profWriteExtra     profIndex = 1 << 33 // overflow or eof waiting
)

func (x *profAtomic) load() profIndex {
	return profIndex(atomic.Load64((*uint64)(x)))
}

func (x *profAtomic) store(new profIndex) {
	atomic.Store64((*uint64)(x), uint64(new))
}

func (x *profAtomic) cas(old, new profIndex) bool {
	return atomic.Cas64((*uint64)(x), uint64(old), uint64(new))
}

func (x profIndex) dataCount() uint32 {

	rmIndex           ID = 587
	rmCHIndex         ID = 588
	rnIndex           ID = 589
	rnBIIndex         ID = 590
	roIndex           ID = 591
	roMDIndex         ID = 592
	roROIndex         ID = 593
	rofIndex          ID = 594
	rofTZIndex        ID = 595
	ruIndex           ID = 596
	ruBYIndex         ID = 597
	ruKGIndex         ID = 598
	ruKZIndex         ID = 599
	ruMDIndex         ID = 600