Guido van Rossum added the comment:
This seems okay. I am attaching the changes I had to make to Tulip to support
this. However, two Tulip tests are now failing:
- tulip.events_test.PollEventLoopTests.testCreateSslTransport fails with
spurious file descriptors returned by poll() that aren't in the _fd_to_key dict
(but the corresponding test with Select passes)
- test_sock_client_fail() hangs completely.
Can you see why?
The first failure has this traceback:
Traceback (most recent call last):
File "/Users/guido/tulip/tulip/selectors.py", line 178, in _key_from_fd
return self._fd_to_key[fd]
KeyError: 0
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/guido/tulip/tulip/events_test.py", line 216, in testCreateSslTra\
nsport
el.run()
File "/Users/guido/tulip/tulip/unix_events.py", line 120, in run
self._run_once()
File "/Users/guido/tulip/tulip/unix_events.py", line 592, in _run_once
event_list = self._selector.select(timeout)
File "/Users/guido/tulip/tulip/selectors.py", line 255, in select
key = self._key_from_fd(fd)
File "/Users/guido/tulip/tulip/selectors.py", line 180, in _key_from_fd
raise RuntimeError("No key found for fd {}".format(fd))
RuntimeError: No key found for fd 0
(But the fd value varies -- sometimes it is -2, sometimes a large number.)
The other test busy-loops (keeps polling) and I have no useful traceback.
Also notice the need for a third constant, SELECT_CONNECT. For details see the
class WindowsPollPollster in the Tulip code.
----------
hgrepos: +167
Added file: http://bugs.python.org/file28604/tulip-selectors-1.diff
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