chore: import upstream snapshot with attribution

2026-07-13 13:02:50 +08:00
commit 0fc60fdcb1
5008 changed files with 910633 additions and 0 deletions
@@ -0,0 +1,70 @@
+/*
+ * QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
+ * Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+*/
+
+using System;
+using QuantConnect.Logging;
+
+namespace QuantConnect.Util
+{
+    /// <summary>
+    /// Provides extensions methods for <see cref="IDisposable"/>
+    /// </summary>
+    public static class DisposableExtensions
+    {
+        /// <summary>
+        /// Calls <see cref="IDisposable.Dispose"/> within a try/catch and logs any errors.
+        /// </summary>
+        /// <param name="disposable">The <see cref="IDisposable"/> to be disposed</param>
+        /// <returns>True if the object was successfully disposed, false if an error was thrown</returns>
+        public static bool DisposeSafely(this IDisposable disposable)
+        {
+            return disposable.DisposeSafely(error => Log.Error(error));
+        }
+
+        /// <summary>
+        /// Calls <see cref="IDisposable.Dispose"/> within a try/catch and invokes the
+        /// <paramref name="errorHandler"/> on any errors.
+        /// </summary>
+        /// <param name="disposable">The <see cref="IDisposable"/> to be disposed</param>
+        /// <param name="errorHandler">Error handler delegate invoked if an exception is thrown
+        /// while calling <see cref="IDisposable.Dispose"/></param> on <paramref name="disposable"/>
+        /// <returns>True if the object was successfully disposed, false if an error was thrown or
+        /// the specified disposable was null</returns>
+        public static bool DisposeSafely(this IDisposable disposable, Action<Exception> errorHandler)
+        {
+            if (disposable == null)
+            {
+                return false;
+            }
+
+            try
+            {
+                disposable.Dispose();
+                return true;
+            }
+            catch (ObjectDisposedException)
+            {
+                // we got what we wanted, the object has been disposed
+                return true;
+            }
+            catch (Exception error)
+            {
+                errorHandler(error);
+                return false;
+            }
+        }
+    }
+}