pub const EXIT:    usize = 0x1;
pub const SPAWN:   usize = 0x2;
pub const READ:    usize = 0x3;
pub const WRITE:   usize = 0x4;
pub const OPEN:    usize = 0x5;
pub const CLOSE:   usize = 0x6;
pub const INFO:    usize = 0x7;
pub const DUP:     usize = 0x8;
pub const DELETE:  usize = 0x9;
pub const STOP:    usize = 0xA;
pub const SLEEP:   usize = 0xB;
pub const POLL:    usize = 0xC;
pub const CONNECT: usize = 0xD;
pub const LISTEN:  usize = 0xE;
pub const ACCEPT:  usize = 0xF;
pub const ALLOC:   usize = 0x10;
pub const FREE:    usize = 0x11;