how can i find orphan processes?

thecoolguy · 04-08-2006, 04:31 PM

Hi,
I am trying to find orphan processes and kill them. How may I do so effectively?

rickh · 04-08-2006, 04:46 PM

Sure would be helpful if we had even a vague hint at what distro you're using.

If it happens to be Debian ... deborphan

foo_bar_foo · 04-09-2006, 01:01 AM

hi -- just have to handle SIGCHLD

Code:

sig_atomic_t chid_exit_status;

void clean_up_child (int sig_num) {
  int status;
  wait(&status);
  child_exit_status = status; // in case we need this later
}

int main() {
  struct sigaction sigchld_action;
  memset (&sigchld_action,0,sizeof(sigchld_action));
  sigchld_action.sa_handler = &clean_up_child;
  sigaction (SIGCHLD, &sigchld_action, NULL);
  // fork off some children
  return 0;
}