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// **********************************************************************
//
// Copyright (c) 2003-2014 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef OBSERVERS_H
#define OBSERVERS_H
#include <Ice/Ice.h>
#include <IceUtil/IceUtil.h>
#include <IceStorm/Election.h>
#include <IceStorm/Replica.h>
#ifdef __SUNPRO_CC
# pragma error_messages(off,hidef)
#endif
namespace IceStorm
{
class Instance;
typedef IceUtil::Handle<Instance> InstancePtr;
class TraceLevels;
typedef IceUtil::Handle<TraceLevels> TraceLevelsPtr;
}
namespace IceStormElection
{
class Observers : public IceUtil::Shared, public IceUtil::Mutex
{
public:
Observers(const IceStorm::InstancePtr&);
void setMajority(unsigned int);
// Check that we have enough nodes for replication.
bool check();
void clear();
void init(const std::set<IceStormElection::GroupNodeInfo>&, const LogUpdate&, const TopicContentSeq&);
void createTopic(const LogUpdate&, const std::string&);
void destroyTopic(const LogUpdate&, const std::string&);
void addSubscriber(const LogUpdate&, const std::string&, const IceStorm::SubscriberRecord&);
void removeSubscriber(const LogUpdate&, const std::string&, const Ice::IdentitySeq&);
void getReapedSlaves(std::vector<int>&);
private:
void wait(const std::string&);
const IceStorm::TraceLevelsPtr _traceLevels;
unsigned int _majority;
struct ObserverInfo
{
ObserverInfo(int i, const ReplicaObserverPrx& o) :
id(i), observer(o) {}
int id;
ReplicaObserverPrx observer;
::Ice::AsyncResultPtr result;
};
std::vector<ObserverInfo> _observers;
IceUtil::Mutex _reapedMutex;
std::vector<int> _reaped;
};
typedef IceUtil::Handle<Observers> ObserversPtr;
}
#ifdef __SUNPRO_CC
# pragma error_messages(default,hidef)
#endif
#endif // OBSERVERS_H
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