Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Runtime.DurableInstancing/System/Runtime/TransactionHelper.cs

@@ -0,0 +1,67 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//-----------------------------------------------------------------------------
+namespace System.Runtime
+{
+    using System;
+    using System.Transactions;
+
+    static class TransactionHelper
+    {
+        public static void ThrowIfTransactionAbortedOrInDoubt(Transaction transaction)
+        {
+            if (transaction == null)
+            {
+                return;
+            }
+
+            if (transaction.TransactionInformation.Status == TransactionStatus.Aborted || transaction.TransactionInformation.Status == TransactionStatus.InDoubt)
+            {
+                //This will throw TransactionAbortedException/TransactionInDoubtException with corresponding inner exception if any
+                using (TransactionScope scope = new TransactionScope(transaction))
+                {
+                    //empty
+                }
+            }
+        }
+
+        // If the transaction has aborted then we switch over to a new transaction
+        // which we will immediately abort after setting Transaction.Current
+        public static TransactionScope CreateTransactionScope(Transaction transaction)
+        {
+            try
+            {
+                return transaction == null ? null : new TransactionScope(transaction);
+            }
+            catch (TransactionAbortedException)
+            {
+                CommittableTransaction tempTransaction = new CommittableTransaction();
+                try
+                {
+                    return new TransactionScope(tempTransaction.Clone());
+                }
+                finally
+                {
+                    tempTransaction.Rollback();
+                }
+            }
+        }
+
+        public static void CompleteTransactionScope(ref TransactionScope scope)
+        {
+            TransactionScope localScope = scope;
+            if (localScope != null)
+            {
+                scope = null;
+                try
+                {
+                    localScope.Complete();
+                }
+                finally
+                {
+                    localScope.Dispose();
+                }
+            }
+        }
+    }
+}