Question

我遇到UnityEngine版本的问题。（不能升级，游戏不是我的）

当计时器/线程中使用特定的UnityEngine方法时，服务器RANDOMLY崩溃（它在版本中修复，我读了它）

它完全随机发生，我得到一个崩溃日志，它从计时器/线程开始，以UnityEngine方法结束。（当我在主线程中使用它时，这种情况永远不会发生）

我的问题是，如果当前线程！=主线程，是否有可能以某种方式从主线程调用该方法？

感谢任何帮助

Answer 1

这个Loom类能够从Main线程中调用特定的方法，这就是你的工作方式：

public class Loom : MonoBehaviour
{
    public static int maxThreads = 10;
    static int numThreads;

    private static Loom _current;
    private int _count;
    public static Loom Current
    {
        get
        {
            Initialize();
            return _current;
        }
    }

    public void Awake()
    {
        _current = this;
        initialized = true;
    }

    static bool initialized;

    static void Initialize()
    {
        if (!initialized)
        {

            if (!Application.isPlaying)
                return;
            initialized = true;
            var g = new GameObject("Loom");
            _current = g.AddComponent<Loom>();
        }

    }

    private List<Action> _actions = new List<Action>();
    public struct DelayedQueueItem
    {
        public float time;
        public Action action;
    }
    private List<DelayedQueueItem> _delayed = new List<DelayedQueueItem>();

    List<DelayedQueueItem> _currentDelayed = new List<DelayedQueueItem>();

    public static void QueueOnMainThread(Action action)
    {
        QueueOnMainThread(action, 0f);
    }
    public static void QueueOnMainThread(Action action, float time)
    {
        if (time != 0)
        {
            lock (Current._delayed)
            {
                Current._delayed.Add(new DelayedQueueItem { time = Time.time + time, action = action });
            }
        }
        else
        {
            lock (Current._actions)
            {
                Current._actions.Add(action);
            }
        }
    }

    public static Thread RunAsync(Action a)
    {
        Initialize();
        while (numThreads >= maxThreads)
        {
            Thread.Sleep(1);
        }
        Interlocked.Increment(ref numThreads);
        ThreadPool.QueueUserWorkItem(RunAction, a);
        return null;
    }

    private static void RunAction(object action)
    {
        try
        {
            ((Action)action)();
        }
        catch
        {
        }
        finally
        {
            Interlocked.Decrement(ref numThreads);
        }

    }


    public void OnDisable()
    {
        if (_current == this)
        {

            _current = null;
        }
    }



    // Use this for initialization
    public void Start()
    {

    }

    List<Action> _currentActions = new List<Action>();

    // Update is called once per frame
    public void Update()
    {
        lock (_actions)
        {
            _currentActions.Clear();
            _currentActions.AddRange(_actions);
            _actions.Clear();
        }
        foreach (var a in _currentActions)
        {
            a();
        }
        lock (_delayed)
        {
            _currentDelayed.Clear();
            _currentDelayed.AddRange(_delayed.Where(d => d.time <= Time.time));
            foreach (var item in _currentDelayed)
                _delayed.Remove(item);
        }
        foreach (var delayed in _currentDelayed)
        {
            delayed.action();
        }
    }
}



//Usage
public void Call() 
{
    if (Thread.CurrentThread.ManagedThreadId != TestClass.MainThread.ManagedThreadId)
    {
        Loom.QueueOnMainThread(() => {
            Call();
        });
        return;
    }
    Console.WriteLine("Hello");
}

从主线程调用方法 - UnityEngine C＃

1 个答案: