WIP: listen for sighups and reconfigure?

crates/arti/src/lib.rs

@@ -192,6 +192,8 @@ pub use cfg::{
     ApplicationConfig, ApplicationConfigBuilder, ArtiCombinedConfig, ArtiConfig, ArtiConfigBuilder,
     ProxyConfig, ProxyConfigBuilder, SystemConfig, SystemConfigBuilder, ARTI_EXAMPLE_CONFIG,
 };
+use futures::stream::StreamExt;
+use futures::task::SpawnExt;
 pub use logging::{LoggingConfig, LoggingConfigBuilder};
 
 use arti_client::config::default_config_files;
@@ -266,6 +268,17 @@ async fn run<R: Runtime>(
         watch_cfg::watch_for_config_changes(config_sources, arti_config, client.clone())?;
     }
 
+    #[cfg(target_family = "unix")]
+    {
+        // let client = client.clone();
+        let mut sighup_stream = process::sighup_stream()?;
+        runtime.spawn(async move {
+            while let Some(()) = sighup_stream.next().await {
+                info!("SIGHUP!");
+            }
+        })?;
+    }
+
     let mut proxy: Vec<PinnedFuture<(Result<()>, &str)>> = Vec::new();
     if socks_port != 0 {
         let runtime = runtime.clone();