func AddUint64(val *uint64, delta uint64) (new uint64) {
runtime.RaceSemacquire(&mtx)
runtime.RaceAcquire(unsafe.Pointer(val))
*val = *val + delta
new = *val
runtime.RaceReleaseMerge(unsafe.Pointer(val))
runtime.RaceSemrelease(&mtx)
return
}
func SwapPointer(addr *unsafe.Pointer, new unsafe.Pointer) (old unsafe.Pointer) {
_ = *addr
runtime.RaceSemacquire(&mtx)
runtime.RaceRead(unsafe.Pointer(addr))
runtime.RaceAcquire(unsafe.Pointer(addr))
old = *addr
*addr = new
runtime.RaceReleaseMerge(unsafe.Pointer(addr))
runtime.RaceSemrelease(&mtx)
return
}
func CompareAndSwapUintptr(val *uintptr, old, new uintptr) (swapped bool) {
swapped = false
runtime.RaceSemacquire(&mtx)
runtime.RaceAcquire(unsafe.Pointer(val))
if *val == old {
*val = new
swapped = true
runtime.RaceReleaseMerge(unsafe.Pointer(val))
}
runtime.RaceSemrelease(&mtx)
return
}
func raceReleaseMerge(addr unsafe.Pointer) {
runtime.RaceReleaseMerge(addr)
}