Struct BlockGroupFlags 

pub struct BlockGroupFlags(/* private fields */);

Block group / chunk type flags: the combination of chunk type (DATA, SYSTEM, METADATA) and RAID profile stored in on-disk chunk items and block group items.

Display produces the dump-tree format: DATA|DUP, METADATA|single, etc.

Implementations

impl BlockGroupFlags

pub const DATA: BlockGroupFlags

pub const SYSTEM: BlockGroupFlags

pub const METADATA: BlockGroupFlags

pub const RAID0: BlockGroupFlags

pub const RAID1: BlockGroupFlags

pub const DUP: BlockGroupFlags

pub const RAID10: BlockGroupFlags

pub const RAID5: BlockGroupFlags

pub const RAID6: BlockGroupFlags

pub const RAID1C3: BlockGroupFlags

pub const RAID1C4: BlockGroupFlags

pub const SINGLE: BlockGroupFlags

Explicit “single” marker (bit 48). When no profile bits are set, the allocation is also single.

pub const GLOBAL_RSV: BlockGroupFlags

Pseudo-type used for the global reservation pool.

impl BlockGroupFlags

pub const fn empty() -> BlockGroupFlags

Get a flags value with all bits unset.

pub const fn all() -> BlockGroupFlags

Get a flags value with all known bits set.

pub const fn bits(&self) -> u64

Get the underlying bits value.

The returned value is exactly the bits set in this flags value.

pub const fn from_bits(bits: u64) -> Option<BlockGroupFlags>

Convert from a bits value.

This method will return None if any unknown bits are set.

pub const fn from_bits_truncate(bits: u64) -> BlockGroupFlags

Convert from a bits value, unsetting any unknown bits.

pub const fn from_bits_retain(bits: u64) -> BlockGroupFlags

Convert from a bits value exactly.

pub fn from_name(name: &str) -> Option<BlockGroupFlags>

Get a flags value with the bits of a flag with the given name set.

This method will return None if name is empty or doesn’t correspond to any named flag.

pub const fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.

pub const fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

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

Whether any set bits in a source flags value are also set in a target flags value.

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

Whether all set bits in a source flags value are also set in a target flags value.

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

The bitwise or (|) of the bits in two flags values.

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

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. remove won’t truncate other, but the ! operator will.

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

The bitwise exclusive-or (^) of the bits in two flags values.

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

Call insert when value is true or remove when value is false.

pub const fn intersection(self, other: BlockGroupFlags) -> BlockGroupFlags

The bitwise and (&) of the bits in two flags values.

pub const fn union(self, other: BlockGroupFlags) -> BlockGroupFlags

The bitwise or (|) of the bits in two flags values.

pub const fn difference(self, other: BlockGroupFlags) -> BlockGroupFlags

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

pub const fn symmetric_difference( self, other: BlockGroupFlags, ) -> BlockGroupFlags

The bitwise exclusive-or (^) of the bits in two flags values.

pub const fn complement(self) -> BlockGroupFlags

The bitwise negation (!) of the bits in a flags value, truncating the result.

impl BlockGroupFlags

pub const fn iter(&self) -> Iter<BlockGroupFlags>

Yield a set of contained flags values.

Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.

pub const fn iter_names(&self) -> IterNames<BlockGroupFlags>

Yield a set of contained named flags values.

This method is like iter, except only yields bits in contained named flags. Any unknown bits, or bits not corresponding to a contained flag will not be yielded.

impl BlockGroupFlags

pub fn type_name(self) -> &'static str

Returns the human-readable chunk type name.

pub fn profile_name(self) -> &'static str

Returns the RAID profile name, or "single" when no profile bit is set.

Trait Implementations

impl Binary for BlockGroupFlags

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

Formats the value using the given formatter.

impl BitAnd for BlockGroupFlags

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

The bitwise and (&) of the bits in two flags values.

type Output = BlockGroupFlags

The resulting type after applying the & operator.

impl BitAndAssign for BlockGroupFlags

fn bitand_assign(&mut self, other: BlockGroupFlags)

The bitwise and (&) of the bits in two flags values.

impl BitOr for BlockGroupFlags

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

The bitwise or (|) of the bits in two flags values.

type Output = BlockGroupFlags

The resulting type after applying the | operator.

impl BitOrAssign for BlockGroupFlags

fn bitor_assign(&mut self, other: BlockGroupFlags)

The bitwise or (|) of the bits in two flags values.

impl BitXor for BlockGroupFlags

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

The bitwise exclusive-or (^) of the bits in two flags values.

type Output = BlockGroupFlags

The resulting type after applying the ^ operator.

impl BitXorAssign for BlockGroupFlags

fn bitxor_assign(&mut self, other: BlockGroupFlags)

The bitwise exclusive-or (^) of the bits in two flags values.

impl Clone for BlockGroupFlags

fn clone(&self) -> BlockGroupFlags

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BlockGroupFlags

impl Debug for BlockGroupFlags

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

Formats the value using the given formatter.

impl Eq for BlockGroupFlags

impl Extend<BlockGroupFlags> for BlockGroupFlags

fn extend<T>(&mut self, iterator: T)

where T: IntoIterator<Item = BlockGroupFlags>,

The bitwise or (|) of the bits in each flags value.

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 Flags for BlockGroupFlags

const FLAGS: &'static [Flag<BlockGroupFlags>]

The set of defined flags.

type Bits = u64

The underlying bits type.

fn bits(&self) -> u64

Get the underlying bits value.

fn from_bits_retain(bits: u64) -> BlockGroupFlags

Convert from a bits value exactly.

fn empty() -> Self

Get a flags value with all bits unset.

fn all() -> Self

Get a flags value with all known bits set.

fn known_bits(&self) -> Self::Bits

Get the known bits from a flags value.

fn unknown_bits(&self) -> Self::Bits

Get the unknown bits from a flags value.

fn contains_unknown_bits(&self) -> bool

This method will return true if any unknown bits are set.

fn from_bits(bits: Self::Bits) -> Option<Self>

Convert from a bits value.

fn from_bits_truncate(bits: Self::Bits) -> Self

Convert from a bits value, unsetting any unknown bits.

fn from_name(name: &str) -> Option<Self>

Get a flags value with the bits of a flag with the given name set.

fn iter(&self) -> Iter<Self>

Yield a set of contained flags values.

fn iter_names(&self) -> IterNames<Self>

Yield a set of contained named flags values.

fn iter_defined_names() -> IterDefinedNames<Self>

Yield a set of all named flags defined by Self::FLAGS.

fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.

fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

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

where Self: Sized,

Whether any set bits in a source flags value are also set in a target flags value.

fn contains(&self, other: Self) -> bool

where Self: Sized,

Whether all set bits in a source flags value are also set in a target flags value.

fn truncate(&mut self)

where Self: Sized,

Remove any unknown bits from the flags.

fn insert(&mut self, other: Self)

where Self: Sized,

The bitwise or (|) of the bits in two flags values.

fn remove(&mut self, other: Self)

where Self: Sized,

The intersection of a source flags value with the complement of a target flags value (&!).

fn toggle(&mut self, other: Self)

where Self: Sized,

The bitwise exclusive-or (^) of the bits in two flags values.

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

where Self: Sized,

Call Flags::insert when value is true or Flags::remove when value is false.

fn clear(&mut self)

where Self: Sized,

Unsets all bits in the flags.

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

The bitwise and (&) of the bits in two flags values.

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

The bitwise or (|) of the bits in two flags values.

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

The intersection of a source flags value with the complement of a target flags value (&!).

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

The bitwise exclusive-or (^) of the bits in two flags values.

fn complement(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.

impl FromIterator<BlockGroupFlags> for BlockGroupFlags

fn from_iter<T>(iterator: T) -> BlockGroupFlags

where T: IntoIterator<Item = BlockGroupFlags>,

The bitwise or (|) of the bits in each flags value.

impl Hash for BlockGroupFlags

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

where __H: Hasher,

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 IntoIterator for BlockGroupFlags

type Item = BlockGroupFlags

The type of the elements being iterated over.

type IntoIter = Iter<BlockGroupFlags>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <BlockGroupFlags as IntoIterator>::IntoIter

Creates an iterator from a value.

impl LowerHex for BlockGroupFlags

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

Formats the value using the given formatter.

impl Not for BlockGroupFlags

fn not(self) -> BlockGroupFlags

The bitwise negation (!) of the bits in a flags value, truncating the result.

type Output = BlockGroupFlags

The resulting type after applying the ! operator.

impl Octal for BlockGroupFlags

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

Formats the value using the given formatter.

impl PartialEq for BlockGroupFlags

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BlockGroupFlags

impl Sub for BlockGroupFlags

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

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

type Output = BlockGroupFlags

The resulting type after applying the - operator.

impl SubAssign for BlockGroupFlags

fn sub_assign(&mut self, other: BlockGroupFlags)

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

impl UpperHex for BlockGroupFlags

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

Formats the value using the given formatter.