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Revert "libasync: don't let TcpStream::read() call back for empty buffers"

Usually easy to handle in user code and avoids duplicating logic.

This reverts commit e3a6a6e1f8.
This commit is contained in:
Sebastien Bourdeauducq 2020-04-14 09:03:48 +08:00
parent e3a6a6e1f8
commit 1ac10ba0d4
1 changed files with 6 additions and 12 deletions

View File

@ -141,18 +141,12 @@ impl TcpStream {
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
let result = self.stream.with_socket(|mut socket| {
socket.recv(|buf| {
if buf.len() > 0 {
match (self.f)(buf) {
socket.recv(|buf| match (self.f)(buf) {
Poll::Ready((amount, result)) =>
(amount, Poll::Ready(Ok(result))),
Poll::Pending =>
// 0 bytes consumed
(0, Poll::Pending),
}
} else {
(0, Poll::Pending)
}
})
});
match result {