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moninj: restructure timeout

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stop logging errors if satellite is unavailable
drtio: don't even send message if link is down
This commit is contained in:
mwojcik 2022-05-20 12:56:00 +08:00
parent 48c9b43171
commit 24df52268e
2 changed files with 16 additions and 9 deletions
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22
src/runtime/src/moninj.rs
View File

@ -21,6 +21,7 @@ pub enum Error {
NetworkError(smoltcp::Error),
UnexpectedPattern,
UnrecognizedPacket,
}
pub type Result<T> = core::result::Result<T, Error>;
@ -71,6 +72,7 @@ mod remote_moninj {
match reply {
Ok(drtioaux_async::Packet::MonitorReply { value }) => return value as i64,
Ok(packet) => error!("received unexpected aux packet: {:?}", packet),
Err("link went down") => {},
Err(e) => error!("aux packet error ({})", e)
}
0
@ -97,6 +99,7 @@ mod remote_moninj {
match reply {
Ok(drtioaux_async::Packet::InjectionStatusReply { value }) => return value as i8,
Ok(packet) => error!("received unexpected aux packet: {:?}", packet),
Err("link went down") => {},
Err(e) => error!("aux packet error ({})", e)
}
0
@ -164,19 +167,20 @@ async fn handle_connection(stream: &TcpStream, timer: GlobalTimer,
let mut probe_watch_list: BTreeMap<(i32, i8), Option<i64>> = BTreeMap::new();
let mut inject_watch_list: BTreeMap<(i32, i8), Option<i8>> = BTreeMap::new();
let mut next_check = timer.get_time();
let timeout = |next_check: Milliseconds| -> nb::Result<(), Void> {
if timer.get_time() < next_check {
Err(nb::Error::WouldBlock)
} else {
Ok(())
}
};
loop {
// TODO: we don't need fuse() here.
// remove after https://github.com/rust-lang/futures-rs/issues/1989 lands
let read_message_f = read_i8(&stream).fuse();
let next_check_c = next_check.clone();
let timeout = || -> nb::Result<(), Void> {
if timer.get_time() < next_check_c {
Err(nb::Error::WouldBlock)
} else {
Ok(())
}
};
let timeout_f = block_async!(timeout()).fuse();
let timeout_f = block_async!(timeout(next_check_c)).fuse();
pin_mut!(read_message_f, timeout_f);
select_biased! {
message = read_message_f => {
@ -246,7 +250,7 @@ async fn handle_connection(stream: &TcpStream, timer: GlobalTimer,
*previous = Some(current);
}
}
next_check = next_check + Milliseconds(200);
next_check = timer.get_time() + Milliseconds(200);
}
}
}

3
src/runtime/src/rtio_mgt.rs
View File

@ -49,6 +49,9 @@ pub mod drtio {
pub async fn aux_transact(aux_mutex: &Mutex<bool>, linkno: u8, request: &Packet,
timer: GlobalTimer) -> Result<Packet, &'static str> {
if !link_rx_up(linkno).await {
return Err("link went down");
}
let _lock = aux_mutex.lock();
drtioaux_async::send(linkno, request).await.unwrap();
recv_aux_timeout(linkno, 200, timer).await