update file system

Assets/YooAsset/Runtime/FileSystem/CacheSystem/ThreadSyncContext.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections;
+using System.Collections.Concurrent;
+using System.Threading;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// 同步其它线程里的回调到主线程里
+    /// 注意：Unity3D中需要设置Scripting Runtime Version为.NET4.6
+    /// </summary>
+    internal sealed class ThreadSyncContext : SynchronizationContext
+    {
+        private readonly ConcurrentQueue<Action> _safeQueue = new ConcurrentQueue<Action>();
+
+        /// <summary>
+        /// 更新同步队列
+        /// </summary>
+        public void Update()
+        {
+            while (true)
+            {
+                if (_safeQueue.TryDequeue(out Action action) == false)
+                    return;
+                action.Invoke();
+            }
+        }
+
+        /// <summary>
+        /// 向同步队列里投递一个回调方法
+        /// </summary>
+        public override void Post(SendOrPostCallback callback, object state)
+        {
+            Action action = new Action(() => { callback(state); });
+            _safeQueue.Enqueue(action);
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/CacheSystem/ThreadSyncContext.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 1c8ce2c52a3e9964fa50a9c031e4e593
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: