如何评估是否有任何未完成的并行任务,并等待他们完成几个sprint?

最后使用了 Barrier 班级。

MSDN

屏障是一个用户定义的同步原语,用于 分阶段算法。。。

基本用法:

static barrier = new Barrier(N, (sprint) => { Console.WriteLine($"Current sprint: {sprint.CurrentPhaseNumber}");

然后,每次我们都希望快速任务等待我们刚刚添加的慢速任务:

barrier.SignalAndWait();

static Barrier barrier = new Barrier(2, (bar) =>
{
  Console.WriteLine($"Current sprint number: {bar.CurrentPhaseNumber}.");
});

public static void task1() 
{
    Console.WriteLine("Start of sprint 1 (task1)");
    barrier.SignalAndWait(); //Need to wait for task2 to complete sprint1 and proceed.
    Console.WriteLine("End of sprint 1 (task1)");

    Console.WriteLine("Start of sprint 2 (task1)");
    barrier.SignalAndWait(); //Need to wait for task2 to complete sprint2 and proceed.
    Console.WriteLine("End of sprint 2 (task1)");
}

public static void task2()
{
    Console.WriteLine("Start of sprint 1 (task2)");
    Thread.Sleep(2000);
    barrier.SignalAndWait();
    Console.WriteLine("End of sprint 1 (task2)");

    Console.WriteLine("Start of sprint 2 (task2)");
    Thread.Sleep(2000);
    barrier.SignalAndWait();
    Console.WriteLine("End of sprint 2 (task2)");   
}