1 files changed, 69 insertions, 0 deletions
diff --git a/cpp/src/qpid/broker/TxnBuffer.h b/cpp/src/qpid/broker/TxnBuffer.h
new file mode 100644
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+++ b/cpp/src/qpid/broker/TxnBuffer.h
@@ -0,0 +1,69 @@
+/*
+ * 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.
+ */
+
+/**
+ * \file TxnBuffer.h
+ */
+
+#ifndef qpid_broker_TxnBuffer_h_
+#define qpid_broker_TxnBuffer_h_
+
+#include "TxnHandle.h"
+
+//#include <boost/enable_shared_from_this.hpp>
+#include <boost/shared_ptr.hpp>
+#include <vector>
+
+namespace qpid {
+namespace broker {
+
+class AsyncResultHandle;
+class AsyncResultQueue;
+class AsyncTransactionalStore;
+class TxnOp;
+
+class TxnBuffer /*: public boost::enable_shared_from_this<TxnBuffer>*/ {
+public:
+    TxnBuffer(AsyncResultQueue& arq);
+    virtual ~TxnBuffer();
+
+    void enlist(boost::shared_ptr<TxnOp> op);
+    bool prepare(TxnHandle& th);
+    void commit();
+    void rollback();
+    bool commitLocal(AsyncTransactionalStore* const store);
+
+    // --- Async operations ---
+    static void handleAsyncResult(const AsyncResultHandle* const arh);
+    void asyncLocalCommit();
+    void asyncLocalAbort();
+
+private:
+    std::vector<boost::shared_ptr<TxnOp> > m_ops;
+    TxnHandle m_txnHandle;
+    AsyncTransactionalStore* m_store;
+    AsyncResultQueue& m_resultQueue;
+
+    typedef enum {NONE = 0, PREPARE, COMMIT, ROLLBACK, COMPLETE} e_txnState;
+    e_txnState m_state;
+};
+
+}} // namespace qpid::broker
+
+#endif // qpid_broker_TxnBuffer_h_