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src/server/worker_task.rs: implement is_active()

This commit is contained in:
Dietmar Maurer 2019-04-07 14:36:25 +02:00
parent 4494d07819
commit b75b968147
1 changed files with 23 additions and 15 deletions
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38
src/server/worker_task.rs
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@ -64,6 +64,28 @@ impl UPID {
path.push(self.to_string());
path
}
/// Test if the task is still running
pub fn is_active(&self) -> bool {
lazy_static! {
static ref MY_PID: i32 = unsafe { libc::getpid() };
static ref MY_PID_PSTART: u64 = tools::procfs::read_proc_pid_stat(*MY_PID).unwrap().starttime;
}
if (self.pid == *MY_PID) && (self.pstart == *MY_PID_PSTART) {
if WORKER_TASK_LIST.lock().unwrap().contains_key(&self.task_id) {
true
} else {
false
}
} else {
match tools::procfs::check_process_running_pstart(self.pid, self.pstart) {
Some(_) => true,
_ => false,
}
}
}
}
@ -194,9 +216,6 @@ pub struct TaskListInfo {
// Returns a sorted list of known tasks,
fn update_active_workers(new_upid: Option<&UPID>) -> Result<Vec<TaskListInfo>, Error> {
let my_pid = unsafe { libc::getpid() };
let my_pid_stat = tools::procfs::read_proc_pid_stat(my_pid)?;
let (backup_uid, backup_gid) = tools::getpwnam_ugid("backup")?;
let uid = Some(nix::unistd::Uid::from_raw(backup_uid));
let gid = Some(nix::unistd::Gid::from_raw(backup_gid));
@ -226,18 +245,7 @@ fn update_active_workers(new_upid: Option<&UPID>) -> Result<Vec<TaskListInfo>, E
Err(err) => bail!("unable to parse active worker status '{}' - {}", line, err),
Ok((upid_str, upid, state)) => {
let running = if (upid.pid == my_pid) && (upid.pstart == my_pid_stat.starttime) {
if WORKER_TASK_LIST.lock().unwrap().contains_key(&upid.task_id) {
true
} else {
false
}
} else {
match tools::procfs::check_process_running_pstart(upid.pid, upid.pstart) {
Some(_) => true,
_ => false,
}
};
let running = upid.is_active();
if running {
active_list.push(TaskListInfo { upid, upid_str, state: None });