Struct rustix::backend::reg::RetReg

#[repr(transparent)]
pub(super) struct RetReg<Num: RetNumber> {
    raw: *mut Opaque,
    _phantom: PhantomData<Num>,
}

Syscall return values use register-sized types. We use a newtype to discourage accidental misuse of the raw integer values.

This type doesn’t implement Clone or Copy; it should be used exactly once.

Fields

raw: *mut Opaque

_phantom: PhantomData<Num>

Implementations

impl<Num: RetNumber> RetReg<Num>

pub(super) fn decode_usize(self) -> usize

pub(super) fn decode_raw_fd(self) -> RawFd

pub(super) fn decode_c_int(self) -> c_int

pub(super) fn decode_c_uint(self) -> c_uint

pub(super) fn decode_void_star(self) -> *mut c_void

pub(super) fn decode_u64(self) -> u64

pub(super) fn decode_void(self)

pub(super) fn decode_error_code(self) -> u16

pub(super) fn is_nonzero(&self) -> bool

pub(super) fn is_negative(&self) -> bool

pub(super) fn is_in_range(&self, range: Range<isize>) -> bool

Trait Implementations

impl<Num: RetNumber> FromAsm for RetReg<Num>

unsafe fn from_asm(raw: *mut Opaque) -> Self

Convert raw from a value produced by a syscall machine instruction into a Self.

impl<Num: RetNumber> Sealed for RetReg<Num>