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cgroup: support to set threaded mode in cgroup v2

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Support to set threaded mode in cgroup v2. The premise of switching to threaded mode is that only the cgroup of cpuset, cpu and pids is supported.

Fixes: #90

Signed-off-by: yaoyinnan <yaoyinnan@foxmail.com>
This commit is contained in:
yaoyinnan
2022-12-30 12:46:50 +08:00
parent 0348f0a95e
commit c9d02afe33
14 changed files with 421 additions and 82 deletions
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tests/pids.rs
+5 -5
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@@ -17,7 +17,7 @@ use libc::pid_t;
#[test]
fn create_and_delete_cgroup() {
let h = cgroups_rs::hierarchies::auto();
let cg = Cgroup::new(h, String::from("create_and_delete_cgroup"));
let cg = Cgroup::new(h, String::from("create_and_delete_cgroup")).unwrap();
{
let pidcontroller: &PidController = cg.controller_of().unwrap();
pidcontroller.set_pid_max(MaxValue::Value(1337)).unwrap();
@@ -31,7 +31,7 @@ fn create_and_delete_cgroup() {
#[test]
fn test_pids_current_is_zero() {
let h = cgroups_rs::hierarchies::auto();
let cg = Cgroup::new(h, String::from("test_pids_current_is_zero"));
let cg = Cgroup::new(h, String::from("test_pids_current_is_zero")).unwrap();
{
let pidcontroller: &PidController = cg.controller_of().unwrap();
let current = pidcontroller.get_pid_current();
@@ -43,7 +43,7 @@ fn test_pids_current_is_zero() {
#[test]
fn test_pids_events_is_zero() {
let h = cgroups_rs::hierarchies::auto();
let cg = Cgroup::new(h, String::from("test_pids_events_is_zero"));
let cg = Cgroup::new(h, String::from("test_pids_events_is_zero")).unwrap();
{
let pidcontroller: &PidController = cg.controller_of().unwrap();
let events = pidcontroller.get_pid_events();
@@ -56,7 +56,7 @@ fn test_pids_events_is_zero() {
#[test]
fn test_pid_events_is_not_zero() {
let h = cgroups_rs::hierarchies::auto();
let cg = Cgroup::new(h, String::from("test_pid_events_is_not_zero"));
let cg = Cgroup::new(h, String::from("test_pid_events_is_not_zero")).unwrap();
{
let pids: &PidController = cg.controller_of().unwrap();
let before = pids.get_pid_events();
@@ -65,7 +65,7 @@ fn test_pid_events_is_not_zero() {
match unsafe { fork() } {
Ok(ForkResult::Parent { child, .. }) => {
// move the process into the control group
let _ = pids.add_task(&(pid_t::from(child) as u64).into());
let _ = pids.add_task_by_tgid(&(pid_t::from(child) as u64).into());
println!("added task to cg: {:?}", child);