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#ifndef QPID_CLUSTER_MULTICASTER_H
#define QPID_CLUSTER_MULTICASTER_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 "types.h"
#include "Event.h"
#include "qpid/sys/PollableQueue.h"
#include "qpid/sys/Mutex.h"
#include <boost/shared_ptr.hpp>
namespace qpid {
namespace sys {
class Poller;
}
namespace cluster {
class Cpg;
/**
* Multicast to the cluster. Shared, thread safe object.
*/
class Multicaster
{
public:
/** Starts in holding mode: connection data events are held, other events are mcast */
Multicaster(Cpg& cpg_,
const boost::shared_ptr<sys::Poller>&,
boost::function<void()> onError
);
void mcastControl(const framing::AMQBody& controlBody, const ConnectionId&);
void mcastControl(const framing::AMQFrame& controlFrame, const ConnectionId&);
void mcastBuffer(const char*, size_t, const ConnectionId&);
void mcast(const Event& e);
/** End holding mode, held events are mcast */
void release();
/** Call when events are self-delivered to manage flow control. */
void selfDeliver(const Event&);
private:
typedef sys::PollableQueue<Event> PollableEventQueue;
typedef std::deque<Event> PlainEventQueue;
void sendMcast(PollableEventQueue::Queue& );
sys::Mutex lock;
boost::function<void()> onError;
Cpg& cpg;
PollableEventQueue queue;
bool holding;
PlainEventQueue holdingQueue;
std::vector<struct ::iovec> ioVector;
};
}} // namespace qpid::cluster
#endif /*!QPID_CLUSTER_MULTICASTER_H*/
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