[][src]Struct sgx_tstd::io::Cursor

pub struct Cursor<T> { /* fields omitted */ }

A Cursor wraps an in-memory buffer and provides it with a Seek implementation.

Cursors are used with in-memory buffers, anything implementing AsRef<[u8]>, to allow them to implement Read and/or Write, allowing these buffers to be used anywhere you might use a reader or writer that does actual I/O.

The standard library implements some I/O traits on various types which are commonly used as a buffer, like Cursor<Vec<u8>> and Cursor<[&[u8]][bytes]>.

Methods

impl<T> Cursor<T>[src]

pub fn new(inner: T) -> Cursor<T>[src]

Creates a new cursor wrapping the provided underlying in-memory buffer.

Cursor initial position is 0 even if underlying buffer (e.g., Vec) is not empty. So writing to cursor starts with overwriting Vec content, not with appending to it.

pub fn into_inner(self) -> T[src]

Consumes this cursor, returning the underlying value.

pub fn get_ref(&self) -> &T[src]

Gets a reference to the underlying value in this cursor.

pub fn get_mut(&mut self) -> &mut T[src]

Gets a mutable reference to the underlying value in this cursor.

Care should be taken to avoid modifying the internal I/O state of the underlying value as it may corrupt this cursor's position.

pub fn position(&self) -> u64[src]

Returns the current position of this cursor.

pub fn set_position(&mut self, pos: u64)[src]

Sets the position of this cursor.

Trait Implementations

impl<T> BufRead for Cursor<T> where
    T: AsRef<[u8]>, 
[src]

impl<T: Clone> Clone for Cursor<T>[src]

impl<T: Debug> Debug for Cursor<T>[src]

impl<T: Default> Default for Cursor<T>[src]

impl<T: Eq> Eq for Cursor<T>[src]

impl<T: PartialEq> PartialEq<Cursor<T>> for Cursor<T>[src]

impl<T> Read for Cursor<T> where
    T: AsRef<[u8]>, 
[src]

impl<T> Seek for Cursor<T> where
    T: AsRef<[u8]>, 
[src]

impl<T> StructuralEq for Cursor<T>[src]

impl<T> StructuralPartialEq for Cursor<T>[src]

impl<'_> Write for Cursor<&'_ mut [u8]>[src]

impl<'_> Write for Cursor<&'_ mut Vec<u8>>[src]

impl Write for Cursor<Vec<u8>>[src]

impl Write for Cursor<Box<[u8]>>[src]

Auto Trait Implementations

impl<T> RefUnwindSafe for Cursor<T> where
    T: RefUnwindSafe

impl<T> Send for Cursor<T> where
    T: Send

impl<T> Sync for Cursor<T> where
    T: Sync

impl<T> Unpin for Cursor<T> where
    T: Unpin

impl<T> UnwindSafe for Cursor<T> where
    T: UnwindSafe

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.