Enum OpenFlag 

#[non_exhaustive]
pub enum OpenFlag {
    Append,
    CloseOnExec,
    Create,
    Directory,
    Exclusive,
    NoCtty,
    NoFollow,
    NonBlock,
    Sync,
    Truncate,
}

Options for opening file descriptors

A set of OpenFlag values can be passed to open to configure how the file descriptor is opened. Some of the flags become the attributes of the open file description created by the open function.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Append

Always write to the end of the file

CloseOnExec

Close the file descriptor upon execution of an exec family function

Create

Create the file if it does not exist

Directory

Fail if the file is not a directory

Exclusive

Atomically create the file if it does not exist

NoCtty

Do not make the opened terminal the controlling terminal for the process

NoFollow

Do not follow symbolic links

NonBlock

Open the file in non-blocking mode

Sync

Wait until the written data is physically stored on the underlying storage device on each write

Truncate

Truncate the file to zero length

Trait Implementations

impl<O: Into<EnumSet<OpenFlag>>> BitAnd<O> for OpenFlag

type Output = EnumSet<OpenFlag>

The resulting type after applying the & operator.

fn bitand(self, other: O) -> Self::Output

Performs the & operation.

impl<O: Into<EnumSet<OpenFlag>>> BitOr<O> for OpenFlag

type Output = EnumSet<OpenFlag>

The resulting type after applying the | operator.

fn bitor(self, other: O) -> Self::Output

Performs the | operation.

impl<O: Into<EnumSet<OpenFlag>>> BitXor<O> for OpenFlag

type Output = EnumSet<OpenFlag>

The resulting type after applying the ^ operator.

fn bitxor(self, other: O) -> Self::Output

Performs the ^ operation.

impl Clone for OpenFlag

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OpenFlag

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

Formats the value using the given formatter.

impl EnumSetConstHelper for OpenFlag

const CONST_INIT_HELPER: __EnumSetInitHelper = __EnumSetInitHelper

The instance of the ConstInitHelper.

const CONST_OP_HELPER: __EnumSetOpHelper = __EnumSetOpHelper

The instance of the ConstOpHelper.

type ConstInitHelper = __EnumSetInitHelper

A helper type used to convert values to EnumSets at compile-time.

type ConstOpHelper = __EnumSetOpHelper

A helper type used to implement compile-time operations on enums.

impl EnumSetTypePrivate for OpenFlag

const ALL_BITS: Self::Repr = {transmute(0x03ff): <system::open_flag::OpenFlag as enumset::__internal::EnumSetTypePrivate>::Repr}

A mask of bits that are valid in the bitset.

const BIT_WIDTH: u32 = 10u32

The largest bit used in the bitset.

const VARIANT_COUNT: u32 = 10u32

The number of variants in the bitset.

type Repr = u16

The underlying type used to store the bitset.

fn enum_into_u32(self) -> u32

Converts an enum of this type into its bit position.

unsafe fn enum_from_u32(val: u32) -> Self

Converts a bit position into an enum value.

unsafe fn enum_from_u32_checked(val: u32) -> Self

Converts a bit position into an enum value, with an debug_assert.

impl Hash for OpenFlag

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 Not for OpenFlag

type Output = EnumSet<OpenFlag>

The resulting type after applying the ! operator.

fn not(self) -> Self::Output

Performs the unary ! operation.

impl PartialEq<EnumSet<OpenFlag>> for OpenFlag

fn eq(&self, other: &EnumSet<OpenFlag>) -> 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 PartialEq for OpenFlag

fn eq(&self, other: &Self) -> 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<O: Into<EnumSet<OpenFlag>>> Sub<O> for OpenFlag

type Output = EnumSet<OpenFlag>

The resulting type after applying the - operator.

fn sub(self, other: O) -> Self::Output

Performs the - operation.

impl Copy for OpenFlag

impl EnumSetType for OpenFlag

impl Eq for OpenFlag