GPBase&
GPBase::assign (GPEnabled *nptr)
{
if (nptr && atomicIncrement(&nptr->count) <= 0)
nptr = 0;
GPEnabled *optr = (GPEnabled*)atomicExchangePointer((void**)&ptr, (void*)nptr);
if (optr)
optr->unref();
return *this;
}
GPBase&
GPBase::assign (GPEnabled *nptr)
{
if (nptr)
nptr->ref();
int volatile *locka = locks+LOCKIDX(this);
atomicAcquireOrSpin(locka);
GPEnabled *old = ptr;
ptr = nptr;
atomicRelease(locka);
if (old)
old->unref();
return *this;
}
