add get_threads

src/bin/izoli.rs

@@ -1,12 +1,13 @@
 use izolilib::cgroup::cgroup::CGroup;
 
 fn main() {
-    let cgroup = CGroup::new("test").unwrap();
+    let cgroup = CGroup::new("").unwrap();
     println!("{:?}", cgroup.get_root_path());
     println!("{}", cgroup.check_status());
     println!("{:?}", cgroup.read("cgroup.type"));
     println!("{:?}", cgroup.get_controllers());
     println!("{:?}", cgroup.get_subtree_control());
     println!("{:?}", cgroup.get_procs());
+    println!("{:?}", cgroup.get_threads());
     println!("{:?}", cgroup.get_stat());
 }

src/cgroup/cgroup.rs

@@ -76,8 +76,16 @@ impl CGroup {
     }
 
     pub fn get_procs(&self) -> Result<Vec<u32>, std::io::Error> {
+        self.get_u32_list("cgroup.procs")
+    }
+
+    pub fn get_threads(&self) -> Result<Vec<u32>, std::io::Error> {
+        self.get_u32_list("cgroup.threads")
+    }
+
+    fn get_u32_list(&self, name: &str) -> Result<Vec<u32>, std::io::Error> {
         let procs = self
-            .read("cgroup.procs")?
+            .read(name)?
             .lines()
             .map(|proc| u32::from_str(proc.trim()).unwrap())
             .collect();