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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 ICEGRID_REAPER_THREAD_H
#define ICEGRID_REAPER_THREAD_H
#include <IceUtil/Thread.h>
#include <IceUtil/Mutex.h>
#include <IceUtil/Monitor.h>
#include <Ice/Logger.h>
#include <Ice/LocalException.h>
#include <Ice/LoggerUtil.h>
#include <Ice/Connection.h>
#include <list>
namespace IceGrid
{
class Reapable : public Ice::LocalObject
{
public:
virtual ~Reapable() { }
virtual void heartbeat() const { };
virtual IceUtil::Time timestamp() const = 0;
virtual void destroy(bool) = 0;
};
typedef IceUtil::Handle<Reapable> ReapablePtr;
template<class T>
class SessionReapable : public Reapable
{
typedef IceUtil::Handle<T> TPtr;
public:
SessionReapable(const Ice::LoggerPtr& logger, const TPtr& session) :
_logger(logger), _session(session)
{
}
virtual ~SessionReapable()
{
}
virtual IceUtil::Time
timestamp() const
{
return _session->timestamp();
}
virtual void
destroy(bool shutdown)
{
try
{
if(shutdown)
{
_session->shutdown();
}
else
{
_session->destroy(Ice::Current());
}
}
catch(const Ice::ObjectNotExistException&)
{
}
catch(const Ice::LocalException& ex)
{
Ice::Warning out(_logger);
out << "unexpected exception while reaping session:\n" << ex;
}
}
protected:
const Ice::LoggerPtr _logger;
const TPtr _session;
};
template<class T>
class SessionReapableWithHeartbeat : public SessionReapable<T>
{
typedef IceUtil::Handle<T> TPtr;
public:
SessionReapableWithHeartbeat(const Ice::LoggerPtr& logger, const TPtr& session) :
SessionReapable<T>(logger, session)
{
}
virtual void
heartbeat() const
{
try
{
SessionReapable<T>::_session->keepAlive(Ice::Current());
}
catch(Ice::Exception&)
{
}
}
};
class ReapThread : public IceUtil::Thread, public IceUtil::Monitor<IceUtil::Mutex>
{
public:
ReapThread();
virtual void run();
void terminate();
void add(const ReapablePtr&, int, const Ice::ConnectionPtr& = Ice::ConnectionPtr());
void connectionHeartbeat(const Ice::ConnectionPtr&);
void connectionClosed(const Ice::ConnectionPtr&);
private:
bool calcWakeInterval();
Ice::ConnectionCallbackPtr _callback;
IceUtil::Time _wakeInterval;
bool _terminated;
struct ReapableItem
{
ReapablePtr item;
Ice::ConnectionPtr connection;
IceUtil::Time timeout;
};
std::list<ReapableItem> _sessions;
std::map<Ice::ConnectionPtr, std::set<ReapablePtr> > _connections;
};
typedef IceUtil::Handle<ReapThread> ReapThreadPtr;
};
#endif
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