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// **********************************************************************
//
// Copyright (c) 2003
// ZeroC, Inc.
// Billerica, MA, USA
//
// All Rights Reserved.
//
// Ice is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License version 2 as published by
// the Free Software Foundation.
//
// **********************************************************************
#ifndef ICE_UTIL_GC_SHARED_H
#define ICE_UTIL_GC_SHARED_H
#include <IceUtil/Config.h>
#include <IceUtil/GCRecMutex.h>
#include <set>
namespace IceUtil
{
class GC;
class GCShared;
typedef std::set<GCShared*> GCObjectSet;
extern ICE_UTIL_API GCObjectSet gcObjects; // Set of pointers to all existing classes with class data members.
typedef std::multiset<GCShared*> GCObjectMultiSet;
class ICE_UTIL_API GCShared : public noncopyable
{
public:
GCShared() : _ref(0), _noDelete(false) {}
virtual ~GCShared() {}
virtual void __incRef(); // First derived class with class data members overrides this.
virtual void __decRef(); // Ditto.
int __getRef() const;
void __setNoDelete(bool);
void __decRefUnsafe() { --_ref; }
virtual void __gcReachable(GCObjectMultiSet&) const = 0;
virtual void __gcClear() = 0;
protected:
static void __addObject(GCObjectMultiSet&, GCShared*);
int _ref;
bool _noDelete;
friend class IceUtil::GC; // Allows IceUtil::GC to read value of _ref.
};
}
#endif
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