Trait layered_io::ReadLayered [−][src]
pub trait ReadLayered: Read + Bufferable {
fn read_with_status(&mut self, buf: &mut [u8]) -> Result<(usize, Status)>;
fn read_vectored_with_status(
&mut self,
bufs: &mut [IoSliceMut<'_>]
) -> Result<(usize, Status)> { ... }
fn read_exact_using_status(&mut self, buf: &mut [u8]) -> Result<Status> { ... }
fn minimum_buffer_size(&self) -> usize { ... }
}
Expand description
An extension of Read
, with read_with_status
and
read_vectored_with_status
which return status information and zero is not
special-cased. It also allows streams to specify a minimum_buffer_size
.
Required methods
Provided methods
fn read_vectored_with_status(
&mut self,
bufs: &mut [IoSliceMut<'_>]
) -> Result<(usize, Status)>
fn read_vectored_with_status(
&mut self,
bufs: &mut [IoSliceMut<'_>]
) -> Result<(usize, Status)>
Like Read::read_vectored
, but also returns a Status
.
Like Read::read_exact
, but uses read_with_status
to avoid
performing an extra read
at the end.
fn minimum_buffer_size(&self) -> usize
fn minimum_buffer_size(&self) -> usize
Some streams require a buffer of at least a certain size.