1 files changed, 59 insertions, 0 deletions
diff --git a/cpp/src/qpid/broker/DtxAck.cpp b/cpp/src/qpid/broker/DtxAck.cpp
new file mode 100644
index 0000000000..a879abd9ab
--- /dev/null
+++ b/cpp/src/qpid/broker/DtxAck.cpp
@@ -0,0 +1,59 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ *
+ */
+#include "DtxAck.h"
+#include "qpid/log/Statement.h"
+
+using std::bind1st;
+using std::bind2nd;
+using std::mem_fun_ref;
+using namespace qpid::broker;
+
+DtxAck::DtxAck(AccumulatedAck& acked, std::list<DeliveryRecord>& unacked)
+{
+    remove_copy_if(unacked.begin(), unacked.end(), inserter(pending, pending.end()), 
+                   not1(bind2nd(mem_fun_ref(&DeliveryRecord::coveredBy), &acked)));
+    unacked.remove_if(bind2nd(mem_fun_ref(&DeliveryRecord::coveredBy), &acked));
+}
+
+bool DtxAck::prepare(TransactionContext* ctxt) throw()
+{
+    try{
+        //record dequeue in the store
+        for (ack_iterator i = pending.begin(); i != pending.end(); i++) {
+            i->discard(ctxt);
+        }
+        return true;
+    }catch(...){
+        QPID_LOG(error, "Failed to prepare");
+        return false;
+    }
+}
+
+void DtxAck::commit() throw()
+{
+    pending.clear();
+}
+
+void DtxAck::rollback() throw()
+{
+    for_each(pending.begin(), pending.end(), mem_fun_ref(&DeliveryRecord::requeue));
+    pending.clear();
+}