Struct ext4_read_only::structs::SuperBlock

impl SuperBlock

pub fn parse(reader: &dyn Reader) -> Result<SuperBlock, ParsingError>

Parse the Super Block at its default location.

pub fn check_magic(&self) -> Result<(), ParsingError>

pub fn check_inode_size(&self) -> Result<(), ParsingError>

pub fn block_size(&self) -> Result<u64, ParsingError>

Gets file system block size.

Per spec, the only valid block sizes are 1KiB, 2KiB, 4KiB, and 64KiB. We will only permit these values.

Trait Implementations§

impl FromBytes for SuperBlock
where U32: FromBytes, U16: FromBytes, [u8; 16]: FromBytes, [u8; 64]: FromBytes, u8: FromBytes, [U32; 4]: FromBytes, [U32; 17]: FromBytes, U64: FromBytes, [u8; 32]: FromBytes, [U32; 2]: FromBytes, [u8; 4]: FromBytes, [U32; 98]: FromBytes,

fn ref_from(bytes: &[u8]) -> Option<&Self>
where Self: Sized + NoCell,

Interprets the given bytes as a &Self without copying. Read more

fn ref_from_prefix(bytes: &[u8]) -> Option<&Self>
where Self: Sized + NoCell,

Interprets the prefix of the given bytes as a &Self without copying. Read more

fn ref_from_suffix(bytes: &[u8]) -> Option<&Self>
where Self: Sized + NoCell,

Interprets the suffix of the given bytes as a &Self without copying. Read more

fn slice_from(bytes: &[u8]) -> Option<&[Self]>
where Self: Sized + NoCell,

Interprets the given bytes as a &[Self] without copying. Read more

fn slice_from_prefix(bytes: &[u8], count: usize) -> Option<(&[Self], &[u8])>
where Self: Sized + NoCell,

Interprets the prefix of the given bytes as a &[Self] with length equal to count without copying. Read more

fn slice_from_suffix(bytes: &[u8], count: usize) -> Option<(&[u8], &[Self])>
where Self: Sized + NoCell,

Interprets the suffix of the given bytes as a &[Self] with length equal to count without copying. Read more

fn read_from(bytes: &[u8]) -> Option<Self>
where Self: Sized,

Reads a copy of Self from bytes. Read more

fn read_from_prefix(bytes: &[u8]) -> Option<Self>
where Self: Sized,

Reads a copy of Self from the prefix of bytes. Read more

fn read_from_suffix(bytes: &[u8]) -> Option<Self>
where Self: Sized,

Reads a copy of Self from the suffix of bytes. Read more

impl FromZeros for SuperBlock
where U32: FromZeros, U16: FromZeros, [u8; 16]: FromZeros, [u8; 64]: FromZeros, u8: FromZeros, [U32; 4]: FromZeros, [U32; 17]: FromZeros, U64: FromZeros, [u8; 32]: FromZeros, [U32; 2]: FromZeros, [u8; 4]: FromZeros, [U32; 98]: FromZeros,

fn zero(&mut self)

Overwrites self with zeros. Read more

fn new_zeroed() -> Self
where Self: Sized,

Creates an instance of Self from zeroed bytes. Read more

impl Unaligned for SuperBlock
where U32: Unaligned, U16: Unaligned, [u8; 16]: Unaligned, [u8; 64]: Unaligned, u8: Unaligned, [U32; 4]: Unaligned, [U32; 17]: Unaligned, U64: Unaligned, [u8; 32]: Unaligned, [U32; 2]: Unaligned, [u8; 4]: Unaligned, [U32; 98]: Unaligned,

Auto Trait Implementations§

impl UnwindSafe for SuperBlock

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> Encode<Ambiguous1> for T

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<T> Encode<Ambiguous2> for T

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<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoAny for T
where T: 'static + Send + Sync,

fn into_any(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Cast the given object into a dyn std::any::Any.

impl<T> ParseToStruct for T
where T: FromBytes + NoCell + Unaligned,

fn from_reader_with_offset( reader: &dyn Reader, offset: u64 ) -> Result<Self, ParsingError>

fn to_struct_ref( data: &[u8], error_type: ParsingError ) -> Result<&Self, ParsingError>

Casts the &u8 data to &Self. Read more

impl<T> Pointable for T

const ALIGN: usize = _

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T, U> TryFrom for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

impl<T, U> TryInto for T
where U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more