Struct positioned_io::SizeCursor
[−]
[src]
pub struct SizeCursor<I: Size>(_);
Adapts a ReadAt
or WriteAt
into a Read
or Write
, with better seeking.
This is just like Cursor
, except that it requires an object that implements
Size
, and that it can seek from the end of the I/O object.
Eventually it will be legal to specialize Cursor
for types that implement Size
, see
RFC 1210.
Methods
impl<I> SizeCursor<I> where I: Size
[src]
fn new_pos(io: I, pos: u64) -> Self
Create a new SizeCursor
which starts reading at a specified offset.
Pass in a ReadAt
or WriteAt
as io
.
fn new(io: I) -> Self
Create a new SizeCursor
which starts reading at offset zero.
Pass in a ReadAt
or WriteAt
as io
.
Methods from Deref<Target=Cursor<I>>
fn into_inner(self) -> I
Consume self
and yield the inner ReadAt
or WriteAt
.
fn get_ref(&self) -> &I
Borrow the inner ReadAt
or WriteAt
.
fn get_mut(&mut self) -> &mut I
Borrow the inner ReadAt
or WriteAt
mutably.
fn position(&self) -> u64
Get the current read/write position.
fn set_position(&mut self, pos: u64)
Set the current read/write position.
Trait Implementations
impl<I> Deref for SizeCursor<I> where I: Size
[src]
type Target = Cursor<I>
The resulting type after dereferencing
fn deref(&self) -> &Cursor<I>
The method called to dereference a value