}
if (ThreadPool == null)
{
throw new InvalidOperationException("You must have a ThreadPoolComponent to use a ParallelInvoker");
}
#endif
}
