Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Workflow.Runtime/Hosting/WorkflowTransactionService.cs

@@ -0,0 +1,61 @@
+//------------------------------------------------------------------------------
+// <copyright file="WorkflowTransactionService.cs" company="Microsoft">
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+
+#region Using directives
+
+using System;
+using System.Transactions;
+
+#endregion
+
+namespace System.Workflow.Runtime.Hosting
+{
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public abstract class WorkflowCommitWorkBatchService : WorkflowRuntimeService
+    {
+        public delegate void CommitWorkBatchCallback();
+
+        virtual internal protected void CommitWorkBatch(CommitWorkBatchCallback commitWorkBatchCallback)
+        {
+            Transaction tx = null;
+            if (null == Transaction.Current)
+                tx = new CommittableTransaction();
+            else
+                tx = Transaction.Current.DependentClone(DependentCloneOption.BlockCommitUntilComplete);
+
+            try
+            {
+                using (TransactionScope ts = new TransactionScope(tx))
+                {
+                    commitWorkBatchCallback();
+                    ts.Complete();
+                }
+
+                CommittableTransaction committableTransaction = tx as CommittableTransaction;
+                if (committableTransaction != null)
+                    committableTransaction.Commit();
+
+                DependentTransaction dependentTransaction = tx as DependentTransaction;
+                if (dependentTransaction != null)
+                    dependentTransaction.Complete();
+            }
+            catch (Exception e)
+            {
+                tx.Rollback(e);
+                throw;
+            }
+            finally
+            {
+                if (tx != null)
+                {
+                    tx.Dispose();
+                }
+            }
+        }
+    }
+}
+