/// <summary>使用信号号方式限制异步方法并发量</summary>
/// <param name="source">一个值序列，要对该序列调用转换函数。</param>
/// <param name="selector">应用于每个元素的转换函数。</param>
/// <param name="token">The token.</param>
/// <param name="maxParallel">最大并行执行量，≤1时为CPU核心数量</param>
/// <remarks>不要对已经开始的Task进行限制，比如List<Task>，因为Task已经开始了。</remarks>
public static IEnumerable <Task> ParallelSelect <TSource>(this IEnumerable <TSource> source, Func <TSource, Task> selector, CancellationToken token, int maxParallel = 0)
{
using (var enumerator = source.GetEnumerator())
{
var invoker = new ParallelInvoker(maxParallel, token);
while (enumerator.MoveNext())
{
yield return(invoker.Invoke(enumerator.Current, selector));
}
}
}
public void ShouldUseExecutonEngine()
{
_workflow.Do(a => a += ", yellow").And.Do(b => b += ", orange").Then();
var func1 = ((ParallelInvoker<string>)_workflow.RegisteredOperations.Tasks[0].Command).RegisteredOperations[0];
var func2 = ((ParallelInvoker<string>)_workflow.RegisteredOperations.Tasks[0].Command).RegisteredOperations[1];
var ps = new ParallelInvoker<string>(_engine);
ps.RegisteredOperations.Add(func1);
ps.RegisteredOperations.Add(func2);
Expect.Call(_engine.Execute(func1, "Red")).Return("Red, yellow").IgnoreArguments().Repeat.Twice();
_mocker.ReplayAll();
var result = ps.Execute("Red");
_mocker.VerifyAll();
}
public void ShouldUseExecutonEngine()
{
_workflow.Do(a => a += ", yellow").And.Do(b => b += ", orange").Then();
var func1 = ((ParallelInvoker <string>)_workflow.RegisteredOperations.Tasks[0].Command).RegisteredOperations[0];
var func2 = ((ParallelInvoker <string>)_workflow.RegisteredOperations.Tasks[0].Command).RegisteredOperations[1];
var ps = new ParallelInvoker <string>(_engine);
ps.RegisteredOperations.Add(func1);
ps.RegisteredOperations.Add(func2);
Expect.Call(_engine.Execute(func1, "Red")).Return("Red, yellow").IgnoreArguments().Repeat.Twice();
_mocker.ReplayAll();
var result = ps.Execute("Red");
_mocker.VerifyAll();
}
public Game () {
Graphics = new GraphicsDeviceManager(this);
Graphics.PreferredBackBufferWidth = Width;
Graphics.PreferredBackBufferHeight = Height;
Graphics.PreferMultiSampling = false;
Graphics.SynchronizeWithVerticalRetrace = true;
UseThreadedDraw = ThreadedPaint;
IsFixedTimeStep = false;
Content.RootDirectory = "Content";
#if XBOX
Components.Add(new KiloWatt.Runtime.Support.ThreadPoolComponent(this));
#endif
ParallelUpdater = new ParallelInvoker<UpdateArgs>(
this, ParallelUpdateOrbs, ThreadedUpdate
);
ParallelDrawer = new ParallelInvoker<DrawArgs>(
this, ParallelPrepareOrbs, ThreadedPaint
);
}
public Game()
{
Graphics = new GraphicsDeviceManager(this);
Graphics.PreferredDepthStencilFormat = DepthFormat.None;
Graphics.PreferredBackBufferWidth = Width;
Graphics.PreferredBackBufferHeight = Height;
Graphics.PreferMultiSampling = false;
Graphics.SynchronizeWithVerticalRetrace = true;
UseThreadedDraw = ThreadedPaint;
IsFixedTimeStep = false;
Content.RootDirectory = "Content";
ParallelUpdater = new ParallelInvoker<UpdateArgs>(
this, ParallelUpdateOrbs, ThreadedUpdate
);
ParallelDrawer = new ParallelInvoker<DrawArgs>(
this, ParallelPrepareOrbs, ThreadedPaint
);
}
