Struct WriteFlags

pub struct WriteFlags { /* private fields */ }

AIO write flags. See io_submit

Implementations

impl WriteFlags

pub const APPEND: WriteFlags

Append data to the end of the file. See the description of the flag of the same name in pwritev2(2) as well as the description of O_APPEND in open(2). The aio_offset field is ignored. The file offset is not changed.

pub const DSYNC: WriteFlags

Write operation complete according to requirement of synchronized I/O data integrity. See the description of the flag of the same name in pwritev2(2) as well the description of O_DSYNC in open(2).

pub const HIPRI: WriteFlags

High priority request, poll if possible

pub const NOWAIT: WriteFlags

Don’t wait if the I/O will block for operations such as file block allocations, dirty page flush, mutex locks, or a congested block device inside the kernel. If any of these conditions are met, the control block is returned immediately with a return value of -EAGAIN in the res field of the io_event structure.

pub const SYNC: WriteFlags

Write operation complete according to requirement of synchronized I/O file integrity. See the description of the flag of the same name in pwritev2(2) as well the description of O_SYNC in open(2).

pub const fn empty() -> WriteFlags

Returns an empty set of flags

pub const fn all() -> WriteFlags

Returns the set containing all flags.

pub const fn bits(&self) -> isize

Returns the raw value of the flags currently stored.

pub fn from_bits(bits: isize) -> Option<WriteFlags>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

pub const fn from_bits_truncate(bits: isize) -> WriteFlags

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

pub const unsafe fn from_bits_unchecked(bits: isize) -> WriteFlags

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

pub const fn is_all(&self) -> bool

Returns true if all flags are currently set.

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

Returns true if there are flags common to both self and other.

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

Returns true all of the flags in other are contained within self.

pub fn insert(&mut self, other: WriteFlags)

Inserts the specified flags in-place.

pub fn remove(&mut self, other: WriteFlags)

Removes the specified flags in-place.

pub fn toggle(&mut self, other: WriteFlags)

Toggles the specified flags in-place.

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

Inserts or removes the specified flags depending on the passed value.

Trait Implementations

impl Binary for WriteFlags

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

Formats the value using the given formatter.

impl BitAnd for WriteFlags

fn bitand(self, other: WriteFlags) -> WriteFlags

Returns the intersection between the two sets of flags.

type Output = WriteFlags

The resulting type after applying the & operator.

impl BitAndAssign for WriteFlags

fn bitand_assign(&mut self, other: WriteFlags)

Disables all flags disabled in the set.

impl BitOr for WriteFlags

fn bitor(self, other: WriteFlags) -> WriteFlags

Returns the union of the two sets of flags.

type Output = WriteFlags

The resulting type after applying the | operator.

impl BitOrAssign for WriteFlags

fn bitor_assign(&mut self, other: WriteFlags)

Adds the set of flags.

impl BitXor for WriteFlags

fn bitxor(self, other: WriteFlags) -> WriteFlags

Returns the left flags, but with all the right flags toggled.

type Output = WriteFlags

The resulting type after applying the ^ operator.

impl BitXorAssign for WriteFlags

fn bitxor_assign(&mut self, other: WriteFlags)

Toggles the set of flags.

impl Clone for WriteFlags

fn clone(&self) -> WriteFlags

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for WriteFlags

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

Formats the value using the given formatter.

impl Extend<WriteFlags> for WriteFlags

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

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl FromIterator<WriteFlags> for WriteFlags

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

Creates a value from an iterator.

impl Hash for WriteFlags

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl LowerHex for WriteFlags

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

Formats the value using the given formatter.

impl Not for WriteFlags

fn not(self) -> WriteFlags

Returns the complement of this set of flags.

type Output = WriteFlags

The resulting type after applying the ! operator.

impl Octal for WriteFlags

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

Formats the value using the given formatter.

impl Ord for WriteFlags

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

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for WriteFlags

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for WriteFlags

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

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Sub for WriteFlags

fn sub(self, other: WriteFlags) -> WriteFlags

Returns the set difference of the two sets of flags.

type Output = WriteFlags

The resulting type after applying the - operator.

impl SubAssign for WriteFlags

fn sub_assign(&mut self, other: WriteFlags)

Disables all flags enabled in the set.

impl UpperHex for WriteFlags

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

Formats the value using the given formatter.

impl Copy for WriteFlags

impl Eq for WriteFlags

impl StructuralPartialEq for WriteFlags