func runtime_pollServerInit()
func runtime_pollOpen(fd uintptr) (uintptr, int)
func runtime_pollClose(ctx uintptr)
func runtime_pollWait(ctx uintptr, mode int) int
func runtime_pollWaitCanceled(ctx uintptr, mode int)
func runtime_pollReset(ctx uintptr, mode int) int
func runtime_pollSetDeadline(ctx uintptr, d int64, mode int)
func runtime_pollUnblock(ctx uintptr)
func runtime_isPollServerDescriptor(fd uintptr) bool

type pollDesc struct {