const JL_O_WRONLY = 0o01
const JL_O_RDONLY = 0o00
const JL_O_RDWR = 0o02
const JL_O_APPEND = 0o02000
const JL_O_CREAT = 0o0100
const JL_O_EXCL = 0o0200
const JL_O_TRUNC = 0o01000
const JL_O_TEMPORARY = 0x0000
const JL_O_SHORT_LIVED = 0x0000
const JL_O_SEQUENTIAL = 0x0000
const JL_O_RANDOM = 0x0000
const JL_O_NOCTTY = 0o0400
const JL_O_NONBLOCK = 0o04000
const JL_O_NDELAY = 0o04000
const JL_O_SYNC = 0o04010000
const JL_O_FSYNC = 0o04010000
const JL_O_ASYNC = 0o020000
const JL_O_LARGEFILE = 0x0000
const JL_O_DIRECTORY = 0o0200000
const JL_O_NOFOLLOW = 0o0400000
const JL_O_CLOEXEC = 0o02000000
const JL_O_DIRECT = 0x0000
const JL_O_NOATIME = 0x0000
const JL_O_PATH = 0x0000
const JL_O_TMPFILE = 0x0000
const JL_O_DSYNC = 0o010000
const JL_O_RSYNC = 0o04010000