Struct remote_block_device::BlockIoFlag

impl BlockIoFlag

pub const GROUP_ITEM: BlockIoFlag = _

Associate the following request with group.

pub const GROUP_LAST: BlockIoFlag = _

Only respond after this request (and all previous within group) have completed. Only valid with GROUP_ITEM.

pub const FORCE_ACCESS: BlockIoFlag = _

Mark this operation as “Force Unit Access” (FUA), indicating that it should not complete until the data is written to the non-volatile medium (write), and that reads should bypass any on-device caches.

pub const PREFLUSH: BlockIoFlag = _

The pre-flush flag generates a flush operation before running this operation and flushes on-device caches. It ensures that previous data is written to the non-volatile medium. Applying the preflush to an operation in a group will only apply to the operation with the flag and not all the other operations in the group. The preflush only applies to an operation where the preflush flag is set. It does not affect other operations and can proceed in parallel. If the flush operation fails, the operation will not proceed.

impl BlockIoFlag

pub const fn empty() -> BlockIoFlag

Get a flags value with all bits unset.

pub const fn all() -> BlockIoFlag

Get a flags value with all known bits set.

pub const fn bits(&self) -> u32

Get the underlying bits value.

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

pub const fn from_bits(bits: u32) -> Option<BlockIoFlag>

Convert from a bits value.

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

pub const fn from_bits_truncate(bits: u32) -> BlockIoFlag

Convert from a bits value, unsetting any unknown bits.

pub const fn from_bits_retain(bits: u32) -> BlockIoFlag

Convert from a bits value exactly.

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

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: BlockIoFlag) -> bool

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

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

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

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

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

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

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: BlockIoFlag)

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

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

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

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

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

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

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

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

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: BlockIoFlag) -> BlockIoFlag

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

pub const fn complement(self) -> BlockIoFlag

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

impl BlockIoFlag

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

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<BlockIoFlag>

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 BlockIoFlag

pub fn has_unknown_bits(&self) -> bool

👎Deprecated: Strict bits should not use has_unknown_bits

pub fn get_unknown_bits(&self) -> u32

👎Deprecated: Strict bits should not use get_unknown_bits

Trait Implementations§

impl Binary for BlockIoFlag

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

Formats the value using the given formatter.

impl BitAnd for BlockIoFlag

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

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

type Output = BlockIoFlag

The resulting type after applying the & operator.

impl BitAndAssign for BlockIoFlag

fn bitand_assign(&mut self, other: BlockIoFlag)

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

impl BitOr for BlockIoFlag

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

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

type Output = BlockIoFlag

The resulting type after applying the | operator.

impl BitOrAssign for BlockIoFlag

fn bitor_assign(&mut self, other: BlockIoFlag)

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

impl BitXor for BlockIoFlag

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

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

type Output = BlockIoFlag

The resulting type after applying the ^ operator.

impl BitXorAssign for BlockIoFlag

fn bitxor_assign(&mut self, other: BlockIoFlag)

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

impl Clone for BlockIoFlag

fn clone(&self) -> BlockIoFlag

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

impl Debug for BlockIoFlag

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

Formats the value using the given formatter. Read more

impl Decode<BlockIoFlag> for BlockIoFlag

fn new_empty() -> BlockIoFlag

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.

unsafe fn decode( &mut self, decoder: &mut Decoder<'_>, offset: usize, _depth: Depth ) -> Result<(), Error>

Decodes an object of type T from the decoder’s buffers into self. Read more

impl Default for BlockIoFlag

fn default() -> BlockIoFlag

Returns the “default value” for a type. Read more

impl Encode<BlockIoFlag> for BlockIoFlag

unsafe fn encode( self, encoder: &mut Encoder<'_>, offset: usize, _depth: Depth ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more

impl Extend<BlockIoFlag> for BlockIoFlag

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

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. Read more

impl Flags for BlockIoFlag

const FLAGS: &'static [Flag<BlockIoFlag>] = _

The set of defined flags.

type Bits = u32

The underlying bits type.

fn bits(&self) -> u32

Get the underlying bits value. Read more

fn from_bits_retain(bits: u32) -> BlockIoFlag

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

Convert from a bits value. Read more

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. Read more

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

Yield a set of contained flags values. Read more

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

Yield a set of contained named flags values. Read more

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 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 (&!). Read more

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 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 (&!). Read more

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<BlockIoFlag> for BlockIoFlag

fn from_iter<T>(iterator: T) -> BlockIoFlag
where T: IntoIterator<Item = BlockIoFlag>,

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

impl Hash for BlockIoFlag

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

Feeds this value into the given Hasher. Read more

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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more

impl IntoIterator for BlockIoFlag

type Item = BlockIoFlag

The type of the elements being iterated over.

type IntoIter = Iter<BlockIoFlag>

Which kind of iterator are we turning this into?

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

Creates an iterator from a value. Read more

impl LowerHex for BlockIoFlag

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

Formats the value using the given formatter.

impl Not for BlockIoFlag

fn not(self) -> BlockIoFlag

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

type Output = BlockIoFlag

The resulting type after applying the ! operator.

impl Octal for BlockIoFlag

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

Formats the value using the given formatter.

impl Ord for BlockIoFlag

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

This method returns an Ordering between self and other. Read more

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

Compares and returns the maximum of two values. Read more

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

Compares and returns the minimum of two values. Read more

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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more

impl PartialEq for BlockIoFlag

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for BlockIoFlag

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

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

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

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

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

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

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

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

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

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

impl Sub for BlockIoFlag

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

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 = BlockIoFlag

The resulting type after applying the - operator.

impl SubAssign for BlockIoFlag

fn sub_assign(&mut self, other: BlockIoFlag)

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 TypeMarker for BlockIoFlag

type Owned = BlockIoFlag

The owned Rust type which this FIDL type decodes into.

fn inline_align(_context: Context) -> usize

Returns the minimum required alignment of the inline portion of the encoded object. It must be a (nonzero) power of two.

fn inline_size(_context: Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for alignment. Must be a multiple of inline_align.

fn encode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and encoding requires no validation. When true, we can optimize encoding arrays and vectors of Self::Owned to a single memcpy. Read more

fn decode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and decoding requires no validation. When true, we can optimize decoding arrays and vectors of Self::Owned to a single memcpy.