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gh-106751: Optimize _PolllikeSelector for many iteration case #106884

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merged 8 commits into from
Jul 20, 2023
Merged

gh-106751: Optimize _PolllikeSelector for many iteration case #106884

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c9ef467
optimize _PolllikeSelector
eendebakpt Jul 19, 2023
6bc1087
whitespace
eendebakpt Jul 19, 2023
ff2157f
Update Lib/selectors.py
eendebakpt Jul 19, 2023
119f01c
fix typo; convert register as well
eendebakpt Jul 19, 2023
e871b1b
Merge branch 'polllikeselector' of githubeendebakpt:eendebakpt/cpytho…
eendebakpt Jul 19, 2023
d367470
📜🤖 Added by blurb_it.
blurb-it[bot] Jul 19, 2023
f60f887
Update Lib/selectors.py
eendebakpt Jul 19, 2023
fa72c2a
Merge branch 'main' into polllikeselector
eendebakpt Jul 19, 2023
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18 changes: 6 additions & 12 deletions Lib/selectors.py
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Original file line number Diff line number Diff line change
Expand Up @@ -369,11 +369,8 @@ def modify(self, fileobj, events, data=None):

changed = False
if events != key.events:
selector_events = 0
if events & EVENT_READ:
selector_events |= self._EVENT_READ
if events & EVENT_WRITE:
selector_events |= self._EVENT_WRITE
selector_events = ((events & EVENT_READ and self._EVENT_READ)
| (events & EVENT_WRITE and self._EVENT_WRITE) )
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try:
self._selector.modify(key.fd, selector_events)
except:
Expand Down Expand Up @@ -404,15 +401,12 @@ def select(self, timeout=None):
fd_event_list = self._selector.poll(timeout)
except InterruptedError:
return ready
fd_to_key_get = self._fd_to_key.get
for fd, event in fd_event_list:
events = 0
if event & ~self._EVENT_READ:
events |= EVENT_WRITE
if event & ~self._EVENT_WRITE:
events |= EVENT_READ

key = self._fd_to_key.get(fd)
key = fd_to_key_get(fd)
if key:
events = ( (event & ~self._EVENT_READ and EVENT_WRITE)
| (event & ~self.EVENT_WRITE and EVENT_READ))
ready.append((key, events & key.events))
return ready

Expand Down