helper: Add threads

Signed-off-by: Patrick José Pereira <[email protected]>

src/helper/mod.rs

@@ -1,2 +1,3 @@
 #[macro_use]
 pub mod macros;
+pub mod threads;

src/helper/threads.rs

@@ -0,0 +1,24 @@
+use std::thread;
+use std::time::Duration;
+use sysinfo::{ProcessExt, System, SystemExt};
+use tracing::*;
+
+pub fn start_thread_counter_thread() {
+    let mut system = System::new_all();
+    let pid = sysinfo::get_current_pid().expect("Failed to get current PID.");
+    thread::spawn(move || loop {
+        system.refresh_processes();
+        let child_processes: Vec<_> = system
+            .processes()
+            .iter()
+            .filter(|(_, process)| {
+                process
+                    .parent()
+                    .map_or(false, |parent_pid| parent_pid == pid)
+            })
+            .collect();
+
+        info!("Number of child processes: {}", child_processes.len(),);
+        thread::sleep(Duration::from_secs(1));
+    });
+}