Fix potential race condition in timeout handling

There is a potential race condition in closing the tempfile
immediately after SIGKILL-ing the child.  So instead just
close it when we reap the dead child.

Some some versions of Ruby may also not like having the
WORKERS hash being changed while it is iterating through
each_pair, so dup the hash to be on the safe side (should
be cheap, since it's not a deep copy) since kill_worker()
can modify the WORKERS hash.

This is somewhat of a shotgun fix as I can't reproduce the
problem consistently, but oh well.

0 files changed, 0 insertions, 0 deletions