C#并行库Parallel类介绍

Parallel.Invoke( params Action[] actions);
Parallel.Invoke(Action[] actions,TaskManager manager,TaskCreationOptions options);

static void Main(string[] args)
{
    var actions = new Action[]{
        () => ActionTest("test 1"),
        () => ActionTest("test 2"),
        () => ActionTest("test 3"),
        () => ActionTest("test 4")};

    Console.WriteLine("Parallel.Invoke 1 Test");
    Parallel.Invoke(actions);

    Console.WriteLine();

    Console.WriteLine("Parallel.Invoke 2 Test");
    Parallel.Invoke(actions, new TaskManager(new TaskManagerPolicy(1, 1, 2)), TaskCreationOptions.None);
}

static void ActionTest(object value)
{
    Console.WriteLine(">>> thread:{0}, value:{1}",
    Thread.CurrentThread.ManagedThreadId, value);
}

static void Main(string[] args)
{
    var data = new object[] { "test 1", "test 2", "test 3" };

    Console.WriteLine("Parallel.ForEach Test");
    Parallel.ForEach(data, item => ActionTest(item));

    Console.WriteLine();

    Console.WriteLine("Parallel.For Test");
    Parallel.For(0, data.Length, index => ActionTest(data[index]));
}

public static class ParallelExtend
{
    public static void ParallelForEach<T>(this IEnumerable<T> source, Action<T> hanlder)
    {
        Parallel.ForEach(source, hanlder);
    }

    public static void ParallelForEach<T>(this IEnumerable<T> source, Action<T> hanlder, TaskManagerPolicy policy)
    {
        using (var manager = new TaskManager(policy))
        {
            Parallel.ForEach(source,
                () => 0,
                (item, index, state) => hanlder(item),
                local => { },
                manager,
                TaskCreationOptions.None);
        }
    }
}