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// **********************************************************************
//
// Copyright (c) 2001
// Mutable Realms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
#ifndef ICE_HANDLE_H
#define ICE_HANDLE_H
#include <IceUtil/Handle.h>
#include <Ice/Config.h>
//
// "Handle" or "smart pointer" class for classes derived from
// IceUtil::Shared or IceUtil::SimpleShared.
//
// In constrast to IceUtil::Handle, IceInternal::Handle requires the
// declaration of the two global operations IceInternal::incRef(T*)
// and IceInternal::decRef(T*). The use of global operations allows
// this template to be used for types which are declared but not
// defined, provided that the two above mentioned operations are
// declared.
//
namespace IceInternal
{
template<typename T>
class Handle : public ::IceUtil::HandleBase<T>
{
public:
Handle(T* p = 0)
{
_ptr = p;
if(_ptr)
{
incRef(_ptr);
}
}
template<typename Y>
Handle(const Handle<Y>& r)
{
_ptr = r._ptr;
if(_ptr)
{
incRef(_ptr);
}
}
template<typename Y>
Handle(const ::IceUtil::Handle<Y>& r)
{
_ptr = r._ptr;
if(_ptr)
{
incRef(_ptr);
}
}
#ifdef _WIN32 // COMPILERBUG: Is VC++ or GNU C++ right here???
template<>
Handle(const Handle<T>& r)
#else
Handle(const Handle& r)
#endif
{
_ptr = r._ptr;
if(_ptr)
{
incRef(_ptr);
}
}
~Handle()
{
if(_ptr)
{
decRef(_ptr);
}
}
Handle& operator=(T* p)
{
if(_ptr != p)
{
if(p)
{
incRef(p);
}
if(_ptr)
{
decRef(_ptr);
}
_ptr = p;
}
return *this;
}
template<typename Y>
Handle& operator=(const Handle<Y>& r)
{
if(_ptr != r._ptr)
{
if(r._ptr)
{
incRef(r._ptr);
}
if(_ptr)
{
decRef(_ptr);
}
_ptr = r._ptr;
}
return *this;
}
template<typename Y>
Handle& operator=(const ::IceUtil::Handle<Y>& r)
{
if(_ptr != r._ptr)
{
if(r._ptr)
{
incRef(r._ptr);
}
if(_ptr)
{
decRef(_ptr);
}
_ptr = r._ptr;
}
return *this;
}
#ifdef _WIN32 // COMPILERBUG: Is VC++ or GNU C++ right here???
template<>
Handle& operator=(const Handle<T>& r)
#else
Handle& operator=(const Handle& r)
#endif
{
if(_ptr != r._ptr)
{
if(r._ptr)
{
incRef(r._ptr);
}
if(_ptr)
{
decRef(_ptr);
}
_ptr = r._ptr;
}
return *this;
}
template<class Y>
static Handle dynamicCast(const ::IceUtil::HandleBase<Y>& r)
{
return Handle(dynamic_cast<T*>(r._ptr));
}
template<class Y>
static Handle dynamicCast(Y* p)
{
return Handle(dynamic_cast<T*>(p));
}
};
}
#endif
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