Fix WriteFmtFuture not taking into account already written bytes
@@ -11,7 +11,7 @@ pub struct WriteFmtFuture<'a, T: Unpin + ?Sized> {
pub(crate) writer: &'a mut T,
pub(crate) res: Option<io::Result<Vec<u8>>>,
pub(crate) buffer: Option<Vec<u8>>,
- pub(crate) amt: u64,
+ pub(crate) amt: usize,
}
impl<T: Write + Unpin + ?Sized> Future for WriteFmtFuture<'_, T> {
@@ -37,15 +37,15 @@ impl<T: Write + Unpin + ?Sized> Future for WriteFmtFuture<'_, T> {
// Copy the data from the buffer into the writer until it's done.
loop {
- if *amt == buffer.len() as u64 {
+ if *amt == buffer.len() {
futures_core::ready!(Pin::new(&mut **writer).poll_flush(cx))?;
return Poll::Ready(Ok(()));
}
- let i = futures_core::ready!(Pin::new(&mut **writer).poll_write(cx, buffer))?;
+ let i = futures_core::ready!(Pin::new(&mut **writer).poll_write(cx, &buffer[*amt..]))?;
if i == 0 {
return Poll::Ready(Err(io::ErrorKind::WriteZero.into()));
}
- *amt += i as u64;
+ *amt += i;
}
}
}
