Struct SimpleBuffer

pub struct SimpleBuffer { /* private fields */ }

A simple buffer to use for transferring bytes between compartments, using shared memory via objects underneath.

Implementations

impl SimpleBuffer

pub fn new(handle: ObjectHandle) -> Self

Build a new SimpleBuffer from an object handle.

pub fn max_len(&self) -> usize

Returns the maximum length of a read or write.

pub fn handle(&self) -> &ObjectHandle

Get the underlying object handle.

pub fn read(&self, buffer: &mut [u8]) -> usize

Read bytes from the SimpleBuffer into buffer, up to the size of the supplied buffer. The actual number of bytes copied is returned.

pub fn read_offset(&self, buffer: &mut [u8], offset: usize) -> usize

pub fn write(&mut self, buffer: &[u8]) -> usize

Write bytes from buffer into the SimpleBuffer, up to the size of the supplied buffer. The actual number of bytes copied is returned.

pub fn write_offset(&mut self, buffer: &[u8], offset: usize) -> usize

Write bytes from buffer into the SimpleBuffer at provided offset, up to the size of the supplied buffer, minus the offset. The actual number of bytes copied is returned.

Trait Implementations

impl Debug for SimpleBuffer

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

Formats the value using the given formatter.