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/*
* 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 SimpleTxnBuffer.h
*/
#ifndef qpid_broker_SimpleTxnBuffer_h_
#define qpid_broker_SimpleTxnBuffer_h_
#include "qpid/broker/TxnHandle.h"
#include "qpid/sys/Mutex.h"
#include <boost/shared_ptr.hpp>
#include <vector>
namespace qpid {
namespace broker {
class AsyncResultHandle;
class AsyncResultQueue;
class AsyncTransactionalStore;
class SimpleTxnOp;
class SimpleTxnBuffer {
public:
SimpleTxnBuffer(AsyncResultQueue& arq);
SimpleTxnBuffer(AsyncResultQueue& arq, std::string& xid);
virtual ~SimpleTxnBuffer();
TxnHandle& getTxnHandle();
const std::string& getXid() const;
bool is2pc() const;
void incrOpCnt();
void decrOpCnt();
void enlist(boost::shared_ptr<SimpleTxnOp> op);
bool prepare();
void commit();
void rollback();
bool commitLocal(AsyncTransactionalStore* const store);
// --- Async operations ---
void asyncLocalCommit();
static void handleAsyncCommitResult(const AsyncResultHandle* const arh);
void asyncLocalAbort();
static void handleAsyncAbortResult(const AsyncResultHandle* const arh);
private:
mutable qpid::sys::Mutex m_opsMutex;
mutable qpid::sys::Mutex m_submitOpCntMutex;
mutable qpid::sys::Mutex m_completeOpCntMutex;
static qpid::sys::Mutex s_uuidMutex;
std::vector<boost::shared_ptr<SimpleTxnOp> > m_ops;
TxnHandle m_txnHandle;
AsyncTransactionalStore* m_store;
AsyncResultQueue& m_resultQueue;
std::string m_xid;
bool m_tpcFlag;
uint32_t m_submitOpCnt;
uint32_t m_completeOpCnt;
typedef enum {NONE = 0, PREPARE, COMMIT, ROLLBACK, COMPLETE} e_txnState;
e_txnState m_state;
uint32_t getNumOps() const;
void createLocalXid();
};
}} // namespace qpid::broker
#endif // qpid_broker_SimpleTxnBuffer_h_
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