forked from M-Labs/artiq-zynq
runtime.comms: run idle kernel pre experiment
Split idle kernel and experiment kernel into separate tasks. Added binary semaphore to control program flow.
parent
a08a42c954
commit
c30d950761
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@ -722,49 +722,71 @@ pub fn main(timer: GlobalTimer, cfg: Config) {
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mgmt::start(cfg);
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task::spawn(async move {
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let connection = Rc::new(Semaphore::new(1, 1));
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let terminate = Rc::new(Semaphore::new(0, 1));
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let enter_idle = Rc::new(Semaphore::new(1, 1));
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let term_idle = Rc::new(Semaphore::new(0, 1));
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let enter_conn = Rc::new(Semaphore::new(0, 1));
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let term_conn = Rc::new(Semaphore::new(0, 1));
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loop {
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let mut stream = TcpStream::accept(1381, 0x10_000, 0x10_000).await.unwrap();
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if connection.try_wait().is_none() {
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// there is an existing connection
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terminate.signal();
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connection.async_wait().await;
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}
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let control = control.clone();
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let idle_kernel = idle_kernel.clone();
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let connection = connection.clone();
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let terminate = terminate.clone();
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let up_destinations = up_destinations.clone();
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let aux_mutex = aux_mutex.clone();
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let routing_table = drtio_routing_table.clone();
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// we make sure the value of terminate is 0 before we start
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let _ = terminate.try_wait();
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task::spawn(async move {
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let routing_table = routing_table.borrow();
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select_biased! {
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_ = (async {
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let _ = handle_connection(&mut stream, control.clone(), &up_destinations, &aux_mutex, &routing_table, timer)
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.await
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.map_err(|e| warn!("connection terminated: {}", e));
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if let Some(buffer) = &*idle_kernel {
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task::spawn({
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let control = control.clone();
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let idle_kernel = idle_kernel.clone();
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let up_destinations = up_destinations.clone();
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let aux_mutex = aux_mutex.clone();
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let drtio_routing_table = drtio_routing_table.clone();
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let enter_idle = enter_idle.clone();
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let term_idle = term_idle.clone();
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let enter_conn = enter_conn.clone();
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async move {
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enter_idle.async_wait().await;
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let routing_table = drtio_routing_table.borrow();
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select_biased! {
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_ = (async {
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info!("Loading idle kernel");
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let _ = load_kernel(&buffer, &control, None)
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.await.map_err(|_| warn!("error loading idle kernel"));
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info!("Running idle kernel");
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let _ = handle_run_kernel(None, &control, &up_destinations, &aux_mutex, &routing_table, timer)
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.await.map_err(|_| warn!("error running idle kernel"));
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info!("Idle kernel terminated");
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}
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}).fuse() => (),
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_ = terminate.async_wait().fuse() => ()
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if let Some(buffer) = &*idle_kernel {
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let _ = load_kernel(&buffer, &control, None)
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.await.map_err(|_| warn!("error loading idle kernel"));
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info!("Running idle kernel");
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let _ = handle_run_kernel(None, &control, &up_destinations, &aux_mutex, &routing_table, timer)
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.await.map_err(|_| warn!("error running idle kernel"));
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info!("Idle kernel terminated");
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} else {
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info!("No idle kernel found");
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}
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}).fuse() => (),
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_ = term_idle.async_wait().fuse() => ()
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}
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enter_conn.signal()
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}
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});
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let mut stream = TcpStream::accept(1381, 0x10_000, 0x10_000).await.unwrap();
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term_conn.signal();
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term_idle.signal();
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enter_conn.async_wait().await;
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let _ = term_conn.try_wait();
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let _ = term_idle.try_wait();
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task::spawn({
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let control = control.clone();
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let up_destinations = up_destinations.clone();
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let aux_mutex = aux_mutex.clone();
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let drtio_routing_table = drtio_routing_table.clone();
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let term_conn = term_conn.clone();
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let enter_idle = enter_idle.clone();
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async move {
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let routing_table = drtio_routing_table.borrow();
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select_biased! {
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_ = (async {
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let _ = handle_connection(&mut stream, control.clone(), &up_destinations, &aux_mutex, &routing_table, timer)
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.await
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.map_err(|e| warn!("connection terminated: {}", e));
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}).fuse() => (),
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_ = term_conn.async_wait().fuse() => ()
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}
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enter_idle.signal();
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let _ = stream.flush().await;
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let _ = stream.abort().await;
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}
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connection.signal();
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let _ = stream.flush().await;
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let _ = stream.abort().await;
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});
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}
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});
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