examples: add cleanup_children

Author: harryplusplus

crates/examples/readme/Cargo.toml

@@ -6,6 +6,7 @@ edition.workspace = true
 [dependencies]
 kill_tree = { path = "../../libs/kill_tree", features = ["tokio"] }
 tokio = { version = "1.36.0", features = ["full"] }
+ctrlc = "3.4.2"
 
 [[bin]]
 name = "kill_tree"
@@ -18,3 +19,7 @@ path = "src/kill_tree_sigkill.rs"
 [[bin]]
 name = "kill_tree_tokio"
 path = "src/kill_tree_tokio.rs"
+
+[[bin]]
+name = "cleanup_children"
+path = "src/cleanup_children.rs"

crates/examples/readme/src/cleanup_children.rs

@@ -0,0 +1,28 @@
+use kill_tree::{blocking::kill_tree_with_config, Config};
+use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::Arc;
+
+fn cleanup_children() {
+    let current_process_id = std::process::id();
+    let config = Config {
+        include_target: false,
+        ..Default::default()
+    };
+    let result = kill_tree_with_config(current_process_id, &config);
+    println!("kill_tree_with_config: {:?}", result);
+}
+
+fn main() {
+    let running = Arc::new(AtomicBool::new(true));
+    let r = running.clone();
+
+    ctrlc::set_handler(move || {
+        cleanup_children();
+        r.store(false, Ordering::SeqCst);
+    })
+    .expect("Error setting Ctrl-C handler");
+
+    println!("Waiting for Ctrl-C...");
+    while running.load(Ordering::SeqCst) {}
+    println!("Got it! Exiting...");
+}