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// **********************************************************************
//
// Copyright (c) 2001
// MutableRealms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
#ifndef ICE_UTIL_SHARED_H
#define ICE_UTIL_SHARED_H
#include <IceUtil/Config.h>
//
// Base classes for reference counted types. The IceUtil::Handle
// template can be used for smart pointers to types derived from these
// bases.
//
// IceUtil::SimpleShared
// =====================
//
// A non thread-safe base class for reference-counted types.
//
// IceUtil::Shared
// ===============
//
// A thread-safe base class for reference-counted types.
//
namespace IceUtil
{
class SimpleShared : public noncopyable
{
public:
SimpleShared() :
_ref(0),
_noDelete(false)
{
}
virtual ~SimpleShared()
{
}
void __incRef()
{
assert(_ref >= 0);
++_ref;
}
void __decRef()
{
assert(_ref > 0);
if (--_ref == 0)
{
if(!_noDelete)
{
delete this;
}
}
}
int __getRef()
{
return _ref;
}
void __setNoDelete(bool b)
{
_noDelete = b;
}
private:
int _ref;
bool _noDelete;
};
class Shared : public noncopyable
{
public:
Shared() :
_ref(0),
_noDelete(false)
{
}
virtual ~Shared()
{
}
void __incRef()
{
_mutex.lock();
assert(_ref >= 0);
++_ref;
_mutex.unlock();
}
void __decRef()
{
_mutex.lock();
bool doDelete = false;
assert(_ref > 0);
if (--_ref == 0)
{
doDelete = !_noDelete;
}
_mutex.unlock();
if (doDelete)
{
delete this;
}
}
int __getRef()
{
_mutex.lock();
int ref = _ref;
_mutex.unlock();
return ref;
}
void __setNoDelete(bool b)
{
_mutex.lock();
_noDelete = b;
_mutex.unlock();
}
private:
int _ref;
bool _noDelete;
JTCMutex _mutex;
};
}
#endif
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