On Tue, Jul 12, 2016 at 3:25 AM Aymeric Augustin <
[email protected]> wrote:
> def _populate(self):
> with self._lock:
> if self._populated:
> return
> # … populate …
> self._populated = True
>
Depending on how frequently the code is called, it might be worthwhile to
check self._populated prior to obtaining the lock.
def _populate(self):
if self._populated:
return
with self._lock:
if self._populated:
return
# ... populate ...
self._populated = True
This way the only time you're waiting on the lock is when you actually need
to be waiting on the lock, i.e. while another thread is populating.
-Aron
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