job-control: one-shot timer instead of repeating

Before f31c26f1afb5 the timer was used to try SIGTERM *and* SIGKILL, so
a repeating timer was needed.  After f31c26f1afb5 process_stop() sends
SIGTERM immediately, and the timer only sends SIGKILL.

So we don't need a repeating timer.
- Simplifies the logic: don't need to call uv_timer_stop() explicitly.
- Avoids a problem: if process_stop() is called more than once in the
  2-second window, the first on_process_exit() would call
  uv_timer_stop() which stops the timer for all stopped processes.

0 files changed, 0 insertions, 0 deletions