Struct kernel::iov_iter::IovIter

pub struct IovIter { /* private fields */ }

Wraps the kernel’s struct iov_iter.

Invariants

The pointer IovIter::ptr is non-null and valid.

Trait Implementations

impl IoBufferReader for IovIter

fn len(&self) -> usize

Returns the number of bytes left to be read from the io buffer.

unsafe fn read_raw(&mut self, out: *mut u8, len: usize) -> Result

Reads raw data from the io buffer into a raw kernel buffer.

fn is_empty(&self) -> bool

Returns true if no data is available in the io buffer.

fn read_all(&mut self) -> Result<Vec<u8>>

Reads all data remaining in the io buffer.

fn read_slice(&mut self, data: &mut [u8]) -> Result

Reads a byte slice from the io buffer.

fn read<T: ReadableFromBytes>(&mut self) -> Result<T>

Reads the contents of a plain old data (POD) type from the io buffer.

impl IoBufferWriter for IovIter

fn len(&self) -> usize

Returns the number of bytes left to be written into the io buffer.

fn clear(&mut self, len: usize) -> Result

Writes zeroes to the io buffer.

unsafe fn write_raw(&mut self, data: *const u8, len: usize) -> Result

Writes raw data to the io buffer from a raw kernel buffer.

fn is_empty(&self) -> bool

Returns true if the io buffer cannot hold any additional data.

fn write_slice(&mut self, data: &[u8]) -> Result

Writes a byte slice into the io buffer.

fn write<T: WritableToBytes>(&mut self, data: &T) -> Result

Writes the contents of the given data into the io buffer.