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signal handling for tasks daemon (#1651)

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Firstyear 2023-05-25 10:43:26 +10:00 committed by GitHub
parent fcab605320
commit 21d372c09f
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2 changed files with 178 additions and 59 deletions
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79
unix_integration/src/daemon.rs
View file

@ -35,6 +35,7 @@ use sketching::tracing_forest::traits::*;
use sketching::tracing_forest::util::*;
use sketching::tracing_forest::{self};
use tokio::net::{UnixListener, UnixStream};
use tokio::sync::broadcast;
use tokio::sync::mpsc::{channel, Receiver, Sender};
use tokio::sync::oneshot;
use tokio::time;
@ -683,9 +684,18 @@ async fn main() -> ExitCode {
let task_channel_tx_cln = task_channel_tx.clone();
tokio::spawn(async move {
// Start to build the worker tasks
let (broadcast_tx, mut broadcast_rx) = broadcast::channel(4);
let mut c_broadcast_rx = broadcast_tx.subscribe();
let task_b = tokio::spawn(async move {
loop {
match task_listener.accept().await {
tokio::select! {
_ = c_broadcast_rx.recv() => {
break;
}
accept_res = task_listener.accept() => {
match accept_res {
Ok((socket, _addr)) => {
// Did it come from root?
if let Ok(ucred) = socket.peer_cred() {
@ -715,16 +725,23 @@ async fn main() -> ExitCode {
error!("Task Accept error -> {:?}", err);
}
}
}
}
// done
}
});
// TODO: Setup a task that handles pre-fetching here.
let server = async move {
let task_a = tokio::spawn(async move {
loop {
let tc_tx = task_channel_tx_cln.clone();
match listener.accept().await {
tokio::select! {
_ = broadcast_rx.recv() => {
break;
}
accept_res = listener.accept() => {
match accept_res {
Ok((socket, _addr)) => {
let cachelayer_ref = cachelayer.clone();
tokio::spawn(async move {
@ -739,11 +756,59 @@ async fn main() -> ExitCode {
}
}
}
};
}
}
});
info!("Server started ...");
server.await;
loop {
tokio::select! {
Ok(()) = tokio::signal::ctrl_c() => {
break
}
Some(()) = async move {
let sigterm = tokio::signal::unix::SignalKind::terminate();
tokio::signal::unix::signal(sigterm).unwrap().recv().await
} => {
break
}
Some(()) = async move {
let sigterm = tokio::signal::unix::SignalKind::alarm();
tokio::signal::unix::signal(sigterm).unwrap().recv().await
} => {
// Ignore
}
Some(()) = async move {
let sigterm = tokio::signal::unix::SignalKind::hangup();
tokio::signal::unix::signal(sigterm).unwrap().recv().await
} => {
// Ignore
}
Some(()) = async move {
let sigterm = tokio::signal::unix::SignalKind::user_defined1();
tokio::signal::unix::signal(sigterm).unwrap().recv().await
} => {
// Ignore
}
Some(()) = async move {
let sigterm = tokio::signal::unix::SignalKind::user_defined2();
tokio::signal::unix::signal(sigterm).unwrap().recv().await
} => {
// Ignore
}
}
}
info!("Signal received, shutting down");
// Send a broadcast that we are done.
if let Err(e) = broadcast_tx.send(true) {
error!("Unable to shutdown workers {:?}", e);
}
let _ = task_a.await;
let _ = task_b.await;
ExitCode::SUCCESS
})
.await

68
unix_integration/src/tasks_daemon.rs
View file

@ -28,6 +28,7 @@ use sketching::tracing_forest::traits::*;
use sketching::tracing_forest::util::*;
use sketching::tracing_forest::{self};
use tokio::net::UnixStream;
use tokio::sync::broadcast;
use tokio::time;
use tokio_util::codec::{Decoder, Encoder, Framed};
use users::{get_effective_gid, get_effective_uid};
@ -262,12 +263,18 @@ async fn main() -> ExitCode {
let task_sock_path = cfg.task_sock_path.clone();
debug!("Attempting to use {} ...", task_sock_path);
let server = async move {
let (broadcast_tx, mut broadcast_rx) = broadcast::channel(4);
let server = tokio::spawn(async move {
loop {
info!("Attempting to connect to kanidm_unixd ...");
// Try to connect to the daemon.
match UnixStream::connect(&task_sock_path).await {
// Did we connect?
tokio::select! {
_ = broadcast_rx.recv() => {
break;
}
connect_res = UnixStream::connect(&task_sock_path) => {
match connect_res {
Ok(stream) => {
info!("Found kanidm_unixd, waiting for tasks ...");
// Yep! Now let the main handler do it's job.
@ -275,16 +282,63 @@ async fn main() -> ExitCode {
handle_tasks(stream, &cfg).await;
}
Err(e) => {
error!("Unable to find kanidm_unixd, sleeping ...");
debug!("\\---> {:?}", e);
error!("Unable to find kanidm_unixd, sleeping ...");
// Back off.
time::sleep(Duration::from_millis(5000)).await;
}
}
}
};
}
}
});
server.await;
info!("Server started ...");
loop {
tokio::select! {
Ok(()) = tokio::signal::ctrl_c() => {
break
}
Some(()) = async move {
let sigterm = tokio::signal::unix::SignalKind::terminate();
tokio::signal::unix::signal(sigterm).unwrap().recv().await
} => {
break
}
Some(()) = async move {
let sigterm = tokio::signal::unix::SignalKind::alarm();
tokio::signal::unix::signal(sigterm).unwrap().recv().await
} => {
// Ignore
}
Some(()) = async move {
let sigterm = tokio::signal::unix::SignalKind::hangup();
tokio::signal::unix::signal(sigterm).unwrap().recv().await
} => {
// Ignore
}
Some(()) = async move {
let sigterm = tokio::signal::unix::SignalKind::user_defined1();
tokio::signal::unix::signal(sigterm).unwrap().recv().await
} => {
// Ignore
}
Some(()) = async move {
let sigterm = tokio::signal::unix::SignalKind::user_defined2();
tokio::signal::unix::signal(sigterm).unwrap().recv().await
} => {
// Ignore
}
}
}
info!("Signal received, shutting down");
// Send a broadcast that we are done.
if let Err(e) = broadcast_tx.send(true) {
error!("Unable to shutdown workers {:?}", e);
}
let _ = server.await;
ExitCode::SUCCESS
})
.await