Rocket/lib/src/ext.rs

21 lines
535 B
Rust

use std::io;
pub trait ReadExt: io::Read {
fn read_max(&mut self, mut buf: &mut [u8]) -> io::Result<usize> {
let start_len = buf.len();
while !buf.is_empty() {
match self.read(buf) {
Ok(0) => break,
Ok(n) => { let tmp = buf; buf = &mut tmp[n..]; }
Err(ref e) if e.kind() == io::ErrorKind::Interrupted => {}
Err(e) => return Err(e),
}
}
Ok(start_len - buf.len())
}
}
impl<T: io::Read> ReadExt for T { }