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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 EVICTOR_BASE_H
#define EVICTOR_BASE_H
#include <Ice/Ice.h>
#include <IceUtil/IceUtil.h>
#include <map>
#include <list>
class EvictorBase : public Ice::ServantLocator
{
public:
EvictorBase(int size = 1000);
virtual Ice::ObjectPtr locate(const Ice::Current&, Ice::LocalObjectPtr&);
virtual void finished(const Ice::Current&, const Ice::ObjectPtr&, const Ice::LocalObjectPtr&);
virtual void deactivate(const std::string&);
protected:
virtual Ice::ObjectPtr add(const Ice::Current&, Ice::LocalObjectPtr&) = 0;
virtual void evict(const Ice::ObjectPtr&, const Ice::LocalObjectPtr&) = 0;
private:
struct EvictorEntry;
typedef IceUtil::Handle<EvictorEntry> EvictorEntryPtr;
typedef std::map<Ice::Identity, EvictorEntryPtr> EvictorMap;
typedef std::list<EvictorMap::iterator> EvictorQueue;
struct EvictorEntry : public Ice::LocalObject
{
Ice::ObjectPtr servant;
Ice::LocalObjectPtr userCookie;
EvictorQueue::iterator queuePos;
int useCount;
};
EvictorMap _map;
EvictorQueue _queue;
Ice::Int _size;
IceUtil::Mutex _mutex;
void evictServants();
};
typedef IceUtil::Handle<EvictorBase> EvictorBasePtr;
#endif
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