wip: waiter
This commit is contained in:
parent
97ab962ae2
commit
14066e19b6
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@ -44,6 +44,12 @@ version = "1.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
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[[package]]
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name = "bitflags"
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version = "2.4.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "327762f6e5a765692301e5bb513e0d9fef63be86bbc14528052b1cd3e6f03e07"
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[[package]]
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name = "bytes"
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version = "1.5.0"
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@ -119,6 +125,17 @@ dependencies = [
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"windows-sys",
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]
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[[package]]
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name = "nix"
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version = "0.27.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2eb04e9c688eff1c89d72b407f168cf79bb9e867a9d3323ed6c01519eb9cc053"
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dependencies = [
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"bitflags 2.4.1",
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"cfg-if",
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"libc",
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]
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[[package]]
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name = "num_cpus"
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version = "1.16.0"
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@ -191,7 +208,7 @@ version = "0.4.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4722d768eff46b75989dd134e5c353f0d6296e5aaa3132e776cbdb56be7731aa"
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dependencies = [
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"bitflags",
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"bitflags 1.3.2",
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]
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[[package]]
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@ -354,5 +371,6 @@ checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
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name = "wingmate-rs"
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version = "0.1.0"
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dependencies = [
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"nix",
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"tokio",
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]
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@ -6,4 +6,5 @@ edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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nix = {version = "0.27.1", features = ["process"]}
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tokio = { version = "1.34.0", features = ["full"] }
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@ -1,17 +1,8 @@
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use std::error;
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use wingmate_rs::init;
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use tokio::task::{self, JoinHandle};
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn error::Error>> {
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let sig_handler_fn: JoinHandle<Result<(), Box<dyn error::Error + Send + Sync>>> = task::spawn(async {
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init::sighandler::sighandler().await
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});
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if let Err(v) = sig_handler_fn.await? {
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return Err(v as Box<dyn error::Error>)
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}
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Ok(())
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init::daemon::start().await
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}
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@ -1 +1 @@
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pub mod sighandler;
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pub mod daemon;
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@ -0,0 +1,20 @@
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mod sighandler;
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mod waiter;
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use std::error;
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use tokio::task::{self, JoinHandle};
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use tokio::sync::watch;
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pub async fn start() -> Result<(), Box<dyn error::Error>> {
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let (tx, mut _rx) = watch::channel::<i32>(1);
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let sig_handler_fn: JoinHandle<Result<(), Box<dyn error::Error + Send + Sync>>> = task::spawn(async move {
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sighandler::sighandler(tx).await
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});
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if let Err(v) = sig_handler_fn.await? {
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return Err(v as Box<dyn error::Error>)
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}
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Ok(())
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}
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@ -0,0 +1,31 @@
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use std::error;
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use tokio::signal::unix::{signal, SignalKind};
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use tokio::select;
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use tokio::sync::watch::Sender;
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pub async fn sighandler(s: Sender<i32>) -> Result<(), Box<dyn error::Error + Send + Sync>> {
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let mut sigint = signal(SignalKind::interrupt())?;
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let mut sigterm = signal(SignalKind::terminate())?;
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let mut sigchld = signal(SignalKind::child())?;
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'signal: loop {
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select! {
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_ = sigint.recv() => {
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println!("got SIGINT");
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drop(s);
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break 'signal;
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},
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_ = sigterm.recv() => {
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println!("got SIGTERM");
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drop(s);
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break 'signal;
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},
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_ = sigchld.recv() => {
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// do nothing intentionally
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// return Err(())
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},
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}
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}
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Ok(())
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}
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@ -0,0 +1,10 @@
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use nix::sys::wait;
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use nix::unistd::Pid;
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#[allow(dead_code)]
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fn wait_all() {
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match wait::waitpid(Pid::from_raw(-1), Some(wait::WaitPidFlag::WNOHANG)) {
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Ok(_x) => {},
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Err(_err) => {},
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}
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}
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@ -1,23 +0,0 @@
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use std::error;
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use tokio::signal::unix::{signal, SignalKind};
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use tokio::select;
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#[allow(dead_code)]
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pub async fn sighandler() -> Result<(), Box<dyn error::Error + Send + Sync>> {
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let mut sigint = signal(SignalKind::interrupt())?;
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let mut sigterm = signal(SignalKind::terminate())?;
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let mut sigchld = signal(SignalKind::child())?;
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select! {
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_ = sigint.recv() => {
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println!("got SIGINT");
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},
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_ = sigterm.recv() => {
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println!("got SIGTERM");
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},
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_ = sigchld.recv() => {
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// return Err(())
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},
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}
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Ok(())
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}
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