Struct sys_mount::UnmountFlags

pub struct UnmountFlags { /* fields omitted */ }

Flags which may be specified when unmounting a file system.

Methods

impl UnmountFlags

pub const FORCE: UnmountFlags

FORCE: UnmountFlags = UnmountFlags{bits: MNT_FORCE,}

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

pub const DETACH: UnmountFlags

DETACH: UnmountFlags = UnmountFlags{bits: MNT_DETACH,}

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

EXPIRE: UnmountFlags = UnmountFlags{bits: MNT_EXPIRE,}

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

NOFOLLOW: UnmountFlags = UnmountFlags{bits: O_NOFOLLOW,}

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 fn empty() -> UnmountFlags

Returns an empty set of flags.

pub fn all() -> UnmountFlags

Returns the set containing all flags.

pub fn bits(&self) -> i32

Returns the raw value of the flags currently stored.

pub fn from_bits(bits: i32) -> Option<UnmountFlags>

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

pub fn from_bits_truncate(bits: i32) -> UnmountFlags

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

pub fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

pub fn is_all(&self) -> bool

Returns true if all flags are currently set.

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

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

pub 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 Copy for UnmountFlags

impl PartialEq 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 Eq for UnmountFlags

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 PartialOrd 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: &UnmountFlags) -> bool

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

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

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

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

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

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

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

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.

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 Debug for UnmountFlags

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

Formats the value using the given formatter.

impl Binary for UnmountFlags

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

Formats the value using the given formatter.

impl Octal for UnmountFlags

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

Formats the value using the given formatter.

impl LowerHex for UnmountFlags

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

Formats the value using the given formatter.

impl UpperHex for UnmountFlags

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

Formats the value using the given formatter.

impl BitOr for UnmountFlags

type Output = UnmountFlags

The resulting type after applying the | operator.

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

Returns the union of the two sets of flags.

impl BitOrAssign for UnmountFlags

fn bitor_assign(&mut self, other: UnmountFlags)

Adds the set of flags.

impl BitXor for UnmountFlags

type Output = UnmountFlags

The resulting type after applying the ^ operator.

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

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

impl BitXorAssign for UnmountFlags

fn bitxor_assign(&mut self, other: UnmountFlags)

Toggles the set of flags.

impl BitAnd for UnmountFlags

type Output = UnmountFlags

The resulting type after applying the & operator.

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

Returns the intersection between the two sets of flags.

impl BitAndAssign for UnmountFlags

fn bitand_assign(&mut self, other: UnmountFlags)

Disables all flags disabled in the set.

impl Sub for UnmountFlags

type Output = UnmountFlags

The resulting type after applying the - operator.

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

Returns the set difference of the two sets of flags.

impl SubAssign for UnmountFlags

fn sub_assign(&mut self, other: UnmountFlags)

Disables all flags enabled in the set.

impl Not for UnmountFlags

type Output = UnmountFlags

The resulting type after applying the ! operator.

fn not(self) -> UnmountFlags

Returns the complement of this set of flags.

impl Extend<UnmountFlags> for UnmountFlags

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

Extends a collection with the contents of an iterator.

impl FromIterator<UnmountFlags> for UnmountFlags

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

Creates a value from an iterator.