Adding response FIFO.

Cargo.lock

@@ -1401,6 +1401,18 @@ dependencies = [
  "tempfile",
 ]
 
+[[package]]
+name = "nix"
+version = "0.30.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74523f3a35e05aba87a1d978330aef40f67b0304ac79c1c00b294c9830543db6"
+dependencies = [
+ "bitflags",
+ "cfg-if",
+ "cfg_aliases",
+ "libc",
+]
+
 [[package]]
 name = "nom"
 version = "7.1.3"
@@ -1973,6 +1985,7 @@ dependencies = [
  "genai",
  "human-panic",
  "irc",
+ "nix",
  "rstest",
  "serde",
  "serde_json",

Cargo.toml

@@ -15,6 +15,10 @@ serde_json = "1.0"
 tracing = "0.1"
 tracing-subscriber = "0.3"
 
+  [dependencies.nix]
+  version = "0.30.1"
+  features = [ "fs" ]
+
   [dependencies.clap]
   version = "4.5"
   features = [ "derive" ]

src/event_manager.rs

@@ -1,9 +1,15 @@
 use std::{collections::VecDeque, path::Path, sync::Arc};
 
 use color_eyre::Result;
+//use nix::{NixPath, sys::stat, unistd::mkfifo};
 use tokio::{
+    //    fs::File,
     io::AsyncWriteExt,
-    net::{UnixListener, UnixStream},
+    net::{
+        UnixListener,
+        UnixStream,
+        //        unix::pipe::{self, Receiver},
+    },
     sync::{RwLock, broadcast},
 };
 use tracing::{error, info};
@@ -46,8 +52,20 @@ impl EventManager {
         Ok(())
     }
 
-    pub async fn start_listening(self: Arc<Self>, path: impl AsRef<Path>) {
-        let listener = UnixListener::bind(path).unwrap();
+    // NB: This assumes it has exclusive control of the FIFO.
+    // async fn start_fifo<P>(path: &P) -> Result<()>
+    // where
+    //     P: AsRef<Path> + NixPath + ?Sized,
+    // {
+    //     // Just delete the old FIFO if it exists.
+    //     let _ = std::fs::remove_file(path);
+    //     mkfifo(path, stat::Mode::S_IRWXU)?;
+
+    //     Ok(())
+    // }
+
+    pub async fn start_listening(self: Arc<Self>, broadcast_path: impl AsRef<Path>) {
+        let listener = UnixListener::bind(broadcast_path).unwrap();
 
         loop {
             match listener.accept().await {