Struct sys_mount::UnmountFlags

pub struct UnmountFlags { /* fields omitted */ }

Flags which may be specified when unmounting a file system.

Implementations

impl UnmountFlags

pub const FORCE: UnmountFlags

Force unmount even if busy. This can cause data loss. (Only for NFS mounts.)

pub const DETACH: UnmountFlags

Perform a lazy unmount: make the mount point unavailable for new accesses, and actually perform the unmount when the mount point ceases to be busy.

pub const EXPIRE: UnmountFlags

Mark the mount point as expired. If a mount point is not currently in use, then an initial call to umount2() with this flag fails with the error EAGAIN, but marks the mount point as expired. The mount point remains expired as long as it isn’t accessed by any process. A second umount2() call specifying MNT_EXPIRE unmounts an expired mount point. This flag cannot be specified with either MNT_FORCE or MNT_DETACH.

pub const NOFOLLOW: UnmountFlags

Don’t dereference target if it is a symbolic link. This flag allows security problems to be avoided in set-user-ID-root programs that allow unprivileged users to unmount file systems.

pub const fn empty() -> UnmountFlags

Returns an empty set of flags

pub const fn all() -> UnmountFlags

Returns the set containing all flags.

pub const fn bits(&self) -> c_int

Returns the raw value of the flags currently stored.

pub fn from_bits(bits: c_int) -> Option<UnmountFlags>

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

pub const fn from_bits_truncate(bits: c_int) -> UnmountFlags

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

pub const unsafe fn from_bits_unchecked(bits: c_int) -> UnmountFlags

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: UnmountFlags) -> bool

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

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

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

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

Inserts the specified flags in-place.

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

Removes the specified flags in-place.

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

Toggles the specified flags in-place.

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

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

Trait Implementations

impl Binary for UnmountFlags

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

Formats the value using the given formatter.

impl BitAnd<UnmountFlags> for UnmountFlags

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

Returns the intersection between the two sets of flags.

type Output = UnmountFlags

The resulting type after applying the & operator.

impl BitAndAssign<UnmountFlags> for UnmountFlags

fn bitand_assign(&mut self, other: UnmountFlags)

Disables all flags disabled in the set.

impl BitOr<UnmountFlags> for UnmountFlags

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

Returns the union of the two sets of flags.

type Output = UnmountFlags

The resulting type after applying the | operator.

impl BitOrAssign<UnmountFlags> for UnmountFlags

fn bitor_assign(&mut self, other: UnmountFlags)

Adds the set of flags.

impl BitXor<UnmountFlags> for UnmountFlags

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

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

type Output = UnmountFlags

The resulting type after applying the ^ operator.

impl BitXorAssign<UnmountFlags> for UnmountFlags

fn bitxor_assign(&mut self, other: UnmountFlags)

Toggles the set of flags.

impl Clone for UnmountFlags

fn clone(&self) -> UnmountFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for UnmountFlags

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

Formats the value using the given formatter.

impl Extend<UnmountFlags> for UnmountFlags

fn extend<T: IntoIterator<Item = UnmountFlags>>(&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<UnmountFlags> for UnmountFlags

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

Creates a value from an iterator.

impl Hash for UnmountFlags

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, 

Feeds a slice of this type into the given Hasher.

impl LowerHex for UnmountFlags

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

Formats the value using the given formatter.

impl Not for UnmountFlags

fn not(self) -> UnmountFlags

Returns the complement of this set of flags.

type Output = UnmountFlags

The resulting type after applying the ! operator.

impl Octal for UnmountFlags

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

Formats the value using the given formatter.

impl Ord for UnmountFlags

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl PartialEq<UnmountFlags> for UnmountFlags

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd<UnmountFlags> for UnmountFlags

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Sub<UnmountFlags> for UnmountFlags

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

Returns the set difference of the two sets of flags.

type Output = UnmountFlags

The resulting type after applying the - operator.

impl SubAssign<UnmountFlags> for UnmountFlags

fn sub_assign(&mut self, other: UnmountFlags)

Disables all flags enabled in the set.

impl UpperHex for UnmountFlags

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

Formats the value using the given formatter.

impl Copy for UnmountFlags

impl Eq for UnmountFlags

impl StructuralEq for UnmountFlags

impl StructuralPartialEq for UnmountFlags