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#ifndef QPID_CLUSTER_OUTPUTINTERCEPTOR_H
#define QPID_CLUSTER_OUTPUTINTERCEPTOR_H
/*
*
* 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 "WriteEstimate.h"
#include "qpid/sys/ConnectionOutputHandler.h"
#include "qpid/broker/ConnectionFactory.h"
#include "qpid/sys/LatencyMetric.h"
#include <boost/function.hpp>
namespace qpid {
namespace framing { class AMQFrame; }
namespace cluster {
class Connection;
/**
* Interceptor for connection OutputHandler, manages outgoing message replication.
*/
class OutputInterceptor : public sys::ConnectionOutputHandler, sys::LatencyMetricTimestamp {
public:
OutputInterceptor(cluster::Connection& p, sys::ConnectionOutputHandler& h);
// sys::ConnectionOutputHandler functions
void send(framing::AMQFrame& f);
void activateOutput();
void giveReadCredit(int32_t);
void close();
size_t getBuffered() const;
// Delivery point for doOutput requests.
void deliverDoOutput(size_t requested);
// Intercept doOutput requests on Connection.
bool doOutput();
void closeOutput(sys::ConnectionOutputHandler& h);
cluster::Connection& parent;
private:
typedef sys::Mutex::ScopedLock Locker;
void sendDoOutput();
mutable sys::Mutex lock;
bool closing;
sys::ConnectionOutputHandler* next;
size_t sent;
size_t lastDoOutput;
WriteEstimate writeEstimate;
bool moreOutput;
bool doingOutput;
};
}} // namespace qpid::cluster
#endif /*!QPID_CLUSTER_OUTPUTINTERCEPTOR_H*/
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