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Issue #20311: EpollSelector now also rounds the timeout towards zero, as

Browse source 
PollSelector.

This change is not really required in Python 3.4, since select.epoll.poll() now
rounds also correctly the timeout. But Guido van Rossum prefers to have exactly
the same selectors.py file in CPython and Tulip projects: "it's not harmful".
This commit is contained in:
Victor Stinner 2014-01-21 21:00:47 +01:00
parent 2d854c8e7b
commit 567b26e882
1 changed files with 8 additions and 1 deletions
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9
Lib/selectors.py
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@ -411,7 +411,14 @@ def unregister(self, fileobj):
return key
def select(self, timeout=None):
timeout = -1 if timeout is None else max(timeout, 0)
if timeout is None:
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: