fuchsia_fs::file

Struct Adapter

pub struct Adapter<T> { /* private fields */ }

Expand description

Adapter to implement AsyncReadAt + AsyncGetSize for AsyncRead + AsyncSeek.

Implementations§

impl<T> Adapter<T>

pub fn new(inner: T) -> Adapter<T>

Trait Implementations§

impl<T: AsyncSeek + Unpin> AsyncGetSize for Adapter<T>

fn poll_get_size( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<u64>>

Attempt to get the size of the file, on success returns the file size.

impl<T: AsyncRead + AsyncSeek + Unpin> AsyncReadAt for Adapter<T>

fn poll_read_at( self: Pin<&mut Self>, cx: &mut Context<'_>, offset: u64, buf: &mut [u8], ) -> Poll<Result<usize>>

Attempt to read at most buf.len() bytes starting at offset into buf. On success returns the number of bytes read. Contents of buf are only altered on success. Reads of more than zero but fewer than buf.len() bytes do NOT indicate EOF. Reads of zero bytes only occur if buf.len() == 0 or EOF.

impl<T: Debug> Debug for Adapter<T>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl<T> Freeze for Adapter<T>
where T: Freeze,

impl<T> RefUnwindSafe for Adapter<T>
where T: RefUnwindSafe,

impl<T> Send for Adapter<T>
where T: Send,

impl<T> Sync for Adapter<T>
where T: Sync,

impl<T> Unpin for Adapter<T>
where T: Unpin,

impl<T> UnwindSafe for Adapter<T>
where T: UnwindSafe,

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> AsyncGetSizeExt for T
where T: AsyncGetSize + ?Sized,

fn get_size<'a>(&'a mut self) -> GetSize<'a, Self>
where Self: Unpin,

Returns a future that will return the file size on success.

impl<T> AsyncReadAtExt for T
where T: AsyncReadAt + ?Sized,

fn read_at<'a>(&'a mut self, offset: u64, buf: &'a mut [u8]) -> ReadAt<'a, Self>
where Self: Unpin,

Returns a future that reads at offset, and fill buf, on success the number of bytes read is returned.

fn read_at_exact<'a>( &'a mut self, offset: u64, buf: &'a mut [u8], ) -> ReadAtExact<'a, Self>
where Self: Unpin,

Returns a future that reads at offset, and fill buf exactly.

fn read_to_end<'a>(&'a mut self, buf: &'a mut Vec<u8>) -> ReadToEnd<'a, Self>
where Self: Unpin,

Returns a future that appends all data to buf, on success the number of bytes read is returned.

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, D> Encode<Ambiguous1, D> for T
where D: ResourceDialect,

unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _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, D> Encode<Ambiguous2, D> for T
where D: ResourceDialect,

unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _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<U> 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> 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<U> 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<U>>::Error>

Performs the conversion.

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

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

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

fn with_current_subscriber(self) -> WithDispatch<Self>

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