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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.
*/
#ifndef _THRIFT_TCONCURRENTCLIENTSYNCINFO_H_
#define _THRIFT_TCONCURRENTCLIENTSYNCINFO_H_ 1
#include <thrift/protocol/TProtocol.h>
#include <thrift/concurrency/Mutex.h>
#include <thrift/concurrency/Monitor.h>
#include <boost/shared_ptr.hpp>
#include <vector>
#include <string>
#include <map>
namespace apache {
namespace thrift {
namespace async {
class TConcurrentClientSyncInfo;
class TConcurrentSendSentry {
public:
explicit TConcurrentSendSentry(TConcurrentClientSyncInfo* sync);
~TConcurrentSendSentry();
void commit();
private:
TConcurrentClientSyncInfo& sync_;
bool committed_;
};
class TConcurrentRecvSentry {
public:
TConcurrentRecvSentry(TConcurrentClientSyncInfo* sync, int32_t seqid);
~TConcurrentRecvSentry();
void commit();
private:
TConcurrentClientSyncInfo& sync_;
int32_t seqid_;
bool committed_;
};
class TConcurrentClientSyncInfo {
private: // typedefs
typedef boost::shared_ptr< ::apache::thrift::concurrency::Monitor> MonitorPtr;
typedef std::map<int32_t, MonitorPtr> MonitorMap;
public:
TConcurrentClientSyncInfo();
int32_t generateSeqId();
bool getPending(std::string& fname,
::apache::thrift::protocol::TMessageType& mtype,
int32_t& rseqid); /* requires readMutex_ */
void updatePending(const std::string& fname,
::apache::thrift::protocol::TMessageType mtype,
int32_t rseqid); /* requires readMutex_ */
void waitForWork(int32_t seqid); /* requires readMutex_ */
::apache::thrift::concurrency::Mutex& getReadMutex() { return readMutex_; }
::apache::thrift::concurrency::Mutex& getWriteMutex() { return writeMutex_; }
private: // constants
enum { MONITOR_CACHE_SIZE = 10 };
private: // functions
MonitorPtr newMonitor_(
const ::apache::thrift::concurrency::Guard& seqidGuard); /* requires seqidMutex_ */
void deleteMonitor_(const ::apache::thrift::concurrency::Guard& seqidGuard, MonitorPtr& m);
/*noexcept*/ /* requires seqidMutex_ */
void wakeupAnyone_(
const ::apache::thrift::concurrency::Guard& seqidGuard); /* requires seqidMutex_ */
void markBad_(const ::apache::thrift::concurrency::Guard& seqidGuard); /* requires seqidMutex_ */
void throwBadSeqId_();
void throwDeadConnection_();
private: // data members
volatile bool stop_;
::apache::thrift::concurrency::Mutex seqidMutex_;
// begin seqidMutex_ protected members
int32_t nextseqid_;
MonitorMap seqidToMonitorMap_;
std::vector<MonitorPtr> freeMonitors_;
// end seqidMutex_ protected members
::apache::thrift::concurrency::Mutex writeMutex_;
::apache::thrift::concurrency::Mutex readMutex_;
// begin readMutex_ protected members
bool recvPending_;
bool wakeupSomeone_;
int32_t seqidPending_;
std::string fnamePending_;
::apache::thrift::protocol::TMessageType mtypePending_;
// end readMutex_ protected members
friend class TConcurrentSendSentry;
friend class TConcurrentRecvSentry;
};
}
}
} // apache::thrift::async
#endif // _THRIFT_TCONCURRENTCLIENTSYNCINFO_H_
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