Trait method lrs::io::Read::read_all

Tries to read bytes until the buffer is buffer.

Syntax

fn read_all(&mut self, buf: &mut [u8]) -> Result<usize, Errno>

Arguments

Return value

Returns the total number of bytes read.

Remarks

The default implementation calls read multiple times until the buffer is full or 0 is returned. If an error occurs the error is returned immediately and all bytes read up to that point are lost. This convenience method should thus not be used in reliable programs.

See also

• read