pub const CLONE_VM: usize = 0x100;
pub const CLONE_FS: usize = 0x200;
pub const CLONE_FILES: usize = 0x400;
pub const CLONE_VFORK: usize = 0x4000;
/// Mark this clone as supervised.
///
/// This means that the process can run in supervised mode, even not being connected to
/// a supervisor yet. In other words, the parent can later on supervise the process and handle
/// the potential blocking syscall.
///
/// This is an important security measure, since otherwise the process would be able to fork it
/// self right after starting, making supervising it impossible.
pub const CLONE_SUPERVISE: usize = 0x400000;
pub const CLOCK_REALTIME: usize = 1;
pub const CLOCK_MONOTONIC: usize = 4;

pub const EVENT_NONE: usize = 0;
pub const EVENT_READ: usize = 1;
pub const EVENT_WRITE: usize = 2;

pub const FUTEX_WAIT: usize = 0;
pub const FUTEX_WAKE: usize = 1;
pub const FUTEX_REQUEUE: usize = 2;

pub const MAP_WRITE: usize = 1;
pub const MAP_WRITE_COMBINE: usize = 2;

pub const MODE_DIR: u16 = 0x4000;
pub const MODE_FILE: u16 = 0x8000;
pub const MODE_ALL: u16 = MODE_DIR | MODE_FILE;

pub const SEEK_SET: usize = 0;
pub const SEEK_CUR: usize = 1;
pub const SEEK_END: usize = 2;

pub const O_RDONLY: usize = 0;
pub const O_WRONLY: usize = 1;
pub const O_RDWR: usize = 2;
pub const O_NONBLOCK: usize = 4;
pub const O_APPEND: usize = 8;
pub const O_SHLOCK: usize = 0x10;
pub const O_EXLOCK: usize = 0x20;
pub const O_ASYNC: usize = 0x40;
pub const O_FSYNC: usize = 0x80;
pub const O_CREAT: usize = 0x200;
pub const O_TRUNC: usize = 0x400;
pub const O_EXCL: usize = 0x800;

pub const WNOHANG: usize = 1;