Struct FdFlag

#[repr(transparent)]
pub struct FdFlag(/* private field */);

Additional configuration flags for fcntl's F_SETFD.

Implementations

impl FdFlag

const FD_CLOEXEC: Self = _;

The file descriptor will automatically be closed during a successful execve(2).

impl FdFlag

const fn empty() -> Self

Get a flags value with all bits unset.

const fn all() -> Self

Get a flags value with all known bits set.

const fn bits(&self) -> c_int

Get the underlying bits value.

The returned value is exactly the bits set in this flags value.

const fn from_bits(bits: c_int) -> Option<Self>

Convert from a bits value.

This method will return None if any unknown bits are set.

const fn from_bits_truncate(bits: c_int) -> Self

Convert from a bits value, unsetting any unknown bits.

const fn from_bits_retain(bits: c_int) -> Self

Convert from a bits value exactly.

fn from_name(name: &str) -> Option<Self>

Get a flags value with the bits of a flag with the given name set.

This method will return None if name is empty or doesn't correspond to any named flag.

const fn is_empty(&self) -> bool

Whether all bits in self are unset.

const fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

const fn intersects(&self, other: Self) -> bool

Whether any set bits in other are also set in self.

const fn contains(&self, other: Self) -> bool

Whether all set bits in other are also set in self.

fn insert(&mut self, other: Self)

The bitwise or (|) of the bits in self and other.

fn remove(&mut self, other: Self)

The intersection of self with the complement of other (&!).

This method is not equivalent to self & !other when other has unknown bits set. remove won't truncate other, but the ! operator will.

fn toggle(&mut self, other: Self)

The bitwise exclusive-or (^) of the bits in self and other.

fn set(&mut self, other: Self, value: bool)

Call insert when value is true or remove when value is false.

const fn intersection(self, other: Self) -> Self

The bitwise and (&) of the bits in self and other.

const fn union(self, other: Self) -> Self

The bitwise or (|) of the bits in self and other.

const fn difference(self, other: Self) -> Self

The intersection of self with the complement of other (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won't truncate other, but the ! operator will.

const fn symmetric_difference(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in self and other.

const fn complement(self) -> Self

The bitwise negation (!) of the bits in self, truncating the result.

impl FdFlag

const fn iter(&self) -> Iter<FdFlag>

Yield a set of contained flags values.

Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.

const fn iter_names(&self) -> IterNames<FdFlag>

Yield a set of contained named flags values.

This method is like iter, except only yields bits in contained named flags. Any unknown bits, or bits not corresponding to a contained flag will not be yielded.

Trait Implementations

impl Binary for FdFlag

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl BitAnd for FdFlag

type Output = FdFlag;
fn bitand(self, other: Self) -> Self

The bitwise and (&) of the bits in self and other.

impl BitAndAssign for FdFlag

fn bitand_assign(&mut self, other: Self)

The bitwise and (&) of the bits in self and other.

impl BitOr for FdFlag

type Output = FdFlag;
fn bitor(self, other: FdFlag) -> Self

The bitwise or (|) of the bits in self and other.

impl BitOrAssign for FdFlag

fn bitor_assign(&mut self, other: Self)

The bitwise or (|) of the bits in self and other.

impl BitXor for FdFlag

type Output = FdFlag;
fn bitxor(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in self and other.

impl BitXorAssign for FdFlag

fn bitxor_assign(&mut self, other: Self)

The bitwise exclusive-or (^) of the bits in self and other.

impl Clone for FdFlag

fn clone(&self) -> Self

impl Copy for FdFlag

impl Debug for FdFlag

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl Eq for FdFlag

impl Extend<FdFlag> for FdFlag

fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)

The bitwise or (|) of the bits in each flags value.

impl Flags for FdFlag

const FLAGS: &'static [Flag<FdFlag>] = _;
type Bits = i32;
fn bits(&self) -> c_int
fn from_bits_retain(bits: c_int) -> FdFlag
fn all_named() -> FdFlag

impl FromIterator<FdFlag> for FdFlag

fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self

The bitwise or (|) of the bits in each flags value.

impl Hash for FdFlag

fn hash<__H: Hasher>(&self, state: &mut __H)

impl IntoIterator for FdFlag

type Item = FdFlag;
type IntoIter = Iter<FdFlag>;
fn into_iter(self) -> Self::IntoIter

impl LowerHex for FdFlag

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl Not for FdFlag

type Output = FdFlag;
fn not(self) -> Self

The bitwise negation (!) of the bits in self, truncating the result.

impl Octal for FdFlag

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl Ord for FdFlag

fn cmp(&self, other: &Self) -> Ordering

impl PartialEq for FdFlag

fn eq(&self, other: &Self) -> bool

impl PartialOrd for FdFlag

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

impl PublicFlags for FdFlag

type Primitive = i32;
type Internal = InternalBitFlags;

impl StructuralPartialEq for FdFlag

impl Sub for FdFlag

type Output = FdFlag;
fn sub(self, other: Self) -> Self

The intersection of self with the complement of other (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won't truncate other, but the ! operator will.

impl SubAssign for FdFlag

fn sub_assign(&mut self, other: Self)

The intersection of self with the complement of other (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won't truncate other, but the ! operator will.

impl UpperHex for FdFlag

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Auto Trait Implementations

impl Freeze for FdFlag

impl RefUnwindSafe for FdFlag

impl Send for FdFlag

impl Sync for FdFlag

impl Unpin for FdFlag

impl UnsafeUnpin for FdFlag

impl UnwindSafe for FdFlag

Blanket Implementations

impl<T> Any for FdFlag where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for FdFlag where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for FdFlag where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> CloneToUninit for FdFlag where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

impl<T> From<T> for FdFlag

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> ToOwned for FdFlag where T: Clone,

type Owned = T;
fn to_owned(&self) -> T
fn clone_into(&self, target: &mut T)

impl<T, U> Into<U> for FdFlag where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

impl<T, U> TryFrom<U> for FdFlag where U: Into<T>,

type Error = never;
fn try_from(value: U) -> Result<T, never>

impl<T, U> TryInto<U> for FdFlag where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error;
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>