ostd::mm::io

Trait FallibleVmRead

Source 
pub trait FallibleVmRead<F> {
    // Required method
    fn read_fallible(
        &mut self,
        writer: &mut VmWriter<'_, F>,
    ) -> Result<usize, (Error, usize)>;
}
Expand description

Fallible memory read from a VmWriter.

Required Methods§

Source

fn read_fallible( &mut self, writer: &mut VmWriter<'_, F>, ) -> Result<usize, (Error, usize)>

Reads all data into the writer until one of the three conditions is met:

  1. The reader has no remaining data.
  2. The writer has no available space.
  3. The reader/writer encounters some error.

On success, the number of bytes read is returned; On error, both the error and the number of bytes read so far are returned.

Implementors§