异步读取AssetBundle文件，增加文件锁定，检查游戏是否需要更新，不存在的游戏 ， 也返回更新

Author: wanderer

GameFramework/Runtime/Resource/BundleAssetsHelper.cs

@@ -49,6 +49,12 @@ public List<string> AllAssetPaths
                 return _allAssetPaths;
             }
         }
+        /// <summary>
+        /// 预加载的所有资源
+        /// </summary>
+        private Dictionary<string, Object> _preloadAssets = new Dictionary<string, Object>();
+        //异步加载锁定的文件
+        private HashSet<string> _asyncLockFiles = new HashSet<string>();
 
         /// <summary>
         /// 设置资源准备
@@ -84,10 +90,7 @@ public void SetResource(Action callback)
             StartCoroutine(LoadPlatformMainfest(_readPath, callback));
         }
 
-        /// <summary>
-        /// 预加载的所有资源
-        /// </summary>
-        private Dictionary<string, Object> _preloadAssets = new Dictionary<string, Object>();
+    
 
         /// <summary>
         /// 资源预加载
@@ -427,16 +430,19 @@ private IEnumerator LoadAssetBundleFromPathAsync(string path, Action<AssetBundle
             if (!File.Exists(path))
                 throw new GameException("Assetbundle not found :" + path);
 
-            using (Stream abStream = _isEncrypt ? new EncryptFileStream(path, FileMode.Open, FileAccess.Read, FileShare.None, 1024 * 4, false) : new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.None, 1024 * 4, false))
+            if (_asyncLockFiles.Contains(path))
             {
-                while (!abStream.CanRead)
+                string fileName = Path.GetFileNameWithoutExtension(path);
+                while (!_liveAssetBundle.ContainsKey(fileName))
                 {
                     yield return null;
                 }
-                string fileName = Path.GetFileNameWithoutExtension(path);
-                yield return null;
-                AssetBundle assetBundle;
-                if (!_liveAssetBundle.TryGetValue(fileName, out assetBundle))
+                callback.Invoke(_liveAssetBundle[fileName]);
+            }
+            else
+            {
+                _asyncLockFiles.Add(path);
+                using (Stream abStream = _isEncrypt ? new EncryptFileStream(path, FileMode.Open, FileAccess.Read, FileShare.None, 1024 * 4, false) : new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.None, 1024 * 4, false))
                 {
                     float loadTime = Time.realtimeSinceStartup;
                     var ablfsa = AssetBundle.LoadFromStreamAsync(abStream);
@@ -448,9 +454,10 @@ private IEnumerator LoadAssetBundleFromPathAsync(string path, Action<AssetBundle
                     yield return null;
                     loadTime = Time.realtimeSinceStartup - loadTime;
                     Debug.Log($"LoadAssetBundleFromPath Async time spent: {loadTime} {path} ");
-                    assetBundle = ablfsa.assetBundle;
+                    callback?.Invoke(ablfsa.assetBundle);
                 }
-                callback?.Invoke(assetBundle);
+                yield return null;
+                _asyncLockFiles.Remove(path);
             }
         }
         #endregion

GameFramework/Runtime/Resource/ResourceVersion.cs

@@ -194,7 +194,7 @@ public bool UpdateResource(Action<float, double, double, float> callback, Action
         /// 检查某一个资源是否需要更新
         /// </summary>
         /// <param name="name"></param>
-        /// <param name="callback"></param>
+        /// <param name="callback">[本地是否存在文件，是否需要更新]</param>
         public async void CheckResource(string name, Action<bool,bool> callback)
         {
 
@@ -214,7 +214,8 @@ public async void CheckResource(string name, Action<bool,bool> callback)
             }
             else
             {
-                throw new GameException($"There is no corresponding resource on the resource server: {name}");
+                callback?.Invoke(false, true);
+                //throw new GameException($"There is no corresponding resource on the resource server: {name}");
             }
         }