// only once as ready (both read and write).
			// Issue 19093.
			// Also don't add directories to the netpoller.
			if err == nil && (typ == syscall.S_IFREG || typ == syscall.S_IFDIR) {
				pollable = false
			}

			// In addition to the behavior described above for regular files,
			// on Darwin, kqueue does not work properly with fifos:

	S_BLKSIZE                                   = 0x200
	S_IEXEC                                     = 0x40
	S_IFBLK                                     = 0x6000
	S_IFCHR                                     = 0x2000
	S_IFDIR                                     = 0x4000
	S_IFIFO                                     = 0x1000
	S_IFLNK                                     = 0xa000
	S_IFMT                                      = 0xf000