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Assets/BestHTTP/Caching/HTTPCacheFileLock.cs

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+#if !BESTHTTP_DISABLE_CACHING && (!UNITY_WEBGL || UNITY_EDITOR)
+
+using System;
+using System.Collections.Generic;
+
+namespace BestHTTP.Caching
+{
+    sealed class HTTPCacheFileLock
+    {
+        private static Dictionary<Uri, object> FileLocks = new Dictionary<Uri, object>();
+        private static object SyncRoot = new object();
+
+        internal static object Acquire(Uri uri)
+        {
+            lock (SyncRoot)
+            {
+                object fileLock;
+                if (!FileLocks.TryGetValue(uri, out fileLock))
+                    FileLocks.Add(uri, fileLock = new object());
+
+                return fileLock;
+            }
+        }
+
+        internal static void Remove(Uri uri)
+        {
+            lock (SyncRoot)
+            {
+                if (FileLocks.ContainsKey(uri))
+                    FileLocks.Remove(uri);
+            }
+        }
+
+        internal static void Clear()
+        {
+            lock (SyncRoot)
+            {
+                FileLocks.Clear();
+            }
+        }
+    }
+}
+
+#endif