82 lines
1.5 KiB
C#
82 lines
1.5 KiB
C#
using System;
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using UnityEngine;
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using System.Collections.Generic;
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using System.Threading;
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namespace AssemblyCSharp
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{
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public class UnityDispatcher:MonoBehaviour
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{
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//Singletion
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private UnityDispatcher _current;
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public static UnityDispatcher Current {
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get;
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private set;
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}
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private int _lock;
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private bool _run;
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private Queue<Action> _wait;
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public void BeginInvoke(Action action){
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while (true) {
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//以原子操作的形式，将 32 位有符号整数设置为指定的值并返回原始值。
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if (0 == Interlocked.Exchange (ref _lock, 1)) {
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//acquire lock
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_wait.Enqueue(action);
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_run = true;
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//exist
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Interlocked.Exchange (ref _lock,0);
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break;
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}
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}
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}
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void Awake(){
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if (Current != null) {
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Destroy (Current);
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}
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Current = this;
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_wait = new Queue<Action> ();
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}
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void Update(){
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if (_run) {
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Queue<Action> execute = null;
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//主线程不推荐使用lock关键字，防止block 线程，以至于deadlock
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if (0 == Interlocked.Exchange (ref _lock, 1)) {
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execute = new Queue<Action>(_wait.Count);
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while(_wait.Count!=0){
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Action action = _wait.Dequeue ();
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execute.Enqueue (action);
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}
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//finished
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_run=false;
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//release
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Interlocked.Exchange (ref _lock,0);
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}
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//not block
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if (execute != null) {
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while (execute.Count != 0) {
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Action action = execute.Dequeue ();
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action ();
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}
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}
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}
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}
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}
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}
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