Issue #20311: Revert e042ea77a152 and 7ce7295393c2, PollSelector.select() and
EpollSelector.select() round again the timeout towards zero
diff --git a/Lib/selectors.py b/Lib/selectors.py
index 1bdf972..cd8b29e 100644
--- a/Lib/selectors.py
+++ b/Lib/selectors.py
@@ -8,7 +8,6 @@
from abc import ABCMeta, abstractmethod
from collections import namedtuple, Mapping
import functools
-import math
import select
import sys
@@ -357,9 +356,8 @@
elif timeout <= 0:
timeout = 0
else:
- # poll() has a resolution of 1 millisecond, round away from
- # zero to wait *at least* timeout seconds.
- timeout = int(math.ceil(timeout * 1e3))
+ # Round towards zero
+ timeout = int(timeout * 1000)
ready = []
try:
fd_event_list = self._poll.poll(timeout)
@@ -415,10 +413,6 @@
timeout = -1
elif timeout <= 0:
timeout = 0
- else:
- # epoll_wait() has a resolution of 1 millisecond, round away
- # from zero to wait *at least* timeout seconds.
- timeout = math.ceil(timeout * 1e3) * 1e-3
max_ev = len(self._fd_to_key)
ready = []
try: