Struct nix::fcntl::FallocateFlags

pub struct FallocateFlags { /* fields omitted */ }

Mode argument flags for fallocate determining operation performed on a given range.

Implementations

impl FallocateFlags

pub const FALLOC_FL_KEEP_SIZE: FallocateFlags

File size is not changed.

offset + len can be greater than file size.

pub const FALLOC_FL_PUNCH_HOLE: FallocateFlags

Deallocates space by creating a hole.

Must be ORed with FALLOC_FL_KEEP_SIZE. Byte range starts at offset and continues for len bytes.

pub const FALLOC_FL_COLLAPSE_RANGE: FallocateFlags

Removes byte range from a file without leaving a hole.

Byte range to collapse starts at offset and continues for len bytes.

pub const FALLOC_FL_ZERO_RANGE: FallocateFlags

Zeroes space in specified byte range.

Byte range starts at offset and continues for len bytes.

pub const FALLOC_FL_INSERT_RANGE: FallocateFlags

Increases file space by inserting a hole within the file size.

Does not overwrite existing data. Hole starts at offset and continues for len bytes.

pub const FALLOC_FL_UNSHARE_RANGE: FallocateFlags

Shared file data extants are made private to the file.

Gaurantees that a subsequent write will not fail due to lack of space.

pub const fn empty() -> FallocateFlags

Returns an empty set of flags

pub const fn all() -> FallocateFlags

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<FallocateFlags>

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) -> FallocateFlags

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

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

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: FallocateFlags) -> bool

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

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

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

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

Inserts the specified flags in-place.

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

Removes the specified flags in-place.

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

Toggles the specified flags in-place.

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

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

Trait Implementations

impl Binary for FallocateFlags

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

Formats the value using the given formatter.

impl BitAnd<FallocateFlags> for FallocateFlags

type Output = FallocateFlags

The resulting type after applying the & operator.

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

Returns the intersection between the two sets of flags.

impl BitAndAssign<FallocateFlags> for FallocateFlags

fn bitand_assign(&mut self, other: FallocateFlags)

Disables all flags disabled in the set.

impl BitOr<FallocateFlags> for FallocateFlags

type Output = FallocateFlags

The resulting type after applying the | operator.

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

Returns the union of the two sets of flags.

impl BitOrAssign<FallocateFlags> for FallocateFlags

fn bitor_assign(&mut self, other: FallocateFlags)

Adds the set of flags.

impl BitXor<FallocateFlags> for FallocateFlags

type Output = FallocateFlags

The resulting type after applying the ^ operator.

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

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

impl BitXorAssign<FallocateFlags> for FallocateFlags

fn bitxor_assign(&mut self, other: FallocateFlags)

Toggles the set of flags.

impl Clone for FallocateFlags

fn clone(&self) -> FallocateFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for FallocateFlags

impl Debug for FallocateFlags

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

Formats the value using the given formatter.

impl Eq for FallocateFlags

impl Extend<FallocateFlags> for FallocateFlags

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

Extends a collection with the contents of an iterator.

pub fn extend_one(&mut self, item: A)

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

Extends a collection with exactly one element.

pub 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<FallocateFlags> for FallocateFlags

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

Creates a value from an iterator.

impl Hash for FallocateFlags

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

Feeds this value into the given Hasher.

pub 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 FallocateFlags

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

Formats the value using the given formatter.

impl Not for FallocateFlags

type Output = FallocateFlags

The resulting type after applying the ! operator.

fn not(self) -> FallocateFlags

Returns the complement of this set of flags.

impl Octal for FallocateFlags

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

Formats the value using the given formatter.

impl Ord for FallocateFlags

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

This method returns an Ordering between self and other.

#[must_use]

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

Compares and returns the maximum of two values.

#[must_use]

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

Compares and returns the minimum of two values.

#[must_use]

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

Restrict a value to a certain interval.

impl PartialEq<FallocateFlags> for FallocateFlags

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

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

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

This method tests for !=.

impl PartialOrd<FallocateFlags> for FallocateFlags

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

pub 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 StructuralEq for FallocateFlags

impl StructuralPartialEq for FallocateFlags

impl Sub<FallocateFlags> for FallocateFlags

type Output = FallocateFlags

The resulting type after applying the - operator.

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

Returns the set difference of the two sets of flags.

impl SubAssign<FallocateFlags> for FallocateFlags

fn sub_assign(&mut self, other: FallocateFlags)

Disables all flags enabled in the set.

impl UpperHex for FallocateFlags

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

Formats the value using the given formatter.