func golang.org/x/sys/unix.Select

one use

	golang.org/x/sys/unix (current package)
		syscall_linux_amd64.go#L37: func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)