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

2 uses

	golang.org/x/sys/unix (current package)
		syscall_unix.go#L378: 	err = socketpair(domain, typ, proto, &fdx)
		zsyscall_darwin_arm64.go#L201: func socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) {