procutil: make recent fix for zombies compatible with py2
The fix in ed684a82e29b (procutil: always waiting on child processes
to prevent zombies with 'hg serve', 2020-05-07) works only on Python 3
because it passes a `daemon` argument to `threading.Thread()`. Python
2 requires you to assign to the `.daemon` property instead. Python 3
also seems to support that, so this patch fixes the code by
unconditionally using the old form.
Differential Revision: https://phab.mercurial-scm.org/D8657
--- a/mercurial/utils/procutil.py Wed Jun 24 04:25:34 2020 +0200
+++ b/mercurial/utils/procutil.py Thu Jun 25 00:06:23 2020 -0700
@@ -615,7 +615,9 @@
def _do_wait():
os.waitpid(pid, 0)
- threading.Thread(target=_do_wait, daemon=True).start()
+ t = threading.Thread(target=_do_wait)
+ t.daemon = True
+ t.start()
return
# Parent process
(_pid, status) = os.waitpid(pid, 0)