繁体   English   中英

C# - 具有不同最大/最小线程的Linq MultiThreading?

[英]C# - Linq MultiThreading with varying Max/Min Threads?

ThreadPool.SetMinThreads(50, 50);
ServicePointManager.MaxServicePointIdleTime = 8000;
ServicePointManager.DefaultConnectionLimit = 50;

List<Match> Combos = new Regex("^(.{5,}):(.{6,})$", RegexOptions.Multiline).Matches(File.ReadAllText(ofd.FileNames[0])).OfType<Match>().ToList();
var query = Combos.ToObservable().SelectMany(s => Observable.Start(() => new
{
    grab = checkall(s.Groups[1].Value.Replace("\n", "").Replace("\r", ""), s.Groups[2].Value.Replace("\n", "").Replace("\r", ""))
})).ObserveOn(this).Do(x =>
{
    try
    {
        TotalChecked.Text = "Tested: " + (int.Parse(TotalChecked.Text.Substring(7)) + 1).ToString();
        progressBar2.Value = (int)Math.Round((double)(100 * int.Parse(TotalChecked.Text.Substring(7))) / Combos.Count);
    }
    catch (Exception)
    {
        TotalChecked.Text = "Tested: " + (int.Parse(TotalChecked.Text.Substring(7)) + 1).ToString();
        progressBar2.Value = (int)Math.Round((double)(100 * int.Parse(TotalChecked.Text.Substring(7))) / Combos.Count);
    }
});
query.ToArray().ObserveOn(this).Subscribe(x =>
{
    CheckButton.Location = new Point(CheckButton.Location.X + 31, 9);
    CheckButton.Width -= 31;
});

上面的代码在文本文件上使用正则表达式,然后执行一个函数。 它工作正常,但现在我希望它执行多个DIFFERENT函数,并且只允许其中一些线程设置一定数量的线程。

例如:

var query = Combos.ToObservable().SelectMany(s => Observable.Start(() => new
{
    grab = checkall(s.Groups[1].Value.Replace("\n", "").Replace("\r", ""), s.Groups[2].Value.Replace("\n", "").Replace("\r", "")),
    //This one should be LIMITED to only 5 threads MAX!
    grab2 = checktwo(Hi, Hello)
}))

在上面的代码中我添加了grab2 ,它应该分配最多5个线程。

说实话,我不知道如何执行这样的方法。 任何帮助,将不胜感激。

如果你需要一些代码只由n线程执行,你需要一个信号量 ,在这种情况下SemaphoreSlim就足够了

// 5 threads to run in parallel, all 5 can start immidiately
var semaphore = new SemaphoreSlim(5, 5);

// ...

try
{
    semaphore.Wait();
    //This one should be LIMITED to only 5 threads MAX!
    grab2 = checktwo(Hi, Hello);
}
finally
{
    // ensure the release of semaphore
    semaphore.Release();
}

您甚至可以在async方法中等待它:

await semaphore.WaitAsync();

暂无
暂无

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM