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#ifndef ADHOC_INTRUSIVEPTRBASE_H
#define ADHOC_INTRUSIVEPTRBASE_H
#include <boost/intrusive_ptr.hpp>
class IntrusivePtrBase {
protected:
inline IntrusivePtrBase() : _refCount(0) { }
inline virtual ~IntrusivePtrBase() = 0;
mutable unsigned int _refCount;
friend void intrusive_ptr_release(const IntrusivePtrBase * p);
friend void intrusive_ptr_add_ref(const IntrusivePtrBase * p);
private:
IntrusivePtrBase(const IntrusivePtrBase &) = delete;
void operator=(const IntrusivePtrBase &) = delete;
};
inline
IntrusivePtrBase::~IntrusivePtrBase() = default;
inline
void
intrusive_ptr_release(const IntrusivePtrBase * p)
{
if (p->_refCount == 1) {
delete p;
}
else {
p->_refCount -= 1;
}
}
inline
void
intrusive_ptr_add_ref(const IntrusivePtrBase * p)
{
p->_refCount += 1;
}
#endif
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