Applications can escape from lifecycle

[Ted Gould]

Currently in the releases applications can easily escape for the lifecycle by creating a new process group. To avoid this we need to use cgroups in the application jobs. Currently that is blocked on:

https://bugs.launchpad.net/ubuntu-app-launch/+bug/1357252

After that lands then we can land a branch to fix this bug. Bug is mostly for tracking to ensure we don't miss this going into RTM.

[Ted Gould (ted)]

I was asked, so I thought I'd put the comment here as well. Here's how you avoid the application lifecycle:

int main (int argc, char * argv[]) {
  pid_d pid = 0;
  if ((pid = fork()) != 0) {
    waitpid(pid);
    return 0;
  |
  setpgid(0,0);

  /* You're free!!!!! */
}

The parent will get stopped and started based on application lifecycle states but anything in the rest of the main function will be unaffected.

[Charles Kerr (charlesk)]

Apparently this isn't so critical?

This branch has been floating, approved, for two months... might be good to land it. :P